* [Regression] Filesystem I/O is CPU-bound in rc7 and rc8
@ 2010-02-14 3:11 James Cloos
2010-02-14 16:40 ` James Cloos
` (3 more replies)
0 siblings, 4 replies; 13+ messages in thread
From: James Cloos @ 2010-02-14 3:11 UTC (permalink / raw)
To: linux-kernel; +Cc: linux-fsdevel, linux-ext4, linux-btrfs, jfs-discussion
Sometime between rc6 and rc7 all filesystem I/O started using 100% CPU,
usually on the order of 60% sys, 40% user.
I've tried this with each of ext4, jfs and btrfs filesystems. All show
the same issue.
Using dd(1) to read from the block specials directly works as well and
as fast as it always has; only reading or writing to mounted filesystems
is affected.
Box is 32-bit x86, PentiumIII-M; drives are ide using libata.
If the btrfs fs is mounted, the slowdown is enought to trigger the
hung_task call trace (120s) on the btrfs-transac process.
But the regression is just as apparent when only jfs and ext4 are mounted.
The only filesystems I've found which avoid the regression are tmpfs and
devtmpfs.
I didn't have time to write up a report when I noticed this in rc7 but
had to boot back into rc6 for work.
Some of the commits since rc7 looked like they might have addressed this
regression, but it persists in rc8.
-JimC
--
James Cloos <cloos@jhcloos.com> OpenPGP: 1024D/ED7DAEA6
^ permalink raw reply [flat|nested] 13+ messages in thread* Re: [Regression] Filesystem I/O is CPU-bound in rc7 and rc8 2010-02-14 3:11 [Regression] Filesystem I/O is CPU-bound in rc7 and rc8 James Cloos @ 2010-02-14 16:40 ` James Cloos 2010-02-14 23:12 ` Rafael J. Wysocki ` (2 subsequent siblings) 3 siblings, 0 replies; 13+ messages in thread From: James Cloos @ 2010-02-14 16:40 UTC (permalink / raw) To: linux-kernel; +Cc: linux-fsdevel, linux-ext4, linux-btrfs, jfs-discussion I forgot to say: # CONFIG_SMP is not set CONFIG_TREE_PREEMPT_RCU=y # CONFIG_PREEMPT_NONE is not set # CONFIG_PREEMPT_VOLUNTARY is not set CONFIG_PREEMPT=y # CONFIG_DEBUG_PREEMPT is not set # CONFIG_PREEMPT_TRACER is not set -JimC -- James Cloos <cloos@jhcloos.com> OpenPGP: 1024D/ED7DAEA6 ^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [Regression] Filesystem I/O is CPU-bound in rc7 and rc8 2010-02-14 3:11 [Regression] Filesystem I/O is CPU-bound in rc7 and rc8 James Cloos 2010-02-14 16:40 ` James Cloos @ 2010-02-14 23:12 ` Rafael J. Wysocki 2010-02-15 15:45 ` Chris Mason 2010-02-19 21:22 ` Mike Fedyk 3 siblings, 0 replies; 13+ messages in thread From: Rafael J. Wysocki @ 2010-02-14 23:12 UTC (permalink / raw) To: James Cloos Cc: linux-kernel, linux-fsdevel, linux-ext4, linux-btrfs, jfs-discussion On Sunday 14 February 2010, James Cloos wrote: > Sometime between rc6 and rc7 all filesystem I/O started using 100% CPU, > usually on the order of 60% sys, 40% user. > > I've tried this with each of ext4, jfs and btrfs filesystems. All show > the same issue. > > Using dd(1) to read from the block specials directly works as well and > as fast as it always has; only reading or writing to mounted filesystems > is affected. > > Box is 32-bit x86, PentiumIII-M; drives are ide using libata. > > If the btrfs fs is mounted, the slowdown is enought to trigger the > hung_task call trace (120s) on the btrfs-transac process. > > But the regression is just as apparent when only jfs and ext4 are mounted. > > The only filesystems I've found which avoid the regression are tmpfs and > devtmpfs. > > I didn't have time to write up a report when I noticed this in rc7 but > had to boot back into rc6 for work. > > Some of the commits since rc7 looked like they might have addressed this > regression, but it persists in rc8. I have created the bug entry at http://bugzilla.kernel.org/show_bug.cgi?id=15306 for your report. Thanks, Rafael ^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [Regression] Filesystem I/O is CPU-bound in rc7 and rc8 2010-02-14 3:11 [Regression] Filesystem I/O is CPU-bound in rc7 and rc8 James Cloos 2010-02-14 16:40 ` James Cloos 2010-02-14 23:12 ` Rafael J. Wysocki @ 2010-02-15 15:45 ` Chris Mason 2010-02-15 19:27 ` James Cloos 2010-02-17 20:04 ` James Cloos 2010-02-19 21:22 ` Mike Fedyk 3 siblings, 2 replies; 13+ messages in thread From: Chris Mason @ 2010-02-15 15:45 UTC (permalink / raw) To: James Cloos Cc: linux-kernel, linux-fsdevel, linux-ext4, linux-btrfs, jfs-discussion On Sat, Feb 13, 2010 at 10:11:07PM -0500, James Cloos wrote: > Sometime between rc6 and rc7 all filesystem I/O started using 100% CPU, > usually on the order of 60% sys, 40% user. > > I've tried this with each of ext4, jfs and btrfs filesystems. All show > the same issue. > > Using dd(1) to read from the block specials directly works as well and > as fast as it always has; only reading or writing to mounted filesystems > is affected. > > Box is 32-bit x86, PentiumIII-M; drives are ide using libata. > > If the btrfs fs is mounted, the slowdown is enought to trigger the > hung_task call trace (120s) on the btrfs-transac process. > > But the regression is just as apparent when only jfs and ext4 are mounted. > > The only filesystems I've found which avoid the regression are tmpfs and > devtmpfs. Could you please hit sysrq-l a few times during the high CPU usage and send us the results? Also, please send along the full dd command line you are using and how much ram your system has. (Even better would be running perf record <your dd command line>, if you're willing to setup perf) Thanks! ^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [Regression] Filesystem I/O is CPU-bound in rc7 and rc8 2010-02-15 15:45 ` Chris Mason @ 2010-02-15 19:27 ` James Cloos 2010-02-17 20:04 ` James Cloos 1 sibling, 0 replies; 13+ messages in thread From: James Cloos @ 2010-02-15 19:27 UTC (permalink / raw) To: Chris Mason Cc: linux-kernel, linux-fsdevel, linux-ext4, linux-btrfs, jfs-discussion [-- Attachment #1: Type: text/plain, Size: 3170 bytes --] >>>>> "Chris" == Chris Mason <chris.mason@oracle.com> writes: >> Sometime between rc6 and rc7 all filesystem I/O started using 100% CPU, >> usually on the order of 60% sys, 40% user. Chris> (Even better would be running perf record <your dd command line>, if Chris> you're willing to setup perf) The box has 512MB (the chipset's max). (I did mention p3m, therefore OLD! :) :; mount /dev/root on / type jfs (rw,noatime) /dev/sda3 on /var type ext4 (rw,noatime,barrier=1,data=ordered) /dev/sdb2 on /media/bay type btrfs (rw,noatime,noacl) : I only vaguely remember installing perf.... :; perf version perf version 0.0.1.PERF :; perf record dd if=/dev/sda4 of=/dev/null bs=4M count=16 16+0 records in 16+0 records out 67108864 bytes (67 MB) copied, 14.7279 s, 4.6 MB/s [ perf record: Captured and wrote 0.803 MB perf1.data (~35093 samples) ] :; perf record dd if=/dev/sdb2 of=/dev/null bs=4M count=16 16+0 records in 16+0 records out 67108864 bytes (67 MB) copied, 7.31642 s, 9.2 MB/s [ perf record: Captured and wrote 0.938 MB perf2.data (~40980 samples) ] :; perf record dd if=/dev/sdc2 of=/dev/null bs=4M count=16 16+0 records in 16+0 records out 67108864 bytes (67 MB) copied, 60.9204 s, 1.1 MB/s [ perf record: Captured and wrote 3.309 MB perf3.data (~144590 samples) ] (I then mounted: /dev/sdc2 on /media/usb type ext4 (rw,relatime,barrier=1,data=ordered) ) :; perf record dd if=/dev/zero of=ZERO bs=4M count=16 # sda4 16+0 records in 16+0 records out 67108864 bytes (67 MB) copied, 10.0027 s, 6.7 MB/s [ perf record: Captured and wrote 1.634 MB perf4.data (~71386 samples) ] :; perf record dd if=/dev/zero of=/var/tmp/ZERO bs=4M count=16 # sda3 16+0 records in 16+0 records out 67108864 bytes (67 MB) copied, 1.712 s, 39.2 MB/s [ perf record: Captured and wrote 0.364 MB perf5.data (~15915 samples) ] :; perf record dd if=/dev/zero of=/media/bay/ZERO bs=4M count=16 16+0 records in 16+0 records out 67108864 bytes (67 MB) copied, 4.51859 s, 14.9 MB/s [ perf record: Captured and wrote 0.611 MB perf6.data (~26675 samples) ] :; perf record dd if=/dev/zero of=/media/usb/ZERO bs=4M count=16 16+0 records in 16+0 records out 67108864 bytes (67 MB) copied, 8.49166 s, 7.9 MB/s [ perf record: Captured and wrote 1.523 MB perf.data (~66556 samples) ] :; for ij in /media/usb/ZERO /media/bay/ZERO /var/tmp/ZERO /root/ZERO;do perf record dd of=/dev/null if=${ij} bs=4M count=16; mv -v perf.data perf$[kl++].data; done 16+0 records in 16+0 records out 67108864 bytes (67 MB) copied, 49.1844 s, 1.4 MB/s [ perf record: Captured and wrote 0.569 MB perf.data (~24858 samples) ] `perf.data' -> `perf8.data' 16+0 records in 16+0 records out 67108864 bytes (67 MB) copied, 10.0016 s, 6.7 MB/s [ perf record: Captured and wrote 0.948 MB perf.data (~41438 samples) ] `perf.data' -> `perf9.data' 16+0 records in 16+0 records out 67108864 bytes (67 MB) copied, 5.72855 s, 11.7 MB/s [ perf record: Captured and wrote 0.580 MB perf.data (~25355 samples) ] `perf.data' -> `perf10.data' 16+0 records in 16+0 records out 67108864 bytes (67 MB) copied, 7.32789 s, 9.2 MB/s [ perf record: Captured and wrote 0.899 MB perf.data (~39278 samples) ] `perf.data' -> `perf11.data' [-- Attachment #2: perf1.report --] [-- Type: text/plain, Size: 29694 bytes --] # Samples: 35051 # # Overhead Command Shared Object Symbol # ........ ....... ....................... ...... # 15.06% dd [kernel] [k] __copy_to_user_ll 13.82% dd [kernel] [k] __make_request 7.13% dd [kernel] [k] get_page_from_freelist 4.60% dd [kernel] [k] scsi_dispatch_cmd 4.44% dd [kernel] [k] block_read_full_page 3.46% dd [kernel] [k] generic_make_request 3.41% dd [kernel] [k] scsi_request_fn 2.50% dd [kernel] [k] kmem_cache_alloc 2.01% dd [kernel] [k] blkdev_get_block 1.66% dd [kernel] [k] get_request 1.63% dd [kernel] [k] generic_file_aio_read 1.63% dd [kernel] [k] __alloc_pages_nodemask 1.60% dd [kernel] [k] add_to_page_cache_locked 1.41% dd [kernel] [k] __do_page_cache_readahead 1.31% dd [kernel] [k] file_read_actor 1.17% dd [kernel] [k] submit_bh 1.03% dd [kernel] [k] blk_end_bidi_request 0.97% dd [kernel] [k] bio_alloc_bioset 0.88% dd [kernel] [k] __rcu_read_unlock 0.85% dd [kernel] [k] T.1339 0.84% perf [kernel] [k] generic_file_buffered_write 0.84% dd [kernel] [k] zone_watermark_ok 0.83% dd [kernel] [k] find_get_page 0.81% dd [kernel] [k] put_page 0.75% dd [kernel] [k] ata_sff_interrupt 0.72% dd [kernel] [k] ____pagevec_lru_add 0.72% dd [kernel] [k] alloc_page_buffers 0.63% dd [kernel] [k] submit_bio 0.63% dd [kernel] [k] schedule 0.63% dd [kernel] [k] blk_queue_bounce 0.57% dd [kernel] [k] create_empty_buffers 0.54% perf [kernel] [k] __generic_file_aio_write 0.53% dd [kernel] [k] __lru_cache_add 0.53% dd [kernel] [k] alloc_buffer_head 0.53% dd [kernel] [k] next_zones_zonelist 0.49% dd [kernel] [k] mempool_alloc 0.48% dd [kernel] [k] add_to_page_cache_lru 0.39% dd [kernel] [k] bio_init 0.39% dd [kernel] [k] handle_IRQ_event 0.35% dd [kernel] [k] radix_tree_preload 0.34% dd [kernel] [k] radix_tree_lookup 0.31% perf [kernel] [k] generic_file_aio_write 0.31% perf [kernel] [k] nobh_write_end 0.30% dd [kernel] [k] __rcu_read_lock 0.30% dd [kernel] [k] __do_softirq 0.29% dd [kernel] [k] radix_tree_lookup_slot 0.28% perf [kernel] [k] iov_iter_advance 0.28% dd [kernel] [k] __blk_recalc_rq_segments 0.28% dd [kernel] [k] cfq_set_request 0.26% perf [kernel] [k] __jfs_getxattr 0.26% perf [kernel] [k] iov_iter_copy_from_user_atomic 0.25% perf [kernel] [k] getnstimeofday 0.25% perf [kernel] [k] nobh_write_begin 0.25% dd [kernel] [k] do_page_fault 0.24% perf [kernel] [k] sysenter_past_esp 0.24% perf [kernel] [k] do_sync_write 0.23% dd [kernel] [k] rcu_sched_qs 0.23% dd [kernel] [k] bio_put 0.22% dd [kernel] [k] unmap_vmas 0.22% dd [kernel] [k] _cond_resched 0.22% perf [kernel] [k] vfs_write 0.22% dd [kernel] [k] mempool_alloc_slab 0.21% dd [kernel] [k] mark_page_accessed 0.20% dd [kernel] [k] req_bio_endio 0.19% perf [kernel] [k] sys_write 0.19% dd [kernel] [k] blk_rq_init 0.19% perf [kernel] [k] rw_verify_area 0.19% perf [kernel] [k] acpi_pm_read 0.19% perf [kernel] [k] find_get_page 0.19% dd [kernel] [k] blk_update_request 0.17% perf [kernel] [k] generic_segment_checks 0.17% dd [kernel] [k] preempt_schedule 0.17% perf [kernel] [k] __copy_from_user_ll_nozero 0.17% perf [kernel] [k] jfs_write_begin 0.17% dd [kernel] [k] free_hot_cold_page 0.17% dd [kernel] [k] bio_alloc 0.16% perf [kernel] [k] copy_to_user 0.15% dd [kernel] [k] blkdev_readpage 0.15% dd [kernel] [k] set_bh_page 0.15% dd [kernel] [k] ehci_watchdog [ehci_hcd] 0.14% perf [kernel] [k] T.1339 0.14% perf [kernel] [k] sys_gettimeofday 0.14% perf [kernel] [k] ea_get 0.13% dd [kernel] [k] handle_mm_fault 0.12% dd [kernel] [k] get_io_context 0.11% perf [kernel] [k] fget_light 0.11% perf [kernel] [k] grab_cache_page_write_begin 0.11% perf [kernel] [k] balance_dirty_pages_ratelimited_nr 0.11% perf [kernel] [k] iov_iter_fault_in_readable 0.11% perf [kernel] [k] __set_page_dirty_buffers 0.10% perf [kernel] [k] __mark_inode_dirty 0.10% perf [kernel] [k] fsnotify 0.10% perf [kernel] [k] jfs_getxattr 0.10% perf [kernel] [k] vsnprintf 0.10% dd [kernel] [k] end_buffer_async_read 0.10% perf [kernel] [k] inotify_dentry_parent_queue_event 0.09% perf [kernel] [k] put_page 0.09% perf [kernel] [k] kfree 0.09% dd [kernel] [k] mix_pool_bytes_extract 0.09% perf [vdso] [.] 0x000000ffffe424 0.09% perf [kernel] [k] inotify_inode_queue_event 0.09% perf [kernel] [k] number 0.09% perf [kernel] [k] scsi_dispatch_cmd 0.09% dd [kernel] [k] init_request_from_bio 0.09% dd [kernel] [k] scsi_init_cmd_errh 0.08% perf [kernel] [k] schedule 0.08% dd [kernel] [k] kmem_cache_free 0.08% perf [kernel] [k] should_remove_suid 0.08% dd [kernel] [k] blk_rq_bio_prep 0.07% dd [kernel] [k] do_mpage_readpage 0.07% perf [kernel] [k] unlock_page 0.07% perf [kernel] [k] find_lock_page 0.07% perf [kernel] [k] __rcu_read_unlock 0.07% perf [kernel] [k] generic_write_sync 0.07% perf [kernel] [k] dbAlloc 0.07% perf [kernel] [k] extAlloc 0.07% perf [kernel] [k] file_update_time 0.07% perf [kernel] [k] radix_tree_lookup_slot 0.07% dd [kernel] [k] current_io_context 0.06% perf [kernel] [k] do_gettimeofday 0.06% perf [kernel] [k] xtSearch 0.06% perf /home/cloos/bin/perf [.] __cmd_record 0.06% dd [kernel] [k] get_pageblock_flags_group 0.06% dd [kernel] [k] bio_endio 0.06% perf [kernel] [k] file_remove_suid 0.06% perf [kernel] [k] mark_page_accessed 0.06% perf [kernel] [k] __set_page_dirty 0.06% perf [kernel] [k] cap_inode_need_killpriv 0.06% perf [kernel] [k] format_decode 0.06% dd [kernel] [k] release_pages 0.06% dd [kernel] [k] cfq_cic_lookup 0.06% dd [kernel] [k] mdio_ctrl_hw 0.05% dd [kernel] [k] kref_put 0.05% perf [kernel] [k] ea_release 0.05% dd [kernel] [k] __do_fault 0.05% dd [kernel] [k] blk_recount_segments 0.05% perf [kernel] [k] jfs_dirty_inode 0.05% perf [kernel] [k] xtLookup 0.05% perf [kernel] [k] dbAllocBits 0.05% perf [kernel] [k] mutex_lock 0.05% perf [kernel] [k] __wake_up_bit 0.05% perf [kernel] [k] current_kernel_time 0.04% perf [kernel] [k] current_fs_time 0.04% perf [kernel] [k] copy_page_range 0.04% perf [kernel] [k] strncmp 0.04% dd [kernel] [k] hrtimer_peek_ahead_timers 0.04% perf [kernel] [k] dbAllocNext 0.04% dd [kernel] [k] vm_normal_page 0.04% dd [kernel] [k] get_request_wait 0.04% perf [kernel] [k] get_page_from_freelist 0.04% perf [kernel] [k] __fsnotify_parent 0.04% perf [kernel] [k] strlen 0.04% perf [kernel] [k] _cond_resched 0.04% dd [kernel] [k] __wake_up 0.04% dd [kernel] [k] ondemand_readahead 0.04% dd [kernel] [k] bio_phys_segments 0.04% dd [kernel] [k] bio_fs_destructor 0.04% dd [kernel] [k] cfq_idle_slice_timer 0.03% perf [kernel] [k] security_inode_need_killpriv 0.03% perf [kernel] [k] scsi_request_fn 0.03% dd [kernel] [k] end_bio_bh_io_sync 0.03% perf [kernel] [k] __wake_up 0.03% perf [kernel] [k] timespec_trunc 0.03% perf [kernel] [k] set_page_dirty 0.03% perf [kernel] [k] kmem_cache_alloc 0.03% perf [kernel] [k] extHint 0.03% perf [kernel] [k] cap_file_permission 0.03% dd [kernel] [k] __queue_work 0.03% dd [kernel] [k] down_read_trylock 0.03% dd [kernel] [k] filemap_fault 0.03% dd [kernel] [k] page_cache_async_readahead 0.03% dd [kernel] [k] xtSearch 0.03% dd [kernel] [k] sha_transform 0.03% perf [kernel] [k] down_read 0.03% perf [kernel] [k] do_page_fault 0.03% dd [kernel] [k] unlock_page 0.03% dd [kernel] [k] free_hot_page 0.03% dd [kernel] [k] find_vma 0.03% dd [kernel] [k] generic_unplug_device 0.03% dd [kernel] [k] blk_done_softirq 0.03% dd [kernel] [k] scsi_finish_command 0.03% dd [kernel] [k] scsi_put_command 0.03% perf [kernel] [k] mutex_unlock 0.03% dd [kernel] [k] elv_set_request 0.02% perf [kernel] [k] sysenter_do_call 0.02% perf [kernel] [k] __rcu_read_lock 0.02% perf [kernel] [k] xtExtend 0.02% dd [kernel] [k] test_clear_page_writeback 0.02% dd [kernel] [k] blk_run_queue 0.02% dd [kernel] [k] __scsi_put_command 0.02% dd [kernel] [k] scsi_decide_disposition 0.02% dd [kernel] [k] scsi_run_queue 0.02% perf [kernel] [k] up_read 0.02% perf [kernel] [k] __alloc_pages_nodemask 0.02% perf [kernel] [k] __do_fault 0.02% perf [kernel] [k] jfs_get_block 0.02% perf [kernel] [k] security_file_permission 0.02% perf [kernel] [k] blk_end_bidi_request 0.02% dd [kernel] [k] __wake_up_bit 0.02% dd [kernel] [k] page_add_new_anon_rmap 0.02% perf [kernel] [k] handle_IRQ_event 0.02% perf [kernel] [k] handle_mm_fault 0.02% perf [kernel] [k] kmem_cache_free 0.02% perf [kernel] [k] mnt_clone_write 0.02% perf [kernel] [k] seq_printf 0.02% perf [kernel] [k] spin_unlock 0.02% perf [kernel] [k] txLock 0.02% perf [kernel] [k] strchr 0.02% perf [kernel] [k] ehci_watchdog [ehci_hcd] 0.02% dd [kernel] [k] up_read 0.02% dd [kernel] [k] rcu_process_gp_end 0.02% dd [kernel] [k] mempool_free 0.02% dd [kernel] [k] ra_submit 0.02% dd [kernel] [k] page_remove_rmap 0.02% dd [kernel] [k] anon_vma_prepare 0.02% dd [kernel] [k] __bio_add_page 0.02% dd [kernel] [k] bio_free 0.02% dd [kernel] [k] kobject_put 0.02% dd [kernel] [k] scsi_device_unbusy 0.02% dd [kernel] [k] scsi_io_completion 0.02% dd [kernel] [k] sd_done 0.01% perf [kernel] [k] rcu_sched_qs 0.01% perf [kernel] [k] do_sys_poll 0.01% perf [kernel] [k] free_buffer_head 0.01% perf [kernel] [k] __find_get_block_slow 0.01% perf [kernel] [k] dbSplit 0.01% perf /lib/libc-2.11.so [.] __GI___gettimeofday_internal 0.01% dd [kernel] [k] run_timer_softirq 0.01% dd [kernel] [k] page_evictable 0.01% dd [kernel] [k] free_page_and_swap_cache 0.01% dd [kernel] [k] kmem_cache_alloc_notrace 0.01% dd [kernel] [k] end_buffer_async_write 0.01% dd [kernel] [k] bio_add_page 0.01% dd [kernel] [k] blk_unplug 0.01% dd [kernel] [k] blk_update_bidi_request 0.01% dd [kernel] [k] put_device 0.01% dd [kernel] [k] __scsi_release_buffers 0.01% perf [kernel] [k] __hrtimer_start_range_ns 0.01% perf [kernel] [k] add_to_page_cache_lru 0.01% perf [kernel] [k] ____pagevec_lru_add 0.01% perf [kernel] [k] mnt_drop_write 0.01% perf [kernel] [k] ata_sff_interrupt 0.01% dd [kernel] [k] lru_cache_add_lru 0.01% dd [kernel] [k] mmap_region 0.01% dd [kernel] [k] mpage_readpages 0.01% dd [kernel] [k] __sg_free_table 0.01% dd [kernel] [k] add_timer_randomness 0.01% dd [kernel] [k] scsi_softirq_done 0.01% dd b713846f [.] 0x000000b713846f 0.01% perf [kernel] [k] up_write 0.01% perf [kernel] [k] add_to_page_cache_locked 0.01% perf [kernel] [k] read_cache_page 0.01% perf [kernel] [k] vm_normal_page 0.01% perf [kernel] [k] do_wp_page 0.01% perf [kernel] [k] anon_vma_link 0.01% perf [kernel] [k] prepend 0.01% perf [kernel] [k] d_path 0.01% perf [kernel] [k] mangle_path 0.01% perf [kernel] [k] show_map_vma 0.01% perf [kernel] [k] dbAllocDmap 0.01% perf [kernel] [k] __get_metapage 0.01% dd [kernel] [k] try_to_wake_up 0.01% dd [kernel] [k] __rcu_process_callbacks 0.01% dd [kernel] [k] __lock_page_killable 0.01% dd [kernel] [k] mempool_free_slab 0.01% dd [kernel] [k] shrink_page_list 0.01% dd [kernel] [k] unlink_file_vma 0.01% dd [kernel] [k] page_referenced 0.01% dd [kernel] [k] jfs_get_block 0.01% dd [kernel] [k] dtSearch 0.01% dd [kernel] [k] metapage_readpage 0.01% dd [kernel] [k] cap_file_permission 0.01% dd [kernel] [k] blk_backing_dev_unplug 0.01% dd [kernel] [k] disk_map_sector_rcu 0.01% dd [kernel] [k] kobject_get 0.01% dd [kernel] [k] strnlen_user 0.01% dd [kernel] [k] copy_to_user 0.01% dd [kernel] [k] credit_entropy_bits 0.01% dd [kernel] [k] scsi_log_send 0.01% dd [kernel] [k] scsi_pool_free_command 0.01% dd [kernel] [k] scsi_sg_free 0.01% dd [kernel] [k] preempt_schedule_irq 0.01% perf [kernel] [k] pgd_alloc 0.01% perf [kernel] [k] copy_process 0.01% perf [kernel] [k] __do_softirq 0.01% perf [kernel] [k] ktime_get_ts 0.01% perf [kernel] [k] perf_poll 0.01% perf [kernel] [k] perf_mmap_fault 0.01% perf [kernel] [k] do_read_cache_page 0.01% perf [kernel] [k] read_cache_page_async 0.01% perf [kernel] [k] activate_page 0.01% perf [kernel] [k] vma_prio_tree_add 0.01% perf [kernel] [k] next_zones_zonelist 0.01% perf [kernel] [k] find_vma 0.01% perf [kernel] [k] __d_path 0.01% perf [kernel] [k] alloc_page_buffers 0.01% perf [kernel] [k] bio_endio 0.01% perf [kernel] [k] dbAdjTree 0.01% perf [kernel] [k] txBeginAnon 0.01% perf [kernel] [k] blk_update_request 0.01% perf [kernel] [k] blk_done_softirq 0.01% perf [kernel] [k] cfq_idle_slice_timer 0.01% perf [kernel] [k] radix_tree_preload 0.01% perf [kernel] [k] string 0.01% perf [kernel] [k] preempt_schedule 0.01% perf [kernel] [k] schedule_hrtimeout_range 0.01% perf [kernel] [k] down_write 0.01% perf /lib/libpthread-2.11.so [.] __libc_write 0.01% dd [kernel] [k] sysenter_past_esp 0.01% dd [kernel] [k] queue_work 0.01% dd [kernel] [k] prepare_to_wait_exclusive 0.01% dd [kernel] [k] ktime_get_ts 0.01% dd [kernel] [k] __call_rcu 0.01% dd [kernel] [k] rcu_process_callbacks 0.01% dd [kernel] [k] shrink_inactive_list 0.01% dd [kernel] [k] remove_vma 0.01% dd [kernel] [k] do_sync_read 0.01% dd [kernel] [k] rw_verify_area 0.01% dd [kernel] [k] file_free_rcu 0.01% dd [kernel] [k] __follow_mount 0.01% dd [kernel] [k] do_lookup 0.01% dd [kernel] [k] link_path_walk 0.01% dd [kernel] [k] load_elf_binary 0.01% dd [kernel] [k] prio_tree_next 0.01% dd [kernel] [k] scsi_handle_queue_ramp_up 0.01% dd /lib/ld-2.11.so [.] _dl_setup_hash 0.00% perf [kernel] [k] task_nice 0.00% perf [kernel] [k] wake_up_new_task 0.00% perf [kernel] [k] dup_mm 0.00% perf [kernel] [k] free_uid 0.00% perf [kernel] [k] find_task_by_pid_ns 0.00% perf [kernel] [k] remove_wait_queue 0.00% perf [kernel] [k] __rcu_process_callbacks 0.00% perf [kernel] [k] __lru_cache_add 0.00% perf [kernel] [k] arch_get_unmapped_area_topdown 0.00% perf [kernel] [k] inode_add_bytes 0.00% perf [kernel] [k] path_init 0.00% perf [kernel] [k] do_lookup 0.00% perf [kernel] [k] poll_schedule_timeout 0.00% perf [kernel] [k] __d_free 0.00% perf [kernel] [k] mnt_want_write_file 0.00% perf [kernel] [k] set_bh_page 0.00% perf [kernel] [k] alloc_buffer_head 0.00% perf [kernel] [k] end_buffer_async_read 0.00% perf [kernel] [k] end_buffer_async_write 0.00% perf [kernel] [k] unmap_underlying_metadata 0.00% perf [kernel] [k] m_start 0.00% perf [kernel] [k] proc_pid_status 0.00% perf [kernel] [k] release_metapage 0.00% perf [kernel] [k] req_bio_endio 0.00% perf [kernel] [k] __blk_recalc_rq_segments 0.00% perf [kernel] [k] _atomic_dec_and_lock 0.00% perf [kernel] [k] rb_insert_color 0.00% perf [kernel] [k] put_dec_trunc 0.00% perf [kernel] [k] put_dec 0.00% perf [kernel] [k] strncpy 0.00% perf [kernel] [k] credit_entropy_bits 0.00% perf [kernel] [k] scsi_decide_disposition 0.00% perf [kernel] [k] scsi_softirq_done 0.00% perf /lib/libc-2.11.so [.] _IO_getline_internal 0.00% perf /lib/ld-2.11.so [.] check_match.8476 0.00% perf /lib/ld-2.11.so [.] do_lookup_x 0.00% perf /home/cloos/bin/perf [.] pid_synthesize_mmap_samples 0.00% dd [kernel] [k] destroy_context 0.00% dd [kernel] [k] ___pte_free_tlb 0.00% dd [kernel] [k] set_normalized_timespec 0.00% dd [kernel] [k] prepare_exec_creds 0.00% dd [kernel] [k] do_futex 0.00% dd [kernel] [k] rcu_bh_qs 0.00% dd [kernel] [k] check_for_new_grace_period 0.00% dd [kernel] [k] generic_segment_checks 0.00% dd [kernel] [k] sync_page 0.00% dd [kernel] [k] do_read_cache_page 0.00% dd [kernel] [k] read_cache_page_async 0.00% dd [kernel] [k] wakeup_kswapd 0.00% dd [kernel] [k] vma_prio_tree_remove 0.00% dd [kernel] [k] free_pgd_range 0.00% dd [kernel] [k] follow_page 0.00% dd [kernel] [k] do_wp_page 0.00% dd [kernel] [k] find_mergeable_anon_vma 0.00% dd [kernel] [k] insert_vm_struct 0.00% dd [kernel] [k] vma_adjust 0.00% dd [kernel] [k] do_mmap_pgoff 0.00% dd [kernel] [k] sys_mmap_pgoff 0.00% dd [kernel] [k] page_add_file_rmap 0.00% dd [kernel] [k] kfree 0.00% dd [kernel] [k] __kmalloc 0.00% dd [kernel] [k] do_sys_open 0.00% dd [kernel] [k] vfs_read 0.00% dd [kernel] [k] sys_read 0.00% dd [kernel] [k] fget 0.00% dd [kernel] [k] __fput 0.00% dd [kernel] [k] copy_strings 0.00% dd [kernel] [k] kernel_read 0.00% dd [kernel] [k] check_unsafe_exec 0.00% dd [kernel] [k] getname 0.00% dd [kernel] [k] do_follow_link 0.00% dd [kernel] [k] do_filp_open 0.00% dd [kernel] [k] prepend 0.00% dd [kernel] [k] d_rehash 0.00% dd [kernel] [k] __d_lookup 0.00% dd [kernel] [k] dput 0.00% dd [kernel] [k] alloc_fd 0.00% dd [kernel] [k] mntput_no_expire 0.00% dd [kernel] [k] block_sync_page 0.00% dd [kernel] [k] bd_acquire 0.00% dd [kernel] [k] mpage_end_io_read 0.00% dd [kernel] [k] locks_remove_flock 0.00% dd [kernel] [k] __get_metapage 0.00% dd [kernel] [k] security_inode_permission 0.00% dd [kernel] [k] security_vm_enough_memory 0.00% dd [kernel] [k] blk_end_request 0.00% dd [kernel] [k] prio_tree_replace 0.00% dd [kernel] [k] __rb_rotate_left 0.00% dd [kernel] [k] rb_insert_color 0.00% dd [kernel] [k] strrchr 0.00% dd [kernel] [k] __get_user_4 0.00% dd [kernel] [k] strlen 0.00% dd [kernel] [k] _copy_from_user 0.00% dd [kernel] [k] half_md4_transform 0.00% dd [kernel] [k] ioread8 0.00% dd [kernel] [k] write_null 0.00% dd [kernel] [k] account 0.00% dd [kernel] [k] get_device 0.00% dd [kernel] [k] scsi_next_command 0.00% dd [kernel] [k] e100_exec_cmd 0.00% dd [kernel] [k] acpi_pm_read 0.00% dd [kernel] [k] __wait_on_bit_lock 0.00% dd [kernel] [k] down_read 0.00% dd [kernel] [k] syscall_call 0.00% dd [kernel] [k] error_code 0.00% dd /lib/libc-2.11.so [.] 0x00000000021f5e 0.00% dd /lib/libc-2.11.so [.] _nl_load_locale_from_archive 0.00% dd /lib/libc-2.11.so [.] _IO_vfprintf_internal 0.00% dd /lib/libc-2.11.so [.] buffered_vfprintf 0.00% dd /lib/libc-2.11.so [.] _int_malloc 0.00% dd /lib/libc-2.11.so [.] index 0.00% dd /lib/libc-2.11.so [.] __GI_strstr 0.00% dd /lib/libc-2.11.so [.] __GI___libc_write 0.00% dd /lib/libc-2.11.so [.] __GI___register_atfork 0.00% dd /lib/libc-2.11.so [.] _dl_addr 0.00% dd /lib/ld-2.11.so [.] _dl_relocate_object 0.00% dd /lib/ld-2.11.so [.] call_init 0.00% dd /lib/ld-2.11.so [.] _dl_check_map_versions 0.00% dd /lib/ld-2.11.so [.] _dl_discover_osversion 0.00% dd /lib/ld-2.11.so [.] __mmap 0.00% dd /lib/ld-2.11.so [.] strcmp # # (For a higher level overview, try: perf report --sort comm,dso) # [-- Attachment #3: perf2.report --] [-- Type: text/plain, Size: 31320 bytes --] # Samples: 40938 # # Overhead Command Shared Object Symbol # ........ ....... ....................... ...... # 20.58% dd [kernel] [k] __copy_to_user_ll 15.62% dd [kernel] [k] __make_request 7.73% dd [kernel] [k] get_page_from_freelist 4.41% dd [kernel] [k] block_read_full_page 3.60% dd [kernel] [k] generic_make_request 2.60% dd [kernel] [k] kmem_cache_alloc 2.00% dd [kernel] [k] generic_file_aio_read 1.96% dd [kernel] [k] __alloc_pages_nodemask 1.87% dd [kernel] [k] add_to_page_cache_locked 1.82% dd [kernel] [k] scsi_dispatch_cmd 1.77% dd [kernel] [k] blkdev_get_block 1.71% dd [kernel] [k] __do_page_cache_readahead 1.67% dd [kernel] [k] file_read_actor 1.27% dd [kernel] [k] scsi_request_fn 1.21% dd [kernel] [k] submit_bh 1.01% dd [kernel] [k] put_page 0.99% dd [kernel] [k] find_get_page 0.98% dd [kernel] [k] T.1339 0.95% dd [kernel] [k] zone_watermark_ok 0.92% dd [kernel] [k] bio_alloc_bioset 0.89% dd [kernel] [k] __rcu_read_unlock 0.86% dd [kernel] [k] ____pagevec_lru_add 0.83% dd [kernel] [k] alloc_page_buffers 0.71% dd [kernel] [k] __lru_cache_add 0.68% dd [kernel] [k] blk_queue_bounce 0.64% dd [kernel] [k] next_zones_zonelist 0.63% dd [kernel] [k] submit_bio 0.61% dd [kernel] [k] create_empty_buffers 0.59% dd [kernel] [k] alloc_buffer_head 0.53% dd [kernel] [k] add_to_page_cache_lru 0.52% dd [kernel] [k] mempool_alloc 0.44% dd [kernel] [k] blk_end_bidi_request 0.43% perf [kernel] [k] generic_file_buffered_write 0.43% dd [kernel] [k] bio_init 0.39% dd [kernel] [k] radix_tree_preload 0.38% dd [kernel] [k] __rcu_read_lock 0.36% dd [kernel] [k] schedule 0.35% dd [kernel] [k] radix_tree_lookup 0.34% dd [kernel] [k] get_request 0.32% dd [kernel] [k] bio_put 0.32% perf [kernel] [k] __generic_file_aio_write 0.31% dd [kernel] [k] ata_sff_interrupt 0.29% dd [kernel] [k] radix_tree_lookup_slot 0.28% perf [kernel] [k] T.1339 0.26% perf [kernel] [k] nobh_write_begin 0.25% dd [kernel] [k] handle_mm_fault 0.25% dd [kernel] [k] do_page_fault 0.21% dd [kernel] [k] bio_alloc 0.20% dd [kernel] [k] unmap_vmas 0.20% dd [kernel] [k] mark_page_accessed 0.19% perf [kernel] [k] __copy_from_user_ll_nozero 0.19% dd [kernel] [k] req_bio_endio 0.19% perf [kernel] [k] nobh_write_end 0.19% dd [kernel] [k] mempool_alloc_slab 0.18% perf [kernel] [k] vfs_write 0.18% dd [kernel] [k] _cond_resched 0.17% dd [kernel] [k] end_buffer_async_read 0.17% dd [kernel] [k] blkdev_readpage 0.17% perf [kernel] [k] do_sync_write 0.17% dd [kernel] [k] handle_IRQ_event 0.16% dd [kernel] [k] blk_update_request 0.16% dd [kernel] [k] free_hot_cold_page 0.15% perf [kernel] [k] extAlloc 0.15% dd [kernel] [k] __do_softirq 0.15% perf [kernel] [k] generic_segment_checks 0.14% dd [kernel] [k] set_bh_page 0.14% perf [kernel] [k] find_get_page 0.14% perf [kernel] [k] generic_file_aio_write 0.14% perf [kernel] [k] jfs_write_begin 0.14% perf [kernel] [k] sysenter_past_esp 0.14% perf [kernel] [k] __jfs_getxattr 0.13% perf [kernel] [k] iov_iter_copy_from_user_atomic 0.13% perf [kernel] [k] iov_iter_advance 0.13% perf [kernel] [k] getnstimeofday 0.13% dd [kernel] [k] __wake_up 0.13% dd [kernel] [k] ehci_watchdog [ehci_hcd] 0.12% dd [kernel] [k] __blk_recalc_rq_segments 0.12% perf [kernel] [k] rw_verify_area 0.12% perf [kernel] [k] number 0.11% perf [kernel] [k] xtSearch 0.11% perf [kernel] [k] ea_get 0.11% dd [kernel] [k] cfq_set_request 0.11% perf [kernel] [k] get_page_from_freelist 0.11% perf [kernel] [k] dbAlloc 0.10% perf [kernel] [k] iov_iter_fault_in_readable 0.10% perf [kernel] [k] acpi_pm_read 0.09% perf [kernel] [k] __set_page_dirty 0.09% perf [kernel] [k] balance_dirty_pages_ratelimited_nr 0.09% perf [kernel] [k] sys_write 0.09% perf [kernel] [k] file_update_time 0.09% perf [kernel] [k] __mark_inode_dirty 0.09% dd [kernel] [k] kmem_cache_free 0.08% perf [kernel] [k] vsnprintf 0.08% perf [kernel] [k] __rcu_read_unlock 0.08% dd [kernel] [k] rcu_sched_qs 0.08% dd [kernel] [k] ondemand_readahead 0.08% dd [kernel] [k] find_vma 0.08% dd [kernel] [k] cfq_idle_slice_timer 0.07% perf [kernel] [k] sys_gettimeofday 0.07% perf [kernel] [k] xtLookup 0.07% dd [kernel] [k] __queue_work 0.07% perf [kernel] [k] grab_cache_page_write_begin 0.07% perf [kernel] [k] generic_write_sync 0.07% perf [kernel] [k] copy_to_user 0.07% dd [kernel] [k] kref_put 0.07% dd [kernel] [k] preempt_schedule 0.07% dd [kernel] [k] get_io_context 0.07% dd [kernel] [k] mix_pool_bytes_extract 0.06% dd [kernel] [k] end_bio_bh_io_sync 0.06% perf [kernel] [k] fget_light 0.06% perf [kernel] [k] format_decode 0.06% dd [kernel] [k] page_add_new_anon_rmap 0.06% perf [vdso] [.] 0x000000ffffe424 0.06% dd [kernel] [k] mdio_ctrl_hw 0.06% perf [kernel] [k] fsnotify 0.06% dd [kernel] [k] __wake_up_bit 0.05% perf [kernel] [k] copy_page_range 0.05% perf [kernel] [k] __set_page_dirty_buffers 0.05% perf [kernel] [k] inotify_inode_queue_event 0.05% dd [kernel] [k] get_pageblock_flags_group 0.05% dd [kernel] [k] bio_endio 0.05% dd [kernel] [k] generic_unplug_device 0.05% perf [kernel] [k] unlock_page 0.05% perf [kernel] [k] jfs_getxattr 0.05% dd [kernel] [k] page_cache_async_readahead 0.05% perf [kernel] [k] file_remove_suid 0.05% perf [kernel] [k] inotify_dentry_parent_queue_event 0.05% dd [kernel] [k] __do_fault 0.05% dd [kernel] [k] bio_fs_destructor 0.05% dd [kernel] [k] blk_rq_init 0.05% dd [kernel] [k] blk_recount_segments 0.05% perf [kernel] [k] do_gettimeofday 0.05% perf [kernel] [k] dbAllocBits 0.05% perf [kernel] [k] scsi_dispatch_cmd 0.05% dd [kernel] [k] filemap_fault 0.05% dd [kernel] [k] release_pages 0.04% perf [kernel] [k] __wake_up 0.04% perf [kernel] [k] __fsnotify_parent 0.04% dd [kernel] [k] init_request_from_bio 0.04% perf [kernel] [k] __do_fault 0.04% perf [kernel] [k] dbAllocNext 0.04% perf [kernel] [k] do_page_fault 0.04% dd [kernel] [k] unlock_page 0.04% dd [kernel] [k] scsi_init_cmd_errh 0.04% perf [kernel] [k] __rcu_read_lock 0.04% perf [kernel] [k] add_to_page_cache_locked 0.04% perf [kernel] [k] mark_page_accessed 0.04% perf [kernel] [k] put_page 0.04% perf [kernel] [k] find_lock_page 0.04% perf [kernel] [k] kfree 0.04% perf [kernel] [k] xtExtend 0.04% perf [kernel] [k] radix_tree_lookup_slot 0.04% perf [kernel] [k] schedule 0.04% dd [kernel] [k] blk_rq_bio_prep 0.03% perf [kernel] [k] timespec_trunc 0.03% perf [kernel] [k] __wake_up_bit 0.03% perf [kernel] [k] kmem_cache_alloc 0.03% perf [kernel] [k] jfs_dirty_inode 0.03% perf [kernel] [k] jfs_get_block 0.03% dd [kernel] [k] vm_normal_page 0.03% perf [kernel] [k] should_remove_suid 0.03% perf [kernel] [k] set_page_dirty 0.03% perf [kernel] [k] strncmp 0.03% dd [kernel] [k] hrtimer_peek_ahead_timers 0.03% dd [kernel] [k] page_evictable 0.03% dd [kernel] [k] bio_free 0.03% dd [kernel] [k] sha_transform 0.03% perf [kernel] [k] ea_release 0.03% dd [kernel] [k] ra_submit 0.03% dd [kernel] [k] strnlen_user 0.03% perf [kernel] [k] __get_metapage 0.03% perf [kernel] [k] mutex_unlock 0.03% perf /home/cloos/bin/perf [.] __cmd_record 0.03% dd [kernel] [k] down_read_trylock 0.03% dd [kernel] [k] get_request_wait 0.03% dd [kernel] [k] kobject_put 0.03% dd [kernel] [k] credit_entropy_bits 0.02% perf [kernel] [k] current_fs_time 0.02% perf [kernel] [k] __alloc_pages_nodemask 0.02% perf [kernel] [k] extHint 0.02% perf [kernel] [k] release_metapage 0.02% dd [kernel] [k] free_hot_page 0.02% dd [kernel] [k] bio_phys_segments 0.02% perf [kernel] [k] __do_softirq 0.02% perf [kernel] [k] handle_mm_fault 0.02% perf [kernel] [k] dbAllocDmap 0.02% perf [kernel] [k] cap_inode_need_killpriv 0.02% dd [kernel] [k] up_read 0.02% dd [kernel] [k] anon_vma_prepare 0.02% dd [kernel] [k] elv_set_request 0.02% dd [kernel] [k] blk_unplug 0.02% perf [kernel] [k] sysenter_do_call 0.02% perf [kernel] [k] zone_watermark_ok 0.02% perf [kernel] [k] strlen 0.02% perf [kernel] [k] _cond_resched 0.02% perf [kernel] [k] mutex_lock 0.02% perf [kernel] [k] down_read 0.02% dd [kernel] [k] free_page_and_swap_cache 0.02% dd [kernel] [k] kmem_cache_alloc_notrace 0.02% dd [kernel] [k] cfq_cic_lookup 0.02% dd [kernel] [k] scsi_decide_disposition 0.02% perf [kernel] [k] current_kernel_time 0.02% perf [kernel] [k] mangle_path 0.02% perf [kernel] [k] seq_printf 0.02% perf [kernel] [k] security_inode_need_killpriv 0.02% perf [kernel] [k] blk_end_bidi_request 0.02% dd [kernel] [k] rcu_process_gp_end 0.02% dd [kernel] [k] __rcu_process_callbacks 0.02% dd [kernel] [k] lru_cache_add_lru 0.02% dd [kernel] [k] add_timer_randomness 0.02% dd [kernel] [k] scsi_finish_command 0.02% dd [kernel] [k] scsi_run_queue 0.01% perf [kernel] [k] up_read 0.01% perf [kernel] [k] read_cache_page_async 0.01% perf [kernel] [k] kmem_cache_free 0.01% perf [kernel] [k] mnt_drop_write 0.01% perf [kernel] [k] alloc_buffer_head 0.01% perf [kernel] [k] __find_get_block_slow 0.01% perf [kernel] [k] cap_file_permission 0.01% perf [kernel] [k] ehci_watchdog [ehci_hcd] 0.01% dd [kernel] [k] run_timer_softirq 0.01% dd [kernel] [k] dtSearch 0.01% dd [kernel] [k] put_device 0.01% dd [kernel] [k] scsi_put_command 0.01% dd [kernel] [k] scsi_io_completion 0.01% dd [kernel] [k] sd_done 0.01% perf [kernel] [k] do_read_cache_page 0.01% perf [kernel] [k] read_cache_page 0.01% perf [kernel] [k] __lru_cache_add 0.01% perf [kernel] [k] inode_add_bytes 0.01% perf [kernel] [k] dbSplit 0.01% perf [kernel] [k] txBeginAnon 0.01% perf [kernel] [k] strchr 0.01% perf [kernel] [k] ata_sff_interrupt 0.01% dd [kernel] [k] mempool_free 0.01% dd [kernel] [k] page_remove_rmap 0.01% dd [kernel] [k] __d_lookup 0.01% dd [kernel] [k] blk_update_bidi_request 0.01% dd [kernel] [k] add_disk_randomness 0.01% dd [kernel] [k] scsi_handle_queue_ramp_up 0.01% dd [kernel] [k] serio_interrupt 0.01% dd b770c0c0 [.] 0x000000b770c0c0 0.01% perf [kernel] [k] dup_mm 0.01% perf [kernel] [k] handle_IRQ_event 0.01% perf [kernel] [k] perf_poll 0.01% perf [kernel] [k] perf_mmap_fault 0.01% perf [kernel] [k] ____pagevec_lru_add 0.01% perf [kernel] [k] do_wp_page 0.01% perf [kernel] [k] __d_path 0.01% perf [kernel] [k] free_buffer_head 0.01% perf [kernel] [k] alloc_page_buffers 0.01% perf [kernel] [k] show_map_vma 0.01% perf [kernel] [k] dbAdjTree 0.01% perf [kernel] [k] spin_unlock 0.01% perf [kernel] [k] radix_tree_preload 0.01% dd [kernel] [k] check_for_new_grace_period 0.01% dd [kernel] [k] sys_write 0.01% dd [kernel] [k] copy_strings 0.01% dd [kernel] [k] blk_end_request 0.01% dd [kernel] [k] disk_map_sector_rcu 0.01% dd [kernel] [k] _atomic_dec_and_lock 0.01% dd [kernel] [k] __scsi_release_buffers 0.01% dd [kernel] [k] scsi_device_unbusy 0.01% dd [kernel] [k] system_call 0.01% perf [kernel] [k] __page_cache_alloc 0.01% perf [kernel] [k] add_to_page_cache_lru 0.01% perf [kernel] [k] lock_page 0.01% perf [kernel] [k] find_vma 0.01% perf [kernel] [k] mnt_clone_write 0.01% perf [kernel] [k] end_buffer_async_read 0.01% perf [kernel] [k] blk_update_request 0.01% perf [kernel] [k] put_dec_trunc 0.01% perf [kernel] [k] string 0.01% perf [kernel] [k] schedule_hrtimeout_range 0.01% perf /lib/libc-2.11.so [.] __GI___gettimeofday_internal 0.01% dd [kernel] [k] perf_output_copy 0.01% dd [kernel] [k] test_clear_page_writeback 0.01% dd [kernel] [k] vma_adjust 0.01% dd [kernel] [k] __split_vma 0.01% dd [kernel] [k] path_get 0.01% dd [kernel] [k] link_path_walk 0.01% dd [kernel] [k] do_filp_open 0.01% dd [kernel] [k] dnotify_flush 0.01% dd [kernel] [k] inotify_dentry_parent_queue_event 0.01% dd [kernel] [k] current_io_context 0.01% dd [kernel] [k] prio_tree_insert 0.01% dd [kernel] [k] __sg_free_table 0.01% dd [kernel] [k] scsi_next_command 0.00% perf [kernel] [k] copy_process 0.00% perf [kernel] [k] remove_wait_queue 0.00% perf [kernel] [k] __hrtimer_start_range_ns 0.00% perf [kernel] [k] down_read_trylock 0.00% perf [kernel] [k] rcu_sched_qs 0.00% perf [kernel] [k] __rcu_process_callbacks 0.00% perf [kernel] [k] __set_page_dirty_nobuffers 0.00% perf [kernel] [k] activate_page 0.00% perf [kernel] [k] vm_normal_page 0.00% perf [kernel] [k] anon_vma_link 0.00% perf [kernel] [k] generic_file_llseek_unlocked 0.00% perf [kernel] [k] do_sys_poll 0.00% perf [kernel] [k] prepend 0.00% perf [kernel] [k] d_path 0.00% perf [kernel] [k] mnt_want_write_file 0.00% perf [kernel] [k] seq_read 0.00% perf [kernel] [k] render_sigset_t 0.00% perf [kernel] [k] txLock 0.00% perf [kernel] [k] security_file_permission 0.00% dd [kernel] [k] sysenter_past_esp 0.00% dd [kernel] [k] rcu_process_callbacks 0.00% dd [kernel] [k] perf_output_begin 0.00% dd [kernel] [k] wakeup_kswapd 0.00% dd [kernel] [k] vma_prio_tree_remove 0.00% dd [kernel] [k] free_pgtables 0.00% dd [kernel] [k] do_wp_page 0.00% dd [kernel] [k] __vma_link 0.00% dd [kernel] [k] unlink_file_vma 0.00% dd [kernel] [k] do_mmap_pgoff 0.00% dd [kernel] [k] rw_verify_area 0.00% dd [kernel] [k] blk_backing_dev_unplug 0.00% dd [kernel] [k] blk_run_queue 0.00% dd [kernel] [k] blk_done_softirq 0.00% dd [kernel] [k] rb_insert_color 0.00% dd [kernel] [k] _copy_from_user 0.00% dd [kernel] [k] scsi_log_send 0.00% dd [kernel] [k] scsi_pool_free_command 0.00% dd [kernel] [k] scsi_sg_free 0.00% dd [kernel] [k] i8042_interrupt 0.00% dd /lib/libc-2.11.so [.] _int_malloc 0.00% dd /lib/libc-2.11.so [.] __GI___libc_write 0.00% dd /lib/libc-2.11.so [.] _dl_addr 0.00% dd /lib/ld-2.11.so [.] _dl_setup_hash 0.00% dd /lib/ld-2.11.so [.] _dl_relocate_object 0.00% perf [kernel] [k] task_fork_fair 0.00% perf [kernel] [k] __queue_work 0.00% perf [kernel] [k] hrtimer_peek_ahead_timers 0.00% perf [kernel] [k] up_write 0.00% perf [kernel] [k] rcu_bh_qs 0.00% perf [kernel] [k] check_for_new_grace_period 0.00% perf [kernel] [k] inherit_event 0.00% perf [kernel] [k] end_page_writeback 0.00% perf [kernel] [k] wait_on_page_read 0.00% perf [kernel] [k] filemap_fault 0.00% perf [kernel] [k] vma_prio_tree_add 0.00% perf [kernel] [k] next_zones_zonelist 0.00% perf [kernel] [k] spin_unlock 0.00% perf [kernel] [k] unmap_vmas 0.00% perf [kernel] [k] vm_stat_account 0.00% perf [kernel] [k] vma_adjust 0.00% perf [kernel] [k] anon_vma_prepare 0.00% perf [kernel] [k] do_sys_open 0.00% perf [kernel] [k] sys_read 0.00% perf [kernel] [k] fget 0.00% perf [kernel] [k] __fput 0.00% perf [kernel] [k] poll_schedule_timeout 0.00% perf [kernel] [k] poll_freewait 0.00% perf [kernel] [k] __d_lookup 0.00% perf [kernel] [k] alloc_fd 0.00% perf [kernel] [k] mntput_no_expire 0.00% perf [kernel] [k] seq_puts 0.00% perf [kernel] [k] seq_path 0.00% perf [kernel] [k] set_bh_page 0.00% perf [kernel] [k] end_buffer_async_write 0.00% perf [kernel] [k] bio_endio 0.00% perf [kernel] [k] m_stop 0.00% perf [kernel] [k] xtInsert 0.00% perf [kernel] [k] security_vm_enough_memory_mm 0.00% perf [kernel] [k] cap_task_to_inode 0.00% perf [kernel] [k] cfq_idle_slice_timer 0.00% perf [kernel] [k] _atomic_dec_and_lock 0.00% perf [kernel] [k] kobject_put 0.00% perf [kernel] [k] put_dec 0.00% perf [kernel] [k] __sg_free_table 0.00% perf [kernel] [k] credit_entropy_bits 0.00% perf [kernel] [k] scsi_pool_free_command 0.00% perf [kernel] [k] serio_interrupt 0.00% perf [kernel] [k] down_write 0.00% perf [kernel] [k] error_code 0.00% perf /lib/libc-2.11.so [.] __GI_strtol 0.00% perf /lib/libc-2.11.so [.] _IO_file_doallocate_internal 0.00% perf /lib/libc-2.11.so [.] __fopen_internal 0.00% perf /lib/libc-2.11.so [.] _IO_getline_info 0.00% perf /home/cloos/bin/perf [.] pid_synthesize_mmap_samples 0.00% dd [kernel] [k] init_fpu 0.00% dd [kernel] [k] sched_move_task 0.00% dd [kernel] [k] try_to_wake_up 0.00% dd [kernel] [k] unshare_files 0.00% dd [kernel] [k] do_exit 0.00% dd [kernel] [k] current_fs_time 0.00% dd [kernel] [k] lock_timer_base 0.00% dd [kernel] [k] sys_rt_sigaction 0.00% dd [kernel] [k] drop_futex_key_refs 0.00% dd [kernel] [k] module_put 0.00% dd [kernel] [k] rcu_bh_qs 0.00% dd [kernel] [k] __call_rcu 0.00% dd [kernel] [k] perf_event_comm 0.00% dd [kernel] [k] __lock_page 0.00% dd [kernel] [k] free_pgd_range 0.00% dd [kernel] [k] spin_unlock 0.00% dd [kernel] [k] __pte_alloc 0.00% dd [kernel] [k] __get_user_pages 0.00% dd [kernel] [k] vma_wants_writenotify 0.00% dd [kernel] [k] __vma_link_file 0.00% dd [kernel] [k] __vma_link_rb 0.00% dd [kernel] [k] __vm_enough_memory 0.00% dd [kernel] [k] mmap_region 0.00% dd [kernel] [k] anon_vma_unlink 0.00% dd [kernel] [k] kfree 0.00% dd [kernel] [k] vfs_write 0.00% dd [kernel] [k] sys_llseek 0.00% dd [kernel] [k] sys_read 0.00% dd [kernel] [k] fget_light 0.00% dd [kernel] [k] file_kill 0.00% dd [kernel] [k] fput 0.00% dd [kernel] [k] cp_new_stat64 0.00% dd [kernel] [k] copy_strings_kernel 0.00% dd [kernel] [k] set_task_comm 0.00% dd [kernel] [k] setup_new_exec 0.00% dd [kernel] [k] open_exec 0.00% dd [kernel] [k] acl_permission_check 0.00% dd [kernel] [k] path_init 0.00% dd [kernel] [k] __follow_mount 0.00% dd [kernel] [k] path_put 0.00% dd [kernel] [k] __d_free 0.00% dd [kernel] [k] d_alloc 0.00% dd [kernel] [k] dput 0.00% dd [kernel] [k] touch_atime 0.00% dd [kernel] [k] mntput_no_expire 0.00% dd [kernel] [k] fsnotify 0.00% dd [kernel] [k] __fsnotify_parent 0.00% dd [kernel] [k] inotify_inode_queue_event 0.00% dd [kernel] [k] load_elf_binary 0.00% dd [kernel] [k] removed_exe_file_vma 0.00% dd [kernel] [k] jfs_lookup 0.00% dd [kernel] [k] __get_metapage 0.00% dd [kernel] [k] is_file_shm_hugepages 0.00% dd [kernel] [k] cap_vm_enough_memory 0.00% dd [kernel] [k] security_prepare_creds 0.00% dd [kernel] [k] cap_inode_permission 0.00% dd [kernel] [k] cap_file_free_security 0.00% dd [kernel] [k] kobject_get 0.00% dd [kernel] [k] kref_get 0.00% dd [kernel] [k] prio_tree_replace 0.00% dd [kernel] [k] __rb_rotate_left 0.00% dd [kernel] [k] clear_user 0.00% dd [kernel] [k] strncpy_from_user 0.00% dd [kernel] [k] half_md4_transform 0.00% dd [kernel] [k] tty_write 0.00% dd [kernel] [k] n_tty_write 0.00% dd [kernel] [k] tty_buffer_request_room 0.00% dd [kernel] [k] scsi_log_completion 0.00% dd [kernel] [k] __scsi_put_command 0.00% dd [kernel] [k] scsi_softirq_done 0.00% dd [kernel] [k] e100_watchdog 0.00% dd [kernel] [k] mutex_lock 0.00% dd [kernel] [k] error_code 0.00% dd /lib/libpthread-2.11.so [.] __pthread_mutex_lock_internal 0.00% dd /lib/libc-2.11.so [.] __GI_setlocale 0.00% dd /lib/libc-2.11.so [.] __GI_bsearch 0.00% dd /lib/libc-2.11.so [.] 0x000000000a1877 0.00% dd /lib/libc-2.11.so [.] __GI___fxstat64 0.00% dd /lib/libc-2.11.so [.] __libc_pthread_init 0.00% dd /lib/ld-2.11.so [.] _dl_start 0.00% dd /lib/ld-2.11.so [.] open_verify 0.00% dd /lib/ld-2.11.so [.] _dl_map_object_from_fd 0.00% dd /lib/ld-2.11.so [.] do_lookup_x 0.00% dd /lib/ld-2.11.so [.] _dl_lookup_symbol_x 0.00% dd /lib/ld-2.11.so [.] _dl_new_object 0.00% dd /lib/ld-2.11.so [.] call_init 0.00% dd /lib/ld-2.11.so [.] access 0.00% dd /bin/dd [.] dd_copy 0.00% dd /bin/dd [.] human_readable 0.00% dd /bin/dd [.] 0x0000000000854d # # (For a higher level overview, try: perf report --sort comm,dso) # [-- Attachment #4: perf3.report --] [-- Type: text/plain, Size: 36989 bytes --] # Samples: 144548 # # Overhead Command Shared Object Symbol # ........ ....... ....................... ...... # 19.08% dd [kernel] [k] __make_request 4.56% dd [kernel] [k] __copy_to_user_ll 3.96% perf [kernel] [k] generic_file_buffered_write 3.87% dd [kernel] [k] generic_make_request 2.84% perf [kernel] [k] __generic_file_aio_write 2.74% dd [kernel] [k] kmem_cache_alloc 2.53% dd [kernel] [k] block_read_full_page 1.94% dd [kernel] [k] blkdev_get_block 1.64% dd [kernel] [k] get_page_from_freelist 1.50% dd [kernel] [k] kmem_cache_free 1.44% perf [kernel] [k] vfs_write 1.33% perf [kernel] [k] generic_file_aio_write 1.33% perf [kernel] [k] iov_iter_advance 1.33% perf [kernel] [k] do_sync_write 1.29% perf [kernel] [k] nobh_write_end 1.29% perf [kernel] [k] sysenter_past_esp 1.25% dd [kernel] [k] submit_bh 1.23% perf [kernel] [k] nobh_write_begin 1.21% perf [kernel] [k] __jfs_getxattr 1.18% perf [kernel] [k] iov_iter_copy_from_user_atomic 1.05% dd [kernel] [k] bio_alloc_bioset 1.04% perf [kernel] [k] getnstimeofday 1.01% perf [kernel] [k] find_get_page 0.97% perf [kernel] [k] rw_verify_area 0.95% perf [kernel] [k] sys_write 0.93% perf [kernel] [k] generic_segment_checks 0.84% dd [kernel] [k] submit_bio 0.82% perf [kernel] [k] jfs_write_begin 0.80% perf [kernel] [k] ea_get 0.75% dd [kernel] [k] T.1339 0.72% dd [kernel] [k] blk_queue_bounce 0.71% perf [kernel] [k] copy_to_user 0.69% perf [kernel] [k] balance_dirty_pages_ratelimited_nr 0.68% perf [kernel] [k] iov_iter_fault_in_readable 0.68% dd [kernel] [k] alloc_buffer_head 0.61% perf [kernel] [k] sys_gettimeofday 0.59% dd [kernel] [k] free_hot_cold_page 0.59% perf [vdso] [.] 0x000000ffffe424 0.55% perf [kernel] [k] acpi_pm_read 0.55% perf [kernel] [k] generic_write_sync 0.53% dd [kernel] [k] mempool_alloc 0.52% dd [kernel] [k] add_to_page_cache_locked 0.51% perf [kernel] [k] file_update_time 0.50% perf [kernel] [k] __mark_inode_dirty 0.49% perf [kernel] [k] grab_cache_page_write_begin 0.48% dd [kernel] [k] alloc_page_buffers 0.48% perf [kernel] [k] fget_light 0.48% dd [kernel] [k] bio_init 0.48% perf [kernel] [k] __set_page_dirty_buffers 0.46% dd [kernel] [k] generic_file_aio_read 0.45% dd [kernel] [k] remove_from_page_cache 0.44% perf [kernel] [k] file_remove_suid 0.41% perf [kernel] [k] inotify_inode_queue_event 0.41% dd [kernel] [k] put_page 0.41% perf [kernel] [k] kfree 0.41% perf [kernel] [k] fsnotify 0.40% dd [kernel] [k] free_buffer_head 0.39% dd [kernel] [k] file_read_actor 0.39% perf [kernel] [k] put_page 0.38% perf [kernel] [k] do_gettimeofday 0.37% dd [kernel] [k] __do_page_cache_readahead 0.37% perf [kernel] [k] __copy_from_user_ll_nozero 0.37% perf [kernel] [k] T.1339 0.36% perf [kernel] [k] jfs_getxattr 0.35% dd [kernel] [k] __alloc_pages_nodemask 0.35% perf [kernel] [k] __rcu_read_unlock 0.35% dd [kernel] [k] block_invalidatepage 0.34% perf [kernel] [k] find_lock_page 0.32% perf [kernel] [k] inotify_dentry_parent_queue_event 0.32% dd [kernel] [k] try_to_free_buffers 0.31% perf [kernel] [k] ea_release 0.31% dd [kernel] [k] wake_up_bit 0.30% perf [kernel] [k] __fsnotify_parent 0.29% perf [kernel] [k] cap_inode_need_killpriv 0.27% perf [kernel] [k] radix_tree_lookup_slot 0.27% perf [kernel] [k] timespec_trunc 0.27% perf [kernel] [k] strncmp 0.26% perf [kernel] [k] unlock_page 0.26% perf [kernel] [k] should_remove_suid 0.25% dd [kernel] [k] bio_put 0.24% perf [kernel] [k] current_fs_time 0.23% dd [kernel] [k] __wake_up_bit 0.23% dd [kernel] [k] bio_alloc 0.23% dd [kernel] [k] get_pageblock_flags_group 0.23% dd [kernel] [k] ____pagevec_lru_add 0.23% perf [kernel] [k] current_kernel_time 0.23% dd [kernel] [k] find_get_page 0.22% perf [kernel] [k] strlen 0.21% perf [kernel] [k] mark_page_accessed 0.20% dd [kernel] [k] __rcu_read_unlock 0.20% perf [kernel] [k] jfs_dirty_inode 0.19% dd [kernel] [k] zone_watermark_ok 0.19% dd [kernel] [k] get_request 0.18% dd [kernel] [k] mempool_alloc_slab 0.18% dd [kernel] [k] __lru_cache_add 0.18% dd [kernel] [k] create_empty_buffers 0.17% perf /home/cloos/bin/perf [.] __cmd_record 0.17% dd [kernel] [k] set_bh_page 0.17% perf [kernel] [k] __wake_up_bit 0.17% dd [kernel] [k] drop_buffers 0.16% perf [kernel] [k] _cond_resched 0.16% dd [kernel] [k] release_pages 0.16% perf [kernel] [k] mutex_lock 0.16% perf [kernel] [k] __rcu_read_lock 0.16% perf [kernel] [k] cap_file_permission 0.16% dd [kernel] [k] find_get_pages 0.16% dd [kernel] [k] init_buffer_head 0.15% perf [kernel] [k] set_page_dirty 0.15% dd [kernel] [k] add_to_page_cache_lru 0.15% dd [kernel] [k] setup_object 0.15% dd [kernel] [k] scsi_dispatch_cmd 0.15% dd [kernel] [k] unlock_buffer 0.14% perf [kernel] [k] down_read 0.14% dd [kernel] [k] next_zones_zonelist 0.13% dd [kernel] [k] __slab_alloc 0.13% perf [kernel] [k] up_read 0.12% dd [kernel] [k] cancel_dirty_page 0.12% perf [kernel] [k] sysenter_do_call 0.11% dd [kernel] [k] truncate_inode_page 0.11% perf [kernel] [k] extAlloc 0.11% dd [kernel] [k] schedule 0.11% perf [kernel] [k] mutex_unlock 0.11% perf [kernel] [k] dbAlloc 0.11% perf [kernel] [k] security_file_permission 0.11% dd [kernel] [k] __pagevec_free 0.10% perf [kernel] [k] security_inode_need_killpriv 0.09% dd [kernel] [k] ehci_watchdog [ehci_hcd] 0.09% dd [kernel] [k] rcu_sched_qs 0.09% dd [kernel] [k] truncate_inode_pages_range 0.08% perf [kernel] [k] xtSearch 0.08% dd [kernel] [k] radix_tree_preload 0.08% perf [kernel] [k] usb_hcd_irq [usbcore] 0.08% dd [kernel] [k] radix_tree_lookup 0.07% dd [kernel] [k] radix_tree_lookup_slot 0.07% dd [kernel] [k] __rcu_read_lock 0.07% dd [kernel] [k] handle_IRQ_event 0.07% dd [kernel] [k] usb_hcd_irq [usbcore] 0.07% dd [kernel] [k] blkdev_releasepage 0.07% dd [kernel] [k] preempt_schedule 0.07% perf [kernel] [k] schedule 0.07% dd [kernel] [k] _cond_resched 0.07% dd [kernel] [k] __lookup 0.07% perf [kernel] [k] __set_page_dirty 0.07% dd [kernel] [k] try_to_release_page 0.06% perf [kernel] [k] mnt_want_write_file 0.06% dd [kernel] [k] unlock_page 0.06% perf [kernel] [k] get_page_from_freelist 0.06% dd [kernel] [k] do_invalidatepage 0.06% dd [kernel] [k] blk_end_bidi_request 0.05% perf [kernel] [k] mnt_clone_write 0.05% dd [kernel] [k] __blk_recalc_rq_segments 0.05% dd [kernel] [k] handle_mm_fault 0.05% perf [kernel] [k] mnt_drop_write 0.05% dd [kernel] [k] ata_sff_interrupt 0.05% dd [kernel] [k] do_page_fault 0.05% dd [kernel] [k] unmap_vmas 0.04% perf [kernel] [k] ehci_watchdog [ehci_hcd] 0.04% perf [kernel] [k] xtLookup 0.04% dd [kernel] [k] mark_page_accessed 0.04% dd [kernel] [k] ktime_get_ts 0.04% dd [kernel] [k] scsi_request_fn 0.04% dd [kernel] [k] __do_softirq 0.04% dd [kernel] [k] blkdev_readpage 0.04% perf [kernel] [k] dbAllocNext 0.03% perf /lib/libc-2.11.so [.] __GI___gettimeofday_internal 0.03% perf [kernel] [k] __wake_up 0.03% perf [kernel] [k] jfs_get_block 0.03% perf [kernel] [k] dbAllocBits 0.03% perf [kernel] [k] xtExtend 0.03% dd [kernel] [k] mdio_ctrl_hw 0.03% dd [kernel] [k] blk_rq_init 0.03% perf [kernel] [k] scsi_dispatch_cmd 0.03% dd [kernel] [k] cfq_set_request 0.03% perf [kernel] [k] __get_metapage 0.03% dd [kernel] [k] __wait_on_bit_lock 0.03% dd [kernel] [k] __wake_up 0.03% dd [kernel] [k] sha_transform 0.02% perf [kernel] [k] number 0.02% perf [kernel] [k] handle_IRQ_event 0.02% perf [kernel] [k] add_to_page_cache_locked 0.02% perf [kernel] [k] mdio_ctrl_hw 0.02% perf [kernel] [k] extHint 0.02% dd [kernel] [k] prepare_to_wait_exclusive 0.02% dd [kernel] [k] delayacct_end 0.02% dd [kernel] [k] set_normalized_timespec 0.02% perf [kernel] [k] vsnprintf 0.02% dd [kernel] [k] yenta_interrupt 0.02% perf [kernel] [k] __find_get_block_slow 0.02% dd [kernel] [k] __lock_page_killable 0.02% dd [kernel] [k] acpi_pm_read 0.02% perf [kernel] [k] dbAllocDmap 0.02% perf [kernel] [k] __do_softirq 0.02% perf [kernel] [k] kmem_cache_alloc 0.02% perf [kernel] [k] format_decode 0.02% dd [kernel] [k] get_io_context 0.02% dd [kernel] [k] serio_interrupt 0.01% perf [kernel] [k] hrtimer_try_to_cancel 0.01% perf [kernel] [k] txLock 0.01% dd [kernel] [k] __do_fault 0.01% dd [kernel] [k] blk_rq_bio_prep 0.01% perf [kernel] [k] __hrtimer_start_range_ns 0.01% perf [kernel] [k] do_sys_poll 0.01% dd [kernel] [k] filemap_fault 0.01% perf /lib/libpthread-2.11.so [.] __write_nocancel 0.01% dd [kernel] [k] find_vma 0.01% dd [kernel] [k] blk_update_request 0.01% dd [kernel] [k] mix_pool_bytes_extract 0.01% perf [kernel] [k] __alloc_pages_nodemask 0.01% perf /lib/libpthread-2.11.so [.] __libc_write 0.01% dd [kernel] [k] cfq_cic_lookup 0.01% dd [kernel] [k] radix_tree_gang_lookup_slot 0.01% perf [kernel] [k] dbSplit 0.01% perf [kernel] [k] txBeginAnon 0.01% perf [kernel] [k] release_metapage 0.01% dd [kernel] [k] lru_add_drain 0.01% perf [kernel] [k] activate_page 0.01% perf [kernel] [k] copy_page_range 0.01% perf [kernel] [k] scsi_request_fn 0.01% dd [kernel] [k] anon_vma_prepare 0.01% perf [kernel] [k] kmem_cache_free 0.01% perf [kernel] [k] inode_add_bytes 0.01% dd [kernel] [k] vm_normal_page 0.01% dd [kernel] [k] init_request_from_bio 0.01% dd [kernel] [k] get_request_wait 0.01% perf [kernel] [k] dbAdjTree 0.01% perf [kernel] [k] yenta_interrupt 0.01% dd [kernel] [k] hrtimer_peek_ahead_timers 0.01% dd [kernel] [k] io_schedule 0.01% perf [kernel] [k] rcu_sched_qs 0.01% perf [kernel] [k] do_read_cache_page 0.01% perf [kernel] [k] zone_watermark_ok 0.01% perf [kernel] [k] alloc_buffer_head 0.01% perf [kernel] [k] do_page_fault 0.01% dd [kernel] [k] down_read_trylock 0.01% dd [kernel] [k] __delayacct_blkio_end 0.01% dd [kernel] [k] page_cache_async_readahead 0.01% dd [kernel] [k] blk_unplug 0.01% perf [kernel] [k] add_to_page_cache_lru 0.01% perf [kernel] [k] __do_fault 0.01% perf [kernel] [k] blk_end_bidi_request 0.01% dd [kernel] [k] finish_wait 0.01% dd [kernel] [k] __pagevec_release 0.01% dd [kernel] [k] req_bio_endio 0.01% perf [kernel] [k] __lru_cache_add 0.01% perf [kernel] [k] free_buffer_head 0.01% perf [kernel] [k] alloc_page_buffers 0.01% perf [kernel] [k] unmap_underlying_metadata 0.01% perf [kernel] [k] ata_sff_interrupt 0.01% dd [kernel] [k] up_read 0.01% dd [kernel] [k] sync_page 0.01% dd [kernel] [k] ondemand_readahead 0.01% dd [kernel] [k] block_sync_page 0.01% dd [kernel] [k] elv_set_request 0.01% dd [kernel] [k] blk_backing_dev_unplug 0.01% perf [kernel] [k] read_cache_page_async 0.01% perf [kernel] [k] ____pagevec_lru_add 0.01% perf [kernel] [k] next_zones_zonelist 0.01% perf [kernel] [k] radix_tree_preload 0.01% perf [kernel] [k] schedule_hrtimeout_range 0.01% dd [kernel] [k] free_hot_page 0.01% dd [kernel] [k] pagevec_lookup 0.01% dd [kernel] [k] page_add_new_anon_rmap 0.01% dd [kernel] [k] ioread8 0.01% dd [kernel] [k] scsi_finish_command 0.01% dd [kernel] [k] irq_handler 0.00% perf [kernel] [k] ktime_add_safe 0.00% perf [kernel] [k] irq_handler 0.00% dd [kernel] [k] page_remove_rmap 0.00% dd [kernel] [k] mpage_end_io_read 0.00% dd [kernel] [k] blk_recount_segments 0.00% dd [kernel] [k] cfq_idle_slice_timer 0.00% perf [kernel] [k] ktime_get_ts 0.00% perf [kernel] [k] do_wp_page 0.00% perf [kernel] [k] mangle_path 0.00% perf [kernel] [k] strchr 0.00% perf /home/cloos/bin/perf [.] 0x000000000023ec 0.00% dd [kernel] [k] __delayacct_blkio_start 0.00% dd [kernel] [k] ra_submit 0.00% dd [kernel] [k] free_page_and_swap_cache 0.00% perf [kernel] [k] read_cache_page 0.00% perf [kernel] [k] get_dirty_limits 0.00% perf [kernel] [k] estimate_accuracy 0.00% perf [kernel] [k] seq_printf 0.00% perf [kernel] [k] blk_update_request 0.00% perf [kernel] [k] preempt_schedule_irq 0.00% dd [kernel] [k] sync_page_killable 0.00% dd [kernel] [k] page_evictable 0.00% dd [kernel] [k] copy_strings 0.00% dd [kernel] [k] bio_phys_segments 0.00% dd [kernel] [k] generic_unplug_device 0.00% dd [kernel] [k] current_io_context 0.00% dd [kernel] [k] _copy_from_user 0.00% dd [kernel] [k] scsi_sg_free 0.00% dd [kernel] [k] sd_done 0.00% perf [kernel] [k] set_normalized_timespec 0.00% perf [kernel] [k] __set_page_dirty_nobuffers 0.00% perf [kernel] [k] poll_select_set_timeout 0.00% perf [kernel] [k] __pollwait 0.00% dd [kernel] [k] test_clear_page_writeback 0.00% dd [kernel] [k] link_path_walk 0.00% dd [kernel] [k] blk_update_bidi_request 0.00% dd [kernel] [k] _atomic_dec_and_lock 0.00% dd [kernel] [k] kref_get 0.00% dd [kernel] [k] scsi_pool_free_command 0.00% dd [kernel] [k] scsi_run_queue 0.00% dd [kernel] [k] scsi_io_completion 0.00% dd [kernel] [k] i8042_interrupt 0.00% dd [kernel] [k] __alloc_skb 0.00% dd [kernel] [k] tcp_transmit_skb 0.00% perf [kernel] [k] remove_wait_queue 0.00% perf [kernel] [k] add_wait_queue 0.00% perf [kernel] [k] hrtimer_start_range_ns 0.00% perf [kernel] [k] wait_on_page_read 0.00% perf [kernel] [k] find_vma 0.00% perf [kernel] [k] poll_freewait 0.00% perf [kernel] [k] sys_poll 0.00% perf [kernel] [k] prepend 0.00% perf [kernel] [k] mpage_end_io_read 0.00% perf [kernel] [k] spin_unlock 0.00% perf [kernel] [k] _atomic_dec_and_lock 0.00% perf [kernel] [k] put_dec 0.00% dd [kernel] [k] __wake_up_sync_key 0.00% dd [kernel] [k] __rcu_process_callbacks 0.00% dd [kernel] [k] lru_cache_add_lru 0.00% dd [kernel] [k] do_wp_page 0.00% dd [kernel] [k] kmem_cache_alloc_notrace 0.00% dd [kernel] [k] __d_lookup 0.00% dd [kernel] [k] bio_endio 0.00% dd [kernel] [k] disk_map_sector_rcu 0.00% dd [kernel] [k] strnlen_user 0.00% dd [kernel] [k] credit_entropy_bits 0.00% dd [kernel] [k] scsi_decide_disposition 0.00% dd [kernel] [k] scsi_init_cmd_errh 0.00% dd [kernel] [k] scsi_softirq_done 0.00% dd [kernel] [k] ip_queue_xmit 0.00% dd [kernel] [k] __release_kernel_lock 0.00% perf [kernel] [k] dup_mm 0.00% perf [kernel] [k] hrtimer_init 0.00% perf [kernel] [k] hrtimer_peek_ahead_timers 0.00% perf [kernel] [k] __rcu_process_callbacks 0.00% perf [kernel] [k] perf_mmap_fault 0.00% perf [kernel] [k] filemap_fault 0.00% perf [kernel] [k] vm_normal_page 0.00% perf [kernel] [k] handle_mm_fault 0.00% perf [kernel] [k] mmap_region 0.00% perf [kernel] [k] __slab_alloc 0.00% perf [kernel] [k] __d_path 0.00% perf [kernel] [k] seq_read 0.00% perf [kernel] [k] set_bh_page 0.00% perf [kernel] [k] end_bio_bh_io_sync 0.00% perf [kernel] [k] bio_endio 0.00% perf [kernel] [k] bio_fs_destructor 0.00% perf [kernel] [k] show_map_vma 0.00% perf [kernel] [k] req_bio_endio 0.00% perf [kernel] [k] ioread8 0.00% perf [kernel] [k] scsi_init_cmd_errh 0.00% perf [kernel] [k] preempt_schedule 0.00% perf /lib/libc-2.11.so [.] __libc_poll 0.00% perf /lib/ld-2.11.so [.] _dl_name_match_p 0.00% dd [kernel] [k] __cond_resched 0.00% dd [kernel] [k] prepare_creds 0.00% dd [kernel] [k] perf_output_copy 0.00% dd [kernel] [k] unmap_region 0.00% dd [kernel] [k] mmap_region 0.00% dd [kernel] [k] do_mmap_pgoff 0.00% dd [kernel] [k] sys_mmap_pgoff 0.00% dd [kernel] [k] page_add_file_rmap 0.00% dd [kernel] [k] anon_vma_unlink 0.00% dd [kernel] [k] vfs_read 0.00% dd [kernel] [k] mntput_no_expire 0.00% dd [kernel] [k] bio_fs_destructor 0.00% dd [kernel] [k] load_elf_binary 0.00% dd [kernel] [k] blk_run_queue 0.00% dd [kernel] [k] __scsi_put_command 0.00% dd [kernel] [k] scsi_handle_queue_ramp_up 0.00% dd [kernel] [k] __scsi_release_buffers 0.00% dd [kernel] [k] scsi_device_unbusy 0.00% dd [kernel] [k] e100_enable_irq 0.00% dd [kernel] [k] __kfree_skb 0.00% dd [kernel] [k] ip_route_input 0.00% dd [kernel] [k] ip_local_deliver 0.00% dd [kernel] [k] __inet_lookup_established 0.00% dd [kernel] [k] tcp_v4_rcv 0.00% dd [kernel] [k] preempt_schedule_irq 0.00% dd [kernel] [k] system_call 0.00% dd [kernel] [k] error_code 0.00% dd /lib/libc-2.11.so [.] 0x00000000021f6c 0.00% dd /lib/libc-2.11.so [.] _dl_addr 0.00% dd /lib/ld-2.11.so [.] _dl_lookup_symbol_x 0.00% dd /lib/ld-2.11.so [.] _dl_relocate_object 0.00% perf [kernel] [k] __wake_up_sync_key 0.00% perf [kernel] [k] copy_process 0.00% perf [kernel] [k] run_timer_softirq 0.00% perf [kernel] [k] rcu_bh_qs 0.00% perf [kernel] [k] call_rcu 0.00% perf [kernel] [k] perf_poll 0.00% perf [kernel] [k] perf_event_init_task 0.00% perf [kernel] [k] mempool_free 0.00% perf [kernel] [k] determine_dirtyable_memory 0.00% perf [kernel] [k] release_pages 0.00% perf [kernel] [k] lru_cache_add_lru 0.00% perf [kernel] [k] lock_page 0.00% perf [kernel] [k] expand_downwards 0.00% perf [kernel] [k] __vm_enough_memory 0.00% perf [kernel] [k] vma_adjust 0.00% perf [kernel] [k] page_add_new_anon_rmap 0.00% perf [kernel] [k] anon_vma_link 0.00% perf [kernel] [k] setup_object 0.00% perf [kernel] [k] __kmalloc_track_caller 0.00% perf [kernel] [k] vfs_read 0.00% perf [kernel] [k] may_open 0.00% perf [kernel] [k] link_path_walk 0.00% perf [kernel] [k] poll_schedule_timeout 0.00% perf [kernel] [k] free_poll_entry 0.00% perf [kernel] [k] __d_lookup 0.00% perf [kernel] [k] dput 0.00% perf [kernel] [k] dup_fd 0.00% perf [kernel] [k] expand_files 0.00% perf [kernel] [k] end_buffer_async_read 0.00% perf [kernel] [k] end_buffer_async_write 0.00% perf [kernel] [k] m_start 0.00% perf [kernel] [k] render_sigset_t 0.00% perf [kernel] [k] proc_pid_status 0.00% perf [kernel] [k] cap_vm_enough_memory 0.00% perf [kernel] [k] cap_task_to_inode 0.00% perf [kernel] [k] blk_update_bidi_request 0.00% perf [kernel] [k] cfq_idle_slice_timer 0.00% perf [kernel] [k] kref_put 0.00% perf [kernel] [k] prop_get_global 0.00% perf [kernel] [k] prop_norm_single 0.00% perf [kernel] [k] __rb_rotate_left 0.00% perf [kernel] [k] string 0.00% perf [kernel] [k] credit_entropy_bits 0.00% perf [kernel] [k] get_device 0.00% perf [kernel] [k] scsi_finish_command 0.00% perf [kernel] [k] scsi_decide_disposition 0.00% perf [kernel] [k] scsi_run_queue 0.00% perf [kernel] [k] e100_exec_cmd 0.00% perf [kernel] [k] e100_disable_irq 0.00% perf [kernel] [k] e100_intr 0.00% perf [kernel] [k] __alloc_skb 0.00% perf [kernel] [k] rt6_fill_node 0.00% perf /lib/libc-2.11.so [.] _IO_getline_info 0.00% perf /lib/libc-2.11.so [.] _IO_file_fopen_internal 0.00% perf /lib/libc-2.11.so [.] _IO_link_in_internal 0.00% perf /lib/libc-2.11.so [.] _int_free 0.00% perf /home/cloos/bin/perf [.] exit@plt 0.00% perf /home/cloos/bin/perf [.] pid_synthesize_mmap_samples 0.00% dd [kernel] [k] pgd_alloc 0.00% dd [kernel] [k] test_ti_thread_flag 0.00% dd [kernel] [k] try_to_wake_up 0.00% dd [kernel] [k] mm_alloc 0.00% dd [kernel] [k] current_fs_time 0.00% dd [kernel] [k] run_timer_softirq 0.00% dd [kernel] [k] free_uid 0.00% dd [kernel] [k] __queue_work 0.00% dd [kernel] [k] do_futex 0.00% dd [kernel] [k] rcu_process_gp_end 0.00% dd [kernel] [k] check_for_new_grace_period 0.00% dd [kernel] [k] rcu_start_gp 0.00% dd [kernel] [k] __call_rcu 0.00% dd [kernel] [k] rcu_process_callbacks 0.00% dd [kernel] [k] perf_event_pid 0.00% dd [kernel] [k] perf_output_begin 0.00% dd [kernel] [k] perf_event_comm 0.00% dd [kernel] [k] find_get_pages_tag 0.00% dd [kernel] [k] wakeup_kswapd 0.00% dd [kernel] [k] follow_page 0.00% dd [kernel] [k] find_mergeable_anon_vma 0.00% dd [kernel] [k] remove_vma 0.00% dd [kernel] [k] expand_downwards 0.00% dd [kernel] [k] __remove_shared_vm_struct 0.00% dd [kernel] [k] unlink_file_vma 0.00% dd [kernel] [k] vma_link 0.00% dd [kernel] [k] vma_adjust 0.00% dd [kernel] [k] __split_vma 0.00% dd [kernel] [k] do_munmap 0.00% dd [kernel] [k] vma_merge 0.00% dd [kernel] [k] filp_close 0.00% dd [kernel] [k] vfs_write 0.00% dd [kernel] [k] __fput 0.00% dd [kernel] [k] test_ti_thread_flag 0.00% dd [kernel] [k] do_execve 0.00% dd [kernel] [k] exec_permission 0.00% dd [kernel] [k] getname 0.00% dd [kernel] [k] __follow_mount 0.00% dd [kernel] [k] path_put 0.00% dd [kernel] [k] path_to_nameidata 0.00% dd [kernel] [k] do_lookup 0.00% dd [kernel] [k] path_walk 0.00% dd [kernel] [k] do_filp_open 0.00% dd [kernel] [k] prepend 0.00% dd [kernel] [k] dput 0.00% dd [kernel] [k] touch_atime 0.00% dd [kernel] [k] alloc_fd 0.00% dd [kernel] [k] end_bio_bh_io_sync 0.00% dd [kernel] [k] mpage_end_io_write 0.00% dd [kernel] [k] do_mpage_readpage 0.00% dd [kernel] [k] fsnotify 0.00% dd [kernel] [k] inotify_dentry_parent_queue_event 0.00% dd [kernel] [k] jfs_open 0.00% dd [kernel] [k] security_inode_permission 0.00% dd [kernel] [k] blk_end_request 0.00% dd [kernel] [k] blk_done_softirq 0.00% dd [kernel] [k] cfq_get_queue 0.00% dd [kernel] [k] prio_tree_replace 0.00% dd [kernel] [k] prio_tree_insert 0.00% dd [kernel] [k] rb_insert_color 0.00% dd [kernel] [k] csum_partial 0.00% dd [kernel] [k] __get_user_4 0.00% dd [kernel] [k] __put_user_4 0.00% dd [kernel] [k] strlen 0.00% dd [kernel] [k] strncpy_from_user 0.00% dd [kernel] [k] __sg_free_table 0.00% dd [kernel] [k] add_timer_randomness 0.00% dd [kernel] [k] extract_buf 0.00% dd [kernel] [k] extract_entropy 0.00% dd [kernel] [k] n_tty_write 0.00% dd [kernel] [k] tty_insert_flip_string 0.00% dd [kernel] [k] tty_flip_buffer_push 0.00% dd [kernel] [k] get_device 0.00% dd [kernel] [k] put_device 0.00% dd [kernel] [k] scsi_log_send 0.00% dd [kernel] [k] scsi_log_completion 0.00% dd [kernel] [k] scsi_put_command 0.00% dd [kernel] [k] e100_exec_cb 0.00% dd [kernel] [k] e100_intr 0.00% dd [kernel] [k] e100_poll 0.00% dd [kernel] [k] dma_issue_pending_all 0.00% dd [kernel] [k] skb_release_data 0.00% dd [kernel] [k] skb_checksum 0.00% dd [kernel] [k] dev_hard_start_xmit 0.00% dd [kernel] [k] netif_receive_skb 0.00% dd [kernel] [k] net_rx_action 0.00% dd [kernel] [k] ip_local_out 0.00% dd [kernel] [k] tcp_parse_aligned_timestamp 0.00% dd [kernel] [k] tcp_data_snd_check 0.00% dd [kernel] [k] tcp_valid_rtt_meas 0.00% dd [kernel] [k] tcp_rcv_established 0.00% dd [kernel] [k] tcp_send_ack 0.00% dd [kernel] [k] raw_local_deliver 0.00% dd /lib/librt-2.11.so [.] __GI_clock_gettime 0.00% dd /lib/libpthread-2.11.so [.] __pthread_initialize_minimal_internal 0.00% dd /lib/libc-2.11.so [.] _init 0.00% dd /lib/libc-2.11.so [.] new_composite_name 0.00% dd /lib/libc-2.11.so [.] _nl_load_locale_from_archive 0.00% dd /lib/libc-2.11.so [.] _IO_file_overflow_internal 0.00% dd /lib/libc-2.11.so [.] index 0.00% dd /lib/libc-2.11.so [.] __GI_close 0.00% dd /lib/ld-2.11.so [.] _start 0.00% dd /lib/ld-2.11.so [.] do_lookup_x 0.00% dd /lib/ld-2.11.so [.] _dl_check_map_versions 0.00% dd /lib/ld-2.11.so [.] __open 0.00% dd /lib/ld-2.11.so [.] strcmp 0.00% dd /lib/ld-2.11.so [.] memmove 0.00% dd b7713b6c [.] 0x000000b7713b6c # # (For a higher level overview, try: perf report --sort comm,dso) # [-- Attachment #5: perf4.report --] [-- Type: text/plain, Size: 29539 bytes --] # Samples: 71344 # # Overhead Command Shared Object Symbol # ........ ....... ....................... ...... # 6.73% dd [kernel] [k] __copy_from_user_ll_nozero 5.94% dd [kernel] [k] xtSearch 5.22% dd [kernel] [k] dbAlloc 4.85% dd [kernel] [k] __clear_user 4.69% dd [kernel] [k] extAlloc 4.03% dd [kernel] [k] get_page_from_freelist 3.49% dd [kernel] [k] lmWriteRecord 3.30% dd [kernel] [k] __set_page_dirty 2.97% dd [kernel] [k] __wake_up 2.76% dd [kernel] [k] xtLookup 2.69% dd [kernel] [k] nobh_write_begin 2.64% dd [kernel] [k] find_get_page 2.32% dd [kernel] [k] __get_metapage 1.90% dd [kernel] [k] xtExtend 1.87% dd [kernel] [k] dbAllocBits 1.61% dd [kernel] [k] generic_file_buffered_write 1.58% dd [kernel] [k] dbAllocNext 1.39% dd [kernel] [k] release_metapage 1.39% dd [kernel] [k] jfs_get_block 1.33% dd [kernel] [k] txCommit 1.32% dd [kernel] [k] __mark_inode_dirty 1.30% dd [kernel] [k] extHint 1.29% dd [kernel] [k] txLock 1.20% dd [kernel] [k] add_to_page_cache_locked 1.10% dd [kernel] [k] nobh_write_end 1.08% dd [kernel] [k] __rcu_read_unlock 0.98% dd [kernel] [k] __alloc_pages_nodemask 0.96% dd [kernel] [k] unlock_page 0.95% dd [kernel] [k] lmLog 0.90% dd [kernel] [k] radix_tree_lookup_slot 0.86% dd [kernel] [k] iov_iter_copy_from_user_atomic 0.84% dd [kernel] [k] do_read_cache_page 0.82% dd [kernel] [k] dbAllocDmap 0.78% dd [kernel] [k] put_page 0.73% dd [kernel] [k] __wake_up_bit 0.67% dd [kernel] [k] read_cache_page 0.67% dd [kernel] [k] grab_cache_page_write_begin 0.64% dd [kernel] [k] __find_get_block_slow 0.62% dd [kernel] [k] kmem_cache_alloc 0.61% dd [kernel] [k] jfs_write_begin 0.55% dd [kernel] [k] zone_watermark_ok 0.54% dd [kernel] [k] kmem_cache_free 0.53% dd [kernel] [k] iov_iter_fault_in_readable 0.53% dd [kernel] [k] read_cache_page_async 0.52% dd [kernel] [k] ____pagevec_lru_add 0.52% dd [kernel] [k] dbSplit 0.50% dd [kernel] [k] txBeginAnon 0.50% dd [kernel] [k] iov_iter_advance 0.50% dd [kernel] [k] mark_page_accessed 0.48% dd [kernel] [k] diWrite 0.48% dd [kernel] [k] scsi_dispatch_cmd 0.48% dd [kernel] [k] __rcu_read_lock 0.48% dd [kernel] [k] scsi_request_fn 0.46% dd [kernel] [k] balance_dirty_pages_ratelimited_nr 0.46% dd [kernel] [k] inode_add_bytes 0.45% dd [kernel] [k] dbAdjTree 0.42% dd [kernel] [k] __set_page_dirty_buffers 0.40% dd [kernel] [k] alloc_page_buffers 0.38% dd [kernel] [k] alloc_buffer_head 0.38% dd [kernel] [k] __lru_cache_add 0.36% dd [kernel] [k] jfs_dirty_inode 0.35% dd [kernel] [k] next_zones_zonelist 0.34% dd [kernel] [k] copy_to_dinode 0.33% dd [kernel] [k] wait_on_page_read 0.33% dd [kernel] [k] mutex_lock 0.32% dd [kernel] [k] add_to_page_cache_lru 0.32% dd [kernel] [k] read_zero 0.31% dd [kernel] [k] free_buffer_head 0.31% dd [kernel] [k] mutex_unlock 0.27% dd [kernel] [k] _cond_resched 0.26% dd [kernel] [k] find_lock_page 0.23% dd [kernel] [k] txBegin 0.22% dd [kernel] [k] radix_tree_preload 0.22% dd [kernel] [k] __set_page_dirty_nobuffers 0.20% dd [kernel] [k] set_page_dirty 0.20% dd [kernel] [k] spin_unlock 0.17% dd [kernel] [k] do_page_fault 0.17% dd [kernel] [k] txEnd 0.16% dd [kernel] [k] jfs_commit_inode 0.16% dd [kernel] [k] schedule 0.16% perf [kernel] [k] __copy_from_user_ll_nozero 0.14% dd [kernel] [k] handle_mm_fault 0.14% dd [kernel] [k] unmap_underlying_metadata 0.13% dd [kernel] [k] up_write 0.13% dd [kernel] [k] txLockAlloc 0.13% dd [kernel] [k] lmGroupCommit 0.12% dd [kernel] [k] unmap_vmas 0.12% dd [kernel] [k] down_write 0.11% dd [kernel] [k] down_read 0.11% dd [kernel] [k] ehci_watchdog [ehci_hcd] 0.10% dd [kernel] [k] __page_cache_alloc 0.09% dd [kernel] [k] up_read 0.09% dd [kernel] [k] get_request 0.09% dd [kernel] [k] lbmIODone 0.09% dd [kernel] [k] blk_end_bidi_request 0.08% dd [kernel] [k] T.1339 0.08% dd [kernel] [k] free_hot_cold_page 0.07% dd [kernel] [k] set_bh_page 0.07% dd [kernel] [k] xtInsert 0.06% dd [kernel] [k] __do_softirq 0.06% dd [kernel] [k] sha_transform 0.06% dd [kernel] [k] handle_IRQ_event 0.05% dd [kernel] [k] generic_make_request 0.05% dd [kernel] [k] rcu_sched_qs 0.05% dd [kernel] [k] __blk_recalc_rq_segments 0.04% dd [kernel] [k] get_pageblock_flags_group 0.04% dd [kernel] [k] ata_sff_interrupt 0.04% dd [kernel] [k] __make_request 0.04% dd [kernel] [k] serio_interrupt 0.04% dd [kernel] [k] release_pages 0.03% dd [kernel] [k] test_clear_page_writeback 0.03% dd [kernel] [k] lbmWrite 0.03% dd [kernel] [k] __do_fault 0.03% dd [kernel] [k] jfs_get_inode_flags 0.03% perf [kernel] [k] T.1339 0.03% perf /home/cloos/bin/perf [.] __cmd_record 0.03% dd [kernel] [k] lmNextPage 0.02% dd [kernel] [k] __rcu_process_callbacks 0.02% dd [kernel] [k] down_read_trylock 0.02% dd [kernel] [k] filemap_fault 0.02% dd [kernel] [k] mdio_ctrl_hw 0.02% dd [kernel] [k] check_for_new_grace_period 0.02% dd [kernel] [k] preempt_schedule 0.02% perf [vdso] [.] 0x000000ffffe425 0.02% perf [kernel] [k] nobh_write_begin 0.02% dd [kernel] [k] anon_vma_prepare 0.02% dd [kernel] [k] blk_rq_init 0.02% dd [kernel] [k] blk_queue_bounce 0.02% dd [kernel] [k] blk_rq_bio_prep 0.02% dd [kernel] [k] cfq_set_request 0.02% dd [kernel] [k] mix_pool_bytes_extract 0.02% dd [kernel] [k] find_vma 0.02% perf [kernel] [k] dbAlloc 0.02% dd [kernel] [k] mempool_alloc 0.02% dd [kernel] [k] mpage_end_io_write 0.02% dd [kernel] [k] lbmAllocate 0.01% perf [kernel] [k] __get_metapage 0.01% dd [kernel] [k] __lookup_tag 0.01% perf [kernel] [k] release_metapage 0.01% perf /lib/libc-2.11.so [.] __libc_poll 0.01% dd [kernel] [k] vm_normal_page 0.01% dd [kernel] [k] init_request_from_bio 0.01% perf [kernel] [k] get_page_from_freelist 0.01% perf [kernel] [k] __set_page_dirty 0.01% dd [kernel] [k] bio_alloc_bioset 0.01% dd [kernel] [k] blk_update_request 0.01% dd [kernel] [k] kref_put 0.01% dd [kernel] [k] strnlen_user 0.01% dd [kernel] [k] e100_poll 0.01% perf [kernel] [k] extAlloc 0.01% perf [kernel] [k] scsi_dispatch_cmd 0.01% perf [kernel] [k] acpi_pm_read 0.01% dd [kernel] [k] mempool_alloc_slab 0.01% dd [kernel] [k] test_set_page_writeback 0.01% dd [kernel] [k] free_page_and_swap_cache 0.01% dd [kernel] [k] dbAdjCtl 0.01% dd [kernel] [k] i8042_interrupt 0.01% perf [kernel] [k] do_sys_poll 0.01% perf [kernel] [k] nobh_write_end 0.01% dd [kernel] [k] rcu_process_gp_end 0.01% dd [kernel] [k] free_hot_page 0.01% dd [kernel] [k] page_remove_rmap 0.01% dd [kernel] [k] page_add_new_anon_rmap 0.01% dd [kernel] [k] get_request_wait 0.01% dd [kernel] [k] get_io_context 0.01% dd [kernel] [k] __scsi_put_command 0.01% dd [kernel] [k] scsi_init_cmd_errh 0.01% dd b71a045f [.] 0x000000b71a045f 0.01% perf [kernel] [k] __wake_up 0.01% perf [kernel] [k] __wake_up_bit 0.01% perf /lib/libc-2.11.so [.] __GI___gettimeofday_internal 0.01% dd [kernel] [k] page_evictable 0.01% dd [kernel] [k] copy_strings 0.01% perf [kernel] [k] __hrtimer_start_range_ns 0.01% perf [kernel] [k] __generic_file_aio_write 0.01% perf [kernel] [k] seq_printf 0.01% perf [kernel] [k] jfs_get_block 0.01% perf [kernel] [k] xtSearch 0.01% perf [kernel] [k] txLock 0.01% dd [kernel] [k] sysenter_past_esp 0.01% dd [kernel] [k] lru_cache_add_lru 0.01% dd [kernel] [k] bio_phys_segments 0.01% dd [kernel] [k] lbmStartIO 0.01% dd [kernel] [k] blk_run_queue 0.01% dd [kernel] [k] cfq_cic_lookup 0.01% dd [kernel] [k] rwsem_wake 0.01% dd [kernel] [k] scsi_finish_command 0.01% dd [kernel] [k] scsi_decide_disposition 0.01% dd [kernel] [k] sd_done 0.01% dd [kernel] [k] ip_rcv 0.01% dd /lib/ld-2.11.so [.] do_lookup_x 0.00% perf [kernel] [k] timespec_add_safe 0.00% perf [kernel] [k] iov_iter_fault_in_readable 0.00% perf [kernel] [k] generic_file_buffered_write 0.00% perf [kernel] [k] generic_file_aio_write 0.00% perf [kernel] [k] __do_fault 0.00% perf [kernel] [k] copy_page_range 0.00% perf [kernel] [k] do_wp_page 0.00% perf [kernel] [k] vfs_write 0.00% perf [kernel] [k] xtExtend 0.00% perf [kernel] [k] dbAdjTree 0.00% perf [kernel] [k] dbAllocNext 0.00% perf [kernel] [k] strlen 0.00% perf [kernel] [k] scsi_request_fn 0.00% perf /lib/libpthread-2.11.so [.] __libc_write 0.00% dd [kernel] [k] try_to_wake_up 0.00% dd [kernel] [k] vma_prio_tree_remove 0.00% dd [kernel] [k] find_mergeable_anon_vma 0.00% dd [kernel] [k] do_lookup 0.00% dd [kernel] [k] link_path_walk 0.00% dd [kernel] [k] __d_lookup 0.00% dd [kernel] [k] dbFindLeaf 0.00% dd [kernel] [k] metapage_writepage 0.00% dd [kernel] [k] __jfs_getxattr 0.00% dd [kernel] [k] blk_recount_segments 0.00% dd [kernel] [k] scsi_run_queue 0.00% dd [kernel] [k] scsi_io_completion 0.00% dd [kernel] [k] ip_route_input 0.00% perf [kernel] [k] hrtimer_init 0.00% perf [kernel] [k] up_read 0.00% perf [kernel] [k] getnstimeofday 0.00% perf [kernel] [k] __rcu_read_lock 0.00% perf [kernel] [k] find_get_page 0.00% perf [kernel] [k] unlock_page 0.00% perf [kernel] [k] add_to_page_cache_lru 0.00% perf [kernel] [k] __alloc_pages_nodemask 0.00% perf [kernel] [k] find_vma 0.00% perf [kernel] [k] rw_verify_area 0.00% perf [kernel] [k] fput 0.00% perf [kernel] [k] sys_poll 0.00% perf [kernel] [k] inotify_inode_queue_event 0.00% perf [kernel] [k] xtLookup 0.00% perf [kernel] [k] dbAllocBits 0.00% perf [kernel] [k] ea_get 0.00% perf [kernel] [k] radix_tree_lookup_slot 0.00% perf [kernel] [k] format_decode 0.00% perf [kernel] [k] copy_to_user 0.00% perf [kernel] [k] mutex_lock 0.00% perf [kernel] [k] do_page_fault 0.00% dd [kernel] [k] test_ti_thread_flag 0.00% dd [kernel] [k] prepare_to_wait_exclusive 0.00% dd [kernel] [k] delayacct_end 0.00% dd [kernel] [k] perf_output_begin 0.00% dd [kernel] [k] end_page_writeback 0.00% dd [kernel] [k] __filemap_fdatawrite_range 0.00% dd [kernel] [k] free_pgd_range 0.00% dd [kernel] [k] __vma_link_rb 0.00% dd [kernel] [k] unlink_file_vma 0.00% dd [kernel] [k] mmap_region 0.00% dd [kernel] [k] do_mmap_pgoff 0.00% dd [kernel] [k] rw_verify_area 0.00% dd [kernel] [k] vfs_write 0.00% dd [kernel] [k] vfs_read 0.00% dd [kernel] [k] file_move 0.00% dd [kernel] [k] put_filp 0.00% dd [kernel] [k] path_walk 0.00% dd [kernel] [k] bio_endio 0.00% dd [kernel] [k] bio_init 0.00% dd [kernel] [k] bio_free 0.00% dd [kernel] [k] do_mpage_readpage 0.00% dd [kernel] [k] inotify_dentry_parent_queue_event 0.00% dd [kernel] [k] dbAllocDmapLev 0.00% dd [kernel] [k] dbAllocAG 0.00% dd [kernel] [k] req_bio_endio 0.00% dd [kernel] [k] blk_update_bidi_request 0.00% dd [kernel] [k] current_io_context 0.00% dd [kernel] [k] cfq_idle_slice_timer 0.00% dd [kernel] [k] _atomic_dec_and_lock 0.00% dd [kernel] [k] kobject_put 0.00% dd [kernel] [k] __get_user_4 0.00% dd [kernel] [k] __sg_free_table 0.00% dd [kernel] [k] add_timer_randomness 0.00% dd [kernel] [k] scsi_put_command 0.00% dd [kernel] [k] scsi_softirq_done 0.00% dd [kernel] [k] e100_enable_irq 0.00% dd [kernel] [k] yenta_interrupt 0.00% dd [kernel] [k] __inet_lookup_established 0.00% dd [kernel] [k] tcp_v4_rcv 0.00% dd [kernel] [k] error_code 0.00% dd /lib/libc-2.11.so [.] _dl_addr 0.00% perf [kernel] [k] restore_i387_xstate 0.00% perf [kernel] [k] task_nice 0.00% perf [kernel] [k] copy_process 0.00% perf [kernel] [k] set_normalized_timespec 0.00% perf [kernel] [k] __do_softirq 0.00% perf [kernel] [k] remove_wait_queue 0.00% perf [kernel] [k] add_wait_queue 0.00% perf [kernel] [k] do_gettimeofday 0.00% perf [kernel] [k] handle_IRQ_event 0.00% perf [kernel] [k] __rcu_read_unlock 0.00% perf [kernel] [k] perf_mmap_fault 0.00% perf [kernel] [k] generic_segment_checks 0.00% perf [kernel] [k] __page_cache_alloc 0.00% perf [kernel] [k] should_remove_suid 0.00% perf [kernel] [k] file_remove_suid 0.00% perf [kernel] [k] wait_on_page_read 0.00% perf [kernel] [k] iov_iter_copy_from_user_atomic 0.00% perf [kernel] [k] grab_cache_page_write_begin 0.00% perf [kernel] [k] set_page_dirty 0.00% perf [kernel] [k] balance_dirty_pages_ratelimited_nr 0.00% perf [kernel] [k] activate_page 0.00% perf [kernel] [k] release_pages 0.00% perf [kernel] [k] __lru_cache_add 0.00% perf [kernel] [k] __pte_alloc 0.00% perf [kernel] [k] handle_mm_fault 0.00% perf [kernel] [k] page_add_file_rmap 0.00% perf [kernel] [k] kmem_cache_alloc 0.00% perf [kernel] [k] inode_add_bytes 0.00% perf [kernel] [k] get_dumpable 0.00% perf [kernel] [k] path_walk 0.00% perf [kernel] [k] __pollwait 0.00% perf [kernel] [k] file_update_time 0.00% perf [kernel] [k] mnt_drop_write 0.00% perf [kernel] [k] seq_read 0.00% perf [kernel] [k] alloc_page_buffers 0.00% perf [kernel] [k] __set_page_dirty_buffers 0.00% perf [kernel] [k] __find_get_block_slow 0.00% perf [kernel] [k] jfs_dirty_inode 0.00% perf [kernel] [k] dbAllocDmap 0.00% perf [kernel] [k] extHint 0.00% perf [kernel] [k] txBeginAnon 0.00% perf [kernel] [k] ea_release 0.00% perf [kernel] [k] jfs_getxattr 0.00% perf [kernel] [k] cap_inode_need_killpriv 0.00% perf [kernel] [k] security_inode_need_killpriv 0.00% perf [kernel] [k] blk_update_request 0.00% perf [kernel] [k] __make_request 0.00% perf [kernel] [k] number 0.00% perf [kernel] [k] strncmp 0.00% perf [kernel] [k] schedule_hrtimeout_range 0.00% perf [kernel] [k] down_read 0.00% perf [kernel] [k] ehci_watchdog [ehci_hcd] 0.00% perf /lib/libpthread-2.11.so [.] __fork 0.00% perf /lib/libc-2.11.so [.] __GI___libc_read 0.00% perf /lib/ld-2.11.so [.] do_lookup_x 0.00% perf /lib/ld-2.11.so [.] strcmp 0.00% perf /home/cloos/bin/perf [.] pid_synthesize_mmap_samples 0.00% perf /home/cloos/bin/perf [.] hex2u64 0.00% dd [kernel] [k] ptep_set_access_flags 0.00% dd [kernel] [k] set_normalized_timespec 0.00% dd [kernel] [k] mod_timer 0.00% dd [kernel] [k] __queue_work 0.00% dd [kernel] [k] hrtimer_peek_ahead_timers 0.00% dd [kernel] [k] ktime_get_real 0.00% dd [kernel] [k] ktime_get_ts 0.00% dd [kernel] [k] rcu_bh_qs 0.00% dd [kernel] [k] __call_rcu 0.00% dd [kernel] [k] call_rcu 0.00% dd [kernel] [k] rcu_process_callbacks 0.00% dd [kernel] [k] perf_output_copy 0.00% dd [kernel] [k] generic_segment_checks 0.00% dd [kernel] [k] should_remove_suid 0.00% dd [kernel] [k] file_read_actor 0.00% dd [kernel] [k] find_get_pages_tag 0.00% dd [kernel] [k] __generic_file_aio_write 0.00% dd [kernel] [k] __writepage 0.00% dd [kernel] [k] get_dirty_limits 0.00% dd [kernel] [k] write_cache_pages 0.00% dd [kernel] [k] __do_page_cache_readahead 0.00% dd [kernel] [k] lru_add_drain 0.00% dd [kernel] [k] vma_prio_tree_insert 0.00% dd [kernel] [k] follow_page 0.00% dd [kernel] [k] do_wp_page 0.00% dd [kernel] [k] vm_get_page_prot 0.00% dd [kernel] [k] vm_stat_account 0.00% dd [kernel] [k] find_extend_vma 0.00% dd [kernel] [k] vma_link 0.00% dd [kernel] [k] page_add_file_rmap 0.00% dd [kernel] [k] anon_vma_free 0.00% dd [kernel] [k] kfree 0.00% dd [kernel] [k] kmem_cache_alloc_notrace 0.00% dd [kernel] [k] __kmalloc 0.00% dd [kernel] [k] sys_close 0.00% dd [kernel] [k] sys_read 0.00% dd [kernel] [k] sys_write 0.00% dd [kernel] [k] get_empty_filp 0.00% dd [kernel] [k] fput 0.00% dd [kernel] [k] cp_new_stat64 0.00% dd [kernel] [k] flush_old_exec 0.00% dd [kernel] [k] inode_permission 0.00% dd [kernel] [k] path_init 0.00% dd [kernel] [k] may_open 0.00% dd [kernel] [k] do_filp_open 0.00% dd [kernel] [k] dput 0.00% dd [kernel] [k] generic_write_sync 0.00% dd [kernel] [k] end_buffer_async_write 0.00% dd [kernel] [k] __bio_add_page 0.00% dd [kernel] [k] bio_alloc 0.00% dd [kernel] [k] bio_fs_destructor 0.00% dd [kernel] [k] fsnotify 0.00% dd [kernel] [k] locks_remove_flock 0.00% dd [kernel] [k] load_elf_binary 0.00% dd [kernel] [k] metapage_get_blocks 0.00% dd [kernel] [k] ea_get 0.00% dd [kernel] [k] cap_d_instantiate 0.00% dd [kernel] [k] elv_set_request 0.00% dd [kernel] [k] submit_bio 0.00% dd [kernel] [k] disk_map_sector_rcu 0.00% dd [kernel] [k] kobject_get 0.00% dd [kernel] [k] kref_get 0.00% dd [kernel] [k] prio_tree_replace 0.00% dd [kernel] [k] prio_tree_remove 0.00% dd [kernel] [k] prio_tree_insert 0.00% dd [kernel] [k] prop_fraction_percpu 0.00% dd [kernel] [k] radix_tree_gang_lookup_tag_slot 0.00% dd [kernel] [k] __rb_rotate_right 0.00% dd [kernel] [k] rb_erase 0.00% dd [kernel] [k] strlcpy 0.00% dd [kernel] [k] strlen 0.00% dd [kernel] [k] _copy_from_user 0.00% dd [kernel] [k] half_md4_transform 0.00% dd [kernel] [k] get_random_int 0.00% dd [kernel] [k] credit_entropy_bits 0.00% dd [kernel] [k] add_disk_randomness 0.00% dd [kernel] [k] extract_buf 0.00% dd [kernel] [k] extract_entropy 0.00% dd [kernel] [k] put_device 0.00% dd [kernel] [k] scsi_log_send 0.00% dd [kernel] [k] scsi_pool_free_command 0.00% dd [kernel] [k] scsi_handle_queue_ramp_up 0.00% dd [kernel] [k] __scsi_release_buffers 0.00% dd [kernel] [k] scsi_device_unbusy 0.00% dd [kernel] [k] e100_tx_clean 0.00% dd [kernel] [k] e100_watchdog 0.00% dd [kernel] [k] irq_handler 0.00% dd [kernel] [k] acpi_pm_read 0.00% dd [kernel] [k] __alloc_skb 0.00% dd [kernel] [k] __netdev_alloc_skb 0.00% dd [kernel] [k] sk_run_filter 0.00% dd [kernel] [k] ip_local_deliver 0.00% dd [kernel] [k] tcp_send_ack 0.00% dd [kernel] [k] preempt_schedule_irq 0.00% dd [kernel] [k] usb_hcd_irq [usbcore] 0.00% dd /lib/librt-2.11.so [.] 0x00000000006230 0.00% dd /lib/libpthread-2.11.so [.] abort@plt 0.00% dd /lib/libpthread-2.11.so [.] __libc_sigaction 0.00% dd /lib/libc-2.11.so [.] 0x00000000021f6c 0.00% dd /lib/libc-2.11.so [.] _IO_vfprintf_internal 0.00% dd /lib/libc-2.11.so [.] __GI_strstr 0.00% dd /lib/libc-2.11.so [.] __GI___libc_read 0.00% dd /lib/libc-2.11.so [.] __GI___register_atfork 0.00% dd /lib/libc-2.11.so [.] 0x00000000115e76 0.00% dd /lib/ld-2.11.so [.] _dl_cache_libcmp 0.00% dd /lib/ld-2.11.so [.] check_match.8476 0.00% dd /lib/ld-2.11.so [.] _dl_new_object 0.00% dd /lib/ld-2.11.so [.] __open # # (For a higher level overview, try: perf report --sort comm,dso) # [-- Attachment #6: perf5.report --] [-- Type: text/plain, Size: 26764 bytes --] # Samples: 15873 # # Overhead Command Shared Object Symbol # ........ ....... ....................... ...... # 40.32% dd [kernel] [k] __copy_from_user_ll_nozero 22.49% dd [kernel] [k] __clear_user 3.06% dd [kernel] [k] get_page_from_freelist 1.18% dd [kernel] [k] ext4_mark_iloc_dirty 1.13% dd [kernel] [k] __set_page_dirty 1.13% dd [kernel] [k] scsi_dispatch_cmd 0.93% dd [kernel] [k] __block_prepare_write 0.93% dd [kernel] [k] scsi_request_fn 0.81% dd [kernel] [k] kmem_cache_alloc 0.80% dd [kernel] [k] __ext4_get_inode_loc 0.64% dd [kernel] [k] ext4_da_get_block_prep 0.62% dd [kernel] [k] ext4_da_write_end 0.62% dd [kernel] [k] jbd2_journal_stop 0.57% dd [kernel] [k] add_to_page_cache_locked 0.49% dd [kernel] [k] create_empty_buffers 0.47% dd [kernel] [k] ext4_ext_calc_metadata_amount 0.46% dd [kernel] [k] ext4_da_write_begin 0.45% dd [kernel] [k] iov_iter_fault_in_readable 0.45% dd [kernel] [k] start_this_handle 0.43% perf [kernel] [k] generic_file_buffered_write 0.41% dd [kernel] [k] __find_get_block 0.36% dd [kernel] [k] __wake_up_bit 0.34% dd [kernel] [k] __alloc_pages_nodemask 0.34% dd [kernel] [k] __block_commit_write 0.32% dd [kernel] [k] generic_file_buffered_write 0.32% dd [kernel] [k] jbd2_journal_start 0.32% dd [kernel] [k] radix_tree_lookup_slot 0.30% dd [kernel] [k] ext4_get_blocks 0.29% perf [kernel] [k] number 0.28% perf [kernel] [k] vsnprintf 0.28% dd [kernel] [k] do_get_write_access 0.28% dd [kernel] [k] blk_end_bidi_request 0.27% dd [kernel] [k] __mark_inode_dirty 0.26% perf [kernel] [k] __generic_file_aio_write 0.24% dd [kernel] [k] ext4_ext_get_blocks 0.23% perf [kernel] [k] nobh_write_begin 0.23% perf [kernel] [k] __copy_from_user_ll_nozero 0.23% dd [kernel] [k] generic_write_end 0.23% dd [kernel] [k] ext4_journal_start_sb 0.23% dd [kernel] [k] jbd2_journal_add_journal_head 0.22% dd [kernel] [k] find_get_page 0.22% dd [kernel] [k] kmem_cache_free 0.22% dd [kernel] [k] ata_sff_interrupt 0.21% dd [kernel] [k] mark_page_accessed 0.21% dd [kernel] [k] __ext4_journal_stop 0.21% dd [kernel] [k] T.1339 0.21% dd [kernel] [k] handle_mm_fault 0.20% dd [kernel] [k] ____pagevec_lru_add 0.20% perf [kernel] [k] extAlloc 0.20% perf [kernel] [k] format_decode 0.20% dd [kernel] [k] alloc_page_buffers 0.19% dd [kernel] [k] unlock_page 0.18% perf [kernel] [k] T.1339 0.17% perf [kernel] [k] nobh_write_end 0.17% dd [kernel] [k] block_write_end 0.17% dd [kernel] [k] read_zero 0.16% perf [kernel] [k] scsi_dispatch_cmd 0.16% dd [kernel] [k] __wake_up 0.16% dd [kernel] [k] wake_up_bit 0.16% dd [kernel] [k] balance_dirty_pages_ratelimited_nr 0.16% dd [kernel] [k] __lru_cache_add 0.16% perf [kernel] [k] dbAlloc 0.16% dd [kernel] [k] mark_buffer_dirty 0.16% dd [kernel] [k] __find_get_block_slow 0.15% perf [kernel] [k] do_page_fault 0.15% dd [kernel] [k] add_to_page_cache_lru 0.15% dd [kernel] [k] grab_cache_page_write_begin 0.15% dd [kernel] [k] ext4_dirty_inode 0.14% perf [kernel] [k] __jfs_getxattr 0.14% perf [kernel] [k] find_get_page 0.14% perf [kernel] [k] generic_file_aio_write 0.14% perf [kernel] [k] get_page_from_freelist 0.13% dd [kernel] [k] __rcu_read_unlock 0.13% dd [kernel] [k] iov_iter_copy_from_user_atomic 0.13% dd [kernel] [k] ext4_has_free_blocks 0.13% dd [kernel] [k] ext4_inode_table 0.13% perf [kernel] [k] vfs_write 0.13% perf [kernel] [k] __mark_inode_dirty 0.12% perf [kernel] [k] iov_iter_fault_in_readable 0.12% perf [kernel] [k] copy_page_range 0.12% dd [kernel] [k] __rcu_process_callbacks 0.11% perf [kernel] [k] do_sync_write 0.11% dd [kernel] [k] put_page 0.11% dd [kernel] [k] ext4_claim_free_blocks 0.11% dd [kernel] [k] ext4_mark_inode_dirty 0.11% perf [kernel] [k] sysenter_past_esp 0.11% perf [kernel] [k] iov_iter_advance 0.11% dd [kernel] [k] up_read 0.11% dd [kernel] [k] rcu_process_gp_end 0.11% dd [kernel] [k] ext4_get_group_desc 0.11% dd [kernel] [k] ext4_get_inode_flags 0.11% dd [kernel] [k] __ext4_journal_get_write_access 0.11% dd [kernel] [k] jbd2_journal_dirty_metadata 0.10% perf [kernel] [k] getnstimeofday 0.10% perf [kernel] [k] iov_iter_copy_from_user_atomic 0.10% perf [kernel] [k] rw_verify_area 0.10% perf [kernel] [k] jfs_write_begin 0.10% perf [kernel] [k] acpi_pm_read 0.10% dd [kernel] [k] check_for_new_grace_period 0.09% perf [kernel] [k] __set_page_dirty 0.09% perf [kernel] [k] xtSearch 0.09% dd [kernel] [k] ext4_reserve_inode_write 0.09% dd [kernel] [k] blk_update_request 0.09% dd [kernel] [k] down_read 0.09% dd [kernel] [k] do_page_fault 0.09% dd [kernel] [k] ehci_watchdog [ehci_hcd] 0.09% dd [kernel] [k] __do_softirq 0.09% dd [kernel] [k] __rcu_read_lock 0.09% dd [kernel] [k] iov_iter_advance 0.09% dd [kernel] [k] find_lock_page 0.09% dd [kernel] [k] zone_watermark_ok 0.09% dd [kernel] [k] next_zones_zonelist 0.08% perf [vdso] [.] 0x000000ffffe424 0.08% perf [kernel] [k] __do_fault 0.08% perf [kernel] [k] scsi_request_fn 0.08% dd [kernel] [k] test_clear_page_writeback 0.08% dd [kernel] [k] block_write_begin 0.08% dd [kernel] [k] jbd2_journal_get_write_access 0.08% perf [kernel] [k] generic_segment_checks 0.08% perf [kernel] [k] mark_page_accessed 0.08% perf [kernel] [k] ea_get 0.07% perf [kernel] [k] sys_gettimeofday 0.07% perf [kernel] [k] __rcu_read_unlock 0.07% perf [kernel] [k] grab_cache_page_write_begin 0.07% perf [kernel] [k] __set_page_dirty_buffers 0.07% perf [kernel] [k] xtLookup 0.07% perf [kernel] [k] dbAllocBits 0.07% perf [kernel] [k] dbAllocNext 0.07% dd [kernel] [k] handle_IRQ_event 0.07% dd [kernel] [k] unmap_vmas 0.07% dd [kernel] [k] set_bh_page 0.07% dd [kernel] [k] end_buffer_async_write 0.07% dd [kernel] [k] radix_tree_preload 0.06% perf [kernel] [k] file_update_time 0.06% perf [kernel] [k] __get_metapage 0.06% dd [kernel] [k] release_pages 0.06% dd [kernel] [k] __getblk 0.06% perf [kernel] [k] balance_dirty_pages_ratelimited_nr 0.06% perf [kernel] [k] sys_write 0.06% perf [kernel] [k] inotify_dentry_parent_queue_event 0.06% dd [kernel] [k] down_read_trylock 0.06% dd [kernel] [k] alloc_buffer_head 0.06% dd [kernel] [k] jbd2_journal_cancel_revoke 0.06% dd [kernel] [k] mix_pool_bytes_extract 0.05% perf [kernel] [k] file_remove_suid 0.05% perf [kernel] [k] __alloc_pages_nodemask 0.05% perf [kernel] [k] put_page 0.05% perf [kernel] [k] kfree 0.05% perf [kernel] [k] jfs_get_block 0.05% perf [kernel] [k] xtExtend 0.05% perf [kernel] [k] radix_tree_lookup_slot 0.05% perf [kernel] [k] copy_to_user 0.05% dd [kernel] [k] __page_cache_alloc 0.05% dd [kernel] [k] __jbd2_log_space_left 0.05% dd [kernel] [k] scsi_init_cmd_errh 0.04% perf [kernel] [k] find_lock_page 0.04% perf [kernel] [k] do_wp_page 0.04% perf [kernel] [k] fget_light 0.04% perf [kernel] [k] fsnotify 0.04% perf [kernel] [k] extHint 0.04% perf [kernel] [k] strchr 0.04% perf [kernel] [k] schedule 0.04% dd [kernel] [k] __ext4_handle_dirty_metadata 0.04% dd [kernel] [k] spin_unlock 0.04% dd [kernel] [k] jbd2_journal_put_journal_head 0.04% dd [kernel] [k] scsi_finish_command 0.04% dd [kernel] [k] _cond_resched 0.04% perf [kernel] [k] set_page_dirty 0.04% perf [kernel] [k] handle_mm_fault 0.04% perf [kernel] [k] kmem_cache_alloc 0.04% perf [kernel] [k] seq_printf 0.04% perf [kernel] [k] generic_write_sync 0.04% perf [kernel] [k] jfs_dirty_inode 0.04% perf /home/cloos/bin/perf [.] __cmd_record 0.04% dd [kernel] [k] free_hot_cold_page 0.04% dd [kernel] [k] mdio_ctrl_hw 0.03% perf [kernel] [k] should_remove_suid 0.03% perf [kernel] [k] add_to_page_cache_locked 0.03% perf [kernel] [k] test_clear_page_writeback 0.03% perf [kernel] [k] kmem_cache_free 0.03% perf [kernel] [k] prepend 0.03% perf [kernel] [k] inotify_inode_queue_event 0.03% perf [kernel] [k] dbAllocDmap 0.03% perf [kernel] [k] ea_release 0.03% perf [kernel] [k] mutex_lock 0.03% dd [kernel] [k] kmem_cache_alloc_notrace 0.03% dd [kernel] [k] add_timer_randomness 0.03% dd [kernel] [k] scsi_put_command 0.03% dd [kernel] [k] scsi_run_queue 0.03% perf [kernel] [k] __do_softirq 0.03% perf [kernel] [k] __wake_up_bit 0.03% perf [kernel] [k] current_kernel_time 0.03% perf [kernel] [k] do_gettimeofday 0.03% perf [kernel] [k] __rcu_read_lock 0.03% perf [kernel] [k] zone_watermark_ok 0.03% perf [kernel] [k] ____pagevec_lru_add 0.03% perf [kernel] [k] __lru_cache_add 0.03% perf [kernel] [k] find_vma 0.03% perf [kernel] [k] inode_add_bytes 0.03% perf [kernel] [k] __fsnotify_parent 0.03% perf [kernel] [k] dbAdjTree 0.03% perf [kernel] [k] spin_unlock 0.03% perf [kernel] [k] security_inode_need_killpriv 0.03% perf [kernel] [k] radix_tree_preload 0.03% perf [kernel] [k] down_read 0.03% dd [kernel] [k] find_vma 0.03% dd [kernel] [k] unmap_underlying_metadata 0.03% dd [kernel] [k] scsi_handle_queue_ramp_up 0.03% dd [kernel] [k] scsi_softirq_done 0.02% perf [kernel] [k] __wake_up 0.02% perf [kernel] [k] up_read 0.02% perf [kernel] [k] perf_mmap_fault 0.02% perf [kernel] [k] unlock_page 0.02% perf [kernel] [k] vm_normal_page 0.02% perf [kernel] [k] mnt_clone_write 0.02% perf [kernel] [k] alloc_page_buffers 0.02% perf [kernel] [k] jfs_getxattr 0.02% perf [kernel] [k] cap_file_permission 0.02% perf [kernel] [k] blk_end_bidi_request 0.02% perf [kernel] [k] __make_request 0.02% perf [kernel] [k] _atomic_dec_and_lock 0.02% perf [kernel] [k] put_dec 0.02% perf [kernel] [k] strncmp 0.02% perf [kernel] [k] strlen 0.02% perf [kernel] [k] mutex_unlock 0.02% perf /home/cloos/bin/perf [.] pid_synthesize_mmap_samples 0.02% dd [kernel] [k] __do_fault 0.02% dd [kernel] [k] page_add_new_anon_rmap 0.02% dd [kernel] [k] end_bio_bh_io_sync 0.02% dd [kernel] [k] ext4_get_inode_loc 0.02% dd [kernel] [k] req_bio_endio 0.02% dd [kernel] [k] blk_update_bidi_request 0.02% dd [kernel] [k] __make_request 0.02% dd [kernel] [k] blk_done_softirq 0.02% dd [kernel] [k] disk_map_sector_rcu 0.02% dd [kernel] [k] kobject_get 0.02% dd [kernel] [k] scsi_io_completion 0.01% perf [kernel] [k] timespec_trunc 0.01% perf [kernel] [k] current_fs_time 0.01% perf [kernel] [k] hrtimer_try_to_cancel 0.01% perf [kernel] [k] rcu_sched_qs 0.01% perf [kernel] [k] __page_cache_alloc 0.01% perf [kernel] [k] add_to_page_cache_lru 0.01% perf [kernel] [k] read_cache_page_async 0.01% perf [kernel] [k] filemap_fault 0.01% perf [kernel] [k] poll_freewait 0.01% perf [kernel] [k] __d_path 0.01% perf [kernel] [k] mangle_path 0.01% perf [kernel] [k] __find_get_block_slow 0.01% perf [kernel] [k] unmap_underlying_metadata 0.01% perf [kernel] [k] show_map_vma 0.01% perf [kernel] [k] dbSplit 0.01% perf [kernel] [k] txLock 0.01% perf [kernel] [k] cap_inode_need_killpriv 0.01% perf [kernel] [k] put_dec_trunc 0.01% perf [kernel] [k] scsi_pool_free_command 0.01% perf [kernel] [k] ata_sff_interrupt 0.01% perf [kernel] [k] _cond_resched 0.01% perf [kernel] [k] preempt_schedule 0.01% perf [kernel] [k] ehci_watchdog [ehci_hcd] 0.01% dd [kernel] [k] try_to_wake_up 0.01% dd [kernel] [k] mempool_free 0.01% dd [kernel] [k] get_pageblock_flags_group 0.01% dd [kernel] [k] page_evictable 0.01% dd [kernel] [k] vm_normal_page 0.01% dd [kernel] [k] do_mmap_pgoff 0.01% dd [kernel] [k] fget_light 0.01% dd [kernel] [k] file_update_time 0.01% dd [kernel] [k] mnt_want_write_file 0.01% dd [kernel] [k] __brelse 0.01% dd [kernel] [k] unlock_buffer 0.01% dd [kernel] [k] bio_free 0.01% dd [kernel] [k] kobject_put 0.01% dd [kernel] [k] kref_get 0.01% dd [kernel] [k] credit_entropy_bits 0.01% dd [kernel] [k] __scsi_release_buffers 0.01% dd [kernel] [k] scsi_device_unbusy 0.01% dd [kernel] [k] yenta_interrupt 0.01% dd [kernel] [k] netif_receive_skb 0.01% dd /lib/libc-2.11.so [.] __GI___printf_fp 0.01% dd /lib/libc-2.11.so [.] _dl_addr 0.01% dd /lib/ld-2.11.so [.] _dl_lookup_symbol_x 0.01% dd /bin/dd [.] dd_copy 0.01% dd 804fa9d [.] 0x0000000804fa9d 0.01% perf [kernel] [k] sysenter_do_call 0.01% perf [kernel] [k] dup_mm 0.01% perf [kernel] [k] get_pid_task 0.01% perf [kernel] [k] down_read_trylock 0.01% perf [kernel] [k] module_put 0.01% perf [kernel] [k] do_read_cache_page 0.01% perf [kernel] [k] page_evictable 0.01% perf [kernel] [k] next_zones_zonelist 0.01% perf [kernel] [k] lock_page 0.01% perf [kernel] [k] __vma_link_rb 0.01% perf [kernel] [k] __vm_enough_memory 0.01% perf [kernel] [k] __anon_vma_link 0.01% perf [kernel] [k] page_add_file_rmap 0.01% perf [kernel] [k] page_remove_rmap 0.01% perf [kernel] [k] anon_vma_unlink 0.01% perf [kernel] [k] kmem_cache_alloc_notrace 0.01% perf [kernel] [k] do_sys_open 0.01% perf [kernel] [k] sys_read 0.01% perf [kernel] [k] generic_fillattr 0.01% perf [kernel] [k] acl_permission_check 0.01% perf [kernel] [k] path_walk 0.01% perf [kernel] [k] do_sys_poll 0.01% perf [kernel] [k] d_path 0.01% perf [kernel] [k] __d_lookup 0.01% perf [kernel] [k] dput 0.01% perf [kernel] [k] dup_fd 0.01% perf [kernel] [k] mnt_drop_write 0.01% perf [kernel] [k] mnt_want_write_file 0.01% perf [kernel] [k] free_buffer_head 0.01% perf [kernel] [k] bio_put 0.01% perf [kernel] [k] m_next 0.01% perf [kernel] [k] show_map 0.01% perf [kernel] [k] m_start 0.01% perf [kernel] [k] proc_lookup_de 0.01% perf [kernel] [k] proc_pid_status 0.01% perf [kernel] [k] release_metapage 0.01% perf [kernel] [k] txBeginAnon 0.01% perf [kernel] [k] security_file_permission 0.01% perf [kernel] [k] security_inode_getattr 0.01% perf [kernel] [k] cap_task_to_inode 0.01% perf [kernel] [k] blk_update_request 0.01% perf [kernel] [k] get_request_wait 0.01% perf [kernel] [k] rb_insert_color 0.01% perf [kernel] [k] string 0.01% perf [kernel] [k] strnlen 0.01% perf [kernel] [k] mix_pool_bytes_extract 0.01% perf [kernel] [k] scsi_handle_queue_ramp_up 0.01% perf [kernel] [k] scsi_decide_disposition 0.01% perf [kernel] [k] scsi_init_cmd_errh 0.01% perf [kernel] [k] scsi_io_completion 0.01% perf /lib/libpthread-2.11.so [.] __libc_write 0.01% perf /lib/libc-2.11.so [.] _IO_getline_internal 0.01% perf /lib/libc-2.11.so [.] _IO_default_xsputn_internal 0.01% perf /lib/libc-2.11.so [.] __GI___gettimeofday_internal 0.01% dd [kernel] [k] do_group_exit 0.01% dd [kernel] [k] __queue_work 0.01% dd [kernel] [k] prepare_creds 0.01% dd [kernel] [k] commit_creds 0.01% dd [kernel] [k] rcu_bh_qs 0.01% dd [kernel] [k] __generic_file_aio_write 0.01% dd [kernel] [k] do_wp_page 0.01% dd [kernel] [k] __vm_enough_memory 0.01% dd [kernel] [k] vma_adjust 0.01% dd [kernel] [k] spin_unlock 0.01% dd [kernel] [k] anon_vma_prepare 0.01% dd [kernel] [k] rw_verify_area 0.01% dd [kernel] [k] file_free_rcu 0.01% dd [kernel] [k] __fput 0.01% dd [kernel] [k] path_get 0.01% dd [kernel] [k] __d_lookup 0.01% dd [kernel] [k] submit_bh 0.01% dd [kernel] [k] bio_put 0.01% dd [kernel] [k] bio_fs_destructor 0.01% dd [kernel] [k] fsnotify 0.01% dd [kernel] [k] inotify_inode_queue_event 0.01% dd [kernel] [k] ext4_check_dir_entry 0.01% dd [kernel] [k] ext4_find_entry 0.01% dd [kernel] [k] dtSearch 0.01% dd [kernel] [k] cap_inode_need_killpriv 0.01% dd [kernel] [k] get_vfs_caps_from_disk 0.01% dd [kernel] [k] blk_end_request 0.01% dd [kernel] [k] blk_run_queue 0.01% dd [kernel] [k] kref_put 0.01% dd [kernel] [k] rb_insert_color 0.01% dd [kernel] [k] sha_transform 0.01% dd [kernel] [k] csum_partial 0.01% dd [kernel] [k] strnlen_user 0.01% dd [kernel] [k] _copy_from_user 0.01% dd [kernel] [k] __sg_free_table 0.01% dd [kernel] [k] add_disk_randomness 0.01% dd [kernel] [k] n_tty_write 0.01% dd [kernel] [k] get_device 0.01% dd [kernel] [k] scsi_log_completion 0.01% dd [kernel] [k] scsi_pool_free_command 0.01% dd [kernel] [k] scsi_decide_disposition 0.01% dd [kernel] [k] scsi_sg_free 0.01% dd [kernel] [k] __alloc_skb 0.01% dd [kernel] [k] tcp_v4_rcv 0.01% dd [kernel] [k] schedule 0.01% dd [kernel] [k] preempt_schedule 0.01% dd [kernel] [k] usb_hcd_irq [usbcore] 0.01% dd /lib/libc-2.11.so [.] __GI_getenv 0.01% dd /lib/libc-2.11.so [.] _IO_new_do_write 0.01% dd /lib/libc-2.11.so [.] __GI_strcmp 0.01% dd /lib/libc-2.11.so [.] __GI___libc_read 0.01% dd /lib/ld-2.11.so [.] security_init 0.01% dd /lib/ld-2.11.so [.] _dl_map_object 0.01% dd /lib/ld-2.11.so [.] do_lookup_x 0.01% dd /lib/ld-2.11.so [.] _dl_relocate_object 0.01% dd /lib/ld-2.11.so [.] 0x0000000000baa4 0.01% dd /lib/ld-2.11.so [.] _dl_fixup 0.01% dd /lib/ld-2.11.so [.] _dl_name_match_p 0.01% dd /bin/dd [.] print_stats 0.01% dd /bin/dd [.] iread # # (For a higher level overview, try: perf report --sort comm,dso) # [-- Attachment #7: perf6.report --] [-- Type: text/plain, Size: 32231 bytes --] # Samples: 26633 # # Overhead Command Shared Object Symbol # ........ ....... ....................... ...... # 19.21% dd [kernel] [k] __copy_from_user_ll 11.34% dd [kernel] [k] __clear_user 10.06% dd [kernel] [k] get_page_from_freelist 7.95% dd [kernel] [k] __set_page_dirty_nobuffers 3.15% dd [kernel] [k] add_to_page_cache_locked 2.47% dd [kernel] [k] __alloc_pages_nodemask 1.67% perf [kernel] [k] generic_file_buffered_write 1.33% dd [kernel] [k] ____pagevec_lru_add 1.32% dd [kernel] [k] prepare_pages 1.30% dd [kernel] [k] zone_watermark_ok 1.26% dd [kernel] [k] find_get_page 1.22% dd [kernel] [k] find_or_create_page 1.19% dd [kernel] [k] btrfs_copy_from_user 1.05% dd [kernel] [k] __lru_cache_add 0.95% perf [kernel] [k] __generic_file_aio_write 0.87% dd [kernel] [k] read_zero 0.86% dd [kernel] [k] add_to_page_cache_lru 0.82% dd [kernel] [k] next_zones_zonelist 0.79% dd [kernel] [k] page_mkclean 0.75% dd [kernel] [k] put_page 0.67% dd [kernel] [k] __rcu_read_unlock 0.66% perf [kernel] [k] T.1339 0.65% dd [kernel] [k] T.1339 0.63% dd [kernel] [k] btrfs_drop_pages 0.62% perf [kernel] [k] iov_iter_advance 0.61% dd [kernel] [k] find_lock_page 0.59% perf [kernel] [k] do_sync_write 0.58% perf [kernel] [k] nobh_write_end 0.57% perf [kernel] [k] generic_file_aio_write 0.57% perf [kernel] [k] vfs_write 0.56% dd [kernel] [k] clear_page_dirty_for_io 0.55% perf [kernel] [k] __jfs_getxattr 0.54% dd [kernel] [k] __mark_inode_dirty 0.53% dd [kernel] [k] radix_tree_lookup_slot 0.53% perf [kernel] [k] nobh_write_begin 0.50% perf [kernel] [k] iov_iter_copy_from_user_atomic 0.50% dd [kernel] [k] radix_tree_preload 0.48% perf [kernel] [k] sysenter_past_esp 0.47% perf [kernel] [k] acpi_pm_read 0.45% dd [kernel] [k] unlock_page 0.44% perf [kernel] [k] find_get_page 0.44% dd [kernel] [k] do_page_fault 0.41% perf [kernel] [k] sys_write 0.39% perf [kernel] [k] getnstimeofday 0.38% perf [kernel] [k] generic_segment_checks 0.38% dd [kernel] [k] _cond_resched 0.37% perf [kernel] [k] rw_verify_area 0.35% perf [kernel] [k] jfs_write_begin 0.33% perf [kernel] [k] copy_to_user 0.31% perf [kernel] [k] ea_get 0.31% dd [kernel] [k] mark_page_accessed 0.30% dd [kernel] [k] btrfs_set_page_dirty 0.30% perf [kernel] [k] balance_dirty_pages_ratelimited_nr 0.29% dd [kernel] [k] set_page_extent_mapped 0.28% perf [kernel] [k] iov_iter_fault_in_readable 0.27% dd [kernel] [k] __rcu_read_lock 0.27% perf [kernel] [k] __copy_from_user_ll_nozero 0.25% dd [kernel] [k] __wake_up_bit 0.25% dd [kernel] [k] schedule 0.24% dd [kernel] [k] handle_mm_fault 0.24% dd [kernel] [k] set_page_dirty 0.24% dd [kernel] [k] unmap_vmas 0.23% perf [kernel] [k] grab_cache_page_write_begin 0.23% perf [vdso] [.] 0x000000ffffe424 0.21% perf [kernel] [k] sys_gettimeofday 0.21% perf [kernel] [k] __mark_inode_dirty 0.21% dd [kernel] [k] dirty_and_release_pages 0.19% dd [kernel] [k] free_hot_cold_page 0.18% perf [kernel] [k] __rcu_read_unlock 0.18% perf [kernel] [k] __set_page_dirty_buffers 0.17% perf [kernel] [k] kfree 0.17% perf [kernel] [k] number 0.17% dd [kernel] [k] map_private_extent_buffer 0.15% perf [kernel] [k] fsnotify 0.15% perf [kernel] [k] extAlloc 0.15% perf [kernel] [k] jfs_getxattr 0.15% perf [kernel] [k] put_page 0.15% perf [kernel] [k] fget_light 0.15% perf [kernel] [k] cap_inode_need_killpriv 0.15% dd [kernel] [k] sha_transform 0.15% dd [kernel] [k] rcu_sched_qs 0.14% perf [kernel] [k] current_fs_time 0.14% perf [kernel] [k] do_gettimeofday 0.14% perf [kernel] [k] file_update_time 0.14% perf [kernel] [k] inotify_inode_queue_event 0.14% perf [kernel] [k] inotify_dentry_parent_queue_event 0.14% perf [kernel] [k] vsnprintf 0.13% dd [kernel] [k] read_extent_buffer 0.12% perf [kernel] [k] __set_page_dirty 0.12% dd [kernel] [k] generic_bin_search 0.12% perf [kernel] [k] find_lock_page 0.12% perf [kernel] [k] strlen 0.11% perf [kernel] [k] timespec_trunc 0.11% perf [kernel] [k] file_remove_suid 0.11% perf [kernel] [k] __fsnotify_parent 0.11% perf [kernel] [k] schedule 0.11% dd [kernel] [k] ehci_watchdog [ehci_hcd] 0.11% perf [kernel] [k] generic_write_sync 0.11% perf [kernel] [k] strncmp 0.11% perf [kernel] [k] xtSearch 0.11% perf [kernel] [k] dbAlloc 0.10% perf [kernel] [k] should_remove_suid 0.10% perf [kernel] [k] ea_release 0.09% perf [kernel] [k] xtLookup 0.09% perf [kernel] [k] radix_tree_lookup_slot 0.09% perf [kernel] [k] _cond_resched 0.09% perf [kernel] [k] get_page_from_freelist 0.09% dd [kernel] [k] __do_softirq 0.09% perf [kernel] [k] __wake_up_bit 0.09% perf [kernel] [k] copy_page_range 0.09% perf /home/cloos/bin/perf [.] __cmd_record 0.08% dd [kernel] [k] scsi_dispatch_cmd 0.08% perf [kernel] [k] jfs_dirty_inode 0.08% perf [kernel] [k] dbAllocBits 0.08% perf [kernel] [k] format_decode 0.08% dd [kernel] [k] map_extent_buffer 0.08% perf [kernel] [k] current_kernel_time 0.08% dd [kernel] [k] __rcu_process_callbacks 0.08% dd [kernel] [k] get_pageblock_flags_group 0.08% dd [kernel] [k] btrfs_search_slot 0.08% dd [kernel] [k] blk_end_bidi_request 0.07% perf [kernel] [k] __rcu_read_lock 0.07% perf [kernel] [k] set_page_dirty 0.07% perf [kernel] [k] down_read 0.07% perf [kernel] [k] unlock_page 0.07% perf [kernel] [k] mark_page_accessed 0.07% perf [kernel] [k] mutex_lock 0.07% dd [kernel] [k] __do_fault 0.07% dd [kernel] [k] kmem_cache_alloc 0.06% dd [kernel] [k] rcu_process_gp_end 0.06% dd [kernel] [k] check_for_new_grace_period 0.06% perf [kernel] [k] __do_fault 0.06% perf [kernel] [k] cap_file_permission 0.06% dd [kernel] [k] filemap_fault 0.06% dd [kernel] [k] find_vma 0.06% dd [kernel] [k] btrfs_key_generation 0.05% perf [kernel] [k] sysenter_do_call 0.05% perf [kernel] [k] extHint 0.05% perf [kernel] [k] do_page_fault 0.05% dd [kernel] [k] ata_sff_interrupt 0.05% perf [kernel] [k] up_read 0.05% perf [kernel] [k] mnt_clone_write 0.05% perf [kernel] [k] jfs_get_block 0.05% perf [kernel] [k] xtExtend 0.05% dd [kernel] [k] release_pages 0.05% dd [kernel] [k] vm_normal_page 0.05% dd [kernel] [k] btrfs_file_write 0.05% dd [kernel] [k] mdio_ctrl_hw 0.05% perf [kernel] [k] security_file_permission 0.05% dd [kernel] [k] anon_vma_prepare 0.04% perf [kernel] [k] mutex_unlock 0.04% dd [kernel] [k] scsi_request_fn 0.03% perf [kernel] [k] seq_printf 0.03% perf [kernel] [k] dbAllocNext 0.03% perf [kernel] [k] __get_metapage 0.03% dd [kernel] [k] free_hot_page 0.03% dd [kernel] [k] page_remove_rmap 0.03% dd [kernel] [k] verify_parent_transid 0.03% dd [kernel] [k] btrfs_key_blockptr 0.03% dd [kernel] [k] btrfs_queue_worker 0.03% perf [kernel] [k] __wake_up 0.03% perf [kernel] [k] mangle_path 0.03% perf [kernel] [k] dbAllocDmap 0.03% dd [kernel] [k] up_read 0.03% dd [kernel] [k] handle_IRQ_event 0.03% dd [kernel] [k] page_add_new_anon_rmap 0.03% dd [kernel] [k] copy_strings 0.03% dd [kernel] [k] extent_buffer_uptodate 0.03% perf [kernel] [k] __do_softirq 0.03% perf [kernel] [k] rcu_sched_qs 0.03% perf [kernel] [k] do_sys_poll 0.03% perf [kernel] [k] mnt_drop_write 0.03% perf [kernel] [k] dbSplit 0.03% perf [kernel] [k] strchr 0.03% dd [kernel] [k] btrfs_clear_path_blocking 0.03% dd [kernel] [k] test_range_bit 0.02% perf [kernel] [k] perf_mmap_fault 0.02% perf [kernel] [k] add_to_page_cache_locked 0.02% perf [kernel] [k] read_cache_page_async 0.02% perf [kernel] [k] ____pagevec_lru_add 0.02% perf [kernel] [k] kmem_cache_alloc 0.02% perf [kernel] [k] __d_path 0.02% perf [kernel] [k] dbAdjTree 0.02% perf [kernel] [k] release_metapage 0.02% dd [kernel] [k] __wake_up 0.02% dd [kernel] [k] down_read_trylock 0.02% dd [kernel] [k] lru_cache_add_lru 0.02% dd [kernel] [k] page_evictable 0.02% dd [kernel] [k] link_path_walk 0.02% dd [kernel] [k] read_block_for_search 0.02% dd [kernel] [k] find_extent_buffer 0.02% dd [kernel] [k] blk_update_request 0.02% dd [kernel] [k] preempt_schedule 0.02% perf [kernel] [k] read_cache_page 0.02% perf [kernel] [k] __alloc_pages_nodemask 0.02% perf /lib/libc-2.11.so [.] __GI___gettimeofday_internal 0.02% dd [kernel] [k] try_to_wake_up 0.02% dd [kernel] [k] btrfs_header_nritems 0.02% dd [kernel] [k] merge_state 0.02% dd [kernel] [k] unmap_extent_buffer 0.02% dd [kernel] [k] __make_request 0.02% perf [kernel] [k] __lru_cache_add 0.02% perf [kernel] [k] handle_mm_fault 0.02% perf [kernel] [k] kmem_cache_free 0.02% perf [kernel] [k] inode_add_bytes 0.02% perf [kernel] [k] alloc_buffer_head 0.02% perf [kernel] [k] alloc_page_buffers 0.02% perf [kernel] [k] security_inode_need_killpriv 0.02% perf [kernel] [k] ehci_watchdog [ehci_hcd] 0.02% dd [kernel] [k] __call_rcu 0.02% dd [kernel] [k] unlink_file_vma 0.02% dd [kernel] [k] mmap_region 0.02% dd [kernel] [k] kmem_cache_alloc_notrace 0.02% dd [kernel] [k] load_elf_binary 0.02% dd [kernel] [k] __btrfs_cow_block 0.02% dd [kernel] [k] btrfs_buffer_uptodate 0.02% dd [kernel] [k] insert_state 0.02% dd [kernel] [k] btrfs_tree_unlock 0.02% dd [kernel] [k] blk_update_bidi_request 0.02% dd [kernel] [k] mix_pool_bytes_extract 0.02% dd [kernel] [k] scsi_run_queue 0.02% dd /lib/ld-2.11.so [.] do_lookup_x 0.02% dd /bin/dd [.] dd_copy 0.02% dd b70ef45f [.] 0x000000b70ef45f 0.01% perf [kernel] [k] do_read_cache_page 0.01% perf [kernel] [k] filemap_fault 0.01% perf [kernel] [k] next_zones_zonelist 0.01% perf [kernel] [k] anon_vma_link 0.01% perf [kernel] [k] prepend 0.01% perf [kernel] [k] free_buffer_head 0.01% perf [kernel] [k] __find_get_block_slow 0.01% perf [kernel] [k] txBeginAnon 0.01% perf [kernel] [k] schedule_hrtimeout_range 0.01% perf /lib/libpthread-2.11.so [.] __libc_write 0.01% dd [kernel] [k] mprotect_fixup 0.01% dd [kernel] [k] free_page_and_swap_cache 0.01% dd [kernel] [k] kmem_cache_free 0.01% dd [kernel] [k] inotify_inode_queue_event 0.01% dd [kernel] [k] btrfs_unlock_up_safe 0.01% dd [kernel] [k] bin_search 0.01% dd [kernel] [k] unlock_up 0.01% dd [kernel] [k] check_force_delalloc 0.01% dd [kernel] [k] block_group_cache_tree_search 0.01% dd [kernel] [k] btrfs_reserve_metadata_for_delalloc 0.01% dd [kernel] [k] btrfs_set_timespec_nsec 0.01% dd [kernel] [k] set_extent_bit 0.01% dd [kernel] [k] __btrfs_map_block 0.01% dd [kernel] [k] btrfs_spin_on_block 0.01% dd [kernel] [k] _atomic_dec_and_lock 0.01% dd [kernel] [k] prio_tree_insert 0.01% dd [kernel] [k] strnlen_user 0.01% dd [kernel] [k] e100_enable_irq 0.01% perf [kernel] [k] dup_mm 0.01% perf [kernel] [k] __hrtimer_start_range_ns 0.01% perf [kernel] [k] __page_cache_alloc 0.01% perf [kernel] [k] add_to_page_cache_lru 0.01% perf [kernel] [k] zone_watermark_ok 0.01% perf [kernel] [k] do_wp_page 0.01% perf [kernel] [k] path_put 0.01% perf [kernel] [k] __pollwait 0.01% perf [kernel] [k] d_path 0.01% perf [kernel] [k] mnt_want_write_file 0.01% perf [kernel] [k] show_map_vma 0.01% perf [kernel] [k] txLock 0.01% perf [kernel] [k] blk_end_bidi_request 0.01% perf [kernel] [k] _atomic_dec_and_lock 0.01% perf [kernel] [k] put_dec 0.01% perf [kernel] [k] ata_sff_interrupt 0.01% perf [kernel] [k] preempt_schedule 0.01% perf /home/cloos/bin/perf [.] pid_synthesize_mmap_samples 0.01% dd [kernel] [k] current_kernel_time 0.01% dd [kernel] [k] perf_output_copy 0.01% dd [kernel] [k] generic_file_aio_read 0.01% dd [kernel] [k] generic_write_checks 0.01% dd [kernel] [k] vfs_read 0.01% dd [kernel] [k] exec_permission 0.01% dd [kernel] [k] fsnotify 0.01% dd [kernel] [k] inotify_dentry_parent_queue_event 0.01% dd [kernel] [k] setup_items_for_insert 0.01% dd [kernel] [k] btrfs_alloc_free_block 0.01% dd [kernel] [k] btrfs_check_data_free_space 0.01% dd [kernel] [k] end_workqueue_bio 0.01% dd [kernel] [k] btrfs_set_extent_delalloc 0.01% dd [kernel] [k] lookup_extent_mapping 0.01% dd [kernel] [k] btrfs_set_timespec_sec 0.01% dd [kernel] [k] btrfs_set_inode_transid 0.01% dd [kernel] [k] free_extent_buffer 0.01% dd [kernel] [k] lock_extent 0.01% dd [kernel] [k] set_extent_buffer_dirty 0.01% dd [kernel] [k] btrfs_clear_lock_blocking 0.01% dd [kernel] [k] btrfs_try_spin_lock 0.01% dd [kernel] [k] btrfs_tree_lock 0.01% dd [kernel] [k] btrfs_set_lock_blocking 0.01% dd [kernel] [k] search_bitmap 0.01% dd [kernel] [k] tree_insert 0.01% dd [kernel] [k] add_delayed_tree_ref 0.01% dd [kernel] [k] blk_done_softirq 0.01% dd [kernel] [k] strncpy_from_user 0.01% dd [kernel] [k] half_md4_transform 0.01% dd [kernel] [k] add_timer_randomness 0.01% dd [kernel] [k] scsi_finish_command 0.01% dd [kernel] [k] scsi_next_command 0.01% dd [kernel] [k] yenta_interrupt 0.01% dd /lib/libc-2.11.so [.] _dl_addr 0.01% dd /lib/ld-2.11.so [.] check_match.8476 0.00% perf [kernel] [k] arch_dup_task_struct 0.00% perf [kernel] [k] test_ti_thread_flag 0.00% perf [kernel] [k] task_fork_fair 0.00% perf [kernel] [k] copy_process 0.00% perf [kernel] [k] hrtimer_start_range_ns 0.00% perf [kernel] [k] hrtimer_try_to_cancel 0.00% perf [kernel] [k] down_read_trylock 0.00% perf [kernel] [k] ktime_get_ts 0.00% perf [kernel] [k] perf_poll 0.00% perf [kernel] [k] __set_page_dirty_nobuffers 0.00% perf [kernel] [k] activate_page 0.00% perf [kernel] [k] vma_prio_tree_add 0.00% perf [kernel] [k] vm_normal_page 0.00% perf [kernel] [k] find_vma 0.00% perf [kernel] [k] unmap_region 0.00% perf [kernel] [k] mmap_region 0.00% perf [kernel] [k] do_mmap_pgoff 0.00% perf [kernel] [k] page_add_file_rmap 0.00% perf [kernel] [k] reuse_swap_page 0.00% perf [kernel] [k] sys_read 0.00% perf [kernel] [k] __fput 0.00% perf [kernel] [k] may_open 0.00% perf [kernel] [k] link_path_walk 0.00% perf [kernel] [k] estimate_accuracy 0.00% perf [kernel] [k] poll_schedule_timeout 0.00% perf [kernel] [k] sys_poll 0.00% perf [kernel] [k] spin_unlock 0.00% perf [kernel] [k] dup_fd 0.00% perf [kernel] [k] alloc_fd 0.00% perf [kernel] [k] seq_putc 0.00% perf [kernel] [k] unmap_underlying_metadata 0.00% perf [kernel] [k] show_map 0.00% perf [kernel] [k] proc_lookup_de 0.00% perf [kernel] [k] render_sigset_t 0.00% perf [kernel] [k] dbFindCtl 0.00% perf [kernel] [k] spin_unlock 0.00% perf [kernel] [k] rb_insert_color 0.00% perf [kernel] [k] down_write 0.00% perf /lib/libc-2.11.so [.] _IO_default_xsputn_internal 0.00% perf /lib/libc-2.11.so [.] _IO_str_init_static_internal 0.00% perf /lib/ld-2.11.so [.] do_lookup_x 0.00% perf /lib/ld-2.11.so [.] _dl_fixup 0.00% dd [kernel] [k] sysenter_past_esp 0.00% dd [kernel] [k] nommu_sync_single_for_device 0.00% dd [kernel] [k] sched_move_task 0.00% dd [kernel] [k] timespec_trunc 0.00% dd [kernel] [k] spin_unlock_irq 0.00% dd [kernel] [k] __queue_work 0.00% dd [kernel] [k] __task_pid_nr_ns 0.00% dd [kernel] [k] __mutex_init 0.00% dd [kernel] [k] hrtimer_peek_ahead_timers 0.00% dd [kernel] [k] release_tgcred 0.00% dd [kernel] [k] ktime_get_ts 0.00% dd [kernel] [k] perf_event_comm 0.00% dd [kernel] [k] sync_page 0.00% dd [kernel] [k] get_dirty_limits 0.00% dd [kernel] [k] balance_dirty_pages_ratelimited_nr 0.00% dd [kernel] [k] vma_prio_tree_insert 0.00% dd [kernel] [k] get_unmapped_area 0.00% dd [kernel] [k] remove_vma 0.00% dd [kernel] [k] __vm_enough_memory 0.00% dd [kernel] [k] unmap_region 0.00% dd [kernel] [k] do_mmap_pgoff 0.00% dd [kernel] [k] __anon_vma_link 0.00% dd [kernel] [k] __kmalloc 0.00% dd [kernel] [k] __dentry_open 0.00% dd [kernel] [k] sys_write 0.00% dd [kernel] [k] fget_light 0.00% dd [kernel] [k] generic_fillattr 0.00% dd [kernel] [k] cp_new_stat64 0.00% dd [kernel] [k] get_arg_page 0.00% dd [kernel] [k] acl_permission_check 0.00% dd [kernel] [k] inode_permission 0.00% dd [kernel] [k] getname 0.00% dd [kernel] [k] do_lookup 0.00% dd [kernel] [k] path_walk 0.00% dd [kernel] [k] sys_dup3 0.00% dd [kernel] [k] d_instantiate 0.00% dd [kernel] [k] d_path 0.00% dd [kernel] [k] __d_lookup 0.00% dd [kernel] [k] expand_files 0.00% dd [kernel] [k] mntput_no_expire 0.00% dd [kernel] [k] bio_put 0.00% dd [kernel] [k] bvec_alloc_bs 0.00% dd [kernel] [k] bio_alloc_bioset 0.00% dd [kernel] [k] locks_remove_posix 0.00% dd [kernel] [k] removed_exe_file_vma 0.00% dd [kernel] [k] check_block 0.00% dd [kernel] [k] btrfs_alloc_path 0.00% dd [kernel] [k] btrfs_lock_root_node 0.00% dd [kernel] [k] btrfs_get_alloc_profile 0.00% dd [kernel] [k] btrfs_init_new_buffer 0.00% dd [kernel] [k] btrfs_lookup_block_group 0.00% dd [kernel] [k] check_ref_cleanup 0.00% dd [kernel] [k] btrfs_unreserve_metadata_for_delalloc 0.00% dd [kernel] [k] btrfs_reserve_extent 0.00% dd [kernel] [k] btrfs_lookup_xattr 0.00% dd [kernel] [k] btrfs_set_buffer_uptodate 0.00% dd [kernel] [k] btrfs_find_create_tree_block 0.00% dd [kernel] [k] btrfs_mark_buffer_dirty 0.00% dd [kernel] [k] clean_tree_block 0.00% dd [kernel] [k] btree_submit_bio_hook 0.00% dd [kernel] [k] wait_current_trans 0.00% dd [kernel] [k] btrfs_throttle 0.00% dd [kernel] [k] start_transaction 0.00% dd [kernel] [k] fill_inode_item 0.00% dd [kernel] [k] btrfs_update_inode 0.00% dd [kernel] [k] btrfs_dirty_inode 0.00% dd [kernel] [k] btrfs_create 0.00% dd [kernel] [k] btrfs_set_bit_hook 0.00% dd [kernel] [k] __tree_search 0.00% dd [kernel] [k] btrfs_item_offset 0.00% dd [kernel] [k] btrfs_set_key_blockptr 0.00% dd [kernel] [k] btrfs_set_inode_block_group 0.00% dd [kernel] [k] btrfs_set_inode_nbytes 0.00% dd [kernel] [k] btrfs_set_inode_sequence 0.00% dd [kernel] [k] free_extent_state 0.00% dd [kernel] [k] alloc_extent_state 0.00% dd [kernel] [k] spin_unlock 0.00% dd [kernel] [k] set_extent_dirty 0.00% dd [kernel] [k] memmove_extent_buffer 0.00% dd [kernel] [k] write_extent_buffer 0.00% dd [kernel] [k] alloc_extent_buffer 0.00% dd [kernel] [k] btrfs_map_bio 0.00% dd [kernel] [k] bitmap_clear_bits 0.00% dd [kernel] [k] find_ref_head 0.00% dd [kernel] [k] btrfs_find_delayed_ref_head 0.00% dd [kernel] [k] crypto_shash_update 0.00% dd [kernel] [k] chksum_update 0.00% dd [kernel] [k] req_bio_endio 0.00% dd [kernel] [k] blk_rq_init 0.00% dd [kernel] [k] blk_run_queue 0.00% dd [kernel] [k] get_request 0.00% dd [kernel] [k] cfq_idle_slice_timer 0.00% dd [kernel] [k] kref_put 0.00% dd [kernel] [k] prop_norm_single 0.00% dd [kernel] [k] prop_fraction_single 0.00% dd [kernel] [k] __rb_rotate_right 0.00% dd [kernel] [k] rb_next 0.00% dd [kernel] [k] rb_prev 0.00% dd [kernel] [k] __get_user_4 0.00% dd [kernel] [k] strncmp 0.00% dd [kernel] [k] _copy_from_user 0.00% dd [kernel] [k] crc32c 0.00% dd [kernel] [k] extract_buf 0.00% dd [kernel] [k] __scsi_put_command 0.00% dd [kernel] [k] scsi_handle_queue_ramp_up 0.00% dd [kernel] [k] scsi_decide_disposition 0.00% dd [kernel] [k] scsi_init_cmd_errh 0.00% dd [kernel] [k] scsi_sg_free 0.00% dd [kernel] [k] __scsi_release_buffers 0.00% dd [kernel] [k] scsi_softirq_done 0.00% dd [kernel] [k] sd_done 0.00% dd [kernel] [k] e100_disable_irq 0.00% dd [kernel] [k] acpi_pm_read 0.00% dd [kernel] [k] skb_pull 0.00% dd [kernel] [k] kfree_skb 0.00% dd [kernel] [k] eth_type_trans 0.00% dd [kernel] [k] tcp_v4_rcv 0.00% dd [kernel] [k] tpacket_rcv 0.00% dd [kernel] [k] mutex_unlock 0.00% dd [kernel] [k] error_code 0.00% dd [kernel] [k] usb_hcd_irq [usbcore] 0.00% dd /lib/libc-2.11.so [.] __GI_bsearch 0.00% dd /lib/libc-2.11.so [.] ptmalloc_init 0.00% dd /lib/libc-2.11.so [.] _getopt_internal_r 0.00% dd /lib/ld-2.11.so [.] _dl_start 0.00% dd /lib/ld-2.11.so [.] _dl_cache_libcmp 0.00% dd /lib/ld-2.11.so [.] _dl_unload_cache 0.00% dd /lib/ld-2.11.so [.] _dl_setup_hash 0.00% dd /lib/ld-2.11.so [.] _dl_relocate_object 0.00% dd /lib/ld-2.11.so [.] _dl_map_object_deps 0.00% dd /lib/ld-2.11.so [.] strcmp 0.00% dd /lib/ld-2.11.so [.] 0x0000000001943e 0.00% dd /bin/dd [.] main # # (For a higher level overview, try: perf report --sort comm,dso) # [-- Attachment #8: perf7.report --] [-- Type: text/plain, Size: 33242 bytes --] # Samples: 66514 # # Overhead Command Shared Object Symbol # ........ ....... ....................... ...... # 7.26% dd [kernel] [k] __copy_from_user_ll_nozero 5.20% dd [kernel] [k] __clear_user 4.47% dd [kernel] [k] get_page_from_freelist 4.40% dd [kernel] [k] __set_page_dirty 2.85% dd [kernel] [k] __block_prepare_write 2.61% dd [kernel] [k] ext4_da_write_begin 2.26% dd [kernel] [k] ext4_da_get_block_prep 1.94% dd [kernel] [k] ext4_da_write_end 1.93% dd [kernel] [k] ext4_mark_iloc_dirty 1.82% dd [kernel] [k] generic_file_buffered_write 1.54% dd [kernel] [k] kmem_cache_alloc 1.49% perf [kernel] [k] generic_file_buffered_write 1.45% dd [kernel] [k] __ext4_get_inode_loc 1.40% dd [kernel] [k] add_to_page_cache_locked 1.35% dd [kernel] [k] ext4_get_blocks 1.33% dd [kernel] [k] jbd2_journal_stop 1.22% dd [kernel] [k] T.1339 1.19% dd [kernel] [k] start_this_handle 1.13% dd [kernel] [k] generic_write_end 1.08% dd [kernel] [k] ext4_ext_get_blocks 1.07% dd [kernel] [k] __alloc_pages_nodemask 1.07% dd [kernel] [k] iov_iter_copy_from_user_atomic 1.06% dd [kernel] [k] ext4_has_free_blocks 1.04% dd [kernel] [k] ext4_ext_calc_metadata_amount 0.99% dd [kernel] [k] find_get_page 0.99% dd [kernel] [k] __rcu_read_unlock 0.94% perf [kernel] [k] __generic_file_aio_write 0.91% dd [kernel] [k] jbd2_journal_start 0.90% dd [kernel] [k] do_get_write_access 0.84% dd [kernel] [k] __wake_up 0.77% dd [kernel] [k] grab_cache_page_write_begin 0.76% dd [kernel] [k] __find_get_block 0.74% dd [kernel] [k] __block_commit_write 0.69% perf [kernel] [k] T.1339 0.69% dd [kernel] [k] __find_get_block_slow 0.68% dd [kernel] [k] __mark_inode_dirty 0.66% dd [kernel] [k] zone_watermark_ok 0.62% dd [kernel] [k] ____pagevec_lru_add 0.61% dd [kernel] [k] block_write_begin 0.60% dd [kernel] [k] iov_iter_fault_in_readable 0.60% dd [kernel] [k] ext4_mark_inode_dirty 0.59% dd [kernel] [k] alloc_page_buffers 0.57% dd [kernel] [k] block_write_end 0.55% dd [kernel] [k] iov_iter_advance 0.55% perf [kernel] [k] vfs_write 0.55% dd [kernel] [k] kmem_cache_free 0.54% dd [kernel] [k] jbd2_journal_dirty_metadata 0.51% dd [kernel] [k] __ext4_journal_stop 0.49% perf [kernel] [k] generic_file_aio_write 0.49% perf [kernel] [k] iov_iter_advance 0.49% dd [kernel] [k] balance_dirty_pages_ratelimited_nr 0.49% dd [kernel] [k] ext4_reserve_inode_write 0.49% dd [kernel] [k] spin_unlock 0.48% dd [kernel] [k] ext4_claim_free_blocks 0.48% perf [kernel] [k] iov_iter_copy_from_user_atomic 0.48% perf [kernel] [k] nobh_write_end 0.47% dd [kernel] [k] __getblk 0.46% dd [kernel] [k] jbd2_journal_add_journal_head 0.46% perf [kernel] [k] nobh_write_begin 0.46% dd [kernel] [k] alloc_buffer_head 0.45% perf [kernel] [k] __jfs_getxattr 0.45% perf [kernel] [k] sysenter_past_esp 0.45% dd [kernel] [k] create_empty_buffers 0.45% dd [kernel] [k] __lru_cache_add 0.45% dd [kernel] [k] read_zero 0.44% dd [kernel] [k] next_zones_zonelist 0.43% perf [kernel] [k] do_sync_write 0.43% dd [kernel] [k] radix_tree_lookup_slot 0.43% dd [kernel] [k] __ext4_handle_dirty_metadata 0.42% dd [kernel] [k] __rcu_read_lock 0.42% dd [kernel] [k] add_to_page_cache_lru 0.40% dd [kernel] [k] ext4_get_group_desc 0.39% perf [kernel] [k] find_get_page 0.39% dd [kernel] [k] __wake_up_bit 0.38% dd [kernel] [k] jbd2_journal_put_journal_head 0.38% dd [kernel] [k] __ext4_journal_get_write_access 0.37% perf [kernel] [k] generic_segment_checks 0.37% dd [kernel] [k] ext4_dirty_inode 0.36% perf [kernel] [k] rw_verify_area 0.35% perf [kernel] [k] getnstimeofday 0.35% dd [kernel] [k] put_page 0.35% dd [kernel] [k] mark_page_accessed 0.33% dd [kernel] [k] jbd2_journal_cancel_revoke 0.33% dd [kernel] [k] jbd2_journal_get_write_access 0.30% dd [kernel] [k] find_lock_page 0.30% dd [kernel] [k] usb_hcd_irq [usbcore] 0.30% perf [kernel] [k] sys_write 0.30% perf [kernel] [k] jfs_write_begin 0.30% perf [kernel] [k] acpi_pm_read 0.29% dd [kernel] [k] wake_up_bit 0.28% dd [kernel] [k] _cond_resched 0.27% dd [kernel] [k] ext4_journal_start_sb 0.27% dd [kernel] [k] radix_tree_preload 0.26% perf [kernel] [k] ea_get 0.26% perf [kernel] [k] copy_to_user 0.25% perf [kernel] [k] iov_iter_fault_in_readable 0.25% perf [kernel] [k] __rcu_read_unlock 0.24% perf [kernel] [k] __copy_from_user_ll_nozero 0.23% dd [kernel] [k] ehci_watchdog [ehci_hcd] 0.23% dd [kernel] [k] mark_buffer_dirty 0.23% dd [kernel] [k] ext4_inode_table 0.22% perf [kernel] [k] balance_dirty_pages_ratelimited_nr 0.21% dd [kernel] [k] schedule 0.21% perf [kernel] [k] fget_light 0.21% perf [kernel] [k] __mark_inode_dirty 0.21% perf [vdso] [.] 0x000000ffffe424 0.20% perf [kernel] [k] __set_page_dirty_buffers 0.19% dd [kernel] [k] do_page_fault 0.18% perf [kernel] [k] sys_gettimeofday 0.18% perf [kernel] [k] grab_cache_page_write_begin 0.18% perf [kernel] [k] xtSearch 0.17% dd [kernel] [k] unlock_page 0.17% perf [kernel] [k] put_page 0.16% perf [kernel] [k] fsnotify 0.16% perf [kernel] [k] schedule 0.15% dd [kernel] [k] down_read 0.15% dd [kernel] [k] unmap_underlying_metadata 0.14% dd [kernel] [k] rcu_sched_qs 0.14% perf [kernel] [k] extAlloc 0.14% perf [kernel] [k] kfree 0.14% perf [kernel] [k] generic_write_sync 0.14% perf [kernel] [k] inotify_inode_queue_event 0.14% perf [kernel] [k] dbAlloc 0.14% perf [kernel] [k] file_update_time 0.14% dd [kernel] [k] handle_IRQ_event 0.14% dd [kernel] [k] __page_cache_alloc 0.14% dd [kernel] [k] unmap_vmas 0.13% dd [kernel] [k] ext4_get_inode_loc 0.13% perf [kernel] [k] jfs_getxattr 0.13% dd [kernel] [k] handle_mm_fault 0.13% dd [kernel] [k] ext4_get_inode_flags 0.12% perf [kernel] [k] find_lock_page 0.12% perf [kernel] [k] radix_tree_lookup_slot 0.12% perf [kernel] [k] __rcu_read_lock 0.12% perf [kernel] [k] should_remove_suid 0.12% perf [kernel] [k] get_page_from_freelist 0.11% perf [kernel] [k] current_fs_time 0.11% perf [kernel] [k] __fsnotify_parent 0.11% perf [kernel] [k] inotify_dentry_parent_queue_event 0.11% perf [kernel] [k] ea_release 0.11% perf [kernel] [k] unlock_page 0.11% perf [kernel] [k] do_gettimeofday 0.10% perf [kernel] [k] file_remove_suid 0.10% dd [kernel] [k] set_bh_page 0.10% dd [kernel] [k] __jbd2_log_space_left 0.10% perf [kernel] [k] mark_page_accessed 0.10% perf [kernel] [k] cap_inode_need_killpriv 0.10% dd [kernel] [k] up_read 0.10% dd [kernel] [k] free_hot_cold_page 0.09% perf [kernel] [k] __set_page_dirty 0.09% dd [kernel] [k] __brelse 0.09% perf [kernel] [k] strncmp 0.09% perf [kernel] [k] __wake_up_bit 0.09% dd [kernel] [k] unlock_buffer 0.08% perf [kernel] [k] timespec_trunc 0.08% perf [kernel] [k] xtLookup 0.08% perf [kernel] [k] dbAllocBits 0.08% perf [kernel] [k] mutex_lock 0.08% perf [kernel] [k] current_kernel_time 0.08% perf [kernel] [k] jfs_dirty_inode 0.08% perf /home/cloos/bin/perf [.] __cmd_record 0.07% perf [kernel] [k] _cond_resched 0.07% perf [kernel] [k] __wake_up 0.07% perf [kernel] [k] cap_file_permission 0.07% perf [kernel] [k] strlen 0.07% dd [kernel] [k] sha_transform 0.07% perf [kernel] [k] __get_metapage 0.07% dd [kernel] [k] yenta_interrupt 0.06% perf [kernel] [k] dbAllocNext 0.06% perf [kernel] [k] set_page_dirty 0.06% dd [kernel] [k] __do_softirq 0.06% perf [kernel] [k] number 0.05% perf [kernel] [k] sysenter_do_call 0.05% perf [kernel] [k] jfs_get_block 0.05% perf [kernel] [k] xtExtend 0.05% perf [kernel] [k] vsnprintf 0.05% perf [kernel] [k] usb_hcd_irq [usbcore] 0.05% perf [kernel] [k] security_inode_need_killpriv 0.05% perf [kernel] [k] mutex_unlock 0.05% perf [kernel] [k] ehci_watchdog [ehci_hcd] 0.05% perf [kernel] [k] down_read 0.04% perf [kernel] [k] rcu_sched_qs 0.04% perf [kernel] [k] security_file_permission 0.04% perf [kernel] [k] up_read 0.04% perf [kernel] [k] release_metapage 0.04% dd [kernel] [k] release_pages 0.04% perf [kernel] [k] format_decode 0.04% dd [kernel] [k] __rcu_process_callbacks 0.04% dd [kernel] [k] get_pageblock_flags_group 0.03% perf [kernel] [k] copy_page_range 0.03% perf [kernel] [k] extHint 0.03% dd [kernel] [k] serio_interrupt 0.03% perf [kernel] [k] __do_fault 0.03% perf [kernel] [k] add_to_page_cache_locked 0.03% perf [kernel] [k] mnt_clone_write 0.03% perf [kernel] [k] __do_softirq 0.03% perf [kernel] [k] handle_IRQ_event 0.03% dd [kernel] [k] find_vma 0.03% perf [kernel] [k] __alloc_pages_nodemask 0.03% perf [kernel] [k] mangle_path 0.03% perf [kernel] [k] dbAllocDmap 0.03% perf [kernel] [k] do_page_fault 0.03% dd [kernel] [k] __do_fault 0.02% perf [kernel] [k] txLock 0.02% dd [kernel] [k] preempt_schedule 0.02% perf [kernel] [k] mnt_drop_write 0.02% perf [kernel] [k] read_cache_page 0.02% perf [kernel] [k] txBeginAnon 0.02% dd [kernel] [k] check_for_new_grace_period 0.02% dd [kernel] [k] page_add_new_anon_rmap 0.02% dd [kernel] [k] anon_vma_prepare 0.02% dd [kernel] [k] scsi_dispatch_cmd 0.02% dd [kernel] [k] irq_handler 0.02% perf [kernel] [k] __find_get_block_slow 0.02% dd [kernel] [k] page_evictable 0.02% perf [kernel] [k] ____pagevec_lru_add 0.02% perf [kernel] [k] dbSplit 0.02% dd [kernel] [k] try_to_wake_up 0.02% dd [kernel] [k] down_read_trylock 0.02% dd [kernel] [k] page_remove_rmap 0.02% dd [kernel] [k] mdio_ctrl_hw 0.02% perf [kernel] [k] alloc_buffer_head 0.02% dd [kernel] [k] rcu_process_gp_end 0.02% perf [kernel] [k] do_read_cache_page 0.02% perf [kernel] [k] read_cache_page_async 0.02% perf [kernel] [k] free_buffer_head 0.01% perf [kernel] [k] inode_add_bytes 0.01% perf [kernel] [k] mnt_want_write_file 0.01% perf [kernel] [k] scsi_dispatch_cmd 0.01% perf [kernel] [k] yenta_interrupt 0.01% perf /lib/libpthread-2.11.so [.] __libc_write 0.01% dd [kernel] [k] filemap_fault 0.01% perf [kernel] [k] zone_watermark_ok 0.01% perf [kernel] [k] __set_page_dirty_nobuffers 0.01% perf [kernel] [k] next_zones_zonelist 0.01% perf [kernel] [k] kmem_cache_free 0.01% perf [kernel] [k] kmem_cache_alloc 0.01% dd [kernel] [k] vm_normal_page 0.01% dd [kernel] [k] free_page_and_swap_cache 0.01% perf [kernel] [k] find_vma 0.01% perf [kernel] [k] seq_printf 0.01% perf [kernel] [k] dbAdjTree 0.01% perf /lib/libc-2.11.so [.] __GI___gettimeofday_internal 0.01% dd [kernel] [k] copy_strings 0.01% dd [kernel] [k] blk_end_bidi_request 0.01% dd [kernel] [k] strnlen_user 0.01% perf [kernel] [k] handle_mm_fault 0.01% perf [kernel] [k] alloc_page_buffers 0.01% perf [kernel] [k] radix_tree_preload 0.01% dd [kernel] [k] scsi_request_fn 0.01% perf [kernel] [k] perf_mmap_fault 0.01% perf [kernel] [k] activate_page 0.01% perf [kernel] [k] __lru_cache_add 0.01% perf [kernel] [k] do_sys_poll 0.01% perf [kernel] [k] scsi_request_fn 0.01% perf [kernel] [k] irq_handler 0.01% dd [kernel] [k] __generic_file_aio_write 0.01% dd [kernel] [k] mix_pool_bytes_extract 0.01% dd [kernel] [k] i8042_interrupt 0.01% perf [kernel] [k] up_write 0.01% perf [kernel] [k] set_bh_page 0.01% perf [kernel] [k] spin_unlock 0.01% perf [kernel] [k] rb_insert_color 0.01% perf [kernel] [k] down_write 0.01% dd [kernel] [k] run_timer_softirq 0.01% dd [kernel] [k] hrtimer_peek_ahead_timers 0.01% dd [kernel] [k] free_hot_page 0.01% dd [kernel] [k] do_wp_page 0.01% dd [kernel] [k] _atomic_dec_and_lock 0.01% dd [kernel] [k] ioread8 0.01% dd /lib/ld-2.11.so [.] do_lookup_x 0.01% dd b6ffe590 [.] 0x000000b6ffe590 0.00% perf [kernel] [k] __queue_work 0.00% perf [kernel] [k] wait_on_page_read 0.00% perf [kernel] [k] do_wp_page 0.00% perf [kernel] [k] strchr 0.00% perf /home/cloos/bin/perf [.] pid_synthesize_mmap_samples 0.00% dd [kernel] [k] __queue_work 0.00% dd [kernel] [k] rcu_process_callbacks 0.00% dd [kernel] [k] get_dirty_limits 0.00% dd [kernel] [k] __vma_link 0.00% dd [kernel] [k] do_mmap_pgoff 0.00% dd [kernel] [k] kmem_cache_alloc_notrace 0.00% dd [kernel] [k] do_sync_write 0.00% dd [kernel] [k] fget_light 0.00% dd [kernel] [k] get_empty_filp 0.00% dd [kernel] [k] do_filp_open 0.00% dd [kernel] [k] inotify_inode_queue_event 0.00% dd [kernel] [k] load_elf_binary 0.00% dd [kernel] [k] scsi_softirq_done 0.00% perf [kernel] [k] arch_dup_task_struct 0.00% perf [kernel] [k] try_to_wake_up 0.00% perf [kernel] [k] copy_process 0.00% perf [kernel] [k] remove_wait_queue 0.00% perf [kernel] [k] down_read_trylock 0.00% perf [kernel] [k] ktime_get_ts 0.00% perf [kernel] [k] perf_poll 0.00% perf [kernel] [k] add_to_page_cache_lru 0.00% perf [kernel] [k] filemap_fault 0.00% perf [kernel] [k] get_dirty_limits 0.00% perf [kernel] [k] test_clear_page_writeback 0.00% perf [kernel] [k] mmap_region 0.00% perf [kernel] [k] prepend 0.00% perf [kernel] [k] spin_unlock 0.00% perf [kernel] [k] seq_read 0.00% perf [kernel] [k] proc_pid_status 0.00% perf [kernel] [k] xtInsert 0.00% perf [kernel] [k] put_dec_trunc 0.00% perf [kernel] [k] ip_local_deliver 0.00% perf /lib/libpthread-2.11.so [.] __write_nocancel 0.00% dd [kernel] [k] sysenter_past_esp 0.00% dd [kernel] [k] __call_rcu 0.00% dd [kernel] [k] lru_cache_add_lru 0.00% dd [kernel] [k] free_pgd_range 0.00% dd [kernel] [k] free_pgtables 0.00% dd [kernel] [k] unlink_file_vma 0.00% dd [kernel] [k] mmap_region 0.00% dd [kernel] [k] vfs_read 0.00% dd [kernel] [k] path_put 0.00% dd [kernel] [k] do_lookup 0.00% dd [kernel] [k] link_path_walk 0.00% dd [kernel] [k] __d_lookup 0.00% dd [kernel] [k] security_file_permission 0.00% dd [kernel] [k] prio_tree_replace 0.00% dd [kernel] [k] rb_insert_color 0.00% dd [kernel] [k] _copy_from_user 0.00% dd [kernel] [k] error_code 0.00% dd /lib/libc-2.11.so [.] _nl_load_locale_from_archive 0.00% dd /lib/libc-2.11.so [.] _IO_fclose@@GLIBC_2.1 0.00% dd /lib/libc-2.11.so [.] 0x000000000a1877 0.00% dd /lib/libc-2.11.so [.] _dl_addr 0.00% dd /bin/dd [.] T.275 0.00% perf [kernel] [k] pgd_alloc 0.00% perf [kernel] [k] wake_up_new_task 0.00% perf [kernel] [k] alloc_pid 0.00% perf [kernel] [k] __mutex_init 0.00% perf [kernel] [k] __hrtimer_start_range_ns 0.00% perf [kernel] [k] mempool_free_slab 0.00% perf [kernel] [k] release_pages 0.00% perf [kernel] [k] vma_prio_tree_add 0.00% perf [kernel] [k] unmap_vmas 0.00% perf [kernel] [k] __vma_link_rb 0.00% perf [kernel] [k] anon_vma_unlink 0.00% perf [kernel] [k] fd_install 0.00% perf [kernel] [k] path_get 0.00% perf [kernel] [k] generic_permission 0.00% perf [kernel] [k] do_lookup 0.00% perf [kernel] [k] link_path_walk 0.00% perf [kernel] [k] estimate_accuracy 0.00% perf [kernel] [k] poll_select_set_timeout 0.00% perf [kernel] [k] __pollwait 0.00% perf [kernel] [k] __d_path 0.00% perf [kernel] [k] d_instantiate 0.00% perf [kernel] [k] __d_lookup 0.00% perf [kernel] [k] dput 0.00% perf [kernel] [k] seq_path 0.00% perf [kernel] [k] end_bio_bh_io_sync 0.00% perf [kernel] [k] unmap_underlying_metadata 0.00% perf [kernel] [k] bio_fs_destructor 0.00% perf [kernel] [k] show_map_vma 0.00% perf [kernel] [k] m_start 0.00% perf [kernel] [k] proc_pid_make_inode 0.00% perf [kernel] [k] render_sigset_t 0.00% perf [kernel] [k] dbFindCtl 0.00% perf [kernel] [k] dbAllocAG 0.00% perf [kernel] [k] security_vm_enough_memory 0.00% perf [kernel] [k] req_bio_endio 0.00% perf [kernel] [k] blk_end_bidi_request 0.00% perf [kernel] [k] get_request 0.00% perf [kernel] [k] __make_request 0.00% perf [kernel] [k] _atomic_dec_and_lock 0.00% perf [kernel] [k] prop_fraction_percpu 0.00% perf [kernel] [k] __rb_rotate_left 0.00% perf [kernel] [k] put_dec 0.00% perf [kernel] [k] ioread8 0.00% perf [kernel] [k] scsi_finish_command 0.00% perf [kernel] [k] scsi_put_command 0.00% perf [kernel] [k] __scsi_release_buffers 0.00% perf [kernel] [k] ata_sff_interrupt 0.00% perf [kernel] [k] serio_interrupt 0.00% perf [kernel] [k] __skb_clone 0.00% perf [kernel] [k] preempt_schedule 0.00% perf [kernel] [k] schedule_hrtimeout_range 0.00% perf [kernel] [k] error_code 0.00% perf /lib/libc-2.11.so [.] fgets 0.00% perf /lib/libc-2.11.so [.] __GI___open 0.00% perf /lib/libc-2.11.so [.] __libc_poll 0.00% perf /home/cloos/bin/perf [.] geteuid@plt 0.00% dd [kernel] [k] nommu_sync_single_for_device 0.00% dd [kernel] [k] sys_execve 0.00% dd [kernel] [k] sched_move_task 0.00% dd [kernel] [k] unshare_fd 0.00% dd [kernel] [k] mm_init 0.00% dd [kernel] [k] flush_signal_handlers 0.00% dd [kernel] [k] spin_unlock_irq 0.00% dd [kernel] [k] flush_itimer_signals 0.00% dd [kernel] [k] sigprocmask 0.00% dd [kernel] [k] task_tgid_nr_ns 0.00% dd [kernel] [k] __task_pid_nr_ns 0.00% dd [kernel] [k] __blocking_notifier_call_chain 0.00% dd [kernel] [k] acct_collect 0.00% dd [kernel] [k] perf_output_begin 0.00% dd [kernel] [k] perf_event_comm 0.00% dd [kernel] [k] generic_segment_checks 0.00% dd [kernel] [k] file_read_actor 0.00% dd [kernel] [k] generic_file_aio_read 0.00% dd [kernel] [k] generic_file_aio_write 0.00% dd [kernel] [k] mempool_free_slab 0.00% dd [kernel] [k] file_ra_state_init 0.00% dd [kernel] [k] global_reclaimable_pages 0.00% dd [kernel] [k] vma_prio_tree_remove 0.00% dd [kernel] [k] arch_get_unmapped_area_topdown 0.00% dd [kernel] [k] __vma_link_rb 0.00% dd [kernel] [k] vma_link 0.00% dd [kernel] [k] vma_adjust 0.00% dd [kernel] [k] sys_brk 0.00% dd [kernel] [k] exit_mmap 0.00% dd [kernel] [k] mprotect_fixup 0.00% dd [kernel] [k] __anon_vma_link 0.00% dd [kernel] [k] anon_vma_unlink 0.00% dd [kernel] [k] __dentry_open 0.00% dd [kernel] [k] nameidata_to_filp 0.00% dd [kernel] [k] rw_verify_area 0.00% dd [kernel] [k] vfs_write 0.00% dd [kernel] [k] fget 0.00% dd [kernel] [k] vfs_fstat 0.00% dd [kernel] [k] do_execve 0.00% dd [kernel] [k] acl_permission_check 0.00% dd [kernel] [k] exec_permission 0.00% dd [kernel] [k] generic_permission 0.00% dd [kernel] [k] inode_permission 0.00% dd [kernel] [k] path_walk 0.00% dd [kernel] [k] __d_path 0.00% dd [kernel] [k] file_update_time 0.00% dd [kernel] [k] expand_files 0.00% dd [kernel] [k] mnt_drop_write 0.00% dd [kernel] [k] mntput_no_expire 0.00% dd [kernel] [k] mpage_end_io_read 0.00% dd [kernel] [k] dnotify_flush 0.00% dd [kernel] [k] added_exe_file_vma 0.00% dd [kernel] [k] ext4_check_dir_entry 0.00% dd [kernel] [k] ext4_new_inode 0.00% dd [kernel] [k] ext4_ind_get_blocks 0.00% dd [kernel] [k] is_file_shm_hugepages 0.00% dd [kernel] [k] security_vm_enough_memory_mm 0.00% dd [kernel] [k] cap_inode_permission 0.00% dd [kernel] [k] cap_file_permission 0.00% dd [kernel] [k] blk_update_request 0.00% dd [kernel] [k] blk_update_bidi_request 0.00% dd [kernel] [k] blk_done_softirq 0.00% dd [kernel] [k] find_next_zero_bit 0.00% dd [kernel] [k] kobject_get 0.00% dd [kernel] [k] prio_tree_insert 0.00% dd [kernel] [k] prop_norm_percpu 0.00% dd [kernel] [k] prop_fraction_single 0.00% dd [kernel] [k] __rb_rotate_left 0.00% dd [kernel] [k] __rb_rotate_right 0.00% dd [kernel] [k] rb_erase 0.00% dd [kernel] [k] rwsem_wake 0.00% dd [kernel] [k] csum_partial 0.00% dd [kernel] [k] __get_user_4 0.00% dd [kernel] [k] copy_to_user 0.00% dd [kernel] [k] half_md4_transform 0.00% dd [kernel] [k] tty_wakeup 0.00% dd [kernel] [k] tty_write 0.00% dd [kernel] [k] tty_insert_flip_string 0.00% dd [kernel] [k] scsi_finish_command 0.00% dd [kernel] [k] __scsi_release_buffers 0.00% dd [kernel] [k] scsi_io_completion 0.00% dd [kernel] [k] ata_sff_interrupt 0.00% dd [kernel] [k] e100_exec_cb 0.00% dd [kernel] [k] e100_disable_irq 0.00% dd [kernel] [k] e100_intr 0.00% dd [kernel] [k] e100_poll 0.00% dd [kernel] [k] acpi_pm_read 0.00% dd [kernel] [k] __copy_skb_header 0.00% dd [kernel] [k] __kfree_skb 0.00% dd [kernel] [k] napi_gro_flush 0.00% dd [kernel] [k] net_rx_action 0.00% dd [kernel] [k] sk_run_filter 0.00% dd [kernel] [k] tcp_ack 0.00% dd [kernel] [k] tcp_rcv_established 0.00% dd [kernel] [k] tcp_established_options 0.00% dd [kernel] [k] ret_from_exception 0.00% dd [kernel] [k] system_call 0.00% dd /lib/libc-2.11.so [.] __GI_getenv 0.00% dd /lib/libc-2.11.so [.] _int_malloc 0.00% dd /lib/libc-2.11.so [.] index 0.00% dd /lib/libc-2.11.so [.] __GI___stpcpy 0.00% dd /lib/ld-2.11.so [.] dl_main 0.00% dd /lib/ld-2.11.so [.] check_match.8476 0.00% dd /lib/ld-2.11.so [.] _dl_fixup 0.00% dd /lib/ld-2.11.so [.] _dl_debug_initialize 0.00% dd /lib/ld-2.11.so [.] __mmap 0.00% dd /lib/ld-2.11.so [.] 0x0000000001943e 0.00% dd /bin/dd [.] iread 0.00% dd /bin/dd [.] set_program_name # # (For a higher level overview, try: perf report --sort comm,dso) # [-- Attachment #9: perf8.report --] [-- Type: text/plain, Size: 24418 bytes --] # Samples: 24816 # # Overhead Command Shared Object Symbol # ........ ....... ....................... ...... # 15.90% dd [kernel] [k] __copy_to_user_ll 7.04% perf [kernel] [k] generic_file_buffered_write 4.47% perf [kernel] [k] __generic_file_aio_write 2.28% perf [kernel] [k] sysenter_past_esp 2.28% perf [kernel] [k] iov_iter_advance 2.26% perf [kernel] [k] generic_file_aio_write 2.19% perf [kernel] [k] __jfs_getxattr 2.15% perf [kernel] [k] nobh_write_end 2.15% perf [kernel] [k] nobh_write_begin 2.10% perf [kernel] [k] do_sync_write 2.07% perf [kernel] [k] iov_iter_copy_from_user_atomic 2.04% perf [kernel] [k] vfs_write 1.91% perf [kernel] [k] getnstimeofday 1.82% perf [kernel] [k] find_get_page 1.66% perf [kernel] [k] generic_segment_checks 1.61% perf [kernel] [k] ea_get 1.58% perf [kernel] [k] rw_verify_area 1.37% perf [kernel] [k] jfs_write_begin 1.34% dd [kernel] [k] __bio_add_page 1.31% perf [kernel] [k] copy_to_user 1.18% perf [kernel] [k] balance_dirty_pages_ratelimited_nr 1.17% perf [kernel] [k] sys_write 1.16% perf [kernel] [k] iov_iter_fault_in_readable 1.10% perf [vdso] [.] 0x000000ffffe424 1.06% dd [kernel] [k] get_page_from_freelist 1.02% perf [kernel] [k] fget_light 0.96% perf [kernel] [k] acpi_pm_read 0.93% perf [kernel] [k] sys_gettimeofday 0.93% perf [kernel] [k] grab_cache_page_write_begin 0.85% perf [kernel] [k] __set_page_dirty_buffers 0.84% perf [kernel] [k] __mark_inode_dirty 0.82% dd [kernel] [k] __blk_recalc_rq_segments 0.80% perf [kernel] [k] fsnotify 0.77% perf [kernel] [k] kfree 0.73% perf [kernel] [k] file_update_time 0.69% perf [kernel] [k] inotify_inode_queue_event 0.67% perf [kernel] [k] generic_write_sync 0.67% perf [kernel] [k] __copy_from_user_ll_nozero 0.66% perf [kernel] [k] inotify_dentry_parent_queue_event 0.65% perf [kernel] [k] put_page 0.64% dd [kernel] [k] __make_request 0.63% perf [kernel] [k] jfs_getxattr 0.62% perf [kernel] [k] do_gettimeofday 0.60% perf [kernel] [k] find_lock_page 0.59% perf [kernel] [k] __rcu_read_unlock 0.56% perf [kernel] [k] radix_tree_lookup_slot 0.54% perf [kernel] [k] __fsnotify_parent 0.54% perf [kernel] [k] ea_release 0.53% perf [kernel] [k] strncmp 0.52% perf [kernel] [k] file_remove_suid 0.51% perf [kernel] [k] unlock_page 0.50% perf [kernel] [k] timespec_trunc 0.47% perf [kernel] [k] T.1339 0.47% perf [kernel] [k] current_fs_time 0.46% perf [kernel] [k] cap_inode_need_killpriv 0.45% perf /home/cloos/bin/perf [.] __cmd_record 0.45% perf [kernel] [k] should_remove_suid 0.42% perf [kernel] [k] schedule 0.41% perf [kernel] [k] strlen 0.38% dd [kernel] [k] usb_hcd_irq [usbcore] 0.36% perf [kernel] [k] current_kernel_time 0.36% perf [kernel] [k] _cond_resched 0.35% dd [kernel] [k] do_mpage_readpage 0.34% perf [kernel] [k] jfs_dirty_inode 0.33% perf [kernel] [k] mark_page_accessed 0.33% dd [kernel] [k] get_request 0.31% perf [kernel] [k] __rcu_read_lock 0.30% perf [kernel] [k] cap_file_permission 0.29% perf [kernel] [k] set_page_dirty 0.27% perf [kernel] [k] mutex_lock 0.27% perf [kernel] [k] __wake_up_bit 0.27% perf [kernel] [k] down_read 0.22% perf [kernel] [k] up_read 0.22% perf [kernel] [k] security_file_permission 0.22% perf [kernel] [k] mutex_unlock 0.21% dd [kernel] [k] blk_rq_init 0.20% dd [kernel] [k] yenta_interrupt 0.20% perf [kernel] [k] security_inode_need_killpriv 0.19% perf [kernel] [k] sysenter_do_call 0.19% dd [kernel] [k] acpi_pm_read 0.17% perf [kernel] [k] vsnprintf 0.17% dd [kernel] [k] add_to_page_cache_locked 0.16% dd [kernel] [k] generic_make_request 0.15% dd [kernel] [k] generic_file_aio_read 0.15% perf [kernel] [k] extAlloc 0.15% dd [kernel] [k] T.1339 0.12% perf [kernel] [k] number 0.12% perf [kernel] [k] dbAlloc 0.12% perf [kernel] [k] usb_hcd_irq [usbcore] 0.12% dd [kernel] [k] bio_add_page 0.12% dd [kernel] [k] radix_tree_lookup_slot 0.11% perf [kernel] [k] format_decode 0.11% dd [kernel] [k] handle_IRQ_event 0.11% dd [kernel] [k] irq_handler 0.10% dd [kernel] [k] file_read_actor 0.10% dd [kernel] [k] kmem_cache_alloc 0.10% dd [kernel] [k] init_request_from_bio 0.10% perf [kernel] [k] xtSearch 0.10% dd [kernel] [k] __alloc_pages_nodemask 0.09% perf [kernel] [k] mnt_drop_write 0.09% perf [kernel] [k] mnt_clone_write 0.09% dd [kernel] [k] find_get_page 0.08% perf [kernel] [k] copy_page_range 0.08% perf [kernel] [k] __set_page_dirty 0.08% perf [kernel] [k] ehci_watchdog [ehci_hcd] 0.07% dd [kernel] [k] blk_rq_bio_prep 0.07% dd [kernel] [k] radix_tree_lookup 0.07% perf [kernel] [k] do_sys_poll 0.07% dd [kernel] [k] ____pagevec_lru_add 0.06% perf [kernel] [k] handle_IRQ_event 0.06% perf [kernel] [k] get_page_from_freelist 0.06% perf [kernel] [k] dbAllocBits 0.06% perf /lib/libc-2.11.so [.] __GI___gettimeofday_internal 0.06% dd [kernel] [k] ext4_get_blocks 0.06% perf [kernel] [k] hrtimer_try_to_cancel 0.06% perf [kernel] [k] xtLookup 0.06% dd [kernel] [k] put_page 0.06% dd [kernel] [k] ext4_ext_get_blocks 0.06% dd [kernel] [k] cfq_set_request 0.06% perf [kernel] [k] __wake_up 0.06% dd [kernel] [k] ondemand_readahead 0.05% perf [kernel] [k] do_page_fault 0.05% dd [kernel] [k] __rcu_read_unlock 0.05% dd [kernel] [k] __lru_cache_add 0.05% dd [kernel] [k] mpage_readpages 0.05% dd [kernel] [k] do_page_fault 0.05% perf /lib/libpthread-2.11.so [.] __libc_write 0.05% dd [kernel] [k] handle_mm_fault 0.05% dd [kernel] [k] radix_tree_preload 0.04% perf [kernel] [k] extHint 0.04% perf [kernel] [k] yenta_interrupt 0.04% dd [kernel] [k] __lock_page_killable 0.04% dd [kernel] [k] __do_page_cache_readahead 0.04% dd [kernel] [k] submit_bio 0.04% dd [kernel] [k] zone_watermark_ok 0.04% dd [kernel] [k] bio_init 0.04% dd [kernel] [k] scsi_dispatch_cmd 0.04% perf [kernel] [k] __hrtimer_start_range_ns 0.04% perf [kernel] [k] add_to_page_cache_locked 0.04% perf [kernel] [k] __do_fault 0.04% dd [kernel] [k] prepare_to_wait_exclusive 0.04% dd [kernel] [k] __rcu_read_lock 0.04% dd [kernel] [k] add_to_page_cache_lru 0.04% dd [kernel] [k] page_cache_async_readahead 0.04% dd [kernel] [k] unmap_vmas 0.04% dd [kernel] [k] scsi_request_fn 0.03% perf [kernel] [k] kmem_cache_alloc 0.03% perf [kernel] [k] mnt_want_write_file 0.03% perf /lib/libpthread-2.11.so [.] __write_nocancel 0.03% dd [kernel] [k] free_hot_cold_page 0.03% dd [kernel] [k] next_zones_zonelist 0.03% dd [kernel] [k] ext4_data_block_valid 0.03% dd [kernel] [k] ioread8 0.03% perf [kernel] [k] __find_get_block_slow 0.03% perf [kernel] [k] jfs_get_block 0.03% perf [kernel] [k] dbAllocDmap 0.03% perf [kernel] [k] dbAllocNext 0.03% perf [kernel] [k] __get_metapage 0.03% perf /lib/libc-2.11.so [.] __libc_poll 0.03% dd [kernel] [k] sync_page 0.03% dd [kernel] [k] mark_page_accessed 0.03% dd [kernel] [k] bio_alloc_bioset 0.03% dd [kernel] [k] blk_backing_dev_unplug 0.02% perf [kernel] [k] do_wp_page 0.02% perf [kernel] [k] show_map_vma 0.02% perf [kernel] [k] schedule_hrtimeout_range 0.02% dd [kernel] [k] mempool_alloc_slab 0.02% dd [kernel] [k] block_sync_page 0.02% dd [kernel] [k] mpage_alloc 0.02% dd [kernel] [k] get_io_context 0.02% perf [kernel] [k] __do_softirq 0.02% perf [kernel] [k] add_to_page_cache_lru 0.02% perf [kernel] [k] __lru_cache_add 0.02% perf [kernel] [k] poll_schedule_timeout 0.02% perf [kernel] [k] prepend 0.02% perf [kernel] [k] xtExtend 0.02% perf [kernel] [k] release_metapage 0.02% dd [kernel] [k] __do_softirq 0.02% dd [kernel] [k] ktime_get_ts 0.02% dd [kernel] [k] ra_submit 0.02% dd [kernel] [k] __do_fault 0.02% dd [kernel] [k] blk_queue_bounce 0.02% dd [kernel] [k] mdio_ctrl_hw 0.02% dd [kernel] [k] __wait_on_bit_lock 0.02% dd [kernel] [k] down_read 0.02% perf [kernel] [k] ktime_get_ts 0.02% perf [kernel] [k] perf_poll 0.02% perf [kernel] [k] handle_mm_fault 0.02% perf [kernel] [k] poll_freewait 0.02% perf [kernel] [k] d_path 0.02% dd [kernel] [k] __delayacct_blkio_end 0.02% dd [kernel] [k] mempool_alloc 0.02% dd [kernel] [k] release_pages 0.02% dd [kernel] [k] bio_get_nr_vecs 0.02% dd [kernel] [k] bio_phys_segments 0.02% dd [kernel] [k] current_io_context 0.02% dd [kernel] [k] blk_recount_segments 0.02% dd [kernel] [k] io_schedule 0.01% perf [kernel] [k] remove_wait_queue 0.01% perf [kernel] [k] rcu_sched_qs 0.01% perf [kernel] [k] __alloc_pages_nodemask 0.01% perf [kernel] [k] find_vma 0.01% perf [kernel] [k] __pollwait 0.01% perf [kernel] [k] sys_poll 0.01% perf [kernel] [k] dbAdjTree 0.01% perf [kernel] [k] spin_unlock 0.01% perf [kernel] [k] txBeginAnon 0.01% perf [kernel] [k] strchr 0.01% perf [kernel] [k] scsi_dispatch_cmd 0.01% perf /home/cloos/bin/perf [.] pid_synthesize_mmap_samples 0.01% dd [kernel] [k] set_normalized_timespec 0.01% dd [kernel] [k] __delayacct_blkio_start 0.01% dd [kernel] [k] bio_alloc 0.01% dd [kernel] [k] elv_set_request 0.01% dd [kernel] [k] blk_unplug 0.01% dd [kernel] [k] generic_unplug_device 0.01% dd [kernel] [k] ata_sff_interrupt 0.01% dd [kernel] [k] _cond_resched 0.01% perf [kernel] [k] add_wait_queue 0.01% perf [kernel] [k] hrtimer_init 0.01% perf [kernel] [k] hrtimer_start_range_ns 0.01% perf [kernel] [k] rcu_process_gp_end 0.01% perf [kernel] [k] zone_watermark_ok 0.01% perf [kernel] [k] __set_page_dirty_nobuffers 0.01% perf [kernel] [k] ____pagevec_lru_add 0.01% perf [kernel] [k] poll_select_set_timeout 0.01% perf [kernel] [k] free_poll_entry 0.01% perf [kernel] [k] __d_path 0.01% perf [kernel] [k] dbSplit 0.01% perf [kernel] [k] txLock 0.01% perf [kernel] [k] scsi_request_fn 0.01% perf [kernel] [k] ata_sff_interrupt 0.01% perf [kernel] [k] down_write 0.01% dd [kernel] [k] __wake_up 0.01% dd [kernel] [k] sync_page_killable 0.01% dd [kernel] [k] lru_cache_add_lru 0.01% dd [kernel] [k] bvec_alloc_bs 0.01% dd [kernel] [k] ext4_get_block 0.01% dd [kernel] [k] blk_update_request 0.01% dd [kernel] [k] blk_end_bidi_request 0.01% dd [kernel] [k] cfq_cic_lookup 0.01% dd [kernel] [k] schedule 0.01% dd /lib/libc-2.11.so [.] _dl_addr 0.01% dd /lib/ld-2.11.so [.] do_lookup_x 0.01% dd /lib/ld-2.11.so [.] _dl_lookup_symbol_x 0.00% perf [kernel] [k] get_gate_vma 0.00% perf [kernel] [k] wake_up_new_task 0.00% perf [kernel] [k] __wake_up_sync_key 0.00% perf [kernel] [k] dup_mm 0.00% perf [kernel] [k] copy_process 0.00% perf [kernel] [k] set_normalized_timespec 0.00% perf [kernel] [k] hrtimer_cancel 0.00% perf [kernel] [k] down_read_trylock 0.00% perf [kernel] [k] spin_unlock_irqrestore 0.00% perf [kernel] [k] __rcu_process_callbacks 0.00% perf [kernel] [k] perf_mmap_fault 0.00% perf [kernel] [k] perf_event_init_task 0.00% perf [kernel] [k] do_read_cache_page 0.00% perf [kernel] [k] read_cache_page_async 0.00% perf [kernel] [k] read_cache_page 0.00% perf [kernel] [k] determine_dirtyable_memory 0.00% perf [kernel] [k] get_dirty_limits 0.00% perf [kernel] [k] lru_cache_add_lru 0.00% perf [kernel] [k] vma_prio_tree_add 0.00% perf [kernel] [k] next_zones_zonelist 0.00% perf [kernel] [k] unmap_vmas 0.00% perf [kernel] [k] __vm_enough_memory 0.00% perf [kernel] [k] unlink_file_vma 0.00% perf [kernel] [k] page_add_file_rmap 0.00% perf [kernel] [k] reuse_swap_page 0.00% perf [kernel] [k] kmem_cache_free 0.00% perf [kernel] [k] kmem_cache_alloc_notrace 0.00% perf [kernel] [k] sys_lseek 0.00% perf [kernel] [k] fput 0.00% perf [kernel] [k] generic_fillattr 0.00% perf [kernel] [k] cp_new_stat64 0.00% perf [kernel] [k] path_get 0.00% perf [kernel] [k] d_alloc 0.00% perf [kernel] [k] __d_instantiate 0.00% perf [kernel] [k] __d_lookup 0.00% perf [kernel] [k] dput 0.00% perf [kernel] [k] expand_files 0.00% perf [kernel] [k] seq_release_private 0.00% perf [kernel] [k] mangle_path 0.00% perf [kernel] [k] seq_path 0.00% perf [kernel] [k] seq_printf 0.00% perf [kernel] [k] writeback_in_progress 0.00% perf [kernel] [k] free_buffer_head 0.00% perf [kernel] [k] alloc_buffer_head 0.00% perf [kernel] [k] alloc_page_buffers 0.00% perf [kernel] [k] dnotify_flush 0.00% perf [kernel] [k] proc_lookup_de 0.00% perf [kernel] [k] proc_pid_status 0.00% perf [kernel] [k] metapage_get_blocks 0.00% perf [kernel] [k] blk_end_bidi_request 0.00% perf [kernel] [k] get_io_context 0.00% perf [kernel] [k] prop_norm_percpu 0.00% perf [kernel] [k] prop_fraction_percpu 0.00% perf [kernel] [k] __rb_rotate_left 0.00% perf [kernel] [k] rb_insert_color 0.00% perf [kernel] [k] put_dec_trunc 0.00% perf [kernel] [k] put_dec 0.00% perf [kernel] [k] csum_partial 0.00% perf [kernel] [k] credit_entropy_bits 0.00% perf [kernel] [k] scsi_decide_disposition 0.00% perf [kernel] [k] scsi_init_cmd_errh 0.00% perf [kernel] [k] e100_intr 0.00% perf [kernel] [k] e100_enable_irq 0.00% perf [kernel] [k] e100_poll 0.00% perf [kernel] [k] irq_handler 0.00% perf [kernel] [k] i8042_interrupt 0.00% perf [kernel] [k] ip_queue_xmit 0.00% perf [kernel] [k] tcp_sync_mss 0.00% perf [kernel] [k] fib6_age 0.00% perf [kernel] [k] io_schedule 0.00% perf [kernel] [k] preempt_schedule_irq 0.00% perf /lib/libc-2.11.so [.] __fopen_internal 0.00% perf /lib/libc-2.11.so [.] _IO_getline_info 0.00% perf /lib/ld-2.11.so [.] do_lookup_x 0.00% perf /lib/ld-2.11.so [.] _dl_fixup 0.00% perf /home/cloos/bin/perf [.] exit@plt 0.00% dd [kernel] [k] sysenter_past_esp 0.00% dd [kernel] [k] do_exit 0.00% dd [kernel] [k] put_cred_rcu 0.00% dd [kernel] [k] prepare_creds 0.00% dd [kernel] [k] current_kernel_time 0.00% dd [kernel] [k] check_for_new_grace_period 0.00% dd [kernel] [k] rcu_sched_qs 0.00% dd [kernel] [k] __rcu_process_callbacks 0.00% dd [kernel] [k] filemap_fault 0.00% dd [kernel] [k] vma_prio_tree_add 0.00% dd [kernel] [k] find_vma 0.00% dd [kernel] [k] unmap_region 0.00% dd [kernel] [k] mmap_region 0.00% dd [kernel] [k] page_remove_rmap 0.00% dd [kernel] [k] page_add_new_anon_rmap 0.00% dd [kernel] [k] anon_vma_prepare 0.00% dd [kernel] [k] sys_write 0.00% dd [kernel] [k] fget_light 0.00% dd [kernel] [k] fget 0.00% dd [kernel] [k] fput 0.00% dd [kernel] [k] copy_strings 0.00% dd [kernel] [k] kernel_read 0.00% dd [kernel] [k] acl_permission_check 0.00% dd [kernel] [k] d_alloc 0.00% dd [kernel] [k] __d_lookup 0.00% dd [kernel] [k] bio_endio 0.00% dd [kernel] [k] ext4_readpages 0.00% dd [kernel] [k] jbd2_journal_stop 0.00% dd [kernel] [k] dtSearch 0.00% dd [kernel] [k] security_inode_permission 0.00% dd [kernel] [k] req_bio_endio 0.00% dd [kernel] [k] cfq_idle_slice_timer 0.00% dd [kernel] [k] __rb_rotate_right 0.00% dd [kernel] [k] sha_transform 0.00% dd [kernel] [k] strnlen_user 0.00% dd [kernel] [k] tty_insert_flip_string 0.00% dd [kernel] [k] scsi_next_command 0.00% dd /lib/libc-2.11.so [.] __GI_bsearch 0.00% dd /lib/libc-2.11.so [.] msort_with_tmp 0.00% dd /lib/libc-2.11.so [.] __GI_getenv 0.00% dd /lib/libc-2.11.so [.] __GI___printf_fp 0.00% dd /lib/libc-2.11.so [.] __libc_open64 0.00% dd /lib/ld-2.11.so [.] _dl_sort_fini 0.00% dd /lib/ld-2.11.so [.] match_symbol 0.00% dd /lib/ld-2.11.so [.] _dl_next_ld_env_entry 0.00% dd /lib/ld-2.11.so [.] strcmp # # (For a higher level overview, try: perf report --sort comm,dso) # [-- Attachment #10: perf9.report --] [-- Type: text/plain, Size: 33507 bytes --] # Samples: 41396 # # Overhead Command Shared Object Symbol # ........ ....... ....................... ...... # 11.98% dd [kernel] [k] __copy_to_user_ll 8.74% dd [kernel] [k] __extent_read_full_page 5.37% dd [kernel] [k] get_page_from_freelist 4.09% dd [kernel] [k] __btrfs_map_block 3.87% dd [kernel] [k] insert_state 2.49% dd [kernel] [k] btrfs_lookup_bio_sums 2.13% dd [kernel] [k] generic_file_aio_read 2.04% dd [kernel] [k] lookup_extent_mapping 1.99% dd [kernel] [k] __tree_search 1.92% dd [kernel] [k] set_extent_bit 1.85% dd [kernel] [k] btrfs_get_extent 1.80% dd [kernel] [k] __blk_recalc_rq_segments 1.77% dd [kernel] [k] submit_extent_page 1.73% dd [kernel] [k] file_read_actor 1.73% dd [kernel] [k] read_extent_buffer 1.69% dd [kernel] [k] add_to_page_cache_locked 1.60% dd [kernel] [k] __bio_add_page 1.51% dd [kernel] [k] test_range_bit 1.47% dd [kernel] [k] __rcu_read_unlock 1.39% dd [kernel] [k] __alloc_pages_nodemask 1.17% dd [kernel] [k] kmem_cache_alloc 1.13% dd [kernel] [k] find_get_page 1.12% dd [kernel] [k] btrfs_merge_bio_hook 1.10% dd [kernel] [k] generic_bin_search 1.06% dd [kernel] [k] lock_extent_bits 1.02% dd [kernel] [k] __do_page_cache_readahead 0.93% dd [kernel] [k] put_page 0.86% dd [kernel] [k] set_state_private 0.84% dd [kernel] [k] btrfs_lookup_ordered_extent 0.81% dd [kernel] [k] ____pagevec_lru_add 0.74% dd [kernel] [k] zone_watermark_ok 0.73% dd [kernel] [k] btrfs_find_ordered_sum 0.73% dd [kernel] [k] extent_readpages 0.72% dd [kernel] [k] __rcu_read_lock 0.71% dd [kernel] [k] btrfs_map_block 0.71% dd [kernel] [k] rb_insert_color 0.66% dd [kernel] [k] map_private_extent_buffer 0.66% dd [kernel] [k] scsi_dispatch_cmd 0.62% dd [kernel] [k] lock_extent 0.57% dd [kernel] [k] scsi_request_fn 0.56% perf [kernel] [k] generic_file_buffered_write 0.54% dd [kernel] [k] T.1339 0.53% dd [kernel] [k] btrfs_set_bit_hook 0.52% dd [kernel] [k] __make_request 0.50% dd [kernel] [k] next_zones_zonelist 0.48% dd [kernel] [k] radix_tree_lookup_slot 0.43% dd [kernel] [k] btrfs_search_slot 0.43% dd [kernel] [k] bio_add_page 0.38% dd [kernel] [k] free_extent_map 0.37% perf [kernel] [k] __generic_file_aio_write 0.37% dd [kernel] [k] merge_state 0.36% dd [kernel] [k] map_extent_buffer 0.35% dd [kernel] [k] radix_tree_lookup 0.33% dd [kernel] [k] blk_end_bidi_request 0.32% dd [kernel] [k] __rb_rotate_left 0.30% dd [kernel] [k] radix_tree_preload 0.30% dd [kernel] [k] schedule 0.29% dd [kernel] [k] mark_page_accessed 0.25% dd [kernel] [k] _cond_resched 0.25% dd [kernel] [k] do_page_fault 0.24% dd [kernel] [k] alloc_extent_state 0.23% dd [kernel] [k] get_request 0.22% dd [kernel] [k] ata_sff_interrupt 0.21% dd [kernel] [k] mutex_lock 0.21% dd [kernel] [k] rb_next 0.20% dd [kernel] [k] __init_waitqueue_head 0.20% dd [kernel] [k] unmap_vmas 0.19% perf [kernel] [k] T.1339 0.19% perf [kernel] [k] sysenter_past_esp 0.19% perf [kernel] [k] iov_iter_advance 0.19% perf [kernel] [k] nobh_write_begin 0.18% perf [kernel] [k] nobh_write_end 0.18% dd [kernel] [k] rcu_sched_qs 0.17% perf [kernel] [k] vfs_write 0.17% perf [kernel] [k] generic_file_aio_write 0.17% dd [kernel] [k] __wake_up 0.16% perf [kernel] [k] __jfs_getxattr 0.16% dd [kernel] [k] handle_mm_fault 0.16% perf [kernel] [k] iov_iter_copy_from_user_atomic 0.15% dd [kernel] [k] handle_IRQ_event 0.15% dd [kernel] [k] read_block_for_search 0.15% dd [kernel] [k] generic_make_request 0.15% dd [kernel] [k] unmap_extent_buffer 0.14% perf [kernel] [k] __copy_from_user_ll_nozero 0.14% dd [kernel] [k] verify_parent_transid 0.14% dd [kernel] [k] free_hot_cold_page 0.14% perf [kernel] [k] do_sync_write 0.14% perf [kernel] [k] generic_segment_checks 0.14% perf [kernel] [k] getnstimeofday 0.13% perf [kernel] [k] find_get_page 0.13% dd [kernel] [k] __do_softirq 0.13% perf [kernel] [k] rw_verify_area 0.13% perf [kernel] [k] sys_write 0.13% dd [kernel] [k] btrfs_key_generation 0.12% perf [kernel] [k] jfs_write_begin 0.12% perf [kernel] [k] ea_get 0.12% dd [kernel] [k] mutex_unlock 0.12% perf [kernel] [k] iov_iter_fault_in_readable 0.11% perf [kernel] [k] xtSearch 0.11% dd [kernel] [k] extent_buffer_uptodate 0.11% dd [kernel] [k] ehci_watchdog [ehci_hcd] 0.11% dd [kernel] [k] __queue_work 0.11% dd [kernel] [k] btrfs_queue_worker 0.10% dd [kernel] [k] btrfs_map_bio 0.10% perf [kernel] [k] dbAlloc 0.10% dd [kernel] [k] btrfs_key_blockptr 0.10% dd [kernel] [k] btrfs_clear_path_blocking 0.10% dd [kernel] [k] set_page_extent_mapped 0.10% dd [kernel] [k] find_extent_buffer 0.10% dd [kernel] [k] release_pages 0.10% dd [kernel] [k] preempt_schedule 0.09% perf [kernel] [k] fsnotify 0.09% dd [kernel] [k] btrfs_lookup_csum 0.09% perf [kernel] [k] acpi_pm_read 0.09% dd [kernel] [k] bin_search 0.09% perf [kernel] [k] get_page_from_freelist 0.09% perf [kernel] [k] balance_dirty_pages_ratelimited_nr 0.09% dd [kernel] [k] btrfs_tree_unlock 0.08% perf [kernel] [k] schedule 0.08% dd [kernel] [k] unlock_up 0.08% perf [kernel] [k] grab_cache_page_write_begin 0.08% perf [kernel] [k] generic_write_sync 0.07% perf [vdso] [.] 0x000000ffffe424 0.07% perf [kernel] [k] copy_to_user 0.07% dd [kernel] [k] btrfs_item_size 0.07% perf [kernel] [k] extAlloc 0.07% dd [kernel] [k] btrfs_header_nritems 0.07% dd [kernel] [k] cfq_set_request 0.07% perf [kernel] [k] sys_gettimeofday 0.07% perf [kernel] [k] find_lock_page 0.07% perf [kernel] [k] __mark_inode_dirty 0.07% perf [kernel] [k] __rcu_read_unlock 0.07% perf [kernel] [k] radix_tree_lookup_slot 0.06% perf [kernel] [k] mark_page_accessed 0.06% perf [kernel] [k] put_page 0.06% dd [kernel] [k] btrfs_try_spin_lock 0.06% perf [kernel] [k] unlock_page 0.06% perf [kernel] [k] fget_light 0.06% perf [kernel] [k] __set_page_dirty_buffers 0.06% perf [kernel] [k] jfs_getxattr 0.06% dd [kernel] [k] mix_pool_bytes_extract 0.06% dd [kernel] [k] btrfs_item_offset 0.05% perf [kernel] [k] inotify_inode_queue_event 0.05% dd [kernel] [k] __kmalloc 0.05% perf [kernel] [k] file_update_time 0.05% perf [kernel] [k] __set_page_dirty 0.05% perf [kernel] [k] vsnprintf 0.05% perf [kernel] [k] file_remove_suid 0.05% dd [kernel] [k] btrfs_clear_lock_blocking 0.05% perf [kernel] [k] number 0.05% perf [kernel] [k] _cond_resched 0.04% dd [kernel] [k] btrfs_buffer_uptodate 0.04% perf [kernel] [k] inotify_dentry_parent_queue_event 0.04% perf [kernel] [k] dbAllocBits 0.04% perf [kernel] [k] __get_metapage 0.04% dd [kernel] [k] get_pageblock_flags_group 0.04% dd [kernel] [k] find_vma 0.04% dd [kernel] [k] kmem_cache_alloc_notrace 0.04% dd [kernel] [k] mdio_ctrl_hw 0.04% perf [kernel] [k] __wake_up 0.04% perf [kernel] [k] should_remove_suid 0.04% perf [kernel] [k] cap_inode_need_killpriv 0.04% dd [kernel] [k] get_io_context 0.04% perf [kernel] [k] timespec_trunc 0.04% perf [kernel] [k] format_decode 0.04% perf [kernel] [k] strncmp 0.04% perf [kernel] [k] strlen 0.04% dd [kernel] [k] filemap_fault 0.04% dd [kernel] [k] __lru_cache_add 0.04% dd [kernel] [k] kmem_cache_free 0.04% dd [kernel] [k] btrfs_unlock_up_safe 0.04% dd [kernel] [k] btrfs_find_tree_block 0.03% perf [kernel] [k] copy_page_range 0.03% perf [kernel] [k] kfree 0.03% perf [kernel] [k] xtLookup 0.03% dd [kernel] [k] page_add_new_anon_rmap 0.03% dd [kernel] [k] anon_vma_prepare 0.03% dd [kernel] [k] btrfs_release_path 0.03% dd [kernel] [k] btrfs_submit_bio_hook 0.03% dd [kernel] [k] submit_bio 0.03% perf [kernel] [k] __wake_up_bit 0.03% perf [kernel] [k] __fsnotify_parent 0.03% perf [kernel] [k] jfs_dirty_inode 0.03% perf [kernel] [k] mutex_lock 0.03% dd [kernel] [k] vm_normal_page 0.03% dd [kernel] [k] __do_fault 0.03% dd [kernel] [k] submit_one_bio 0.03% dd [kernel] [k] blk_rq_bio_prep 0.03% perf [kernel] [k] current_fs_time 0.03% perf [kernel] [k] do_gettimeofday 0.03% perf [kernel] [k] __alloc_pages_nodemask 0.03% perf [kernel] [k] ea_release 0.03% dd [kernel] [k] free_hot_page 0.03% dd [kernel] [k] btrfs_bio_wq_end_io 0.03% dd [kernel] [k] btrfs_spin_on_block 0.03% dd [kernel] [k] btrfs_tree_lock 0.03% perf [kernel] [k] current_kernel_time 0.03% perf [kernel] [k] __rcu_read_lock 0.03% perf [kernel] [k] dbAllocNext 0.03% perf [kernel] [k] extHint 0.03% perf [kernel] [k] cap_file_permission 0.02% perf [kernel] [k] set_page_dirty 0.02% perf [kernel] [k] jfs_get_block 0.02% perf [kernel] [k] xtExtend 0.02% perf [kernel] [k] release_metapage 0.02% perf [kernel] [k] scsi_dispatch_cmd 0.02% dd [kernel] [k] kfree 0.02% dd [kernel] [k] bio_alloc_bioset 0.02% dd [kernel] [k] btrfs_root_node 0.02% dd [kernel] [k] scsi_run_queue 0.02% dd [kernel] [k] bio_put 0.02% dd [kernel] [k] btrfs_set_lock_blocking 0.02% dd [kernel] [k] cfq_cic_lookup 0.02% dd [kernel] [k] sha_transform 0.02% perf [kernel] [k] sysenter_do_call 0.02% perf [kernel] [k] add_to_page_cache_locked 0.02% perf [kernel] [k] read_cache_page 0.02% perf [kernel] [k] security_file_permission 0.02% perf [kernel] [k] ata_sff_interrupt 0.02% perf [kernel] [k] mutex_unlock 0.02% perf [kernel] [k] down_read 0.02% perf [kernel] [k] do_page_fault 0.02% perf /home/cloos/bin/perf [.] __cmd_record 0.02% dd [kernel] [k] page_evictable 0.02% dd [kernel] [k] blk_queue_bounce 0.02% dd [kernel] [k] bvec_alloc_bs 0.02% dd [kernel] [k] blk_rq_init 0.02% dd [kernel] [k] blk_update_request 0.02% dd [kernel] [k] current_io_context 0.02% dd [kernel] [k] kref_put 0.02% dd [kernel] [k] credit_entropy_bits 0.02% dd [kernel] [k] add_timer_randomness 0.02% perf [kernel] [k] kmem_cache_free 0.02% perf [kernel] [k] __find_get_block_slow 0.02% dd [kernel] [k] hrtimer_peek_ahead_timers 0.02% dd [kernel] [k] mempool_alloc_slab 0.02% dd [kernel] [k] free_extent_buffer 0.02% dd [kernel] [k] get_request_wait 0.01% perf [kernel] [k] rcu_sched_qs 0.01% perf [kernel] [k] zone_watermark_ok 0.01% perf [kernel] [k] ____pagevec_lru_add 0.01% perf [kernel] [k] inode_add_bytes 0.01% perf [kernel] [k] __d_path 0.01% perf [kernel] [k] txLock 0.01% dd [kernel] [k] free_page_and_swap_cache 0.01% dd [kernel] [k] copy_strings 0.01% dd [kernel] [k] check_block 0.01% dd [kernel] [k] btrfs_free_path 0.01% dd [kernel] [k] init_request_from_bio 0.01% dd [kernel] [k] blk_run_queue 0.01% dd [kernel] [k] cfq_idle_slice_timer 0.01% dd [kernel] [k] scsi_finish_command 0.01% dd [kernel] [k] scsi_decide_disposition 0.01% dd [kernel] [k] scsi_init_cmd_errh 0.01% perf [kernel] [k] handle_mm_fault 0.01% perf [kernel] [k] dbAdjTree 0.01% perf [kernel] [k] dbAllocDmap 0.01% perf [kernel] [k] blk_end_bidi_request 0.01% dd [kernel] [k] down_read_trylock 0.01% dd [kernel] [k] __rcu_process_callbacks 0.01% dd [kernel] [k] mempool_alloc 0.01% dd [kernel] [k] __d_lookup 0.01% dd [kernel] [k] bio_init 0.01% dd [kernel] [k] bio_alloc 0.01% dd [kernel] [k] mpage_end_io_read 0.01% dd [kernel] [k] btrfs_set_path_blocking 0.01% dd [kernel] [k] btrfs_lock_root_node 0.01% dd [kernel] [k] end_workqueue_bio 0.01% dd [kernel] [k] strnlen_user 0.01% dd [kernel] [k] __scsi_put_command 0.01% dd [kernel] [k] scsi_io_completion 0.01% dd [kernel] [k] sd_done 0.01% perf [kernel] [k] up_read 0.01% perf [kernel] [k] perf_mmap_fault 0.01% perf [kernel] [k] add_to_page_cache_lru 0.01% perf [kernel] [k] __do_fault 0.01% perf [kernel] [k] kmem_cache_alloc 0.01% perf [kernel] [k] mnt_clone_write 0.01% perf [kernel] [k] mnt_want_write_file 0.01% perf [kernel] [k] alloc_buffer_head 0.01% perf [kernel] [k] security_inode_need_killpriv 0.01% perf [kernel] [k] strchr 0.01% dd [kernel] [k] req_bio_endio 0.01% dd [kernel] [k] blk_recount_segments 0.01% dd [kernel] [k] _atomic_dec_and_lock 0.01% dd [kernel] [k] radix_tree_next_hole 0.01% dd [kernel] [k] scsi_device_unbusy 0.01% dd b70d746f [.] 0x000000b70d746f 0.01% perf [kernel] [k] __do_softirq 0.01% perf [kernel] [k] handle_IRQ_event 0.01% perf [kernel] [k] do_read_cache_page 0.01% perf [kernel] [k] do_sys_poll 0.01% perf [kernel] [k] seq_printf 0.01% perf [kernel] [k] dbSplit 0.01% perf [kernel] [k] txBeginAnon 0.01% perf /lib/libpthread-2.11.so [.] __libc_write 0.01% dd [kernel] [k] run_timer_softirq 0.01% dd [kernel] [k] queue_work 0.01% dd [kernel] [k] up_read 0.01% dd [kernel] [k] check_for_new_grace_period 0.01% dd [kernel] [k] unlock_page 0.01% dd [kernel] [k] test_clear_page_writeback 0.01% dd [kernel] [k] __vm_enough_memory 0.01% dd [kernel] [k] mmap_region 0.01% dd [kernel] [k] page_remove_rmap 0.01% dd [kernel] [k] setup_object 0.01% dd [kernel] [k] touch_atime 0.01% dd [kernel] [k] end_buffer_async_write 0.01% dd [kernel] [k] fsnotify 0.01% dd [kernel] [k] elv_set_request 0.01% dd [kernel] [k] blk_done_softirq 0.01% dd [kernel] [k] disk_map_sector_rcu 0.01% dd [kernel] [k] get_device 0.01% dd [kernel] [k] put_device 0.01% dd [kernel] [k] scsi_put_command 0.01% dd [kernel] [k] scsi_handle_queue_ramp_up 0.01% dd /lib/ld-2.11.so [.] _dl_relocate_object 0.00% perf [kernel] [k] dup_mm 0.00% perf [kernel] [k] wait_on_page_read 0.00% perf [kernel] [k] read_cache_page_async 0.00% perf [kernel] [k] __set_page_dirty_nobuffers 0.00% perf [kernel] [k] activate_page 0.00% perf [kernel] [k] do_wp_page 0.00% perf [kernel] [k] mnt_drop_write 0.00% perf [kernel] [k] mangle_path 0.00% perf [kernel] [k] alloc_page_buffers 0.00% perf [kernel] [k] show_map_vma 0.00% perf [kernel] [k] show_map 0.00% perf [kernel] [k] btrfs_queue_worker 0.00% perf [kernel] [k] _copy_from_user 0.00% perf [kernel] [k] ehci_watchdog [ehci_hcd] 0.00% dd [kernel] [k] sysenter_past_esp 0.00% dd [kernel] [k] __wake_up_bit 0.00% dd [kernel] [k] rcu_process_callbacks 0.00% dd [kernel] [k] do_wp_page 0.00% dd [kernel] [k] __get_user_pages 0.00% dd [kernel] [k] __remove_shared_vm_struct 0.00% dd [kernel] [k] anon_vma_unlink 0.00% dd [kernel] [k] __slab_alloc 0.00% dd [kernel] [k] get_slab 0.00% dd [kernel] [k] nameidata_to_filp 0.00% dd [kernel] [k] bio_endio 0.00% dd [kernel] [k] bio_phys_segments 0.00% dd [kernel] [k] dnotify_flush 0.00% dd [kernel] [k] inotify_dentry_parent_queue_event 0.00% dd [kernel] [k] btrfs_item_size_nr 0.00% dd [kernel] [k] cap_inode_permission 0.00% dd [kernel] [k] kobject_put 0.00% dd [kernel] [k] prio_tree_replace 0.00% dd [kernel] [k] prio_tree_insert 0.00% dd [kernel] [k] radix_tree_prev_hole 0.00% dd [kernel] [k] _copy_from_user 0.00% dd [kernel] [k] scsi_pool_free_command 0.00% dd [kernel] [k] scsi_sg_free 0.00% dd [kernel] [k] scsi_softirq_done 0.00% dd [kernel] [k] error_code 0.00% dd /lib/ld-2.11.so [.] do_lookup_x 0.00% dd /lib/ld-2.11.so [.] 0x0000000000c08a 0.00% perf [kernel] [k] arch_dup_task_struct 0.00% perf [kernel] [k] try_to_wake_up 0.00% perf [kernel] [k] wake_up_new_task 0.00% perf [kernel] [k] get_signal_to_deliver 0.00% perf [kernel] [k] hrtimer_try_to_cancel 0.00% perf [kernel] [k] hrtimer_cancel 0.00% perf [kernel] [k] up_write 0.00% perf [kernel] [k] ktime_get_ts 0.00% perf [kernel] [k] check_for_new_grace_period 0.00% perf [kernel] [k] perf_poll 0.00% perf [kernel] [k] perf_event_init_task 0.00% perf [kernel] [k] __page_cache_alloc 0.00% perf [kernel] [k] release_pages 0.00% perf [kernel] [k] __lru_cache_add 0.00% perf [kernel] [k] page_evictable 0.00% perf [kernel] [k] next_zones_zonelist 0.00% perf [kernel] [k] vm_normal_page 0.00% perf [kernel] [k] find_vma 0.00% perf [kernel] [k] __vma_link_rb 0.00% perf [kernel] [k] unmap_region 0.00% perf [kernel] [k] do_mmap_pgoff 0.00% perf [kernel] [k] anon_vma_link 0.00% perf [kernel] [k] sys_lseek 0.00% perf [kernel] [k] __fput 0.00% perf [kernel] [k] acl_permission_check 0.00% perf [kernel] [k] exec_permission 0.00% perf [kernel] [k] new_inode 0.00% perf [kernel] [k] mntput_no_expire 0.00% perf [kernel] [k] seq_putc 0.00% perf [kernel] [k] set_bh_page 0.00% perf [kernel] [k] unmap_underlying_metadata 0.00% perf [kernel] [k] bio_fs_destructor 0.00% perf [kernel] [k] mpage_end_io_read 0.00% perf [kernel] [k] locks_remove_flock 0.00% perf [kernel] [k] m_next 0.00% perf [kernel] [k] proc_alloc_inode 0.00% perf [kernel] [k] render_sigset_t 0.00% perf [kernel] [k] proc_pid_status 0.00% perf [kernel] [k] xtSplitRoot 0.00% perf [kernel] [k] xtInsert 0.00% perf [kernel] [k] req_bio_endio 0.00% perf [kernel] [k] blk_update_request 0.00% perf [kernel] [k] blk_update_bidi_request 0.00% perf [kernel] [k] disk_map_sector_rcu 0.00% perf [kernel] [k] kobject_put 0.00% perf [kernel] [k] prop_fraction_single 0.00% perf [kernel] [k] __rb_rotate_left 0.00% perf [kernel] [k] put_dec_trunc 0.00% perf [kernel] [k] string 0.00% perf [kernel] [k] __sg_free_table 0.00% perf [kernel] [k] add_timer_randomness 0.00% perf [kernel] [k] __scsi_put_command 0.00% perf [kernel] [k] scsi_put_command 0.00% perf [kernel] [k] __scsi_release_buffers 0.00% perf [kernel] [k] scsi_request_fn 0.00% perf [kernel] [k] scsi_next_command 0.00% perf [kernel] [k] preempt_schedule_irq 0.00% perf [kernel] [k] schedule_hrtimeout_range 0.00% perf /lib/libpthread-2.11.so [.] __fork 0.00% perf /lib/libc-2.11.so [.] fgets 0.00% perf /lib/libc-2.11.so [.] _IO_old_init 0.00% perf /lib/libc-2.11.so [.] __GI___gettimeofday_internal 0.00% perf /home/cloos/bin/perf [.] pid_synthesize_mmap_samples 0.00% perf /home/cloos/bin/perf [.] hex2u64 0.00% dd [kernel] [k] init_new_context 0.00% dd [kernel] [k] do_set_thread_area 0.00% dd [kernel] [k] sched_move_task 0.00% dd [kernel] [k] run_hrtimer_softirq 0.00% dd [kernel] [k] hrtimer_try_to_cancel 0.00% dd [kernel] [k] rcu_bh_qs 0.00% dd [kernel] [k] rcu_process_gp_end 0.00% dd [kernel] [k] __call_rcu 0.00% dd [kernel] [k] perf_output_unlock 0.00% dd [kernel] [k] perf_event_mmap_ctx 0.00% dd [kernel] [k] __perf_event_mmap 0.00% dd [kernel] [k] ondemand_readahead 0.00% dd [kernel] [k] lru_cache_add_lru 0.00% dd [kernel] [k] vma_prio_tree_remove 0.00% dd [kernel] [k] vm_stat_account 0.00% dd [kernel] [k] expand_downwards 0.00% dd [kernel] [k] unlink_file_vma 0.00% dd [kernel] [k] mprotect_fixup 0.00% dd [kernel] [k] sys_mprotect 0.00% dd [kernel] [k] filp_close 0.00% dd [kernel] [k] rw_verify_area 0.00% dd [kernel] [k] vfs_read 0.00% dd [kernel] [k] file_free_rcu 0.00% dd [kernel] [k] fget_light 0.00% dd [kernel] [k] __fput 0.00% dd [kernel] [k] check_unsafe_exec 0.00% dd [kernel] [k] path_get 0.00% dd [kernel] [k] __follow_mount 0.00% dd [kernel] [k] path_put 0.00% dd [kernel] [k] link_path_walk 0.00% dd [kernel] [k] do_filp_open 0.00% dd [kernel] [k] spin_unlock 0.00% dd [kernel] [k] spin_unlock 0.00% dd [kernel] [k] alloc_fd 0.00% dd [kernel] [k] bio_get_nr_vecs 0.00% dd [kernel] [k] bio_fs_destructor 0.00% dd [kernel] [k] __fsnotify_parent 0.00% dd [kernel] [k] load_elf_binary 0.00% dd [kernel] [k] jfs_release 0.00% dd [kernel] [k] btrfs_congested_fn 0.00% dd [kernel] [k] is_file_shm_hugepages 0.00% dd [kernel] [k] get_vfs_caps_from_disk 0.00% dd [kernel] [k] security_inode_getattr 0.00% dd [kernel] [k] cap_file_permission 0.00% dd [kernel] [k] blk_get_backing_dev_info 0.00% dd [kernel] [k] blk_backing_dev_unplug 0.00% dd [kernel] [k] blk_unplug_timeout 0.00% dd [kernel] [k] blk_update_bidi_request 0.00% dd [kernel] [k] blk_end_request 0.00% dd [kernel] [k] cfq_get_queue 0.00% dd [kernel] [k] kref_get 0.00% dd [kernel] [k] prio_tree_remove 0.00% dd [kernel] [k] copy_to_user 0.00% dd [kernel] [k] __sg_free_table 0.00% dd [kernel] [k] add_disk_randomness 0.00% dd [kernel] [k] n_tty_write 0.00% dd [kernel] [k] tty_ldisc_deref 0.00% dd [kernel] [k] tty_insert_flip_string 0.00% dd [kernel] [k] tty_flip_buffer_push 0.00% dd [kernel] [k] __scsi_release_buffers 0.00% dd [kernel] [k] pfifo_fast_dequeue 0.00% dd [kernel] [k] netlink_broadcast 0.00% dd /lib/libc-2.11.so [.] _nl_find_locale 0.00% dd /lib/libc-2.11.so [.] _IO_vfprintf_internal 0.00% dd /lib/libc-2.11.so [.] _IO_new_file_xsputn 0.00% dd /lib/libc-2.11.so [.] __strchrnul 0.00% dd /lib/libc-2.11.so [.] intel_check_word 0.00% dd /lib/libc-2.11.so [.] ___fprintf_chk 0.00% dd /lib/libc-2.11.so [.] _dl_addr 0.00% dd /lib/ld-2.11.so [.] _dl_map_object_from_fd 0.00% dd /lib/ld-2.11.so [.] _dl_init_paths 0.00% dd /lib/ld-2.11.so [.] _dl_cache_libcmp 0.00% dd /lib/ld-2.11.so [.] check_match.8476 0.00% dd /lib/ld-2.11.so [.] _dl_lookup_symbol_x 0.00% dd /lib/ld-2.11.so [.] __libc_close 0.00% dd /lib/ld-2.11.so [.] __mmap 0.00% dd /lib/ld-2.11.so [.] 0x0000000001943e 0.00% dd /bin/dd [.] 0x000000000013b6 # # (For a higher level overview, try: perf report --sort comm,dso) # [-- Attachment #11: perf10.report --] [-- Type: text/plain, Size: 28650 bytes --] # Samples: 25313 # # Overhead Command Shared Object Symbol # ........ ....... ....................... ...... # 17.81% dd [kernel] [k] __copy_to_user_ll 12.23% dd [kernel] [k] do_mpage_readpage 9.82% dd [kernel] [k] get_page_from_freelist 3.43% dd [kernel] [k] __blk_recalc_rq_segments 3.37% dd [kernel] [k] generic_file_aio_read 3.37% dd [kernel] [k] __bio_add_page 3.34% dd [kernel] [k] add_to_page_cache_locked 2.82% dd [kernel] [k] file_read_actor 2.68% dd [kernel] [k] __alloc_pages_nodemask 1.96% dd [kernel] [k] scsi_request_fn 1.89% dd [kernel] [k] scsi_dispatch_cmd 1.83% dd [kernel] [k] __do_page_cache_readahead 1.76% dd [kernel] [k] find_get_page 1.59% dd [kernel] [k] ____pagevec_lru_add 1.55% dd [kernel] [k] put_page 1.46% dd [kernel] [k] __rcu_read_unlock 1.33% dd [kernel] [k] zone_watermark_ok 1.29% dd [kernel] [k] mpage_readpages 1.16% dd [kernel] [k] __lru_cache_add 1.01% dd [kernel] [k] bio_add_page 0.98% dd [kernel] [k] add_to_page_cache_lru 0.83% dd [kernel] [k] next_zones_zonelist 0.66% dd [kernel] [k] radix_tree_lookup_slot 0.66% dd [kernel] [k] radix_tree_preload 0.60% perf [kernel] [k] generic_file_buffered_write 0.56% dd [kernel] [k] __rcu_read_lock 0.56% dd [kernel] [k] blk_end_bidi_request 0.56% dd [kernel] [k] __make_request 0.51% dd [kernel] [k] radix_tree_lookup 0.49% dd [kernel] [k] get_request 0.42% perf [kernel] [k] __generic_file_aio_write 0.40% dd [kernel] [k] _cond_resched 0.39% dd [kernel] [k] unmap_vmas 0.39% dd [kernel] [k] do_page_fault 0.38% dd [kernel] [k] kmem_cache_alloc 0.36% dd [kernel] [k] schedule 0.32% dd [kernel] [k] handle_mm_fault 0.31% dd [kernel] [k] mark_page_accessed 0.29% perf [kernel] [k] T.1339 0.27% dd [kernel] [k] generic_make_request 0.26% dd [kernel] [k] mpage_end_io_read 0.25% perf [kernel] [k] find_get_page 0.25% dd [kernel] [k] T.1339 0.24% perf [kernel] [k] nobh_write_begin 0.22% perf [kernel] [k] xtSearch 0.22% dd [kernel] [k] free_hot_cold_page 0.22% dd [kernel] [k] ata_sff_interrupt 0.22% perf [kernel] [k] sysenter_past_esp 0.22% perf [kernel] [k] __jfs_getxattr 0.21% perf [kernel] [k] iov_iter_advance 0.21% perf [kernel] [k] vfs_write 0.20% perf [kernel] [k] nobh_write_end 0.20% dd [kernel] [k] ext4_get_blocks 0.19% perf [kernel] [k] iov_iter_copy_from_user_atomic 0.18% perf [kernel] [k] do_sync_write 0.18% perf [kernel] [k] generic_file_aio_write 0.17% dd [kernel] [k] ext4_ext_get_blocks 0.17% perf [kernel] [k] __copy_from_user_ll_nozero 0.16% perf [kernel] [k] extAlloc 0.15% perf [kernel] [k] dbAlloc 0.15% perf [kernel] [k] number 0.15% dd [kernel] [k] sha_transform 0.15% perf [kernel] [k] getnstimeofday 0.15% perf [kernel] [k] rw_verify_area 0.14% dd [kernel] [k] handle_IRQ_event 0.14% dd [kernel] [k] __do_softirq 0.13% perf [kernel] [k] sys_write 0.13% perf [kernel] [k] vsnprintf 0.13% dd [kernel] [k] ext4_data_block_valid 0.13% dd [kernel] [k] blk_rq_init 0.13% dd [kernel] [k] cfq_set_request 0.13% dd [kernel] [k] ehci_watchdog [ehci_hcd] 0.12% perf [kernel] [k] get_page_from_freelist 0.12% perf [kernel] [k] generic_segment_checks 0.12% dd [kernel] [k] __wake_up_bit 0.12% dd [kernel] [k] get_pageblock_flags_group 0.11% perf [kernel] [k] balance_dirty_pages_ratelimited_nr 0.11% perf [kernel] [k] jfs_write_begin 0.11% perf [kernel] [k] acpi_pm_read 0.11% dd [kernel] [k] bio_alloc_bioset 0.11% dd [kernel] [k] rcu_sched_qs 0.11% perf [kernel] [k] ea_get 0.10% perf [kernel] [k] __rcu_read_unlock 0.10% perf [kernel] [k] __set_page_dirty 0.10% dd [kernel] [k] __wake_up 0.09% perf [vdso] [.] 0x000000ffffe424 0.09% perf [kernel] [k] grab_cache_page_write_begin 0.09% perf [kernel] [k] fsnotify 0.09% perf [kernel] [k] __mark_inode_dirty 0.09% perf [kernel] [k] radix_tree_lookup_slot 0.09% dd [kernel] [k] ext4_get_block 0.09% dd [kernel] [k] blk_update_request 0.08% perf [kernel] [k] iov_iter_fault_in_readable 0.08% perf [kernel] [k] put_page 0.08% perf [kernel] [k] file_remove_suid 0.08% perf [kernel] [k] unlock_page 0.08% perf [kernel] [k] copy_page_range 0.08% perf [kernel] [k] schedule 0.08% perf [kernel] [k] copy_to_user 0.08% dd [kernel] [k] ondemand_readahead 0.08% dd [kernel] [k] release_pages 0.08% dd [kernel] [k] mix_pool_bytes_extract 0.07% perf [kernel] [k] mark_page_accessed 0.07% perf [kernel] [k] __get_metapage 0.07% perf [kernel] [k] format_decode 0.07% dd [kernel] [k] kref_put 0.07% perf [kernel] [k] generic_write_sync 0.07% perf [kernel] [k] xtLookup 0.07% perf [kernel] [k] ea_release 0.06% perf [kernel] [k] should_remove_suid 0.06% dd [kernel] [k] filemap_fault 0.06% dd [kernel] [k] anon_vma_prepare 0.06% dd [kernel] [k] mpage_alloc 0.06% perf [kernel] [k] sys_gettimeofday 0.06% perf [kernel] [k] __wake_up_bit 0.06% perf [kernel] [k] jfs_getxattr 0.06% perf [kernel] [k] find_lock_page 0.06% perf [kernel] [k] __set_page_dirty_buffers 0.06% dd [kernel] [k] up_read 0.06% dd [kernel] [k] free_page_and_swap_cache 0.05% perf [kernel] [k] __wake_up 0.05% perf [kernel] [k] current_fs_time 0.05% perf [kernel] [k] file_update_time 0.05% perf [kernel] [k] inotify_inode_queue_event 0.05% dd [kernel] [k] down_read_trylock 0.05% dd [kernel] [k] mempool_alloc 0.05% dd [kernel] [k] find_vma 0.05% dd [kernel] [k] kmem_cache_free 0.05% dd [kernel] [k] blk_rq_bio_prep 0.05% dd [kernel] [k] submit_bio 0.05% perf [kernel] [k] timespec_trunc 0.05% perf [kernel] [k] kfree 0.05% perf [kernel] [k] jfs_dirty_inode 0.05% perf [kernel] [k] strncmp 0.05% dd [kernel] [k] scsi_finish_command 0.05% dd [kernel] [k] preempt_schedule 0.04% perf [kernel] [k] do_gettimeofday 0.04% perf [kernel] [k] add_to_page_cache_locked 0.04% perf [kernel] [k] release_metapage 0.04% dd [kernel] [k] __do_fault 0.04% dd [kernel] [k] page_add_new_anon_rmap 0.04% dd [kernel] [k] blk_queue_bounce 0.04% dd [kernel] [k] init_request_from_bio 0.04% dd [kernel] [k] get_io_context 0.04% dd [kernel] [k] scsi_init_cmd_errh 0.04% perf [kernel] [k] fget_light 0.04% perf [kernel] [k] dbAllocBits 0.04% dd [kernel] [k] free_hot_page 0.04% dd [kernel] [k] ra_submit 0.04% dd [kernel] [k] vm_normal_page 0.04% dd [kernel] [k] bio_get_nr_vecs 0.04% dd [kernel] [k] bio_init 0.04% dd [kernel] [k] blk_done_softirq 0.04% perf [kernel] [k] current_kernel_time 0.04% perf [kernel] [k] inotify_dentry_parent_queue_event 0.04% perf [kernel] [k] xtExtend 0.04% perf [kernel] [k] extHint 0.04% perf [kernel] [k] strlen 0.04% perf [kernel] [k] do_page_fault 0.04% dd [kernel] [k] unlock_page 0.04% dd [kernel] [k] page_cache_async_readahead 0.04% dd [kernel] [k] down_read 0.03% perf [kernel] [k] perf_mmap_fault 0.03% perf [kernel] [k] mutex_unlock 0.03% perf /home/cloos/bin/perf [.] __cmd_record 0.03% dd [kernel] [k] generic_unplug_device 0.03% perf [kernel] [k] __rcu_read_lock 0.03% perf [kernel] [k] __do_fault 0.03% perf [kernel] [k] handle_mm_fault 0.03% perf [kernel] [k] kmem_cache_free 0.03% perf [kernel] [k] jfs_get_block 0.03% perf [kernel] [k] dbAllocDmap 0.03% perf [kernel] [k] cap_inode_need_killpriv 0.03% perf [kernel] [k] cap_file_permission 0.03% perf [kernel] [k] strchr 0.03% perf [kernel] [k] scsi_dispatch_cmd 0.03% perf [kernel] [k] mutex_lock 0.03% dd [kernel] [k] page_evictable 0.03% dd [kernel] [k] bio_fs_destructor 0.03% dd [kernel] [k] blk_unplug 0.03% dd [kernel] [k] get_request_wait 0.03% dd [kernel] [k] blk_recount_segments 0.03% dd [kernel] [k] __scsi_put_command 0.03% dd [kernel] [k] scsi_handle_queue_ramp_up 0.03% dd [kernel] [k] scsi_run_queue 0.02% perf [kernel] [k] do_read_cache_page 0.02% perf [kernel] [k] read_cache_page 0.02% perf [kernel] [k] ____pagevec_lru_add 0.02% perf [kernel] [k] dbAdjTree 0.02% perf [kernel] [k] dbAllocNext 0.02% perf [kernel] [k] _cond_resched 0.02% dd [kernel] [k] mempool_free 0.02% dd [kernel] [k] kobject_put 0.02% dd [kernel] [k] strnlen_user 0.02% dd [kernel] [k] sd_done 0.02% perf [kernel] [k] inode_add_bytes 0.02% perf [kernel] [k] mpage_end_io_read 0.02% perf [kernel] [k] __fsnotify_parent 0.02% perf [kernel] [k] txLock 0.02% perf [kernel] [k] down_read 0.02% perf [kernel] [k] ehci_watchdog [ehci_hcd] 0.02% dd [kernel] [k] put_pages_list 0.02% dd [kernel] [k] do_wp_page 0.02% dd [kernel] [k] bvec_alloc_bs 0.02% dd [kernel] [k] ext4_readpages 0.02% dd [kernel] [k] req_bio_endio 0.02% dd [kernel] [k] credit_entropy_bits 0.02% dd [kernel] [k] scsi_decide_disposition 0.02% dd [kernel] [k] scsi_softirq_done 0.02% dd /lib/ld-2.11.so [.] strcmp 0.02% perf [kernel] [k] up_read 0.02% perf [kernel] [k] up_write 0.02% perf [kernel] [k] rcu_sched_qs 0.02% perf [kernel] [k] perf_poll 0.02% perf [kernel] [k] zone_watermark_ok 0.02% perf [kernel] [k] __alloc_pages_nodemask 0.02% perf [kernel] [k] prepend 0.02% perf [kernel] [k] mnt_drop_write 0.02% perf [kernel] [k] mnt_clone_write 0.02% perf [kernel] [k] alloc_buffer_head 0.02% perf [kernel] [k] dbSplit 0.02% perf [kernel] [k] security_file_permission 0.02% dd [kernel] [k] __remove_shared_vm_struct 0.02% dd [kernel] [k] copy_strings 0.02% dd [kernel] [k] do_lookup 0.02% dd [kernel] [k] bio_phys_segments 0.02% dd [kernel] [k] mpage_bio_submit 0.02% dd [kernel] [k] blk_update_bidi_request 0.02% dd [kernel] [k] current_io_context 0.02% dd [kernel] [k] cfq_cic_lookup 0.02% dd [kernel] [k] add_timer_randomness 0.02% dd [kernel] [k] scsi_put_command 0.02% dd [kernel] [k] scsi_sg_free 0.02% dd [kernel] [k] scsi_device_unbusy 0.01% perf [kernel] [k] dup_mm 0.01% perf [kernel] [k] __do_softirq 0.01% perf [kernel] [k] down_read_trylock 0.01% perf [kernel] [k] read_cache_page_async 0.01% perf [kernel] [k] set_page_dirty 0.01% perf [kernel] [k] __set_page_dirty_nobuffers 0.01% perf [kernel] [k] do_wp_page 0.01% perf [kernel] [k] mangle_path 0.01% perf [kernel] [k] __find_get_block_slow 0.01% perf [kernel] [k] unmap_underlying_metadata 0.01% perf [kernel] [k] show_map_vma 0.01% perf [kernel] [k] security_inode_need_killpriv 0.01% perf [kernel] [k] blk_end_bidi_request 0.01% perf [kernel] [k] ata_sff_interrupt 0.01% perf /lib/libc-2.11.so [.] __GI___gettimeofday_internal 0.01% dd [kernel] [k] run_timer_softirq 0.01% dd [kernel] [k] mempool_alloc_slab 0.01% dd [kernel] [k] mmap_region 0.01% dd [kernel] [k] page_remove_rmap 0.01% dd [kernel] [k] blk_run_queue 0.01% dd [kernel] [k] scsi_log_send 0.01% dd [kernel] [k] __scsi_release_buffers 0.01% dd [kernel] [k] scsi_io_completion 0.01% dd b7771cc4 [.] 0x000000b7771cc4 0.01% perf [kernel] [k] sysenter_do_call 0.01% perf [kernel] [k] timespec_add_safe 0.01% perf [kernel] [k] rcu_process_gp_end 0.01% perf [kernel] [k] wait_on_page_read 0.01% perf [kernel] [k] add_to_page_cache_lru 0.01% perf [kernel] [k] find_vma 0.01% perf [kernel] [k] __vma_link_rb 0.01% perf [kernel] [k] kmem_cache_alloc 0.01% perf [kernel] [k] __d_path 0.01% perf [kernel] [k] mnt_want_write_file 0.01% perf [kernel] [k] seq_printf 0.01% perf [kernel] [k] seq_read 0.01% perf [kernel] [k] bio_free 0.01% perf [kernel] [k] xtInsert 0.01% perf [kernel] [k] dbAllocCtl 0.01% perf [kernel] [k] cfq_idle_slice_timer 0.01% perf [kernel] [k] radix_tree_preload 0.01% perf [kernel] [k] credit_entropy_bits 0.01% perf [kernel] [k] mix_pool_bytes_extract 0.01% perf [kernel] [k] scsi_request_fn 0.01% perf /lib/libc-2.11.so [.] __libc_poll 0.01% dd [kernel] [k] sysenter_past_esp 0.01% dd [kernel] [k] test_ti_thread_flag 0.01% dd [kernel] [k] unshare_fd 0.01% dd [kernel] [k] up_write 0.01% dd [kernel] [k] rcu_process_gp_end 0.01% dd [kernel] [k] perf_output_copy 0.01% dd [kernel] [k] lru_cache_add_lru 0.01% dd [kernel] [k] vma_adjust 0.01% dd [kernel] [k] mprotect_fixup 0.01% dd [kernel] [k] path_get 0.01% dd [kernel] [k] __d_lookup 0.01% dd [kernel] [k] mntput_no_expire 0.01% dd [kernel] [k] bio_put 0.01% dd [kernel] [k] bio_free 0.01% dd [kernel] [k] load_elf_binary 0.01% dd [kernel] [k] elv_set_request 0.01% dd [kernel] [k] blk_end_request 0.01% dd [kernel] [k] kobject_get 0.01% dd [kernel] [k] kref_get 0.01% dd [kernel] [k] prio_tree_insert 0.01% dd [kernel] [k] rb_insert_color 0.01% dd [kernel] [k] _copy_from_user 0.01% dd [kernel] [k] __sg_free_table 0.01% dd [kernel] [k] do_output_char 0.01% dd [kernel] [k] put_device 0.01% dd [kernel] [k] scsi_log_completion 0.01% dd [kernel] [k] acpi_pm_read 0.01% dd [kernel] [k] error_code 0.01% dd /lib/libc-2.11.so [.] _dl_addr 0.01% dd /lib/ld-2.11.so [.] _dl_map_object_from_fd 0.01% dd /lib/ld-2.11.so [.] do_lookup_x 0.01% dd /lib/ld-2.11.so [.] ___fxstat64 0.01% dd /bin/dd [.] dd_copy 0.00% perf [kernel] [k] pte_alloc_one 0.00% perf [kernel] [k] get_gate_vma 0.00% perf [kernel] [k] lock_task_sighand 0.00% perf [kernel] [k] __queue_work 0.00% perf [kernel] [k] remove_wait_queue 0.00% perf [kernel] [k] __hrtimer_start_range_ns 0.00% perf [kernel] [k] hrtimer_peek_ahead_timers 0.00% perf [kernel] [k] hrtimer_cancel 0.00% perf [kernel] [k] filemap_fault 0.00% perf [kernel] [k] mempool_free 0.00% perf [kernel] [k] test_clear_page_writeback 0.00% perf [kernel] [k] __lru_cache_add 0.00% perf [kernel] [k] next_zones_zonelist 0.00% perf [kernel] [k] __vm_enough_memory 0.00% perf [kernel] [k] page_add_file_rmap 0.00% perf [kernel] [k] nameidata_to_filp 0.00% perf [kernel] [k] do_sys_open 0.00% perf [kernel] [k] generic_file_llseek 0.00% perf [kernel] [k] __d_instantiate 0.00% perf [kernel] [k] d_instantiate 0.00% perf [kernel] [k] d_path 0.00% perf [kernel] [k] free_buffer_head 0.00% perf [kernel] [k] alloc_page_buffers 0.00% perf [kernel] [k] xtSplitRoot 0.00% perf [kernel] [k] dbAllocDmapLev 0.00% perf [kernel] [k] txBeginAnon 0.00% perf [kernel] [k] security_vm_enough_memory_mm 0.00% perf [kernel] [k] blk_update_request 0.00% perf [kernel] [k] blk_run_queue 0.00% perf [kernel] [k] disk_map_sector_rcu 0.00% perf [kernel] [k] __rb_rotate_left 0.00% perf [kernel] [k] put_dec_trunc 0.00% perf [kernel] [k] bitmap_scnlistprintf 0.00% perf [kernel] [k] scsi_log_completion 0.00% perf [kernel] [k] __scsi_put_command 0.00% perf [kernel] [k] scsi_device_unbusy 0.00% perf [kernel] [k] scsi_softirq_done 0.00% perf [kernel] [k] down_write 0.00% perf /lib/libpthread-2.11.so [.] __libc_write 0.00% perf /lib/libpthread-2.11.so [.] __write_nocancel 0.00% perf /lib/libc-2.11.so [.] _IO_vfprintf_internal 0.00% perf /lib/ld-2.11.so [.] _dl_name_match_p 0.00% dd [kernel] [k] sysenter_do_call 0.00% dd [kernel] [k] sched_move_task 0.00% dd [kernel] [k] set_normalized_timespec 0.00% dd [kernel] [k] __queue_work 0.00% dd [kernel] [k] sys_clock_gettime 0.00% dd [kernel] [k] add_wait_queue 0.00% dd [kernel] [k] hrtimer_peek_ahead_timers 0.00% dd [kernel] [k] prepare_creds 0.00% dd [kernel] [k] module_put 0.00% dd [kernel] [k] __call_rcu 0.00% dd [kernel] [k] __rcu_process_callbacks 0.00% dd [kernel] [k] rcu_process_callbacks 0.00% dd [kernel] [k] perf_output_begin 0.00% dd [kernel] [k] __perf_event_mmap 0.00% dd [kernel] [k] mempool_free_slab 0.00% dd [kernel] [k] __free_pages 0.00% dd [kernel] [k] vma_prio_tree_remove 0.00% dd [kernel] [k] follow_page 0.00% dd [kernel] [k] vma_wants_writenotify 0.00% dd [kernel] [k] expand_downwards 0.00% dd [kernel] [k] __vm_enough_memory 0.00% dd [kernel] [k] unlink_file_vma 0.00% dd [kernel] [k] do_mmap_pgoff 0.00% dd [kernel] [k] page_add_file_rmap 0.00% dd [kernel] [k] anon_vma_unlink 0.00% dd [kernel] [k] do_sync_read 0.00% dd [kernel] [k] rw_verify_area 0.00% dd [kernel] [k] vfs_write 0.00% dd [kernel] [k] vfs_read 0.00% dd [kernel] [k] sys_write 0.00% dd [kernel] [k] fput 0.00% dd [kernel] [k] kernel_read 0.00% dd [kernel] [k] release_open_intent 0.00% dd [kernel] [k] path_put 0.00% dd [kernel] [k] link_path_walk 0.00% dd [kernel] [k] do_path_lookup 0.00% dd [kernel] [k] do_filp_open 0.00% dd [kernel] [k] __d_free 0.00% dd [kernel] [k] spin_unlock 0.00% dd [kernel] [k] touch_atime 0.00% dd [kernel] [k] block_sync_page 0.00% dd [kernel] [k] bio_endio 0.00% dd [kernel] [k] bio_alloc 0.00% dd [kernel] [k] fsnotify 0.00% dd [kernel] [k] inotify_inode_queue_event 0.00% dd [kernel] [k] locks_remove_flock 0.00% dd [kernel] [k] ext4_ext_drop_refs 0.00% dd [kernel] [k] ext4_ext_find_extent 0.00% dd [kernel] [k] security_file_permission 0.00% dd [kernel] [k] security_file_mmap 0.00% dd [kernel] [k] blk_backing_dev_unplug 0.00% dd [kernel] [k] disk_map_sector_rcu 0.00% dd [kernel] [k] cfq_idle_slice_timer 0.00% dd [kernel] [k] _atomic_dec_and_lock 0.00% dd [kernel] [k] radix_tree_next_hole 0.00% dd [kernel] [k] __rb_rotate_left 0.00% dd [kernel] [k] rb_erase 0.00% dd [kernel] [k] strrchr 0.00% dd [kernel] [k] half_md4_transform 0.00% dd [kernel] [k] write_null 0.00% dd [kernel] [k] add_disk_randomness 0.00% dd [kernel] [k] tty_flip_buffer_push 0.00% dd [kernel] [k] get_device 0.00% dd [kernel] [k] scsi_pool_free_command 0.00% dd [kernel] [k] scsi_next_command 0.00% dd /lib/libpthread-2.11.so [.] __pthread_rwlock_wrlock_internal 0.00% dd /lib/libc-2.11.so [.] __init_misc 0.00% dd /lib/ld-2.11.so [.] _dl_start 0.00% dd /lib/ld-2.11.so [.] version_check_doit 0.00% dd /lib/ld-2.11.so [.] _dl_cache_libcmp 0.00% dd /lib/ld-2.11.so [.] _dl_load_cache_lookup 0.00% dd /lib/ld-2.11.so [.] 0x0000000000bc59 0.00% dd /lib/ld-2.11.so [.] _dl_map_object_deps 0.00% dd /lib/ld-2.11.so [.] _dl_sysdep_start 0.00% dd /lib/ld-2.11.so [.] __mmap 0.00% dd /lib/ld-2.11.so [.] strlen # # (For a higher level overview, try: perf report --sort comm,dso) # [-- Attachment #12: perf11.report --] [-- Type: text/plain, Size: 33524 bytes --] # Samples: 39236 # # Overhead Command Shared Object Symbol # ........ ....... ....................... ...... # 13.23% dd [kernel] [k] __copy_to_user_ll 8.96% dd [kernel] [k] do_mpage_readpage 7.42% dd [kernel] [k] get_page_from_freelist 2.78% dd [kernel] [k] generic_file_aio_read 2.76% dd [kernel] [k] __bio_add_page 2.50% dd [kernel] [k] add_to_page_cache_locked 2.48% dd [kernel] [k] __blk_recalc_rq_segments 2.19% dd [kernel] [k] file_read_actor 2.00% dd [kernel] [k] __alloc_pages_nodemask 1.92% perf [kernel] [k] generic_file_buffered_write 1.88% dd [kernel] [k] scsi_dispatch_cmd 1.79% dd [kernel] [k] scsi_request_fn 1.62% dd [kernel] [k] find_get_page 1.60% dd [kernel] [k] __make_request 1.38% dd [kernel] [k] __do_page_cache_readahead 1.23% dd [kernel] [k] put_page 1.15% dd [kernel] [k] zone_watermark_ok 1.14% perf [kernel] [k] __generic_file_aio_write 1.11% dd [kernel] [k] ____pagevec_lru_add 1.11% dd [kernel] [k] __rcu_read_unlock 1.03% dd [kernel] [k] mpage_readpages 0.96% dd [kernel] [k] get_request 0.93% dd [kernel] [k] xtSearch 0.83% dd [kernel] [k] __lru_cache_add 0.83% dd [kernel] [k] add_to_page_cache_lru 0.76% dd [kernel] [k] T.1339 0.75% dd [kernel] [k] next_zones_zonelist 0.71% perf [kernel] [k] iov_iter_advance 0.70% dd [kernel] [k] bio_add_page 0.68% perf [kernel] [k] nobh_write_end 0.65% perf [kernel] [k] generic_file_aio_write 0.64% perf [kernel] [k] vfs_write 0.64% perf [kernel] [k] iov_iter_copy_from_user_atomic 0.62% perf [kernel] [k] sysenter_past_esp 0.60% perf [kernel] [k] __jfs_getxattr 0.60% perf [kernel] [k] do_sync_write 0.59% perf [kernel] [k] nobh_write_begin 0.58% dd [kernel] [k] radix_tree_lookup_slot 0.56% perf [kernel] [k] T.1339 0.55% dd [kernel] [k] kmem_cache_alloc 0.53% perf [kernel] [k] find_get_page 0.53% dd [kernel] [k] radix_tree_preload 0.51% perf [kernel] [k] getnstimeofday 0.50% dd [kernel] [k] xtLookup 0.48% dd [kernel] [k] generic_make_request 0.47% perf [kernel] [k] rw_verify_area 0.47% dd [kernel] [k] __rcu_read_lock 0.44% dd [kernel] [k] blk_end_bidi_request 0.43% perf [kernel] [k] generic_segment_checks 0.42% perf [kernel] [k] acpi_pm_read 0.39% perf [kernel] [k] ea_get 0.38% dd [kernel] [k] radix_tree_lookup 0.37% perf [kernel] [k] jfs_write_begin 0.35% perf [kernel] [k] copy_to_user 0.33% perf [kernel] [k] scsi_dispatch_cmd 0.32% perf [kernel] [k] sys_write 0.32% perf [kernel] [k] iov_iter_fault_in_readable 0.32% dd [kernel] [k] do_page_fault 0.31% dd [kernel] [k] mark_page_accessed 0.31% dd [kernel] [k] _cond_resched 0.30% perf [kernel] [k] balance_dirty_pages_ratelimited_nr 0.30% perf [kernel] [k] __copy_from_user_ll_nozero 0.29% perf [kernel] [k] sys_gettimeofday 0.28% dd [kernel] [k] handle_mm_fault 0.27% dd [kernel] [k] unmap_vmas 0.27% dd [kernel] [k] jfs_get_block 0.26% perf [kernel] [k] __mark_inode_dirty 0.26% dd [kernel] [k] ata_sff_interrupt 0.26% dd [kernel] [k] __get_metapage 0.24% perf [vdso] [.] 0x000000ffffe424 0.24% perf [kernel] [k] grab_cache_page_write_begin 0.23% perf [kernel] [k] __set_page_dirty_buffers 0.23% perf [kernel] [k] file_update_time 0.23% perf [kernel] [k] fsnotify 0.22% perf [kernel] [k] inotify_inode_queue_event 0.21% dd [kernel] [k] __wake_up 0.20% dd [kernel] [k] free_hot_cold_page 0.20% perf [kernel] [k] put_page 0.19% dd [kernel] [k] mpage_end_io_read 0.19% perf [kernel] [k] jfs_getxattr 0.18% perf [kernel] [k] generic_write_sync 0.18% perf [kernel] [k] radix_tree_lookup_slot 0.18% dd [kernel] [k] cfq_set_request 0.18% perf [kernel] [k] inotify_dentry_parent_queue_event 0.17% perf [kernel] [k] fget_light 0.17% perf [kernel] [k] ea_release 0.17% perf [kernel] [k] __rcu_read_unlock 0.17% perf [kernel] [k] file_remove_suid 0.17% dd [kernel] [k] schedule 0.17% perf [kernel] [k] kfree 0.17% dd [kernel] [k] bio_alloc_bioset 0.16% perf [kernel] [k] timespec_trunc 0.16% perf [kernel] [k] extAlloc 0.16% perf [kernel] [k] dbAlloc 0.16% perf [kernel] [k] vsnprintf 0.16% dd [kernel] [k] blk_rq_init 0.15% perf [kernel] [k] do_gettimeofday 0.15% perf [kernel] [k] strncmp 0.15% perf [kernel] [k] find_lock_page 0.15% dd [kernel] [k] mempool_alloc 0.14% perf [kernel] [k] scsi_request_fn 0.14% dd [kernel] [k] release_metapage 0.14% dd [kernel] [k] handle_IRQ_event 0.14% perf [kernel] [k] xtSearch 0.13% perf [kernel] [k] should_remove_suid 0.13% perf [kernel] [k] unlock_page 0.13% perf [kernel] [k] __wake_up_bit 0.13% perf [kernel] [k] __fsnotify_parent 0.13% perf [kernel] [k] cap_inode_need_killpriv 0.13% perf [kernel] [k] strlen 0.12% dd [kernel] [k] __do_softirq 0.12% perf [kernel] [k] jfs_dirty_inode 0.12% dd [kernel] [k] kmem_cache_free 0.12% dd [kernel] [k] __wake_up_bit 0.11% perf [kernel] [k] current_fs_time 0.11% dd [kernel] [k] unlock_page 0.11% perf [kernel] [k] current_kernel_time 0.11% perf [kernel] [k] __set_page_dirty 0.10% perf [kernel] [k] number 0.10% perf [kernel] [k] mark_page_accessed 0.10% perf [kernel] [k] get_page_from_freelist 0.10% perf [kernel] [k] _cond_resched 0.10% dd [kernel] [k] sha_transform 0.10% dd [kernel] [k] ehci_watchdog [ehci_hcd] 0.09% perf [kernel] [k] __rcu_read_lock 0.09% dd [kernel] [k] mpage_alloc 0.09% perf /home/cloos/bin/perf [.] __cmd_record 0.09% perf [kernel] [k] set_page_dirty 0.09% dd [kernel] [k] blk_rq_bio_prep 0.09% dd [kernel] [k] init_request_from_bio 0.08% dd [kernel] [k] blk_queue_bounce 0.08% dd [kernel] [k] submit_bio 0.08% perf [kernel] [k] xtLookup 0.08% perf [kernel] [k] security_file_permission 0.08% perf [kernel] [k] cap_file_permission 0.08% dd [kernel] [k] __do_fault 0.07% perf [kernel] [k] sysenter_do_call 0.07% perf [kernel] [k] mutex_lock 0.07% dd [kernel] [k] do_read_cache_page 0.07% dd [kernel] [k] get_io_context 0.07% dd [kernel] [k] blk_recount_segments 0.07% dd [kernel] [k] blk_update_request 0.07% dd [kernel] [k] rcu_sched_qs 0.06% dd [kernel] [k] ondemand_readahead 0.06% perf [kernel] [k] copy_page_range 0.06% dd [kernel] [k] cfq_cic_lookup 0.06% perf [kernel] [k] jfs_get_block 0.06% perf [kernel] [k] blk_end_bidi_request 0.06% dd [kernel] [k] read_cache_page_async 0.06% dd [kernel] [k] bio_init 0.06% perf [kernel] [k] up_read 0.06% perf [kernel] [k] dbAllocBits 0.06% perf [kernel] [k] format_decode 0.06% perf [kernel] [k] down_read 0.06% dd [kernel] [k] mempool_free 0.05% perf [kernel] [k] __get_metapage 0.05% perf [kernel] [k] security_inode_need_killpriv 0.05% dd [kernel] [k] get_pageblock_flags_group 0.05% perf [kernel] [k] __wake_up 0.05% perf [kernel] [k] schedule 0.05% perf [kernel] [k] mutex_unlock 0.05% dd [kernel] [k] mempool_alloc_slab 0.05% dd [kernel] [k] scsi_init_cmd_errh 0.05% perf [kernel] [k] xtExtend 0.05% dd [kernel] [k] ktime_get_ts 0.05% dd [kernel] [k] read_cache_page 0.05% dd [kernel] [k] find_vma 0.05% dd [kernel] [k] get_request_wait 0.05% dd [kernel] [k] mdio_ctrl_hw 0.05% perf [kernel] [k] handle_IRQ_event 0.05% dd [kernel] [k] down_read_trylock 0.05% dd [kernel] [k] page_cache_async_readahead 0.05% dd [kernel] [k] release_pages 0.05% dd [kernel] [k] vm_normal_page 0.05% dd [kernel] [k] scsi_finish_command 0.04% perf [kernel] [k] mnt_drop_write 0.04% perf [kernel] [k] ata_sff_interrupt 0.04% dd [kernel] [k] anon_vma_prepare 0.04% dd [kernel] [k] bio_phys_segments 0.04% dd [kernel] [k] bvec_alloc_bs 0.04% perf [kernel] [k] __do_fault 0.04% dd [kernel] [k] mix_pool_bytes_extract 0.04% perf [kernel] [k] do_page_fault 0.04% dd [kernel] [k] page_add_new_anon_rmap 0.04% dd [kernel] [k] credit_entropy_bits 0.04% perf [kernel] [k] handle_mm_fault 0.04% perf [kernel] [k] mnt_clone_write 0.04% perf [kernel] [k] dbAllocNext 0.04% perf [kernel] [k] extHint 0.04% dd [kernel] [k] prepare_to_wait_exclusive 0.04% dd [kernel] [k] bio_get_nr_vecs 0.04% dd [kernel] [k] down_read 0.03% dd [kernel] [k] free_page_and_swap_cache 0.03% dd [kernel] [k] blk_unplug 0.03% dd [kernel] [k] preempt_schedule 0.03% perf [kernel] [k] __alloc_pages_nodemask 0.03% perf [kernel] [k] mpage_end_io_read 0.03% dd [kernel] [k] up_read 0.03% dd [kernel] [k] blk_run_queue 0.03% perf [kernel] [k] rcu_sched_qs 0.03% perf [kernel] [k] add_to_page_cache_locked 0.03% perf [kernel] [k] do_read_cache_page 0.03% perf [kernel] [k] kmem_cache_alloc 0.03% dd [kernel] [k] page_evictable 0.03% dd [kernel] [k] mpage_bio_submit 0.03% dd [kernel] [k] current_io_context 0.03% dd [kernel] [k] scsi_device_unbusy 0.03% dd [kernel] [k] scsi_io_completion 0.03% dd [kernel] [k] acpi_pm_read 0.02% perf [kernel] [k] __do_softirq 0.02% perf [kernel] [k] perf_mmap_fault 0.02% perf [kernel] [k] inode_add_bytes 0.02% perf [kernel] [k] __find_get_block_slow 0.02% perf [kernel] [k] dbSplit 0.02% dd [kernel] [k] filemap_fault 0.02% dd [kernel] [k] blk_done_softirq 0.02% dd [kernel] [k] add_timer_randomness 0.02% dd [kernel] [k] sd_done 0.02% perf [kernel] [k] zone_watermark_ok 0.02% perf [kernel] [k] mnt_want_write_file 0.02% perf [kernel] [k] mangle_path 0.02% perf [kernel] [k] dbAllocDmap 0.02% perf [kernel] [k] txBeginAnon 0.02% perf [kernel] [k] strchr 0.02% perf [kernel] [k] ehci_watchdog [ehci_hcd] 0.02% dd [kernel] [k] set_normalized_timespec 0.02% dd [kernel] [k] copy_strings 0.02% dd [kernel] [k] elv_set_request 0.02% dd [kernel] [k] blk_update_bidi_request 0.02% dd [kernel] [k] kref_put 0.02% perf [kernel] [k] add_to_page_cache_lru 0.02% perf [kernel] [k] ____pagevec_lru_add 0.02% perf [kernel] [k] __lru_cache_add 0.02% perf [kernel] [k] alloc_page_buffers 0.02% perf [kernel] [k] release_metapage 0.02% perf /lib/libpthread-2.11.so [.] __libc_write 0.02% dd [kernel] [k] wait_on_page_read 0.02% dd [kernel] [k] page_remove_rmap 0.02% dd [kernel] [k] block_sync_page 0.02% dd [kernel] [k] jfs_readpages 0.02% dd [kernel] [k] scsi_softirq_done 0.02% dd [kernel] [k] __wait_on_bit_lock 0.02% perf [kernel] [k] read_cache_page 0.02% perf [kernel] [k] kmem_cache_free 0.02% perf [kernel] [k] dbAdjTree 0.02% dd [kernel] [k] __lock_page_killable 0.02% dd [kernel] [k] ra_submit 0.02% dd [kernel] [k] link_path_walk 0.02% dd [kernel] [k] bio_fs_destructor 0.02% dd [kernel] [k] generic_unplug_device 0.02% dd [kernel] [k] strnlen_user 0.02% dd [kernel] [k] put_device 0.02% dd [kernel] [k] __scsi_release_buffers 0.02% dd [kernel] [k] scsi_run_queue 0.01% perf [kernel] [k] activate_page 0.01% perf [kernel] [k] do_wp_page 0.01% perf [kernel] [k] prepend 0.01% perf [kernel] [k] alloc_buffer_head 0.01% perf [kernel] [k] blk_update_request 0.01% perf [kernel] [k] scsi_init_cmd_errh 0.01% perf /lib/libc-2.11.so [.] __GI___gettimeofday_internal 0.01% dd [kernel] [k] put_pages_list 0.01% dd [kernel] [k] anon_vma_unlink 0.01% dd [kernel] [k] prio_tree_insert 0.01% dd [kernel] [k] scsi_log_send 0.01% dd [kernel] [k] scsi_put_command 0.01% perf [kernel] [k] read_cache_page_async 0.01% perf [kernel] [k] free_buffer_head 0.01% perf [kernel] [k] req_bio_endio 0.01% perf [kernel] [k] mix_pool_bytes_extract 0.01% dd [kernel] [k] hrtimer_peek_ahead_timers 0.01% dd [kernel] [k] delayacct_end 0.01% dd [kernel] [k] sync_page_killable 0.01% dd [kernel] [k] __d_lookup 0.01% dd [kernel] [k] bio_put 0.01% dd [kernel] [k] bio_alloc 0.01% dd [kernel] [k] req_bio_endio 0.01% dd [kernel] [k] blk_backing_dev_unplug 0.01% dd [kernel] [k] kobject_put 0.01% dd [kernel] [k] copy_to_user 0.01% dd [kernel] [k] get_device 0.01% dd [kernel] [k] io_schedule 0.01% perf [kernel] [k] dup_mm 0.01% perf [kernel] [k] find_vma 0.01% perf [kernel] [k] seq_printf 0.01% perf [kernel] [k] unmap_underlying_metadata 0.01% perf [kernel] [k] blk_done_softirq 0.01% perf [kernel] [k] scsi_io_completion 0.01% perf [kernel] [k] schedule_hrtimeout_range 0.01% dd [kernel] [k] finish_wait 0.01% dd [kernel] [k] generic_segment_checks 0.01% dd [kernel] [k] mempool_free_slab 0.01% dd [kernel] [k] free_hot_page 0.01% dd [kernel] [k] do_wp_page 0.01% dd [kernel] [k] mprotect_fixup 0.01% dd [kernel] [k] sys_close 0.01% dd [kernel] [k] blk_end_request 0.01% dd [kernel] [k] disk_map_sector_rcu 0.01% dd [kernel] [k] _atomic_dec_and_lock 0.01% dd [kernel] [k] kobject_get 0.01% dd [kernel] [k] scsi_pool_free_command 0.01% dd [kernel] [k] scsi_handle_queue_ramp_up 0.01% dd [kernel] [k] scsi_decide_disposition 0.01% dd /lib/ld-2.11.so [.] _dl_map_object_from_fd 0.01% dd /lib/ld-2.11.so [.] do_lookup_x 0.01% perf [kernel] [k] set_normalized_timespec 0.01% perf [kernel] [k] down_read_trylock 0.01% perf [kernel] [k] ktime_get_ts 0.01% perf [kernel] [k] filemap_fault 0.01% perf [kernel] [k] __set_page_dirty_nobuffers 0.01% perf [kernel] [k] next_zones_zonelist 0.01% perf [kernel] [k] page_add_file_rmap 0.01% perf [kernel] [k] do_sys_poll 0.01% perf [kernel] [k] d_path 0.01% perf [kernel] [k] seq_path 0.01% perf [kernel] [k] set_bh_page 0.01% perf [kernel] [k] bio_put 0.01% perf [kernel] [k] bio_fs_destructor 0.01% perf [kernel] [k] show_map_vma 0.01% perf [kernel] [k] xtInsert 0.01% perf [kernel] [k] spin_unlock 0.01% perf [kernel] [k] txLock 0.01% perf [kernel] [k] blk_update_bidi_request 0.01% perf [kernel] [k] _atomic_dec_and_lock 0.01% perf [kernel] [k] kref_put 0.01% perf [kernel] [k] radix_tree_preload 0.01% perf [kernel] [k] rb_insert_color 0.01% perf [kernel] [k] put_dec 0.01% perf [kernel] [k] add_timer_randomness 0.01% perf [kernel] [k] scsi_finish_command 0.01% perf [kernel] [k] __scsi_put_command 0.01% perf [kernel] [k] scsi_put_command 0.01% perf [kernel] [k] scsi_handle_queue_ramp_up 0.01% perf [kernel] [k] scsi_decide_disposition 0.01% perf [kernel] [k] sd_done 0.01% perf [kernel] [k] preempt_schedule 0.01% perf /home/cloos/bin/perf [.] pid_synthesize_mmap_samples 0.01% dd [kernel] [k] sysenter_past_esp 0.01% dd [kernel] [k] try_to_wake_up 0.01% dd [kernel] [k] __call_rcu 0.01% dd [kernel] [k] sync_page 0.01% dd [kernel] [k] lru_cache_add_lru 0.01% dd [kernel] [k] find_mergeable_anon_vma 0.01% dd [kernel] [k] remove_vma 0.01% dd [kernel] [k] mmap_region 0.01% dd [kernel] [k] do_sync_read 0.01% dd [kernel] [k] get_empty_filp 0.01% dd [kernel] [k] path_put 0.01% dd [kernel] [k] dput 0.01% dd [kernel] [k] bio_endio 0.01% dd [kernel] [k] _copy_from_user 0.01% dd [kernel] [k] __sg_free_table 0.01% dd [kernel] [k] scsi_log_completion 0.01% dd [kernel] [k] system_call 0.01% dd /lib/libc-2.11.so [.] _dl_addr 0.01% dd /lib/ld-2.11.so [.] check_match.8476 0.01% dd /lib/ld-2.11.so [.] _dl_relocate_object 0.00% perf [kernel] [k] remove_wait_queue 0.00% perf [kernel] [k] hrtimer_init 0.00% perf [kernel] [k] up_write 0.00% perf [kernel] [k] rcu_process_gp_end 0.00% perf [kernel] [k] check_for_new_grace_period 0.00% perf [kernel] [k] __call_rcu 0.00% perf [kernel] [k] perf_event_task 0.00% perf [kernel] [k] wait_on_page_read 0.00% perf [kernel] [k] mempool_free_slab 0.00% perf [kernel] [k] mempool_free 0.00% perf [kernel] [k] __get_free_pages 0.00% perf [kernel] [k] test_clear_page_writeback 0.00% perf [kernel] [k] release_pages 0.00% perf [kernel] [k] vm_stat_account 0.00% perf [kernel] [k] unmap_region 0.00% perf [kernel] [k] page_remove_rmap 0.00% perf [kernel] [k] page_add_new_anon_rmap 0.00% perf [kernel] [k] anon_vma_prepare 0.00% perf [kernel] [k] anon_vma_link 0.00% perf [kernel] [k] kmem_cache_alloc_notrace 0.00% perf [kernel] [k] link_path_walk 0.00% perf [kernel] [k] do_path_lookup 0.00% perf [kernel] [k] free_poll_entry 0.00% perf [kernel] [k] poll_freewait 0.00% perf [kernel] [k] sys_poll 0.00% perf [kernel] [k] __d_path 0.00% perf [kernel] [k] dput 0.00% perf [kernel] [k] dup_fd 0.00% perf [kernel] [k] alloc_fd 0.00% perf [kernel] [k] seq_read 0.00% perf [kernel] [k] bio_endio 0.00% perf [kernel] [k] bio_free 0.00% perf [kernel] [k] proc_pid_make_inode 0.00% perf [kernel] [k] proc_pid_status 0.00% perf [kernel] [k] dbAllocAG 0.00% perf [kernel] [k] security_vm_enough_memory 0.00% perf [kernel] [k] string 0.00% perf [kernel] [k] strnlen 0.00% perf [kernel] [k] cmpxchg8b 0.00% perf [kernel] [k] credit_entropy_bits 0.00% perf [kernel] [k] get_device 0.00% perf [kernel] [k] scsi_log_completion 0.00% perf [kernel] [k] scsi_sg_free 0.00% perf [kernel] [k] __scsi_release_buffers 0.00% perf [kernel] [k] scsi_device_unbusy 0.00% perf [kernel] [k] scsi_softirq_done 0.00% perf [kernel] [k] down_write 0.00% perf /lib/libpthread-2.11.so [.] __write_nocancel 0.00% perf /lib/libc-2.11.so [.] _IO_vfprintf_internal 0.00% perf /lib/libc-2.11.so [.] ptmalloc_unlock_all 0.00% perf /home/cloos/bin/perf [.] hex2u64 0.00% dd [kernel] [k] nommu_map_page 0.00% dd [kernel] [k] init_fpu 0.00% dd [kernel] [k] pgd_alloc 0.00% dd [kernel] [k] mm_release 0.00% dd [kernel] [k] timespec_trunc 0.00% dd [kernel] [k] run_timer_softirq 0.00% dd [kernel] [k] __queue_work 0.00% dd [kernel] [k] do_futex 0.00% dd [kernel] [k] acct_collect 0.00% dd [kernel] [k] rcu_bh_qs 0.00% dd [kernel] [k] check_for_new_grace_period 0.00% dd [kernel] [k] __delayacct_blkio_end 0.00% dd [kernel] [k] perf_event_tid 0.00% dd [kernel] [k] perf_output_copy 0.00% dd [kernel] [k] perf_output_begin 0.00% dd [kernel] [k] perf_event_mmap_ctx 0.00% dd [kernel] [k] __lock_page 0.00% dd [kernel] [k] vma_prio_tree_add 0.00% dd [kernel] [k] follow_page 0.00% dd [kernel] [k] __get_user_pages 0.00% dd [kernel] [k] get_user_pages 0.00% dd [kernel] [k] vm_stat_account 0.00% dd [kernel] [k] arch_get_unmapped_area_topdown 0.00% dd [kernel] [k] find_vma_prev 0.00% dd [kernel] [k] __vma_link_file 0.00% dd [kernel] [k] __vma_link 0.00% dd [kernel] [k] unmap_region 0.00% dd [kernel] [k] vma_adjust 0.00% dd [kernel] [k] __split_vma 0.00% dd [kernel] [k] do_munmap 0.00% dd [kernel] [k] vma_merge 0.00% dd [kernel] [k] do_mmap_pgoff 0.00% dd [kernel] [k] sys_mmap_pgoff 0.00% dd [kernel] [k] exit_mmap 0.00% dd [kernel] [k] __anon_vma_link 0.00% dd [kernel] [k] page_add_file_rmap 0.00% dd [kernel] [k] kfree 0.00% dd [kernel] [k] filp_close 0.00% dd [kernel] [k] __dentry_open 0.00% dd [kernel] [k] nameidata_to_filp 0.00% dd [kernel] [k] do_sys_open 0.00% dd [kernel] [k] rw_verify_area 0.00% dd [kernel] [k] vfs_write 0.00% dd [kernel] [k] sys_read 0.00% dd [kernel] [k] sys_write 0.00% dd [kernel] [k] fget_light 0.00% dd [kernel] [k] __fput 0.00% dd [kernel] [k] sys_fstat64 0.00% dd [kernel] [k] open_exec 0.00% dd [kernel] [k] do_execve 0.00% dd [kernel] [k] acl_permission_check 0.00% dd [kernel] [k] exec_permission 0.00% dd [kernel] [k] generic_permission 0.00% dd [kernel] [k] path_init 0.00% dd [kernel] [k] release_open_intent 0.00% dd [kernel] [k] getname 0.00% dd [kernel] [k] __d_path 0.00% dd [kernel] [k] touch_atime 0.00% dd [kernel] [k] alloc_fd 0.00% dd [kernel] [k] bio_free 0.00% dd [kernel] [k] inotify_dentry_parent_queue_event 0.00% dd [kernel] [k] locks_remove_flock 0.00% dd [kernel] [k] load_script 0.00% dd [kernel] [k] load_elf_binary 0.00% dd [kernel] [k] cfq_idle_slice_timer 0.00% dd [kernel] [k] prio_tree_replace 0.00% dd [kernel] [k] __rb_rotate_left 0.00% dd [kernel] [k] __rb_rotate_right 0.00% dd [kernel] [k] half_md4_transform 0.00% dd [kernel] [k] n_tty_write 0.00% dd [kernel] [k] tty_insert_flip_string 0.00% dd [kernel] [k] __scsi_put_command 0.00% dd [kernel] [k] scsi_sg_free 0.00% dd [kernel] [k] scsi_next_command 0.00% dd [kernel] [k] e100_exec_cmd 0.00% dd [kernel] [k] e100_enable_irq 0.00% dd [kernel] [k] net_rx_action 0.00% dd [kernel] [k] down_write 0.00% dd /lib/libpthread-2.11.so [.] 0x00000000010806 0.00% dd /lib/libc-2.11.so [.] _nl_intern_locale_data 0.00% dd /lib/libc-2.11.so [.] 0x00000000021f1a 0.00% dd /lib/libc-2.11.so [.] _nl_normalize_codeset 0.00% dd /lib/libc-2.11.so [.] __GI_getenv 0.00% dd /lib/libc-2.11.so [.] __GI___printf_fp 0.00% dd /lib/libc-2.11.so [.] __GI_strstr 0.00% dd /lib/libc-2.11.so [.] __strchrnul 0.00% dd /lib/libc-2.11.so [.] intel_02_known_compare 0.00% dd /lib/libc-2.11.so [.] __GI___libc_write 0.00% dd /lib/libc-2.11.so [.] __GI___register_atfork 0.00% dd /lib/ld-2.11.so [.] _dl_cache_libcmp 0.00% dd /lib/ld-2.11.so [.] _dl_load_cache_lookup 0.00% dd /lib/ld-2.11.so [.] _dl_lookup_symbol_x 0.00% dd /lib/ld-2.11.so [.] _dl_fixup 0.00% dd /lib/ld-2.11.so [.] match_symbol 0.00% dd /lib/ld-2.11.so [.] munmap 0.00% dd /lib/ld-2.11.so [.] strcmp 0.00% dd /lib/ld-2.11.so [.] strlen 0.00% dd ffffe415 [.] 0x000000ffffe415 # # (For a higher level overview, try: perf report --sort comm,dso) # [-- Attachment #13: Type: text/plain, Size: 75 bytes --] -JimC -- James Cloos <cloos@jhcloos.com> OpenPGP: 1024D/ED7DAEA6 ^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [Regression] Filesystem I/O is CPU-bound in rc7 and rc8 2010-02-15 15:45 ` Chris Mason 2010-02-15 19:27 ` James Cloos @ 2010-02-17 20:04 ` James Cloos 2010-02-19 21:02 ` Dave Airlie 1 sibling, 1 reply; 13+ messages in thread From: James Cloos @ 2010-02-17 20:04 UTC (permalink / raw) To: linux-kernel Cc: linux-fsdevel, jfs-discussion, linux-ext4, linux-btrfs, Chris Mason While getting re-aquainted with perf, and after upgrading to the current version, I see that do_page_fault, unmap_vmas, get_page_from_freelist, handle_mm_fault, __do_fault and T.1339 tend to get the most time when the kernel is spinning. T.1339 is in this part of kallsyms: ,----< grep -E -C9 ^c1027750 /proc/kallsyms > | c10266a0 T sched_setscheduler_nocheck | c10266c0 T sched_setscheduler | c10266e0 t do_sched_setscheduler | c1026770 T sys_sched_setparam | c1026790 T sys_sched_setscheduler | c10267c0 T sched_fork | c1026900 T task_oncpu_function_call | c1026960 T print_cfs_rq | c1027640 T scheduler_tick | c1027750 t T.1339 | c10277f0 T schedule_tail | c1027830 t ftrace_raw_output_sched_kthread_stop | c1027930 t ftrace_raw_output_sched_kthread_stop_ret | c1027a30 t ftrace_raw_output_sched_wait_task | c1027b40 t ftrace_raw_output_sched_switch | c1027c90 t ftrace_raw_output_sched_migrate_task | c1027da0 t ftrace_raw_output_sched_process_wait | c1027eb0 t ftrace_raw_output_sched_process_fork | c1027fc0 t ftrace_raw_output_sched_stat_runtime `---- suggesting that T.1339 is part of sched. This leaves the impression that the issue is related to either scheduling or paging. I don't see any commits in the rc6..rc7 timeframe which stand out as likely suspects. -JimC -- James Cloos <cloos@jhcloos.com> OpenPGP: 1024D/ED7DAEA6 ------------------------------------------------------------------------------ SOLARIS 10 is the OS for Data Centers - provides features such as DTrace, Predictive Self Healing and Award Winning ZFS. Get Solaris 10 NOW http://p.sf.net/sfu/solaris-dev2dev ^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [Regression] Filesystem I/O is CPU-bound in rc7 and rc8 2010-02-17 20:04 ` James Cloos @ 2010-02-19 21:02 ` Dave Airlie 2010-02-19 21:37 ` James Cloos 0 siblings, 1 reply; 13+ messages in thread From: Dave Airlie @ 2010-02-19 21:02 UTC (permalink / raw) To: James Cloos Cc: linux-kernel, Chris Mason, linux-fsdevel, linux-ext4, linux-btrfs, jfs-discussion On Thu, Feb 18, 2010 at 6:04 AM, James Cloos <cloos@jhcloos.com> wrote: > While getting re-aquainted with perf, and after upgrading to the current > version, I see that do_page_fault, unmap_vmas, get_page_from_freelist, > handle_mm_fault, __do_fault and T.1339 tend to get the most time when the > kernel is spinning. dmesg? lspci -vv? We have an AGP related issue with WC/UC paging that might be related, but I'd need more info. Dave. ^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [Regression] Filesystem I/O is CPU-bound in rc7 and rc8 2010-02-19 21:02 ` Dave Airlie @ 2010-02-19 21:37 ` James Cloos 2010-02-19 22:03 ` Dave Airlie 0 siblings, 1 reply; 13+ messages in thread From: James Cloos @ 2010-02-19 21:37 UTC (permalink / raw) To: Dave Airlie Cc: linux-kernel, Chris Mason, linux-fsdevel, linux-ext4, linux-btrfs, jfs-discussion >>>>> "Dave" == Dave Airlie <airlied@gmail.com> writes: Dave> On Thu, Feb 18, 2010 at 6:04 AM, James Cloos <cloos@jhcloos.com> wrote: >> While getting re-aquainted with perf, and after upgrading to the current >> version, I see that do_page_fault, unmap_vmas, get_page_from_freelist, >> handle_mm_fault, __do_fault and T.1339 tend to get the most time when the >> kernel is spinning. Dave> We have an AGP related issue with WC/UC paging that might be related, Dave> but I'd need more info. OK. I do use radeon kms (r100). On a lark, I tried out a non-kms boot this morning, but X never started; I was going to update all of the user-mode code (dri2, mesa, x, the ati driver, etc) before tyring again to check whether kms was required to hit the issue. That takes a few hours to do on this box. Dave> dmesg? The only reelvant part of dmesg are of the form: Feb 14 01:37:27 [kernel] [ 3720.582130] INFO: task btrfs-transacti:2527 blocked for more than 120 seconds. Feb 14 01:37:27 [kernel] [ 3720.582140] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Feb 14 01:37:27 [kernel] [ 3720.582149] btrfs-transac D da2ba5b0 0 2527 2 0x00000000 Feb 14 01:37:27 [kernel] [ 3720.582163] da33af60 00000046 c170f240 da2ba5b0 037a730a 00000343 da2ba854 da2ba5b0 Feb 14 01:37:27 [kernel] [ 3720.582181] df9557f4 da2ba5b0 df9557f8 da33af84 c152c406 df9557f8 df9557f8 da2ba5b0 Feb 14 01:37:27 [kernel] [ 3720.582199] ffffffff da212000 da33afa0 da2ba5b0 da33af8c c152bf81 da33afc0 c11b4ecc Feb 14 01:37:27 [kernel] [ 3720.582216] Call Trace: Feb 14 01:37:27 [kernel] [ 3720.582241] [<c152c406>] __mutex_lock_slowpath+0x96/0x120 Feb 14 01:37:27 [kernel] [ 3720.582253] [<c152bf81>] mutex_lock+0x11/0x20 Feb 14 01:37:27 [kernel] [ 3720.582269] [<c11b4ecc>] transaction_kthread+0xcc/0x1e0 Feb 14 01:37:27 [kernel] [ 3720.582281] [<c152b643>] ? preempt_schedule+0x33/0x50 Feb 14 01:37:27 [kernel] [ 3720.582292] [<c11b4e00>] ? transaction_kthread+0x0/0x1e0 Feb 14 01:37:27 [kernel] [ 3720.582306] [<c104c684>] kthread+0x74/0x80 Feb 14 01:37:27 [kernel] [ 3720.582316] [<c104c610>] ? kthread+0x0/0x80 Feb 14 01:37:27 [kernel] [ 3720.582328] [<c1003356>] kernel_thread_helper+0x6/0x10 Dave> lspci -vv? 00:00.0 Host bridge: Intel Corporation 82815 815 Chipset Host Bridge and Memory Controller Hub (rev 04) Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx- Latency: 0 Region 0: Memory at e8000000 (32-bit, prefetchable) [size=64M] Capabilities: [88] Vendor Specific Information <?> Capabilities: [a0] AGP version 2.0 Status: RQ=32 Iso- ArqSz=0 Cal=0 SBA+ ITACoh- GART64- HTrans- 64bit- FW- AGP3- Rate=x1,x2,x4 Command: RQ=1 ArqSz=0 Cal=0 SBA+ AGP+ GART64- 64bit- FW- Rate=x4 Kernel driver in use: agpgart-intel 00:01.0 PCI bridge: Intel Corporation 82815 815 Chipset AGP Bridge (rev 04) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap- 66MHz+ UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 32 Bus: primary=00, secondary=01, subordinate=01, sec-latency=32 I/O behind bridge: 0000c000-0000cfff Memory behind bridge: fc000000-fdffffff Prefetchable memory behind bridge: e0000000-e7ffffff Secondary status: 66MHz+ FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR+ BridgeCtl: Parity- SERR- NoISA+ VGA+ MAbort- >Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 03) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Bus: primary=00, secondary=02, subordinate=10, sec-latency=32 I/O behind bridge: 0000d000-0000ffff Memory behind bridge: f2000000-fbffffff Prefetchable memory behind bridge: 20000000-27ffffff Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR- BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- 00:1f.0 ISA bridge: Intel Corporation 82801BAM ISA Bridge (LPC) (rev 03) Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Kernel modules: intel-rng 00:1f.1 IDE interface: Intel Corporation 82801BAM IDE U100 Controller (rev 03) (prog-if 80 [Master]) Subsystem: Intel Corporation Device 4541 Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Region 0: [virtual] Memory at 000001f0 (32-bit, non-prefetchable) [size=8] Region 1: [virtual] Memory at 000003f0 (type 3, non-prefetchable) [size=1] Region 2: [virtual] Memory at 00000170 (32-bit, non-prefetchable) [size=8] Region 3: [virtual] Memory at 00000370 (type 3, non-prefetchable) [size=1] Region 4: I/O ports at bfa0 [size=16] Kernel driver in use: ata_piix 00:1f.2 USB Controller: Intel Corporation 82801BA/BAM USB Controller #1 (rev 03) (prog-if 00 [UHCI]) Subsystem: Intel Corporation Device 4541 Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin D routed to IRQ 10 Region 4: I/O ports at bce0 [size=32] Kernel driver in use: uhci_hcd Kernel modules: uhci-hcd 01:00.0 VGA compatible controller: ATI Technologies Inc Radeon Mobility M7 LW [Radeon Mobility 7500] (prog-if 00 [VGA controller]) Subsystem: Dell Radeon Mobility M7 LW (Dell Inspiron 8100) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop+ ParErr- Stepping+ SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 32 (2000ns min), Cache Line Size: 32 bytes Interrupt: pin A routed to IRQ 11 Region 0: Memory at e0000000 (32-bit, prefetchable) [size=128M] Region 1: I/O ports at cc00 [size=256] Region 2: Memory at fcff0000 (32-bit, non-prefetchable) [size=64K] Expansion ROM at fc000000 [disabled] [size=128K] Capabilities: [58] AGP version 2.0 Status: RQ=48 Iso- ArqSz=0 Cal=0 SBA+ ITACoh- GART64- HTrans- 64bit- FW- AGP3- Rate=x1,x2,x4 Command: RQ=32 ArqSz=0 Cal=0 SBA+ AGP+ GART64- 64bit- FW- Rate=x4 Capabilities: [50] Power Management version 2 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Kernel driver in use: radeon Kernel modules: radeonfb 02:03.0 Multimedia audio controller: ESS Technology ES1983S Maestro-3i PCI Audio Accelerator (rev 10) Subsystem: Dell ES1983S Maestro-3i (Dell Inspiron 8100) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 32 (500ns min, 6000ns max) Interrupt: pin A routed to IRQ 5 Region 0: I/O ports at dc00 [size=256] Region 1: Memory at f6ffe000 (32-bit, non-prefetchable) [size=8K] Capabilities: [c0] Power Management version 2 Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA PME(D0-,D1+,D2+,D3hot+,D3cold-) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Kernel driver in use: Maestro3 02:06.0 PCI bridge: Actiontec Electronics Inc Mini-PCI bridge (rev 11) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 32, Cache Line Size: 32 bytes Bus: primary=02, secondary=08, subordinate=08, sec-latency=32 I/O behind bridge: 0000e000-0000efff Memory behind bridge: f8000000-f9ffffff Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- <SERR- <PERR- BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: [80] Power Management version 2 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1+,D2+,D3hot+,D3cold+) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Bridge: PM- B3+ Capabilities: [90] CompactPCI hot-swap <?> 02:0f.0 CardBus bridge: Texas Instruments PCI4451 PC card Cardbus Controller Subsystem: Dell PCI4451 PC card CardBus Controller (Inspiron 8100) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 168, Cache Line Size: 32 bytes Interrupt: pin A routed to IRQ 10 Region 0: Memory at f2000000 (32-bit, non-prefetchable) [size=4K] Bus: primary=02, secondary=09, subordinate=0c, sec-latency=176 Memory window 0: 20000000-23fff000 (prefetchable) Memory window 1: 28000000-2bfff000 I/O window 0: 0000d000-0000d0ff I/O window 1: 0000d400-0000d4ff BridgeCtl: Parity- SERR- ISA- VGA- MAbort- >Reset+ 16bInt+ PostWrite+ 16-bit legacy interface ports at 0001 Kernel driver in use: yenta_cardbus 02:0f.1 CardBus bridge: Texas Instruments PCI4451 PC card Cardbus Controller Subsystem: Dell PCI4451 PC card CardBus Controller (Inspiron 8100) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 168, Cache Line Size: 32 bytes Interrupt: pin A routed to IRQ 10 Region 0: Memory at f2001000 (32-bit, non-prefetchable) [size=4K] Bus: primary=02, secondary=0d, subordinate=10, sec-latency=176 Memory window 0: 24000000-27fff000 (prefetchable) Memory window 1: 2c000000-2ffff000 I/O window 0: 0000d800-0000d8ff I/O window 1: 0000f000-0000f0ff BridgeCtl: Parity- SERR- ISA- VGA- MAbort- >Reset- 16bInt- PostWrite+ 16-bit legacy interface ports at 0001 Kernel driver in use: yenta_cardbus 02:0f.2 FireWire (IEEE 1394): Texas Instruments PCI4451 IEEE-1394 Controller (prog-if 10 [OHCI]) Subsystem: Dell PCI4451 IEEE-1394 Controller (Dell Inspiron 8100) Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 32 (500ns min, 1000ns max), Cache Line Size: 32 bytes Interrupt: pin A routed to IRQ 10 Region 0: Memory at f6ffd800 (32-bit, non-prefetchable) [size=2K] Region 1: Memory at f6ff8000 (32-bit, non-prefetchable) [size=16K] Capabilities: [44] Power Management version 2 Flags: PMEClk- DSI- D1- D2+ AuxCurrent=0mA PME(D0-,D1-,D2+,D3hot+,D3cold-) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Kernel driver in use: firewire_ohci 08:04.0 Ethernet controller: Intel Corporation 82557/8/9/0/1 Ethernet Pro 100 (rev 08) Subsystem: Actiontec Electronics Inc EtherExpress PRO/100B (TX) (MiniPCI Ethernet+Modem) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 32 (2000ns min, 14000ns max), Cache Line Size: 32 bytes Interrupt: pin A routed to IRQ 10 Region 0: Memory at f8fff000 (32-bit, non-prefetchable) [size=4K] Region 1: I/O ports at ecc0 [size=64] Region 2: Memory at f8e00000 (32-bit, non-prefetchable) [size=1M] Expansion ROM at f9000000 [disabled] [size=1M] Capabilities: [dc] Power Management version 2 Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=2 PME- Kernel driver in use: e100 08:08.0 Communication controller: Agere Systems WinModem 56k (rev 01) Subsystem: Actiontec Electronics Inc LT WinModem 56k (MiniPCI Ethernet+Modem) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 (63000ns min, 3500ns max) Interrupt: pin A routed to IRQ 10 Region 0: Memory at f8ffec00 (32-bit, non-prefetchable) [size=256] Region 1: I/O ports at ecb8 [size=8] Region 2: I/O ports at e800 [size=256] Capabilities: [f8] Power Management version 2 Flags: PMEClk- DSI+ D1- D2+ AuxCurrent=0mA PME(D0-,D1-,D2+,D3hot+,D3cold+) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- 0d:00.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 62) (prog-if 00 [UHCI]) Subsystem: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 22, Cache Line Size: 32 bytes Interrupt: pin A routed to IRQ 10 Region 1: Memory at 2c000800 (32-bit, non-prefetchable) [size=256] Region 4: I/O ports at d880 [size=32] Capabilities: [80] Power Management version 2 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Kernel driver in use: uhci_hcd Kernel modules: uhci-hcd 0d:00.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 62) (prog-if 00 [UHCI]) Subsystem: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 22, Cache Line Size: 32 bytes Interrupt: pin A routed to IRQ 10 Region 1: Memory at 2c000900 (32-bit, non-prefetchable) [size=256] Region 4: I/O ports at d8a0 [size=32] Capabilities: [80] Power Management version 2 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Kernel driver in use: uhci_hcd Kernel modules: uhci-hcd 0d:00.2 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 65) (prog-if 20 [EHCI]) Subsystem: VIA Technologies, Inc. USB 2.0 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 22, Cache Line Size: 32 bytes Interrupt: pin A routed to IRQ 10 Region 0: Memory at 2c000a00 (32-bit, non-prefetchable) [size=256] Region 1: Memory at 2c000b00 (32-bit, non-prefetchable) [size=256] Capabilities: [80] Power Management version 2 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Kernel driver in use: ehci_hcd Kernel modules: ehci-hcd 0d:00.3 FireWire (IEEE 1394): VIA Technologies, Inc. VT6306/7/8 [Fire II(M)] IEEE 1394 OHCI Controller (rev 80) (prog-if 10 [OHCI]) Subsystem: VIA Technologies, Inc. VT6306/7/8 [Fire II(M)] IEEE 1394 OHCI Controller Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping+ SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 64 (8000ns max), Cache Line Size: 32 bytes Interrupt: pin A routed to IRQ 10 Region 0: Memory at 2c000000 (32-bit, non-prefetchable) [size=2K] Region 1: I/O ports at d800 [size=128] Capabilities: [50] Power Management version 2 Flags: PMEClk- DSI- D1- D2+ AuxCurrent=0mA PME(D0-,D1-,D2+,D3hot+,D3cold+) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Kernel driver in use: firewire_ohci -JimC -- James Cloos <cloos@jhcloos.com> OpenPGP: 1024D/ED7DAEA6 ^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [Regression] Filesystem I/O is CPU-bound in rc7 and rc8 2010-02-19 21:37 ` James Cloos @ 2010-02-19 22:03 ` Dave Airlie 2010-02-20 15:59 ` James Cloos 2010-02-21 2:12 ` James Cloos 0 siblings, 2 replies; 13+ messages in thread From: Dave Airlie @ 2010-02-19 22:03 UTC (permalink / raw) To: James Cloos Cc: linux-kernel, Chris Mason, linux-fsdevel, linux-ext4, linux-btrfs, jfs-discussion > > OK. I do use radeon kms (r100). I've just sent a pull req to Linus http://bugzilla.kernel.org/show_bug.cgi?id=15328 this http://bugzilla.kernel.org/attachment.cgi?id=25107 patch. The relevant piece of dmesg is at the top ;-), where it states if you have PAT support or not, but I suspect if you try this patch it'll fix it. Dave. ^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [Regression] Filesystem I/O is CPU-bound in rc7 and rc8 2010-02-19 22:03 ` Dave Airlie @ 2010-02-20 15:59 ` James Cloos 2010-02-21 2:12 ` James Cloos 1 sibling, 0 replies; 13+ messages in thread From: James Cloos @ 2010-02-20 15:59 UTC (permalink / raw) To: Dave Airlie Cc: linux-kernel, Chris Mason, linux-fsdevel, linux-ext4, linux-btrfs, jfs-discussion >>>>> "Dave" == Dave Airlie <airlied@gmail.com> writes: >> >> OK. I do use radeon kms (r100). Dave> I've just sent a pull req to Linus Dave> http://bugzilla.kernel.org/show_bug.cgi?id=15328 Dave> this Dave> http://bugzilla.kernel.org/attachment.cgi?id=25107 Dave> patch. I'll give that a try as soon as I can schedule a reboot. Dave> The relevant piece of dmesg is at the top ;-), where Dave> it states if you have PAT support or not, but I Dave> suspect if you try this patch it'll fix it. Oh. I thought you were referring to errors.... Anyway, no, the p3m does not support PAT: [ 0.000000] PAT not supported by CPU. -JimC -- James Cloos <cloos@jhcloos.com> OpenPGP: 1024D/ED7DAEA6 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [Regression] Filesystem I/O is CPU-bound in rc7 and rc8 2010-02-19 22:03 ` Dave Airlie 2010-02-20 15:59 ` James Cloos @ 2010-02-21 2:12 ` James Cloos 1 sibling, 0 replies; 13+ messages in thread From: James Cloos @ 2010-02-21 2:12 UTC (permalink / raw) To: Dave Airlie Cc: linux-kernel, Chris Mason, linux-fsdevel, linux-ext4, linux-btrfs, jfs-discussion >>>>> "Dave" == Dave Airlie <airlied@gmail.com> writes: Dave> I've just sent a pull req to Linus Dave> http://bugzilla.kernel.org/show_bug.cgi?id=15328 Dave> this Dave> http://bugzilla.kernel.org/attachment.cgi?id=25107 Dave> patch. That patch does indeed fix the regression here. Thanks! It looks like my report is a dup of bug 15328. -JimC -- James Cloos <cloos@jhcloos.com> OpenPGP: 1024D/ED7DAEA6 ^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [Regression] Filesystem I/O is CPU-bound in rc7 and rc8 2010-02-14 3:11 [Regression] Filesystem I/O is CPU-bound in rc7 and rc8 James Cloos ` (2 preceding siblings ...) 2010-02-15 15:45 ` Chris Mason @ 2010-02-19 21:22 ` Mike Fedyk 2010-02-19 21:44 ` James Cloos 3 siblings, 1 reply; 13+ messages in thread From: Mike Fedyk @ 2010-02-19 21:22 UTC (permalink / raw) To: James Cloos Cc: linux-kernel, linux-fsdevel, linux-ext4, linux-btrfs, jfs-discussion On Sat, Feb 13, 2010 at 7:11 PM, James Cloos <cloos@jhcloos.com> wrote: > Sometime between rc6 and rc7 all filesystem I/O started using 100% CPU, > usually on the order of 60% sys, 40% user. > > I've tried this with each of ext4, jfs and btrfs filesystems. All show > the same issue. > Are you sure you're not running with any of the debugging options enabled? I see the same, but I have debugging enabled (rawhide kernel). > Using dd(1) to read from the block specials directly works as well and > as fast as it always has; only reading or writing to mounted filesystems > is affected. > > Box is 32-bit x86, PentiumIII-M; drives are ide using libata. > > If the btrfs fs is mounted, the slowdown is enought to trigger the > hung_task call trace (120s) on the btrfs-transac process. > > But the regression is just as apparent when only jfs and ext4 are mounted. > > The only filesystems I've found which avoid the regression are tmpfs and > devtmpfs. > > I didn't have time to write up a report when I noticed this in rc7 but > had to boot back into rc6 for work. > > Some of the commits since rc7 looked like they might have addressed this > regression, but it persists in rc8. > > -JimC > -- > James Cloos <cloos@jhcloos.com> OpenPGP: 1024D/ED7DAEA6 > -- > To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [Regression] Filesystem I/O is CPU-bound in rc7 and rc8 2010-02-19 21:22 ` Mike Fedyk @ 2010-02-19 21:44 ` James Cloos 0 siblings, 0 replies; 13+ messages in thread From: James Cloos @ 2010-02-19 21:44 UTC (permalink / raw) To: Mike Fedyk Cc: linux-kernel, linux-fsdevel, linux-ext4, linux-btrfs, jfs-discussion >>>>> "Mike" == Mike Fedyk <mfedyk@mikefedyk.com> writes: Mike> On Sat, Feb 13, 2010 at 7:11 PM, James Cloos <cloos@jhcloos.com> wrote: >> Sometime between rc6 and rc7 all filesystem I/O started using 100% CPU, >> usually on the order of 60% sys, 40% user. >> >> I've tried this with each of ext4, jfs and btrfs filesystems. All show >> the same issue. >> Mike> Are you sure you're not running with any of the debugging options Mike> enabled? I see the same, but I have debugging enabled (rawhide Mike> kernel). There are some: CONFIG_HAVE_DMA_API_DEBUG=y CONFIG_X86_DEBUGCTLMSR=y CONFIG_CFG80211_DEBUGFS=y CONFIG_MAC80211_DEBUGFS=y CONFIG_PNP_DEBUG_MESSAGES=y CONFIG_FIREWIRE_OHCI_DEBUG=y CONFIG_USB_SERIAL_DEBUG=m CONFIG_DEBUG_FS=y CONFIG_DEBUG_KERNEL=y CONFIG_SCHED_DEBUG=y CONFIG_DEBUG_BUGVERBOSE=y CONFIG_DEBUG_MEMORY_INIT=y CONFIG_DEBUG_STACKOVERFLOW=y CONFIG_KEYS_DEBUG_PROC_KEYS=y I forgot about /proc/sched_debug, but am back at -rc6 right now; I'll post an example of /proc/sched_debug output during the issue when I'm next in rc8 or later. -JimC -- James Cloos <cloos@jhcloos.com> OpenPGP: 1024D/ED7DAEA6 -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 13+ messages in thread
end of thread, other threads:[~2010-02-21 2:12 UTC | newest] Thread overview: 13+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2010-02-14 3:11 [Regression] Filesystem I/O is CPU-bound in rc7 and rc8 James Cloos 2010-02-14 16:40 ` James Cloos 2010-02-14 23:12 ` Rafael J. Wysocki 2010-02-15 15:45 ` Chris Mason 2010-02-15 19:27 ` James Cloos 2010-02-17 20:04 ` James Cloos 2010-02-19 21:02 ` Dave Airlie 2010-02-19 21:37 ` James Cloos 2010-02-19 22:03 ` Dave Airlie 2010-02-20 15:59 ` James Cloos 2010-02-21 2:12 ` James Cloos 2010-02-19 21:22 ` Mike Fedyk 2010-02-19 21:44 ` James Cloos
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