Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression

Huang, Ying
2016-08-11T21:16:12Z

Christoph Hellwig <hch@lst.de> writes:

> On Thu, Aug 11, 2016 at 12:51:31PM -0700, Linus Torvalds wrote:
>> Ok. It does seem to also reset the active file page counts back, so
>> that part did seem to be related, but yeah, from a performance
>> standpoint that was clearly not a major issue.
>>
>> Let's hope Dave can figure out something based on his numbers, because
>> I'm out of ideas. Or maybe it's the pagefault-atomic thing that
>> Christoph was looking at.
>
> I can't really think of any reason why the pagefaul_disable() would
> sіgnificantly change performance. Anyway, the patch for the is below
> (on top of the previous mark_page_accessed() one), so feel free to
> re-run the test with it. It would also be nice to see the profiles
> with the two patches applied.
>
> commit 43106eea246074acc4bb7d12fdb91f58002f52ed
> Author: Christoph Hellwig <hch@lst.de>
> Date: Thu Aug 11 10:41:40 2016 -0700
>
> fs: remove superflous pagefault_disable from iomap_write_actor
>
> No idea where this really came from, generic_perform_write only briefly
> did a pagefaul_disable when trying a different prefault scheme.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
>
> diff --git a/fs/iomap.c b/fs/iomap.c
> index f39c318..74712e2 100644
> --- a/fs/iomap.c
> +++ b/fs/iomap.c
> @@ -194,9 +194,7 @@ again:
> if (mapping_writably_mapped(inode->i_mapping))
> flush_dcache_page(page);
>
> - pagefault_disable();
> copied = iov_iter_copy_from_user_atomic(page, i, offset, bytes);
> - pagefault_enable();
>
> flush_dcache_page(page);
>

Test result is as follow,

commit e129b86bfacc8bb517b843fca41d0d179de7a4ca
Author: Christoph Hellwig <hch@lst.de>
Date: Thu Aug 11 10:41:40 2016 -0700

fs: remove superflous pagefault_disable from iomap_write_actor

No idea where this really came from, generic_perform_write only briefly
did a pagefaul_disable when trying a different prefault scheme.

Signed-off-by: Christoph Hellwig <hch@lst.de>

diff --git a/fs/iomap.c b/fs/iomap.c
index f39c318..74712e2 100644
--- a/fs/iomap.c
+++ b/fs/iomap.c
@@ -194,9 +194,7 @@ again:
if (mapping_writably_mapped(inode->i_mapping))
flush_dcache_page(page);

- pagefault_disable();
copied = iov_iter_copy_from_user_atomic(page, i, offset, bytes);
- pagefault_enable();

flush_dcache_page(page);

=========================================================================================
compiler/cpufreq_governor/debug-setup/disk/fs/kconfig/load/rootfs/tbox_group/test/testcase:
gcc-6/performance/profile/1BRD_48G/xfs/x86_64-rhel/3000/debian-x86_64-2015-02-07.cgz/ivb44/disk_wrt/aim7

commit:
f0c6bcba74ac51cb77aadb33ad35cb2dc1ad1506
68a9f5e7007c1afa2cf6830b690a90d0187c0684
e129b86bfacc8bb517b843fca41d0d179de7a4ca

f0c6bcba74ac51cb 68a9f5e7007c1afa2cf6830b69 e129b86bfacc8bb517b843fca4
---------------- -------------------------- --------------------------
%stddev %change %stddev %change %stddev
\ | \ | \
484435 ± 0% -13.3% 420004 ± 0% -11.6% 428323 ± 0% aim7.jobs-per-min
37.37 ± 0% +15.3% 43.09 ± 0% +13.0% 42.24 ± 0% aim7.time.elapsed_time
37.37 ± 0% +15.3% 43.09 ± 0% +13.0% 42.24 ± 0% aim7.time.elapsed_time.max
6491 ± 3% +30.8% 8491 ± 0% +19.9% 7781 ± 4% aim7.time.involuntary_context_switches
2378 ± 0% +1.1% 2404 ± 0% +9.2% 2598 ± 0% aim7.time.maximum_resident_set_size
376.89 ± 0% +28.4% 484.11 ± 0% +22.8% 462.92 ± 0% aim7.time.system_time
430512 ± 0% -20.1% 343838 ± 0% -17.3% 356032 ± 0% aim7.time.voluntary_context_switches
26816 ± 8% +10.2% 29542 ± 1% +13.5% 30428 ± 0% interrupts.CAL:Function_call_interrupts
1016 ± 8% +527.7% 6381 ± 59% +483.5% 5932 ± 82% latency_stats.sum.down.xfs_buf_lock._xfs_buf_find.xfs_buf_get_map.xfs_trans_get_buf_map.xfs_da_get_buf.xfs_dir3_data_init.xfs_dir2_sf_to_block.xfs_dir2_sf_addname.xfs_dir_createname.xfs_create.xfs_generic_create
125122 ± 10% -10.7% 111758 ± 12% +8.2% 135440 ± 3% softirqs.SCHED
410707 ± 12% +5.2% 432155 ± 11% +24.9% 512838 ± 4% softirqs.TIMER
24772 ± 0% -28.6% 17675 ± 0% -24.1% 18813 ± 1% vmstat.system.cs
53477 ± 2% +5.6% 56453 ± 0% +6.1% 56716 ± 0% vmstat.system.in
43469 ± 0% +5.3% 45792 ± 1% +25.0% 54343 ± 16% proc-vmstat.nr_active_anon
3906 ± 0% +28.8% 5032 ± 2% -48.8% 2000 ± 96% proc-vmstat.nr_active_file
919.33 ± 5% +14.8% 1055 ± 8% +17.8% 1083 ± 10% proc-vmstat.nr_dirty
2270 ± 0% +9.6% 2488 ± 0% +2255.3% 53482 ± 95% proc-vmstat.nr_inactive_anon
3444 ± 5% +41.8% 4884 ± 0% +1809.2% 65752 ± 92% proc-vmstat.nr_shmem
4092 ± 14% +61.2% 6595 ± 1% +64.7% 6741 ± 9% proc-vmstat.pgactivate
1975 ± 15% +63.2% 3224 ± 17% +39.3% 2752 ± 15% slabinfo.scsi_data_buffer.active_objs
1975 ± 15% +63.2% 3224 ± 17% +39.3% 2752 ± 15% slabinfo.scsi_data_buffer.num_objs
464.33 ± 15% +63.3% 758.33 ± 17% +39.3% 647.00 ± 15% slabinfo.xfs_efd_item.active_objs
464.33 ± 15% +63.3% 758.33 ± 17% +39.3% 647.00 ± 15% slabinfo.xfs_efd_item.num_objs
1859 ± 0% +9.3% 2032 ± 6% +12.4% 2089 ± 7% slabinfo.xfs_ili.active_objs
1859 ± 0% +9.3% 2032 ± 6% +12.4% 2089 ± 7% slabinfo.xfs_ili.num_objs
37.37 ± 0% +15.3% 43.09 ± 0% +13.0% 42.24 ± 0% time.elapsed_time
37.37 ± 0% +15.3% 43.09 ± 0% +13.0% 42.24 ± 0% time.elapsed_time.max
6491 ± 3% +30.8% 8491 ± 0% +19.9% 7781 ± 4% time.involuntary_context_switches
1037 ± 0% +10.8% 1148 ± 0% +8.2% 1122 ± 0% time.percent_of_cpu_this_job_got
376.89 ± 0% +28.4% 484.11 ± 0% +22.8% 462.92 ± 0% time.system_time
430512 ± 0% -20.1% 343838 ± 0% -17.3% 356032 ± 0% time.voluntary_context_switches
52991525 ± 1% -19.4% 42687208 ± 0% -15.8% 44610884 ± 0% cpuidle.C1-IVT.time
319584 ± 1% -26.5% 234868 ± 1% -20.1% 255455 ± 1% cpuidle.C1-IVT.usage
3468808 ± 2% -19.8% 2783341 ± 3% -17.8% 2851560 ± 1% cpuidle.C1E-IVT.time
46760 ± 0% -22.4% 36298 ± 0% -19.3% 37738 ± 0% cpuidle.C1E-IVT.usage
12590471 ± 0% -22.3% 9788585 ± 1% -19.2% 10169486 ± 0% cpuidle.C3-IVT.time
79965 ± 0% -19.0% 64749 ± 0% -17.0% 66337 ± 0% cpuidle.C3-IVT.usage
1.3e+09 ± 0% +13.3% 1.473e+09 ± 0% +11.5% 1.449e+09 ± 0% cpuidle.C6-IVT.time
1645891 ± 1% +6.2% 1747525 ± 0% +10.3% 1814699 ± 1% cpuidle.C6-IVT.usage
352.33 ± 8% -24.7% 265.33 ± 1% -11.3% 312.50 ± 4% cpuidle.POLL.usage
189508 ± 0% +6.3% 201410 ± 0% +19.0% 225505 ± 12% meminfo.Active
173880 ± 0% +4.4% 181454 ± 1% +25.1% 217503 ± 16% meminfo.Active(anon)
15627 ± 0% +27.7% 19956 ± 1% -48.8% 8001 ± 96% meminfo.Active(file)
16103 ± 3% +14.3% 18405 ± 8% +15.3% 18575 ± 1% meminfo.AnonHugePages
2260771 ± 0% -0.7% 2244069 ± 1% +10.6% 2501050 ± 9% meminfo.Committed_AS
4330854 ± 11% -8.5% 3960847 ± 0% +16.2% 5034030 ± 0% meminfo.DirectMap2M
132898 ± 9% +15.4% 153380 ± 1% -3.1% 128773 ± 4% meminfo.DirectMap4k
9085 ± 0% +9.4% 9940 ± 0% +2254.7% 213930 ± 95% meminfo.Inactive(anon)
13777 ± 5% +43.1% 19709 ± 0% +1809.0% 263006 ± 92% meminfo.Shmem
24.18 ± 0% +9.0% 26.35 ± 0% +7.1% 25.91 ± 0% turbostat.%Busy
686.00 ± 0% +9.5% 751.00 ± 0% +7.5% 737.50 ± 0% turbostat.Avg_MHz
0.28 ± 0% -25.0% 0.21 ± 0% -17.9% 0.23 ± 0% turbostat.CPU%c3
93.33 ± 1% +3.0% 96.15 ± 0% +0.1% 93.44 ± 0% turbostat.CorWatt
79.00 ± 1% -0.4% 78.67 ± 3% -25.9% 58.50 ± 2% turbostat.CoreTmp
3.05 ± 25% +24.9% 3.81 ± 44% -54.3% 1.40 ± 3% turbostat.Pkg%pc6
78.67 ± 0% +0.4% 79.00 ± 3% -25.6% 58.50 ± 2% turbostat.PkgTmp
124.61 ± 0% +2.1% 127.17 ± 0% -1.0% 123.33 ± 0% turbostat.PkgWatt
4.74 ± 0% -2.7% 4.61 ± 1% -11.1% 4.21 ± 0% turbostat.RAMWatt
1724300 ± 27% -40.5% 1025538 ± 1% -39.2% 1048552 ± 0% sched_debug.cfs_rq:/.load.max
618.30 ± 4% +0.2% 619.34 ± 2% +12.0% 692.21 ± 3% sched_debug.cfs_rq:/.min_vruntime.avg
96.36 ± 3% +18.6% 114.32 ± 15% +19.1% 114.75 ± 17% sched_debug.cfs_rq:/.util_avg.stddev
15.54 ± 3% +1.4% 15.76 ± 22% -14.1% 13.35 ± 1% sched_debug.cpu.cpu_load[4].avg
1724300 ± 27% -40.5% 1025538 ± 1% -39.2% 1048552 ± 0% sched_debug.cpu.load.max
4751 ± 21% -14.6% 4056 ± 25% +25.1% 5944 ± 7% sched_debug.cpu.nr_load_updates.avg
7914 ± 1% -14.1% 6797 ± 15% +29.9% 10280 ± 18% sched_debug.cpu.nr_load_updates.max
2887 ± 30% -28.2% 2073 ± 48% +37.8% 3977 ± 9% sched_debug.cpu.nr_load_updates.min
1182 ± 2% +5.2% 1244 ± 2% +13.0% 1336 ± 11% sched_debug.cpu.nr_load_updates.stddev
1006 ± 3% +3.7% 1044 ± 3% +7.5% 1082 ± 5% sched_debug.cpu.nr_switches.avg
7.66 ± 20% -24.9% 5.75 ± 15% -20.7% 6.07 ± 4% sched_debug.cpu.nr_uninterruptible.stddev
7723 ± 0% +32.6% 10238 ± 5% -48.6% 3968 ± 92% numa-meminfo.node0.Active(file)
1589 ± 17% +45.5% 2313 ± 24% +17.4% 1866 ± 2% numa-meminfo.node0.Dirty
56052 ± 3% +58.2% 88666 ± 17% +99.1% 111572 ± 36% numa-meminfo.node1.Active
48142 ± 4% +64.0% 78943 ± 19% +123.4% 107536 ± 41% numa-meminfo.node1.Active(anon)
7908 ± 1% +22.9% 9722 ± 3% -49.0% 4035 ± 99% numa-meminfo.node1.Active(file)
46721 ± 3% +55.9% 72837 ± 24% +76.9% 82652 ± 34% numa-meminfo.node1.AnonPages
3283 ±122% +4.7% 3436 ± 99% +3034.3% 102920 ± 98% numa-meminfo.node1.Inactive(anon)
6005 ± 4% -0.5% 5974 ± 1% +340.4% 26444 ± 77% numa-meminfo.node1.KernelStack
545018 ± 2% +9.2% 594908 ± 4% +33.1% 725280 ± 19% numa-meminfo.node1.MemUsed
10518 ± 11% +72.6% 18157 ± 33% +330.3% 45256 ± 74% numa-meminfo.node1.PageTables
51114 ± 1% +2.8% 52548 ± 8% +78.0% 90996 ± 39% numa-meminfo.node1.SUnreclaim
4789 ± 69% +102.3% 9687 ± 9% +2571.5% 127936 ± 91% numa-meminfo.node1.Shmem
83631 ± 2% -1.7% 82192 ± 9% +47.0% 122949 ± 22% numa-meminfo.node1.Slab
1930 ± 0% +33.9% 2585 ± 3% -48.6% 992.00 ± 92% numa-vmstat.node0.nr_active_file
4468 ± 7% -8.5% 4089 ± 5% +9.7% 4902 ± 5% numa-vmstat.node0.nr_alloc_batch
466.67 ± 4% +29.3% 603.33 ± 14% +4.0% 485.50 ± 22% numa-vmstat.node0.nr_dirty
12026 ± 4% +64.1% 19734 ± 20% +123.3% 26852 ± 41% numa-vmstat.node1.nr_active_anon
1977 ± 1% +23.6% 2444 ± 1% -49.0% 1008 ± 99% numa-vmstat.node1.nr_active_file
3809 ± 6% +16.1% 4422 ± 4% +17.1% 4459 ± 17% numa-vmstat.node1.nr_alloc_batch
11671 ± 3% +55.9% 18197 ± 24% +76.8% 20633 ± 34% numa-vmstat.node1.nr_anon_pages
13239858 ± 0% +2.7% 13602721 ± 4% +9.4% 14489999 ± 2% numa-vmstat.node1.nr_dirtied
480.67 ± 4% -5.2% 455.67 ± 24% +7.8% 518.00 ± 6% numa-vmstat.node1.nr_dirty
820.33 ±122% +4.7% 858.67 ± 99% +3036.2% 25727 ± 98% numa-vmstat.node1.nr_inactive_anon
373.67 ± 4% -0.5% 371.67 ± 1% +340.5% 1646 ± 76% numa-vmstat.node1.nr_kernel_stack
2626 ± 11% +72.6% 4533 ± 33% +329.6% 11283 ± 74% numa-vmstat.node1.nr_page_table_pages
1197 ± 69% +102.3% 2422 ± 9% +2572.1% 31984 ± 91% numa-vmstat.node1.nr_shmem
12777 ± 1% +2.8% 13134 ± 8% +77.9% 22731 ± 39% numa-vmstat.node1.nr_slab_unreclaimable
456.33 ± 57% -75.6% 111.33 ± 86% -71.2% 131.50 ± 96% numa-vmstat.node1.nr_written
13421081 ± 0% +2.9% 13803847 ± 4% +9.8% 14735371 ± 2% numa-vmstat.node1.numa_hit
13421080 ± 0% +2.9% 13803845 ± 4% +9.8% 14735369 ± 2% numa-vmstat.node1.numa_local
2.658e+11 ± 4% +24.7% 3.316e+11 ± 2% +20.5% 3.204e+11 ± 0% perf-stat.branch-instructions
0.41 ± 1% -9.1% 0.37 ± 1% -22.9% 0.32 ± 0% perf-stat.branch-miss-rate
1.09e+09 ± 3% +13.4% 1.237e+09 ± 1% -7.0% 1.014e+09 ± 0% perf-stat.branch-misses
981138 ± 0% -18.1% 803696 ± 0% -14.7% 837107 ± 0% perf-stat.context-switches
1.511e+12 ± 5% +23.4% 1.864e+12 ± 3% +16.1% 1.754e+12 ± 0% perf-stat.cpu-cycles
102600 ± 1% -7.3% 95075 ± 1% -4.7% 97803 ± 0% perf-stat.cpu-migrations
0.26 ± 12% -30.8% 0.18 ± 10% +48.9% 0.39 ± 36% perf-stat.dTLB-load-miss-rate
8.332e+08 ± 13% -3.8% 8.015e+08 ± 6% +105.9% 1.716e+09 ± 34% perf-stat.dTLB-load-misses
3.164e+11 ± 1% +39.9% 4.426e+11 ± 4% +39.6% 4.417e+11 ± 2% perf-stat.dTLB-loads
0.03 ± 26% -41.3% 0.02 ± 13% +35.0% 0.04 ± 15% perf-stat.dTLB-store-miss-rate
60071678 ± 27% -25.6% 44690199 ± 15% +69.8% 1.02e+08 ± 17% perf-stat.dTLB-store-misses
2.247e+11 ± 6% +26.4% 2.839e+11 ± 2% +25.1% 2.812e+11 ± 2% perf-stat.dTLB-stores
1.49e+12 ± 4% +30.1% 1.939e+12 ± 2% +25.5% 1.87e+12 ± 0% perf-stat.instructions
43348 ± 2% +34.2% 58161 ± 12% +33.0% 57666 ± 8% perf-stat.instructions-per-iTLB-miss
0.99 ± 0% +5.5% 1.04 ± 0% +8.1% 1.07 ± 0% perf-stat.ipc
262799 ± 0% +4.4% 274251 ± 1% +4.6% 274993 ± 0% perf-stat.minor-faults
34.12 ± 1% +2.1% 34.83 ± 0% +5.5% 35.99 ± 0% perf-stat.node-load-miss-rate
46476754 ± 2% +4.6% 48601269 ± 1% +5.5% 49038648 ± 0% perf-stat.node-load-misses
89728871 ± 1% +1.3% 90913257 ± 1% -2.8% 87233401 ± 0% perf-stat.node-loads
9.96 ± 0% +13.4% 11.30 ± 0% +18.3% 11.79 ± 3% perf-stat.node-store-miss-rate
24460859 ± 1% +14.4% 27971097 ± 1% +5.3% 25747546 ± 3% perf-stat.node-store-misses
2.211e+08 ± 1% -0.6% 2.197e+08 ± 1% -12.6% 1.931e+08 ± 6% perf-stat.node-stores
262780 ± 0% +4.4% 274227 ± 1% +4.6% 274953 ± 0% perf-stat.page-faults
11.31 ± 1% -18.1% 9.27 ± 0% -17.3% 9.36 ± 0% perf-profile.cycles-pp.____fput.task_work_run.exit_to_usermode_loop.syscall_return_slowpath.entry_SYSCALL_64_fastpath
0.00 ± -1% +Inf% 1.68 ± 1% +Inf% 1.74 ± 1% perf-profile.cycles-pp.__add_to_page_cache_locked.add_to_page_cache_lru.pagecache_get_page.grab_cache_page_write_begin.iomap_write_begin
1.80 ± 1% -100.0% 0.00 ± -1% -100.0% 0.00 ± -1% perf-profile.cycles-pp.__add_to_page_cache_locked.add_to_page_cache_lru.pagecache_get_page.grab_cache_page_write_begin.xfs_vm_write_begin
2.55 ± 3% -14.2% 2.19 ± 2% -15.3% 2.16 ± 0% perf-profile.cycles-pp.__alloc_pages_nodemask.alloc_pages_current.__page_cache_alloc.pagecache_get_page.grab_cache_page_write_begin
0.00 ± -1% +Inf% 4.45 ± 1% +Inf% 4.96 ± 1% perf-profile.cycles-pp.__block_commit_write.isra.24.block_write_end.generic_write_end.iomap_write_actor.iomap_apply
5.93 ± 0% -100.0% 0.00 ± -1% -100.0% 0.00 ± -1% perf-profile.cycles-pp.__block_commit_write.isra.24.block_write_end.generic_write_end.xfs_vm_write_end.generic_perform_write
13.71 ± 1% -100.0% 0.00 ± -1% -100.0% 0.00 ± -1% perf-profile.cycles-pp.__block_write_begin.xfs_vm_write_begin.generic_perform_write.xfs_file_buffered_aio_write.xfs_file_write_iter
10.36 ± 1% -100.0% 0.00 ± -1% -100.0% 0.00 ± -1% perf-profile.cycles-pp.__block_write_begin_int.__block_write_begin.xfs_vm_write_begin.generic_perform_write.xfs_file_buffered_aio_write
0.00 ± -1% +Inf% 3.64 ± 0% +Inf% 3.79 ± 2% perf-profile.cycles-pp.__block_write_begin_int.iomap_write_begin.iomap_write_actor.iomap_apply.iomap_file_buffered_write
1.04 ± 2% -18.9% 0.84 ± 1% -15.4% 0.88 ± 0% perf-profile.cycles-pp.__delete_from_page_cache.delete_from_page_cache.truncate_inode_page.truncate_inode_pages_range.truncate_inode_pages_final
11.24 ± 2% -18.1% 9.21 ± 0% -17.3% 9.30 ± 0% perf-profile.cycles-pp.__dentry_kill.dput.__fput.____fput.task_work_run
11.31 ± 2% -18.1% 9.26 ± 0% -17.3% 9.36 ± 0% perf-profile.cycles-pp.__fput.____fput.task_work_run.exit_to_usermode_loop.syscall_return_slowpath
1.72 ± 2% -10.1% 1.54 ± 1% -17.6% 1.42 ± 0% perf-profile.cycles-pp.__lru_cache_add.lru_cache_add.add_to_page_cache_lru.pagecache_get_page.grab_cache_page_write_begin
0.00 ± -1% +Inf% 1.09 ± 2% +Inf% 1.12 ± 1% perf-profile.cycles-pp.__mark_inode_dirty.generic_write_end.iomap_write_actor.iomap_apply.iomap_file_buffered_write
1.32 ± 4% -100.0% 0.00 ± -1% -100.0% 0.00 ± -1% perf-profile.cycles-pp.__mark_inode_dirty.generic_write_end.xfs_vm_write_end.generic_perform_write.xfs_file_buffered_aio_write
0.00 ± -1% +Inf% 2.68 ± 2% +Inf% 2.65 ± 0% perf-profile.cycles-pp.__page_cache_alloc.pagecache_get_page.grab_cache_page_write_begin.iomap_write_begin.iomap_write_actor
3.04 ± 3% -100.0% 0.00 ± -1% -100.0% 0.00 ± -1% perf-profile.cycles-pp.__page_cache_alloc.pagecache_get_page.grab_cache_page_write_begin.xfs_vm_write_begin.generic_perform_write
2.50 ± 3% -11.5% 2.21 ± 0% -18.8% 2.03 ± 0% perf-profile.cycles-pp.__pagevec_release.truncate_inode_pages_range.truncate_inode_pages_final.evict.iput
1.00 ± 1% -18.0% 0.82 ± 1% -10.0% 0.90 ± 0% perf-profile.cycles-pp.__radix_tree_lookup.radix_tree_lookup_slot.find_get_entry.pagecache_get_page.grab_cache_page_write_begin
1.12 ± 2% -17.6% 0.92 ± 4% -13.8% 0.96 ± 0% perf-profile.cycles-pp.__sb_start_write.vfs_write.sys_write.entry_SYSCALL_64_fastpath
1.38 ± 2% -13.3% 1.19 ± 1% -12.5% 1.21 ± 0% perf-profile.cycles-pp.__set_page_dirty.mark_buffer_dirty.__block_commit_write.isra.24.block_write_end.generic_write_end
54.10 ± 1% +13.1% 61.20 ± 0% +10.6% 59.86 ± 0% perf-profile.cycles-pp.__vfs_write.vfs_write.sys_write.entry_SYSCALL_64_fastpath
6.34 ± 1% -100.0% 0.00 ± -1% -100.0% 0.00 ± -1% perf-profile.cycles-pp.__xfs_get_blocks.xfs_get_blocks.__block_write_begin_int.__block_write_begin.xfs_vm_write_begin
0.00 ± -1% +Inf% 3.69 ± 1% +Inf% 3.62 ± 0% perf-profile.cycles-pp.add_to_page_cache_lru.pagecache_get_page.grab_cache_page_write_begin.iomap_write_begin.iomap_write_actor
4.02 ± 1% -100.0% 0.00 ± -1% -100.0% 0.00 ± -1% perf-profile.cycles-pp.add_to_page_cache_lru.pagecache_get_page.grab_cache_page_write_begin.xfs_vm_write_begin.generic_perform_write
0.98 ± 5% -100.0% 0.00 ± -1% -100.0% 0.00 ± -1% perf-profile.cycles-pp.alloc_page_buffers.create_empty_buffers.create_page_buffers.__block_write_begin_int.__block_write_begin
0.00 ± -1% +Inf% 2.56 ± 2% +Inf% 2.50 ± 0% perf-profile.cycles-pp.alloc_pages_current.__page_cache_alloc.pagecache_get_page.grab_cache_page_write_begin.iomap_write_begin
2.91 ± 3% -100.0% 0.00 ± -1% -100.0% 0.00 ± -1% perf-profile.cycles-pp.alloc_pages_current.__page_cache_alloc.pagecache_get_page.grab_cache_page_write_begin.xfs_vm_write_begin
3.42 ± 0% -20.9% 2.71 ± 2% -15.7% 2.88 ± 0% perf-profile.cycles-pp.block_invalidatepage.xfs_vm_invalidatepage.truncate_inode_page.truncate_inode_pages_range.truncate_inode_pages_final
0.00 ± -1% +Inf% 4.69 ± 0% +Inf% 5.54 ± 1% perf-profile.cycles-pp.block_write_end.generic_write_end.iomap_write_actor.iomap_apply.iomap_file_buffered_write
6.24 ± 0% -100.0% 0.00 ± -1% -100.0% 0.00 ± -1% perf-profile.cycles-pp.block_write_end.generic_write_end.xfs_vm_write_end.generic_perform_write.xfs_file_buffered_aio_write
19.18 ± 5% -9.3% 17.40 ± 0% -5.8% 18.06 ± 1% perf-profile.cycles-pp.call_cpuidle.cpu_startup_entry.start_secondary
0.94 ± 4% -19.8% 0.76 ± 0% -15.2% 0.80 ± 1% perf-profile.cycles-pp.cancel_dirty_page.try_to_free_buffers.xfs_vm_releasepage.try_to_release_page.block_invalidatepage
3.95 ± 2% -100.0% 0.00 ± -1% -100.0% 0.00 ± -1% perf-profile.cycles-pp.copy_user_enhanced_fast_string.generic_perform_write.xfs_file_buffered_aio_write.xfs_file_write_iter.__vfs_write
0.00 ± -1% +Inf% 3.22 ± 0% +Inf% 3.29 ± 1% perf-profile.cycles-pp.copy_user_enhanced_fast_string.iomap_write_actor.iomap_apply.iomap_file_buffered_write.xfs_file_buffered_aio_write
19.75 ± 5% -9.8% 17.81 ± 0% -6.3% 18.50 ± 1% perf-profile.cycles-pp.cpu_startup_entry.start_secondary
19.18 ± 5% -9.3% 17.40 ± 0% -5.8% 18.05 ± 1% perf-profile.cycles-pp.cpuidle_enter.call_cpuidle.cpu_startup_entry.start_secondary
18.45 ± 5% -9.2% 16.75 ± 0% -5.6% 17.42 ± 1% perf-profile.cycles-pp.cpuidle_enter_state.cpuidle_enter.call_cpuidle.cpu_startup_entry.start_secondary
1.44 ± 3% -100.0% 0.00 ± -1% -100.0% 0.00 ± -1% perf-profile.cycles-pp.create_empty_buffers.create_page_buffers.__block_write_begin_int.__block_write_begin.xfs_vm_write_begin
0.00 ± -1% +Inf% 1.18 ± 1% +Inf% 1.25 ± 2% perf-profile.cycles-pp.create_empty_buffers.create_page_buffers.__block_write_begin_int.iomap_write_begin.iomap_write_actor
1.86 ± 2% -100.0% 0.00 ± -1% -100.0% 0.00 ± -1% perf-profile.cycles-pp.create_page_buffers.__block_write_begin_int.__block_write_begin.xfs_vm_write_begin.generic_perform_write
0.00 ± -1% +Inf% 1.53 ± 1% +Inf% 1.61 ± 3% perf-profile.cycles-pp.create_page_buffers.__block_write_begin_int.iomap_write_begin.iomap_write_actor.iomap_apply
1.74 ± 2% -19.9% 1.40 ± 3% -16.8% 1.45 ± 0% perf-profile.cycles-pp.delete_from_page_cache.truncate_inode_page.truncate_inode_pages_range.truncate_inode_pages_final.evict
1.27 ± 0% -22.5% 0.99 ± 4% -22.3% 0.99 ± 0% perf-profile.cycles-pp.destroy_inode.evict.iput.__dentry_kill.dput
2.61 ± 1% -24.3% 1.98 ± 1% -20.7% 2.07 ± 0% perf-profile.cycles-pp.do_filp_open.do_sys_open.sys_creat.entry_SYSCALL_64_fastpath
2.66 ± 1% -24.3% 2.01 ± 1% -20.5% 2.12 ± 0% perf-profile.cycles-pp.do_sys_open.sys_creat.entry_SYSCALL_64_fastpath
1.79 ± 2% -28.2% 1.28 ± 3% -23.3% 1.37 ± 2% perf-profile.cycles-pp.do_unlinkat.sys_unlink.entry_SYSCALL_64_fastpath
1.07 ± 3% -23.3% 0.82 ± 3% -19.4% 0.86 ± 0% perf-profile.cycles-pp.down_write.xfs_file_buffered_aio_write.xfs_file_write_iter.__vfs_write.vfs_write
1.01 ± 3% -17.9% 0.83 ± 2% -13.6% 0.87 ± 1% perf-profile.cycles-pp.down_write.xfs_ilock.xfs_file_buffered_aio_write.xfs_file_write_iter.__vfs_write
11.26 ± 2% -18.1% 9.23 ± 0% -17.2% 9.32 ± 0% perf-profile.cycles-pp.dput.__fput.____fput.task_work_run.exit_to_usermode_loop
11.21 ± 2% -18.1% 9.18 ± 0% -17.4% 9.26 ± 0% perf-profile.cycles-pp.evict.iput.__dentry_kill.dput.__fput
11.34 ± 2% -18.1% 9.29 ± 0% -17.3% 9.38 ± 0% perf-profile.cycles-pp.exit_to_usermode_loop.syscall_return_slowpath.entry_SYSCALL_64_fastpath
0.00 ± -1% +Inf% 1.55 ± 3% +Inf% 1.65 ± 0% perf-profile.cycles-pp.find_get_entry.pagecache_get_page.grab_cache_page_write_begin.iomap_write_begin.iomap_write_actor
1.83 ± 2% -100.0% 0.00 ± -1% -100.0% 0.00 ± -1% perf-profile.cycles-pp.find_get_entry.pagecache_get_page.grab_cache_page_write_begin.xfs_vm_write_begin.generic_perform_write
43.95 ± 1% -100.0% 0.00 ± -1% -100.0% 0.00 ± -1% perf-profile.cycles-pp.generic_perform_write.xfs_file_buffered_aio_write.xfs_file_write_iter.__vfs_write.vfs_write
0.00 ± -1% +Inf% 7.91 ± 1% +Inf% 9.04 ± 0% perf-profile.cycles-pp.generic_write_end.iomap_write_actor.iomap_apply.iomap_file_buffered_write.xfs_file_buffered_aio_write
10.68 ± 1% -100.0% 0.00 ± -1% -100.0% 0.00 ± -1% perf-profile.cycles-pp.generic_write_end.xfs_vm_write_end.generic_perform_write.xfs_file_buffered_aio_write.xfs_file_write_iter
1.91 ± 3% -16.4% 1.59 ± 1% -17.7% 1.57 ± 0% perf-profile.cycles-pp.get_page_from_freelist.__alloc_pages_nodemask.alloc_pages_current.__page_cache_alloc.pagecache_get_page
0.00 ± -1% +Inf% 9.85 ± 0% +Inf% 9.91 ± 0% perf-profile.cycles-pp.grab_cache_page_write_begin.iomap_write_begin.iomap_write_actor.iomap_apply.iomap_file_buffered_write
10.96 ± 1% -100.0% 0.00 ± -1% -100.0% 0.00 ± -1% perf-profile.cycles-pp.grab_cache_page_write_begin.xfs_vm_write_begin.generic_perform_write.xfs_file_buffered_aio_write.xfs_file_write_iter
0.00 ± -1% +Inf% 52.29 ± 0% +Inf% 50.82 ± 0% perf-profile.cycles-pp.iomap_apply.iomap_file_buffered_write.xfs_file_buffered_aio_write.xfs_file_write_iter.__vfs_write
0.00 ± -1% +Inf% 52.94 ± 0% +Inf% 51.44 ± 0% perf-profile.cycles-pp.iomap_file_buffered_write.xfs_file_buffered_aio_write.xfs_file_write_iter.__vfs_write.vfs_write
0.00 ± -1% +Inf% 34.35 ± 0% +Inf% 32.27 ± 0% perf-profile.cycles-pp.iomap_write_actor.iomap_apply.iomap_file_buffered_write.xfs_file_buffered_aio_write.xfs_file_write_iter
0.00 ± -1% +Inf% 16.48 ± 0% +Inf% 16.75 ± 1% perf-profile.cycles-pp.iomap_write_begin.iomap_write_actor.iomap_apply.iomap_file_buffered_write.xfs_file_buffered_aio_write
11.22 ± 2% -18.1% 9.19 ± 0% -17.3% 9.27 ± 0% perf-profile.cycles-pp.iput.__dentry_kill.dput.__fput.____fput
0.00 ± -1% +Inf% 1.55 ± 1% +Inf% 1.42 ± 0% perf-profile.cycles-pp.lru_cache_add.add_to_page_cache_lru.pagecache_get_page.grab_cache_page_write_begin.iomap_write_begin
1.72 ± 2% -100.0% 0.00 ± -1% -100.0% 0.00 ± -1% perf-profile.cycles-pp.lru_cache_add.add_to_page_cache_lru.pagecache_get_page.grab_cache_page_write_begin.xfs_vm_write_begin
0.00 ± -1% +Inf% 2.78 ± 0% +Inf% 2.88 ± 1% perf-profile.cycles-pp.mark_buffer_dirty.__block_commit_write.isra.24.block_write_end.generic_write_end.iomap_write_actor
3.39 ± 1% -100.0% 0.00 ± -1% -100.0% 0.00 ± -1% perf-profile.cycles-pp.mark_buffer_dirty.__block_commit_write.isra.24.block_write_end.generic_write_end.xfs_vm_write_end
0.00 ± -1% +Inf% 3.44 ± 1% +NaN% 0.00 ± -1% perf-profile.cycles-pp.mark_page_accessed.iomap_write_actor.iomap_apply.iomap_file_buffered_write.xfs_file_buffered_aio_write
3.03 ± 0% -100.0% 0.00 ± -1% -100.0% 0.00 ± -1% perf-profile.cycles-pp.memset_erms.__block_write_begin.xfs_vm_write_begin.generic_perform_write.xfs_file_buffered_aio_write
0.00 ± -1% +Inf% 2.43 ± 0% +Inf% 2.48 ± 3% perf-profile.cycles-pp.memset_erms.iomap_write_begin.iomap_write_actor.iomap_apply.iomap_file_buffered_write
0.00 ± -1% +Inf% 9.25 ± 0% +Inf% 9.25 ± 0% perf-profile.cycles-pp.pagecache_get_page.grab_cache_page_write_begin.iomap_write_begin.iomap_write_actor.iomap_apply
10.37 ± 2% -100.0% 0.00 ± -1% -100.0% 0.00 ± -1% perf-profile.cycles-pp.pagecache_get_page.grab_cache_page_write_begin.xfs_vm_write_begin.generic_perform_write.xfs_file_buffered_aio_write
1.52 ± 2% -9.2% 1.38 ± 1% -17.0% 1.27 ± 0% perf-profile.cycles-pp.pagevec_lru_move_fn.__lru_cache_add.lru_cache_add.add_to_page_cache_lru.pagecache_get_page
2.58 ± 1% -24.1% 1.96 ± 0% -20.6% 2.05 ± 0% perf-profile.cycles-pp.path_openat.do_filp_open.do_sys_open.sys_creat.entry_SYSCALL_64_fastpath
0.00 ± -1% +Inf% 0.95 ± 0% +Inf% 1.04 ± 0% perf-profile.cycles-pp.radix_tree_lookup_slot.find_get_entry.pagecache_get_page.grab_cache_page_write_begin.iomap_write_begin
1.17 ± 3% -100.0% 0.00 ± -1% -100.0% 0.00 ± -1% perf-profile.cycles-pp.radix_tree_lookup_slot.find_get_entry.pagecache_get_page.grab_cache_page_write_begin.xfs_vm_write_begin
2.39 ± 3% -11.2% 2.12 ± 0% -18.3% 1.95 ± 1% perf-profile.cycles-pp.release_pages.__pagevec_release.truncate_inode_pages_range.truncate_inode_pages_final.evict
2.06 ± 3% -22.5% 1.60 ± 2% -10.9% 1.83 ± 0% perf-profile.cycles-pp.rw_verify_area.vfs_write.sys_write.entry_SYSCALL_64_fastpath
1.79 ± 3% -22.2% 1.39 ± 0% -9.8% 1.62 ± 0% perf-profile.cycles-pp.security_file_permission.rw_verify_area.vfs_write.sys_write.entry_SYSCALL_64_fastpath
1.32 ± 4% -21.4% 1.04 ± 0% -7.4% 1.23 ± 1% perf-profile.cycles-pp.selinux_file_permission.security_file_permission.rw_verify_area.vfs_write.sys_write
19.79 ± 5% -9.9% 17.84 ± 0% -6.4% 18.54 ± 1% perf-profile.cycles-pp.start_secondary
2.67 ± 1% -24.2% 2.02 ± 1% -20.4% 2.12 ± 1% perf-profile.cycles-pp.sys_creat.entry_SYSCALL_64_fastpath
1.79 ± 3% -27.9% 1.29 ± 3% -23.0% 1.38 ± 2% perf-profile.cycles-pp.sys_unlink.entry_SYSCALL_64_fastpath
60.98 ± 1% +9.5% 66.76 ± 0% +7.8% 65.74 ± 0% perf-profile.cycles-pp.sys_write.entry_SYSCALL_64_fastpath
11.34 ± 1% -18.1% 9.29 ± 0% -17.2% 9.39 ± 0% perf-profile.cycles-pp.syscall_return_slowpath.entry_SYSCALL_64_fastpath
11.32 ± 1% -18.0% 9.28 ± 0% -17.3% 9.37 ± 0% perf-profile.cycles-pp.task_work_run.exit_to_usermode_loop.syscall_return_slowpath.entry_SYSCALL_64_fastpath
5.96 ± 1% -20.0% 4.77 ± 0% -15.8% 5.02 ± 0% perf-profile.cycles-pp.truncate_inode_page.truncate_inode_pages_range.truncate_inode_pages_final.evict.iput
9.89 ± 2% -17.4% 8.17 ± 0% -16.7% 8.25 ± 0% perf-profile.cycles-pp.truncate_inode_pages_final.evict.iput.__dentry_kill.dput
9.87 ± 2% -17.5% 8.15 ± 0% -16.8% 8.21 ± 0% perf-profile.cycles-pp.truncate_inode_pages_range.truncate_inode_pages_final.evict.iput.__dentry_kill
2.07 ± 1% -20.4% 1.65 ± 2% -14.9% 1.77 ± 1% perf-profile.cycles-pp.try_to_free_buffers.xfs_vm_releasepage.try_to_release_page.block_invalidatepage.xfs_vm_invalidatepage
2.40 ± 1% -21.0% 1.89 ± 2% -15.3% 2.03 ± 1% perf-profile.cycles-pp.try_to_release_page.block_invalidatepage.xfs_vm_invalidatepage.truncate_inode_page.truncate_inode_pages_range
0.00 ± -1% +Inf% 1.36 ± 1% +Inf% 1.56 ± 3% perf-profile.cycles-pp.unlock_page.generic_write_end.iomap_write_actor.iomap_apply.iomap_file_buffered_write
1.72 ± 4% -100.0% 0.00 ± -1% -100.0% 0.00 ± -1% perf-profile.cycles-pp.unlock_page.generic_write_end.xfs_vm_write_end.generic_perform_write.xfs_file_buffered_aio_write
59.63 ± 1% +10.2% 65.72 ± 0% +8.5% 64.68 ± 0% perf-profile.cycles-pp.vfs_write.sys_write.entry_SYSCALL_64_fastpath
0.00 ± -1% +Inf% 1.52 ± 2% +NaN% 0.00 ± -1% perf-profile.cycles-pp.workingset_activation.mark_page_accessed.iomap_write_actor.iomap_apply.iomap_file_buffered_write
0.00 ± -1% +Inf% 1.73 ± 1% +Inf% 1.75 ± 2% perf-profile.cycles-pp.xfs_bmap_search_extents.xfs_bmapi_delay.xfs_iomap_write_delay.xfs_file_iomap_begin.iomap_apply
0.00 ± -1% +Inf% 1.97 ± 2% +Inf% 2.04 ± 0% perf-profile.cycles-pp.xfs_bmap_search_extents.xfs_bmapi_read.xfs_file_iomap_begin.iomap_apply.iomap_file_buffered_write
0.00 ± -1% +Inf% 1.61 ± 2% +Inf% 1.65 ± 1% perf-profile.cycles-pp.xfs_bmap_search_extents.xfs_bmapi_read.xfs_iomap_eof_want_preallocate.constprop.8.xfs_iomap_write_delay.xfs_file_iomap_begin
0.00 ± -1% +Inf% 1.24 ± 2% +Inf% 1.21 ± 3% perf-profile.cycles-pp.xfs_bmap_search_multi_extents.xfs_bmap_search_extents.xfs_bmapi_delay.xfs_iomap_write_delay.xfs_file_iomap_begin
0.00 ± -1% +Inf% 1.46 ± 1% +Inf% 1.47 ± 1% perf-profile.cycles-pp.xfs_bmap_search_multi_extents.xfs_bmap_search_extents.xfs_bmapi_read.xfs_file_iomap_begin.iomap_apply
0.00 ± -1% +Inf% 1.21 ± 2% +Inf% 1.25 ± 0% perf-profile.cycles-pp.xfs_bmap_search_multi_extents.xfs_bmap_search_extents.xfs_bmapi_read.xfs_iomap_eof_want_preallocate.constprop.8.xfs_iomap_write_delay
1.25 ± 0% -100.0% 0.00 ± -1% -100.0% 0.00 ± -1% perf-profile.cycles-pp.xfs_bmapi_delay.xfs_iomap_write_delay.__xfs_get_blocks.xfs_get_blocks.__block_write_begin_int
0.00 ± -1% +Inf% 3.06 ± 1% +Inf% 3.08 ± 1% perf-profile.cycles-pp.xfs_bmapi_delay.xfs_iomap_write_delay.xfs_file_iomap_begin.iomap_apply.iomap_file_buffered_write
1.04 ± 0% -100.0% 0.00 ± -1% -100.0% 0.00 ± -1% perf-profile.cycles-pp.xfs_bmapi_read.__xfs_get_blocks.xfs_get_blocks.__block_write_begin_int.__block_write_begin
0.00 ± -1% +Inf% 3.04 ± 1% +Inf% 3.16 ± 1% perf-profile.cycles-pp.xfs_bmapi_read.xfs_file_iomap_begin.iomap_apply.iomap_file_buffered_write.xfs_file_buffered_aio_write
0.00 ± -1% +Inf% 3.05 ± 1% +Inf% 3.09 ± 1% perf-profile.cycles-pp.xfs_bmapi_read.xfs_iomap_eof_want_preallocate.constprop.8.xfs_iomap_write_delay.xfs_file_iomap_begin.iomap_apply
1.32 ± 2% -21.5% 1.04 ± 1% -19.7% 1.06 ± 0% perf-profile.cycles-pp.xfs_create.xfs_generic_create.xfs_vn_mknod.xfs_vn_create.path_openat
51.83 ± 1% +14.3% 59.25 ± 0% +11.8% 57.95 ± 0% perf-profile.cycles-pp.xfs_file_buffered_aio_write.xfs_file_write_iter.__vfs_write.vfs_write.sys_write
0.00 ± -1% +Inf% 16.05 ± 0% +Inf% 16.68 ± 0% perf-profile.cycles-pp.xfs_file_iomap_begin.iomap_apply.iomap_file_buffered_write.xfs_file_buffered_aio_write.xfs_file_write_iter
53.16 ± 1% +13.6% 60.40 ± 0% +11.1% 59.09 ± 0% perf-profile.cycles-pp.xfs_file_write_iter.__vfs_write.vfs_write.sys_write.entry_SYSCALL_64_fastpath
1.24 ± 1% -23.1% 0.95 ± 4% -21.8% 0.97 ± 0% perf-profile.cycles-pp.xfs_fs_destroy_inode.destroy_inode.evict.iput.__dentry_kill
1.42 ± 2% -21.2% 1.12 ± 1% -20.6% 1.12 ± 0% perf-profile.cycles-pp.xfs_generic_create.xfs_vn_mknod.xfs_vn_create.path_openat.do_filp_open
6.46 ± 1% -100.0% 0.00 ± -1% -100.0% 0.00 ± -1% perf-profile.cycles-pp.xfs_get_blocks.__block_write_begin_int.__block_write_begin.xfs_vm_write_begin.generic_perform_write
1.29 ± 3% -18.9% 1.04 ± 1% -14.1% 1.10 ± 0% perf-profile.cycles-pp.xfs_ilock.xfs_file_buffered_aio_write.xfs_file_write_iter.__vfs_write.vfs_write
0.00 ± -1% +Inf% 1.14 ± 3% +Inf% 1.17 ± 1% perf-profile.cycles-pp.xfs_ilock.xfs_file_iomap_begin.iomap_apply.iomap_file_buffered_write.xfs_file_buffered_aio_write
1.21 ± 1% -23.4% 0.93 ± 4% -22.5% 0.94 ± 0% perf-profile.cycles-pp.xfs_inactive.xfs_fs_destroy_inode.destroy_inode.evict.iput
1.23 ± 4% -100.0% 0.00 ± -1% -100.0% 0.00 ± -1% perf-profile.cycles-pp.xfs_iomap_eof_want_preallocate.constprop.6.xfs_iomap_write_delay.__xfs_get_blocks.xfs_get_blocks.__block_write_begin_int
0.00 ± -1% +Inf% 4.14 ± 0% +Inf% 4.15 ± 1% perf-profile.cycles-pp.xfs_iomap_eof_want_preallocate.constprop.8.xfs_iomap_write_delay.xfs_file_iomap_begin.iomap_apply.iomap_file_buffered_write
3.28 ± 2% -100.0% 0.00 ± -1% -100.0% 0.00 ± -1% perf-profile.cycles-pp.xfs_iomap_write_delay.__xfs_get_blocks.xfs_get_blocks.__block_write_begin_int.__block_write_begin
0.00 ± -1% +Inf% 9.08 ± 0% +Inf% 9.19 ± 1% perf-profile.cycles-pp.xfs_iomap_write_delay.xfs_file_iomap_begin.iomap_apply.iomap_file_buffered_write.xfs_file_buffered_aio_write
3.54 ± 0% -20.8% 2.81 ± 1% -15.6% 2.99 ± 0% perf-profile.cycles-pp.xfs_vm_invalidatepage.truncate_inode_page.truncate_inode_pages_range.truncate_inode_pages_final.evict
2.35 ± 1% -21.0% 1.86 ± 1% -15.1% 2.00 ± 1% perf-profile.cycles-pp.xfs_vm_releasepage.try_to_release_page.block_invalidatepage.xfs_vm_invalidatepage.truncate_inode_page
25.10 ± 1% -100.0% 0.00 ± -1% -100.0% 0.00 ± -1% perf-profile.cycles-pp.xfs_vm_write_begin.generic_perform_write.xfs_file_buffered_aio_write.xfs_file_write_iter.__vfs_write
11.03 ± 1% -100.0% 0.00 ± -1% -100.0% 0.00 ± -1% perf-profile.cycles-pp.xfs_vm_write_end.generic_perform_write.xfs_file_buffered_aio_write.xfs_file_write_iter.__vfs_write
1.42 ± 2% -20.7% 1.13 ± 1% -20.4% 1.13 ± 0% perf-profile.cycles-pp.xfs_vn_create.path_openat.do_filp_open.do_sys_open.sys_creat
1.42 ± 2% -20.5% 1.13 ± 1% -20.2% 1.13 ± 0% perf-profile.cycles-pp.xfs_vn_mknod.xfs_vn_create.path_openat.do_filp_open.do_sys_open
2.27 ± 1% -10.6% 2.03 ± 0% -6.7% 2.12 ± 1% perf-profile.func.cycles-pp.___might_sleep
2.49 ± 0% -34.5% 1.63 ± 1% -16.7% 2.08 ± 0% perf-profile.func.cycles-pp.__block_commit_write.isra.24
1.51 ± 2% +15.4% 1.75 ± 1% +18.0% 1.79 ± 2% perf-profile.func.cycles-pp.__block_write_begin_int
1.79 ± 4% -16.8% 1.49 ± 1% -14.5% 1.53 ± 0% perf-profile.func.cycles-pp.__mark_inode_dirty
1.32 ± 0% -16.4% 1.10 ± 1% -9.5% 1.19 ± 0% perf-profile.func.cycles-pp.__radix_tree_lookup
1.08 ± 2% -100.0% 0.00 ± -1% -100.0% 0.00 ± -1% perf-profile.func.cycles-pp.__xfs_get_blocks
1.16 ± 0% -18.1% 0.95 ± 1% -15.8% 0.98 ± 1% perf-profile.func.cycles-pp._raw_spin_lock
3.96 ± 2% -18.4% 3.23 ± 0% -16.9% 3.29 ± 1% perf-profile.func.cycles-pp.copy_user_enhanced_fast_string
1.41 ± 3% -20.6% 1.12 ± 3% -21.1% 1.11 ± 3% perf-profile.func.cycles-pp.entry_SYSCALL_64_fastpath
1.30 ± 2% -100.0% 0.00 ± -1% -100.0% 0.00 ± -1% perf-profile.func.cycles-pp.generic_perform_write
1.31 ± 2% -46.7% 0.70 ± 0% -43.8% 0.73 ± 0% perf-profile.func.cycles-pp.generic_write_end
18.43 ± 5% -9.1% 16.76 ± 0% -5.4% 17.44 ± 1% perf-profile.func.cycles-pp.intel_idle
0.00 ± -1% +Inf% 1.12 ± 1% +Inf% 0.90 ± 0% perf-profile.func.cycles-pp.iomap_write_actor
1.50 ± 1% -20.9% 1.19 ± 1% -17.0% 1.25 ± 2% perf-profile.func.cycles-pp.mark_buffer_dirty
0.00 ± -1% +Inf% 1.91 ± 1% +NaN% 0.00 ± -1% perf-profile.func.cycles-pp.mark_page_accessed
3.24 ± 0% -19.8% 2.60 ± 0% -18.1% 2.66 ± 3% perf-profile.func.cycles-pp.memset_erms
1.75 ± 2% -18.9% 1.42 ± 1% -7.3% 1.62 ± 4% perf-profile.func.cycles-pp.unlock_page
1.56 ± 2% +6.0% 1.65 ± 3% +11.8% 1.74 ± 1% perf-profile.func.cycles-pp.up_write
1.16 ± 1% -21.6% 0.91 ± 1% -17.7% 0.95 ± 1% perf-profile.func.cycles-pp.vfs_write
0.37 ± 2% +243.6% 1.26 ± 2% +272.3% 1.36 ± 2% perf-profile.func.cycles-pp.xfs_bmap_search_extents
0.41 ± 1% +198.4% 1.22 ± 2% +198.8% 1.23 ± 3% perf-profile.func.cycles-pp.xfs_bmap_search_multi_extents
0.70 ± 5% +219.5% 2.24 ± 0% +227.9% 2.29 ± 0% perf-profile.func.cycles-pp.xfs_bmapi_read
1.05 ± 2% -15.6% 0.88 ± 3% -18.8% 0.85 ± 1% perf-profile.func.cycles-pp.xfs_file_write_iter
0.64 ± 1% +182.8% 1.81 ± 4% +182.0% 1.81 ± 0% perf-profile.func.cycles-pp.xfs_iext_bno_to_ext
0.00 ± -1% +Inf% 1.10 ± 3% +Inf% 1.21 ± 2% perf-profile.func.cycles-pp.xfs_iomap_eof_want_preallocate.constprop.8
0.46 ± 4% +161.6% 1.20 ± 1% +171.7% 1.25 ± 1% perf-profile.func.cycles-pp.xfs_iomap_write_delay

raw perf data:

"perf-profile.func.cycles-pp.intel_idle": 17.66,
"perf-profile.func.cycles-pp.copy_user_enhanced_fast_string": 3.25,
"perf-profile.func.cycles-pp.memset_erms": 2.56,
"perf-profile.func.cycles-pp.xfs_bmapi_read": 2.28,
"perf-profile.func.cycles-pp.___might_sleep": 2.09,
"perf-profile.func.cycles-pp.__block_commit_write.isra.24": 2.07,
"perf-profile.func.cycles-pp.xfs_iext_bno_to_ext": 1.79,
"perf-profile.func.cycles-pp.__block_write_begin_int": 1.74,
"perf-profile.func.cycles-pp.up_write": 1.72,
"perf-profile.func.cycles-pp.unlock_page": 1.69,
"perf-profile.func.cycles-pp.down_write": 1.59,
"perf-profile.func.cycles-pp.__mark_inode_dirty": 1.54,
"perf-profile.func.cycles-pp.xfs_bmap_search_extents": 1.33,
"perf-profile.func.cycles-pp.xfs_iomap_write_delay": 1.23,
"perf-profile.func.cycles-pp.mark_buffer_dirty": 1.21,
"perf-profile.func.cycles-pp.__radix_tree_lookup": 1.2,
"perf-profile.func.cycles-pp.xfs_bmap_search_multi_extents": 1.18,
"perf-profile.func.cycles-pp.xfs_iomap_eof_want_preallocate.constprop.8": 1.17,
"perf-profile.func.cycles-pp.entry_SYSCALL_64_fastpath": 1.15,
"perf-profile.func.cycles-pp.__might_sleep": 1.14,
"perf-profile.func.cycles-pp._raw_spin_lock": 0.97,
"perf-profile.func.cycles-pp.vfs_write": 0.94,
"perf-profile.func.cycles-pp.xfs_bmapi_delay": 0.93,
"perf-profile.func.cycles-pp.iomap_write_actor": 0.9,
"perf-profile.func.cycles-pp.pagecache_get_page": 0.89,
"perf-profile.func.cycles-pp.xfs_file_write_iter": 0.86,
"perf-profile.func.cycles-pp.xfs_file_iomap_begin": 0.81,
"perf-profile.func.cycles-pp.iov_iter_copy_from_user_atomic": 0.78,
"perf-profile.func.cycles-pp.iomap_apply": 0.77,
"perf-profile.func.cycles-pp.generic_write_end": 0.74,
"perf-profile.func.cycles-pp.xfs_file_buffered_aio_write": 0.72,
"perf-profile.func.cycles-pp.find_get_entry": 0.69,
"perf-profile.func.cycles-pp.__vfs_write": 0.67,

Best Regards,
Huang, Ying