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X-MS-Exchange-CrossTenant-UserPrincipalName: fXYRl5AsT1Iu/irPgbHf08/qC6aIOT2b1UC53dHVfpfGiI9cpoJoPU8+i/+1fG4TL+lYrKnEdr5uNK1AxXE9Cg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: CYYPR11MB8307 X-OriginatorOrg: intel.com Hello, kernel test robot noticed a 40.7% regression of stress-ng.fallocate.ops_per_sec on: commit: 5e85262e542d6da8898bb8563a724ad98f6fc936 ("btrfs: fix fsync of files with no hard links not persisting deletion") https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master [still regression on linus/master 4cb6c8af8591135ec000fbe4bb474139ceec595d] [still regression on linux-next/master 3a83b350b5be4b4f6bd895eecf9a92080200ee5d] testcase: stress-ng config: x86_64-rhel-9.4 compiler: gcc-12 test machine: 128 threads 2 sockets Intel(R) Xeon(R) Platinum 8358 CPU @ 2.60GHz (Ice Lake) with 128G memory parameters: nr_threads: 100% disk: 1HDD testtime: 60s fs: btrfs test: fallocate cpufreq_governor: performance In addition to that, the commit also has significant impact on the following tests: +------------------+------------------------------------------------------------------------------------------------+ | testcase: change | stress-ng: stress-ng.copy-file.ops_per_sec 33.6% regression | | test machine | 128 threads 2 sockets Intel(R) Xeon(R) Platinum 8358 CPU @ 2.60GHz (Ice Lake) with 128G memory | | test parameters | cpufreq_governor=performance | | | disk=1HDD | | | fs=btrfs | | | nr_threads=100% | | | test=copy-file | | | testtime=60s | +------------------+------------------------------------------------------------------------------------------------+ If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-lkp/202506101357.7ada85f6-lkp@intel.com Details are as below: --------------------------------------------------------------------------------------------------> The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20250610/202506101357.7ada85f6-lkp@intel.com ========================================================================================= compiler/cpufreq_governor/disk/fs/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime: gcc-12/performance/1HDD/btrfs/x86_64-rhel-9.4/100%/debian-12-x86_64-20240206.cgz/lkp-icl-2sp4/fallocate/stress-ng/60s commit: 846b534075 ("btrfs: fix typo in space info explanation") 5e85262e54 ("btrfs: fix fsync of files with no hard links not persisting deletion") 846b534075f45d5b 5e85262e542d6da8898bb8563a7 ---------------- --------------------------- %stddev %change %stddev \ | \ 6816 ± 3% +54.4% 10526 ± 4% uptime.idle 8.564e+09 -8.8% 7.813e+09 cpuidle..time 358855 ± 2% +40.2% 503142 cpuidle..usage 36.53 +3.3% 37.75 boot-time.boot 27.16 +3.6% 28.15 boot-time.dhcp 4346 +3.3% 4489 boot-time.idle 26.69 ± 8% +173.5% 72.99 ± 8% iostat.cpu.idle 72.51 ± 3% -65.0% 25.36 ± 22% iostat.cpu.iowait 0.47 ± 4% +170.8% 1.27 ± 17% iostat.cpu.system 1260573 ± 8% -36.7% 798065 ± 4% numa-numastat.node0.local_node 1333347 ± 7% -35.6% 859241 ± 5% numa-numastat.node0.numa_hit 1310625 ± 8% -43.1% 745116 ± 4% numa-numastat.node1.local_node 1370277 ± 7% -40.4% 816368 ± 5% numa-numastat.node1.numa_hit 72.60 ± 10% -36.6% 46.00 ± 22% perf-c2c.DRAM.local 76.80 ± 11% +328.5% 329.10 ± 30% perf-c2c.DRAM.remote 36.50 ± 19% +864.1% 351.90 ± 29% perf-c2c.HITM.local 31.00 ± 15% +522.3% 192.90 ± 31% perf-c2c.HITM.remote 4718134 -11.1% 4195454 meminfo.Cached 325934 -84.9% 49200 ± 24% meminfo.Dirty 977794 -54.8% 442223 ± 15% meminfo.Inactive 977794 -54.8% 442223 ± 15% meminfo.Inactive(file) 114582 +16.1% 133034 meminfo.Shmem 414480 -53.3% 193720 ± 23% meminfo.Writeback 26.65 ± 8% +173.9% 72.98 ± 8% vmstat.cpu.id 72.54 ± 3% -64.9% 25.47 ± 23% vmstat.cpu.wa 107799 -37.1% 67824 vmstat.io.bo 117.81 -72.1% 32.92 ± 23% vmstat.procs.b 3650 ± 2% +78.2% 6506 vmstat.system.cs 6900 ± 3% +70.7% 11777 ± 7% vmstat.system.in 24.55 ± 9% +47.7 72.22 ± 8% mpstat.cpu.all.idle% 74.66 ± 3% -48.5 26.12 ± 22% mpstat.cpu.all.iowait% 0.02 ± 5% +0.0 0.03 ± 4% mpstat.cpu.all.irq% 0.02 ± 2% +0.0 0.03 ± 5% mpstat.cpu.all.soft% 0.41 ± 5% +0.8 1.22 ± 18% mpstat.cpu.all.sys% 0.34 +0.0 0.38 ± 2% mpstat.cpu.all.usr% 2.00 +445.0% 10.90 ± 59% mpstat.max_utilization.seconds 158860 ± 7% -85.3% 23387 ± 26% numa-meminfo.node0.Dirty 474882 ± 5% -52.9% 223821 ± 14% numa-meminfo.node0.Inactive 474882 ± 5% -52.9% 223821 ± 14% numa-meminfo.node0.Inactive(file) 201670 ± 5% -52.3% 96112 ± 20% numa-meminfo.node0.Writeback 166889 ± 6% -84.6% 25642 ± 28% numa-meminfo.node1.Dirty 502047 ± 5% -56.4% 218867 ± 17% numa-meminfo.node1.Inactive 502047 ± 5% -56.4% 218867 ± 17% numa-meminfo.node1.Inactive(file) 212352 ± 5% -54.0% 97712 ± 29% numa-meminfo.node1.Writeback 906.60 -43.5% 512.00 stress-ng.fallocate.ops 14.30 -40.7% 8.48 stress-ng.fallocate.ops_per_sec 65.75 -8.0% 60.48 stress-ng.time.elapsed_time 65.75 -8.0% 60.48 stress-ng.time.elapsed_time.max 14854172 -42.8% 8502297 stress-ng.time.file_system_outputs 750.40 ± 5% +130.1% 1727 ± 9% stress-ng.time.involuntary_context_switches 40.40 ± 6% +263.4% 146.80 ± 20% stress-ng.time.percent_of_cpu_this_job_got 26.79 ± 6% +231.8% 88.89 ± 20% stress-ng.time.system_time 46451 ± 4% +190.9% 135122 ± 2% stress-ng.time.voluntary_context_switches 197148 +2.7% 202432 proc-vmstat.nr_active_anon 1859510 -42.8% 1064284 proc-vmstat.nr_dirtied 81387 -84.9% 12287 ± 26% proc-vmstat.nr_dirty 1179517 -11.0% 1049203 proc-vmstat.nr_file_pages 244166 -54.7% 110697 ± 15% proc-vmstat.nr_inactive_file 43062 +1.4% 43664 proc-vmstat.nr_mapped 28656 +15.9% 33198 proc-vmstat.nr_shmem 103481 ± 2% -53.2% 48448 ± 23% proc-vmstat.nr_writeback 1855961 -42.8% 1062406 proc-vmstat.nr_written 197148 +2.7% 202432 proc-vmstat.nr_zone_active_anon 244166 -54.7% 110697 ± 15% proc-vmstat.nr_zone_inactive_file 184834 -67.1% 60733 ± 23% proc-vmstat.nr_zone_write_pending 2705223 -38.0% 1677261 proc-vmstat.numa_hit 2572798 -40.0% 1544833 proc-vmstat.numa_local 2754538 -37.3% 1726600 proc-vmstat.pgalloc_normal 2722111 -39.5% 1645913 ± 3% proc-vmstat.pgfree 7427330 -42.0% 4306316 proc-vmstat.pgpgout 908534 ± 5% -40.5% 540322 numa-vmstat.node0.nr_dirtied 39714 ± 7% -85.3% 5835 ± 26% numa-vmstat.node0.nr_dirty 118740 ± 5% -52.7% 56112 ± 14% numa-vmstat.node0.nr_inactive_file 50433 ± 5% -52.3% 24033 ± 20% numa-vmstat.node0.nr_writeback 906619 ± 5% -40.5% 539353 numa-vmstat.node0.nr_written 118740 ± 5% -52.7% 56112 ± 14% numa-vmstat.node0.nr_zone_inactive_file 90132 ± 5% -66.9% 29866 ± 21% numa-vmstat.node0.nr_zone_write_pending 1333077 ± 7% -35.5% 859486 ± 5% numa-vmstat.node0.numa_hit 1260303 ± 8% -36.7% 798310 ± 4% numa-vmstat.node0.numa_local 950974 ± 5% -44.9% 523966 numa-vmstat.node1.nr_dirtied 41787 ± 6% -84.6% 6454 ± 29% numa-vmstat.node1.nr_dirty 125464 ± 5% -56.2% 55001 ± 17% numa-vmstat.node1.nr_inactive_file 52957 ± 5% -53.9% 24413 ± 29% numa-vmstat.node1.nr_writeback 948799 ± 5% -44.9% 523041 numa-vmstat.node1.nr_written 125464 ± 5% -56.2% 55001 ± 17% numa-vmstat.node1.nr_zone_inactive_file 94729 ± 5% -67.4% 30867 ± 28% numa-vmstat.node1.nr_zone_write_pending 1369690 ± 7% -40.4% 815898 ± 5% numa-vmstat.node1.numa_hit 1310039 ± 8% -43.2% 744646 ± 4% numa-vmstat.node1.numa_local 2.21 -8.8% 2.02 ± 4% perf-stat.i.MPKI 6.4e+08 +15.0% 7.358e+08 ± 3% perf-stat.i.branch-instructions 2.82 +0.9 3.76 perf-stat.i.branch-miss-rate% 28372748 +15.8% 32852598 perf-stat.i.branch-misses 13.29 -3.9 9.40 ± 2% perf-stat.i.cache-miss-rate% 22292540 +32.9% 29636364 perf-stat.i.cache-references 3470 +84.5% 6402 perf-stat.i.context-switches 0.96 +106.4% 1.99 ± 4% perf-stat.i.cpi 3.473e+09 ± 2% +100.3% 6.957e+09 ± 14% perf-stat.i.cpu-cycles 176.57 +32.0% 233.00 ± 2% perf-stat.i.cpu-migrations 885.32 ± 3% +109.0% 1850 ± 8% perf-stat.i.cycles-between-cache-misses 3.127e+09 +13.2% 3.541e+09 ± 3% perf-stat.i.instructions 1.17 -32.0% 0.79 perf-stat.i.ipc 4118 +6.8% 4398 perf-stat.i.minor-faults 4118 +6.8% 4398 perf-stat.i.page-faults 0.96 -7.9% 0.88 ± 3% perf-stat.overall.MPKI 13.47 -2.9 10.56 ± 2% perf-stat.overall.cache-miss-rate% 1.11 ± 2% +77.0% 1.96 ± 11% perf-stat.overall.cpi 1153 ± 2% +92.8% 2225 ± 13% perf-stat.overall.cycles-between-cache-misses 0.90 ± 2% -42.8% 0.52 ± 11% perf-stat.overall.ipc 6.293e+08 +14.9% 7.231e+08 ± 3% perf-stat.ps.branch-instructions 27913642 +15.6% 32280223 perf-stat.ps.branch-misses 21928606 +32.8% 29130512 perf-stat.ps.cache-references 3413 +84.3% 6292 perf-stat.ps.context-switches 3.407e+09 ± 2% +100.9% 6.847e+09 ± 14% perf-stat.ps.cpu-cycles 173.70 +31.8% 229.01 ± 2% perf-stat.ps.cpu-migrations 3.075e+09 +13.2% 3.48e+09 ± 3% perf-stat.ps.instructions 4028 +6.6% 4295 perf-stat.ps.minor-faults 4028 +6.6% 4295 perf-stat.ps.page-faults 0.04 ± 56% -100.0% 0.00 perf-sched.sch_delay.avg.ms.__cond_resched.kmem_cache_alloc_noprof.alloc_extent_state.__clear_extent_bit.btrfs_dirty_folio 0.09 ± 10% -90.6% 0.01 ±299% perf-sched.sch_delay.avg.ms.__cond_resched.submit_bio_noacct.btrfs_submit_chunk.btrfs_submit_bbio.submit_one_bio 0.17 ± 33% -100.0% 0.00 perf-sched.sch_delay.avg.ms.btrfs_start_ordered_extent_nowriteback.btrfs_wait_ordered_range.btrfs_sync_file.do_fsync 0.03 ± 53% +311.8% 0.11 ± 3% perf-sched.sch_delay.avg.ms.schedule_preempt_disabled.rwsem_down_read_slowpath.down_read.btrfs_tree_read_lock_nested 0.01 ±286% +1043.8% 0.11 ± 2% perf-sched.sch_delay.avg.ms.schedule_preempt_disabled.rwsem_down_write_slowpath.down_write.btrfs_tree_lock_nested 0.12 ± 15% -91.4% 0.01 ±300% perf-sched.sch_delay.max.ms.__cond_resched.extent_write_cache_pages.btrfs_writepages.do_writepages.filemap_fdatawrite_wbc 0.07 ± 51% -100.0% 0.00 perf-sched.sch_delay.max.ms.__cond_resched.kmem_cache_alloc_noprof.alloc_extent_state.__clear_extent_bit.btrfs_dirty_folio 0.14 ± 24% -93.7% 0.01 ±299% perf-sched.sch_delay.max.ms.__cond_resched.submit_bio_noacct.btrfs_submit_chunk.btrfs_submit_bbio.submit_one_bio 0.91 ± 29% -100.0% 0.00 perf-sched.sch_delay.max.ms.btrfs_start_ordered_extent_nowriteback.btrfs_wait_ordered_range.btrfs_sync_file.do_fsync 0.09 ± 46% +3267.9% 3.02 ±230% perf-sched.sch_delay.max.ms.schedule_preempt_disabled.rwsem_down_read_slowpath.down_read.btrfs_tree_read_lock_nested 0.01 ±277% +6419.2% 0.65 ±123% perf-sched.sch_delay.max.ms.schedule_preempt_disabled.rwsem_down_write_slowpath.down_write.btrfs_tree_lock_nested 0.18 ± 11% +40.1% 0.25 ± 13% perf-sched.sch_delay.max.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread 311.05 ± 4% -79.9% 62.61 ± 2% perf-sched.total_wait_and_delay.average.ms 6694 ± 3% +331.4% 28884 ± 2% perf-sched.total_wait_and_delay.count.ms 310.98 ± 4% -79.9% 62.51 ± 2% perf-sched.total_wait_time.average.ms 258.61 ± 12% -100.0% 0.00 perf-sched.wait_and_delay.avg.ms.btrfs_start_ordered_extent_nowriteback.btrfs_wait_ordered_range.btrfs_sync_file.do_fsync 31.59 ± 7% -100.0% 0.00 perf-sched.wait_and_delay.avg.ms.do_task_dead.do_exit.do_group_exit.__x64_sys_exit_group.x64_sys_call 0.25 ± 8% -100.0% 0.00 perf-sched.wait_and_delay.avg.ms.do_wait.kernel_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe 517.55 ± 4% -100.0% 0.00 perf-sched.wait_and_delay.avg.ms.io_schedule.blk_mq_get_tag.__blk_mq_alloc_requests.blk_mq_submit_bio 61.81 ± 21% -96.4% 2.24 ± 62% perf-sched.wait_and_delay.avg.ms.io_schedule.folio_wait_bit_common.folio_wait_writeback.__filemap_fdatawait_range 4.06 -100.0% 0.00 perf-sched.wait_and_delay.avg.ms.rcu_gp_kthread.kthread.ret_from_fork.ret_from_fork_asm 0.85 ± 4% -100.0% 0.00 perf-sched.wait_and_delay.avg.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone 16.81 ± 7% -40.1% 10.06 ± 5% perf-sched.wait_and_delay.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread 0.08 ± 7% -100.0% 0.00 perf-sched.wait_and_delay.avg.ms.wait_for_partner.fifo_open.do_dentry_open.vfs_open 71.10 ± 7% -100.0% 0.00 perf-sched.wait_and_delay.count.btrfs_start_ordered_extent_nowriteback.btrfs_wait_ordered_range.btrfs_sync_file.do_fsync 124.00 -100.0% 0.00 perf-sched.wait_and_delay.count.do_task_dead.do_exit.do_group_exit.__x64_sys_exit_group.x64_sys_call 93.80 ± 3% -100.0% 0.00 perf-sched.wait_and_delay.count.do_wait.kernel_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe 816.00 ± 3% -100.0% 0.00 perf-sched.wait_and_delay.count.io_schedule.blk_mq_get_tag.__blk_mq_alloc_requests.blk_mq_submit_bio 896.30 ± 20% -53.8% 414.40 ± 31% perf-sched.wait_and_delay.count.io_schedule.folio_wait_bit_common.folio_wait_writeback.__filemap_fdatawait_range 44.40 ± 10% -100.0% 0.00 perf-sched.wait_and_delay.count.rcu_gp_kthread.kthread.ret_from_fork.ret_from_fork_asm 87.00 -100.0% 0.00 perf-sched.wait_and_delay.count.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone 283.50 ± 6% +59.7% 452.70 ± 4% perf-sched.wait_and_delay.count.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread 36.00 -100.0% 0.00 perf-sched.wait_and_delay.count.wait_for_partner.fifo_open.do_dentry_open.vfs_open 2195 ± 2% -42.3% 1266 ± 6% perf-sched.wait_and_delay.count.worker_thread.kthread.ret_from_fork.ret_from_fork_asm 1312 ± 25% -100.0% 0.00 perf-sched.wait_and_delay.max.ms.btrfs_start_ordered_extent_nowriteback.btrfs_wait_ordered_range.btrfs_sync_file.do_fsync 1503 ± 32% -100.0% 0.00 perf-sched.wait_and_delay.max.ms.do_task_dead.do_exit.do_group_exit.__x64_sys_exit_group.x64_sys_call 0.93 ± 21% -100.0% 0.00 perf-sched.wait_and_delay.max.ms.do_wait.kernel_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe 1775 ± 14% -100.0% 0.00 perf-sched.wait_and_delay.max.ms.io_schedule.blk_mq_get_tag.__blk_mq_alloc_requests.blk_mq_submit_bio 1699 ± 13% -92.7% 123.85 ± 56% perf-sched.wait_and_delay.max.ms.io_schedule.folio_wait_bit_common.folio_wait_writeback.__filemap_fdatawait_range 5.24 ± 32% -100.0% 0.00 perf-sched.wait_and_delay.max.ms.rcu_gp_kthread.kthread.ret_from_fork.ret_from_fork_asm 1.94 ± 9% -100.0% 0.00 perf-sched.wait_and_delay.max.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone 0.18 ± 18% -100.0% 0.00 perf-sched.wait_and_delay.max.ms.wait_for_partner.fifo_open.do_dentry_open.vfs_open 520.63 ± 38% -99.6% 2.04 ±300% perf-sched.wait_time.avg.ms.__cond_resched.extent_write_cache_pages.btrfs_writepages.do_writepages.filemap_fdatawrite_wbc 12.11 ±297% -100.0% 0.00 perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc_noprof.alloc_extent_state.__clear_extent_bit.btrfs_dirty_folio 550.61 ± 26% -99.8% 0.86 ±300% perf-sched.wait_time.avg.ms.__cond_resched.submit_bio_noacct.btrfs_submit_chunk.btrfs_submit_bbio.submit_one_bio 258.43 ± 12% -100.0% 0.00 perf-sched.wait_time.avg.ms.btrfs_start_ordered_extent_nowriteback.btrfs_wait_ordered_range.btrfs_sync_file.do_fsync 517.46 ± 4% -98.8% 6.46 ±116% perf-sched.wait_time.avg.ms.io_schedule.blk_mq_get_tag.__blk_mq_alloc_requests.blk_mq_submit_bio 61.80 ± 21% -96.4% 2.22 ± 62% perf-sched.wait_time.avg.ms.io_schedule.folio_wait_bit_common.folio_wait_writeback.__filemap_fdatawait_range 6.98 ±198% +503.0% 42.09 ± 4% perf-sched.wait_time.avg.ms.schedule_preempt_disabled.rwsem_down_read_slowpath.down_read.btrfs_tree_read_lock_nested 0.11 ±298% +5798.7% 6.59 ± 16% perf-sched.wait_time.avg.ms.schedule_preempt_disabled.rwsem_down_write_slowpath.down_write.btrfs_tree_lock_nested 16.72 ± 7% -40.3% 9.98 ± 5% perf-sched.wait_time.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread 1160 ± 36% -99.8% 2.04 ±300% perf-sched.wait_time.max.ms.__cond_resched.extent_write_cache_pages.btrfs_writepages.do_writepages.filemap_fdatawrite_wbc 36.11 ±298% -100.0% 0.00 perf-sched.wait_time.max.ms.__cond_resched.kmem_cache_alloc_noprof.alloc_extent_state.__clear_extent_bit.btrfs_dirty_folio 1344 ± 25% -99.9% 0.86 ±300% perf-sched.wait_time.max.ms.__cond_resched.submit_bio_noacct.btrfs_submit_chunk.btrfs_submit_bbio.submit_one_bio 1312 ± 25% -100.0% 0.00 perf-sched.wait_time.max.ms.btrfs_start_ordered_extent_nowriteback.btrfs_wait_ordered_range.btrfs_sync_file.do_fsync 1775 ± 14% -96.5% 62.99 ±153% perf-sched.wait_time.max.ms.io_schedule.blk_mq_get_tag.__blk_mq_alloc_requests.blk_mq_submit_bio 1699 ± 13% -92.7% 123.76 ± 56% perf-sched.wait_time.max.ms.io_schedule.folio_wait_bit_common.folio_wait_writeback.__filemap_fdatawait_range 87.05 ±203% +562.4% 576.63 ± 58% perf-sched.wait_time.max.ms.schedule_preempt_disabled.rwsem_down_read_slowpath.down_read.btrfs_tree_read_lock_nested 0.11 ±297% +2.5e+05% 276.17 ± 46% perf-sched.wait_time.max.ms.schedule_preempt_disabled.rwsem_down_write_slowpath.down_write.btrfs_tree_lock_nested *************************************************************************************************** lkp-icl-2sp4: 128 threads 2 sockets Intel(R) Xeon(R) Platinum 8358 CPU @ 2.60GHz (Ice Lake) with 128G memory ========================================================================================= compiler/cpufreq_governor/disk/fs/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime: gcc-12/performance/1HDD/btrfs/x86_64-rhel-9.4/100%/debian-12-x86_64-20240206.cgz/lkp-icl-2sp4/copy-file/stress-ng/60s commit: 846b534075 ("btrfs: fix typo in space info explanation") 5e85262e54 ("btrfs: fix fsync of files with no hard links not persisting deletion") 846b534075f45d5b 5e85262e542d6da8898bb8563a7 ---------------- --------------------------- %stddev %change %stddev \ | \ 823946 -46.9% 437583 ± 2% cpuidle..usage 8144 ± 5% +24.5% 10135 ± 2% uptime.idle 2739200 ± 13% -35.9% 1754761 ± 4% numa-numastat.node0.local_node 2802155 ± 12% -35.3% 1811817 ± 4% numa-numastat.node0.numa_hit 45.55 ± 11% +52.7% 69.54 ± 3% iostat.cpu.idle 53.51 ± 9% -47.1% 28.33 ± 8% iostat.cpu.iowait 0.58 ± 2% +205.6% 1.76 ± 8% iostat.cpu.system 214.90 ± 10% -33.1% 143.70 ± 9% perf-c2c.DRAM.local 309.50 ± 17% +44.9% 448.40 ± 17% perf-c2c.DRAM.remote 141.70 ± 19% +79.3% 254.00 ± 21% perf-c2c.HITM.remote 4909242 ± 16% -38.3% 3030044 ± 5% numa-meminfo.node0.Inactive 4909242 ± 16% -38.3% 3030044 ± 5% numa-meminfo.node0.Inactive(file) 14849 ± 14% -77.3% 3372 ± 19% numa-meminfo.node0.Writeback 4951 ± 24% +55.6% 7704 ± 5% numa-meminfo.node1.Dirty 8065 ± 24% -58.9% 3316 ± 21% numa-meminfo.node1.Writeback 45.59 ± 11% +52.6% 69.57 ± 3% vmstat.cpu.id 53.47 ± 9% -47.1% 28.30 ± 8% vmstat.cpu.wa 112259 -32.6% 75701 vmstat.io.bo 119.44 -68.2% 37.98 ± 15% vmstat.procs.b 6317 -13.9% 5436 ± 2% vmstat.system.cs 14212 -14.9% 12092 ± 3% vmstat.system.in 11915567 -21.0% 9413763 meminfo.Cached 13350 ± 2% +22.6% 16366 ± 3% meminfo.Dirty 8170490 -30.6% 5668142 meminfo.Inactive 8170490 -30.6% 5668142 meminfo.Inactive(file) 14292973 -15.2% 12125438 meminfo.Memused 22993 -70.2% 6859 ± 19% meminfo.Writeback 14412570 -14.6% 12307953 meminfo.max_used_kB 43.84 ± 12% +24.8 68.62 ± 3% mpstat.cpu.all.idle% 55.23 ± 9% -26.0 29.23 ± 8% mpstat.cpu.all.iowait% 0.05 ± 3% -0.0 0.03 ± 2% mpstat.cpu.all.irq% 0.05 ± 6% -0.0 0.03 ± 5% mpstat.cpu.all.soft% 0.45 ± 2% +1.3 1.72 ± 9% mpstat.cpu.all.sys% 1.00 +6100.0% 62.00 mpstat.max_utilization.seconds 3.66 ± 2% +94.2% 7.10 ± 30% mpstat.max_utilization_pct 0.59 +217.1% 1.87 ± 7% stress-ng.copy-file.MB_per_sec_copy_rate 18179 -33.4% 12113 stress-ng.copy-file.ops 302.23 -33.6% 200.60 stress-ng.copy-file.ops_per_sec 14350748 -33.0% 9617412 stress-ng.time.file_system_outputs 1420 ± 8% +484.5% 8300 ± 6% stress-ng.time.involuntary_context_switches 41.30 ± 2% +407.0% 209.40 ± 9% stress-ng.time.percent_of_cpu_this_job_got 24.57 ± 2% +415.4% 126.64 ± 9% stress-ng.time.system_time 89786 ± 2% -17.3% 74281 ± 5% stress-ng.time.voluntary_context_switches 1160907 ± 13% -45.0% 638139 ± 3% numa-vmstat.node0.nr_dirtied 1213548 ± 16% -37.3% 761371 ± 5% numa-vmstat.node0.nr_inactive_file 3666 ± 14% -76.8% 852.16 ± 15% numa-vmstat.node0.nr_writeback 1156044 ± 13% -45.0% 635340 ± 3% numa-vmstat.node0.nr_written 1213551 ± 16% -37.3% 761371 ± 5% numa-vmstat.node0.nr_zone_inactive_file 5755 ± 13% -47.1% 3041 ± 5% numa-vmstat.node0.nr_zone_write_pending 2803191 ± 12% -35.4% 1810577 ± 4% numa-vmstat.node0.numa_hit 2740236 ± 13% -36.0% 1753521 ± 4% numa-vmstat.node0.numa_local 1244 ± 24% +56.9% 1953 ± 5% numa-vmstat.node1.nr_dirty 1981 ± 24% -59.4% 804.96 ± 14% numa-vmstat.node1.nr_writeback 1799013 -32.9% 1206900 proc-vmstat.nr_dirtied 3360 ± 2% +21.6% 4086 ± 3% proc-vmstat.nr_dirty 2971433 -20.8% 2353137 proc-vmstat.nr_file_pages 29348580 +1.8% 29883631 proc-vmstat.nr_free_pages 29282199 +1.9% 29836480 proc-vmstat.nr_free_pages_blocks 2034863 -30.4% 1416458 proc-vmstat.nr_inactive_file 38408 -6.3% 36004 proc-vmstat.nr_slab_reclaimable 5706 -70.1% 1708 ± 15% proc-vmstat.nr_writeback 1790881 -32.9% 1201249 proc-vmstat.nr_written 2034863 -30.4% 1416458 proc-vmstat.nr_zone_inactive_file 8998 -35.6% 5795 ± 2% proc-vmstat.nr_zone_write_pending 4444162 -23.1% 3416163 proc-vmstat.numa_hit 4311404 -23.8% 3283749 proc-vmstat.numa_local 566.30 ± 89% +1255.8% 7678 ±247% proc-vmstat.numa_pte_updates 4505726 -22.8% 3477149 proc-vmstat.pgalloc_normal 7184379 -32.4% 4859319 proc-vmstat.pgpgout 2.68 ± 2% -25.7% 1.99 ± 4% perf-stat.i.MPKI 7.342e+08 +6.6% 7.826e+08 perf-stat.i.branch-instructions 3.45 -0.7 2.77 ± 2% perf-stat.i.branch-miss-rate% 33462192 -4.2% 32070836 perf-stat.i.branch-misses 10.22 +3.1 13.35 perf-stat.i.cache-miss-rate% 5043813 ± 2% -14.9% 4291664 perf-stat.i.cache-misses 50234628 -34.5% 32914395 perf-stat.i.cache-references 5523 ± 3% -8.1% 5077 perf-stat.i.context-switches 1.15 +236.5% 3.88 ± 6% perf-stat.i.cpi 3.417e+09 +149.6% 8.527e+09 ± 6% perf-stat.i.cpu-cycles 196.17 +12.1% 219.94 ± 2% perf-stat.i.cpu-migrations 615.76 +229.7% 2030 ± 7% perf-stat.i.cycles-between-cache-misses 0.97 -58.0% 0.41 ± 5% perf-stat.i.ipc 1.39 ± 2% -18.2% 1.14 perf-stat.overall.MPKI 4.56 -0.5 4.10 ± 2% perf-stat.overall.branch-miss-rate% 10.03 +3.0 13.04 perf-stat.overall.cache-miss-rate% 0.94 +140.0% 2.27 ± 6% perf-stat.overall.cpi 677.89 +193.3% 1988 ± 6% perf-stat.overall.cycles-between-cache-misses 1.06 -58.2% 0.44 ± 6% perf-stat.overall.ipc 7.214e+08 +6.6% 7.691e+08 perf-stat.ps.branch-instructions 32880299 -4.1% 31516354 perf-stat.ps.branch-misses 4956935 ± 2% -14.9% 4218155 perf-stat.ps.cache-misses 49395581 -34.5% 32356624 perf-stat.ps.cache-references 5429 ± 3% -8.1% 4992 perf-stat.ps.context-switches 3.359e+09 +149.7% 8.387e+09 ± 6% perf-stat.ps.cpu-cycles 192.84 +12.1% 216.24 ± 2% perf-stat.ps.cpu-migrations 0.09 ± 14% +156.9% 0.23 ± 61% perf-sched.sch_delay.avg.ms.__cond_resched.__alloc_frozen_pages_noprof.alloc_pages_mpol.folio_alloc_noprof.__filemap_get_folio 0.11 ± 30% +1780.8% 2.08 ±170% perf-sched.sch_delay.avg.ms.__cond_resched.__filemap_get_folio.prepare_one_folio.constprop.0 0.09 ± 28% +4092.1% 3.64 ±235% perf-sched.sch_delay.avg.ms.__cond_resched.kmem_cache_alloc_noprof.alloc_extent_state.__set_extent_bit.set_extent_bit 0.11 ± 37% -71.8% 0.03 ±153% perf-sched.sch_delay.avg.ms.__cond_resched.kmem_cache_alloc_noprof.start_transaction.btrfs_dirty_inode.touch_atime 0.23 ± 68% -60.2% 0.09 ± 3% perf-sched.sch_delay.avg.ms.btrfs_start_ordered_extent_nowriteback.btrfs_wait_ordered_range.btrfs_remap_file_range.vfs_copy_file_range 0.22 ± 85% -100.0% 0.00 perf-sched.sch_delay.avg.ms.btrfs_start_ordered_extent_nowriteback.btrfs_wait_ordered_range.btrfs_sync_file.do_fsync 0.04 ± 17% +268.7% 0.15 ±175% perf-sched.sch_delay.avg.ms.schedule_preempt_disabled.rwsem_down_write_slowpath.down_write.btrfs_tree_lock_nested 0.16 ± 24% -79.4% 0.03 ±154% perf-sched.sch_delay.max.ms.__cond_resched.kmem_cache_alloc_noprof.start_transaction.btrfs_dirty_inode.touch_atime 0.11 ± 38% +44277.4% 48.59 ±284% perf-sched.sch_delay.max.ms.__cond_resched.lock_delalloc_folios.find_lock_delalloc_range.writepage_delalloc.extent_writepage 80.59 ±124% -100.0% 0.00 perf-sched.sch_delay.max.ms.btrfs_start_ordered_extent_nowriteback.btrfs_wait_ordered_range.btrfs_sync_file.do_fsync 154.78 ± 4% +15.1% 178.11 ± 4% perf-sched.total_wait_and_delay.average.ms 154.67 ± 4% +15.1% 177.96 ± 4% perf-sched.total_wait_time.average.ms 41.27 ±207% +533.8% 261.54 ± 17% perf-sched.wait_and_delay.avg.ms.__cond_resched.lock_delalloc_folios.find_lock_delalloc_range.writepage_delalloc.extent_writepage 200.09 ± 3% -68.0% 64.08 ± 14% perf-sched.wait_and_delay.avg.ms.btrfs_start_ordered_extent_nowriteback.btrfs_wait_ordered_range.btrfs_remap_file_range.vfs_copy_file_range 198.42 ± 3% -100.0% 0.00 perf-sched.wait_and_delay.avg.ms.btrfs_start_ordered_extent_nowriteback.btrfs_wait_ordered_range.btrfs_sync_file.do_fsync 37.96 ± 14% +150.7% 95.16 ± 22% perf-sched.wait_and_delay.avg.ms.io_schedule.folio_wait_bit_common.folio_wait_writeback.__filemap_fdatawait_range 18.02 ± 24% +270.4% 66.75 ± 16% perf-sched.wait_and_delay.avg.ms.schedule_preempt_disabled.rwsem_down_read_slowpath.down_read.btrfs_tree_read_lock_nested 8.29 ± 68% +438.3% 44.64 ± 25% perf-sched.wait_and_delay.avg.ms.schedule_preempt_disabled.rwsem_down_write_slowpath.down_write.btrfs_tree_lock_nested 7.15 ± 11% +199.9% 21.45 ± 2% perf-sched.wait_and_delay.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread 170.75 ± 10% +46.2% 249.63 ± 10% perf-sched.wait_and_delay.avg.ms.worker_thread.kthread.ret_from_fork.ret_from_fork_asm 0.50 ±204% +26480.0% 132.90 ± 28% perf-sched.wait_and_delay.count.__cond_resched.lock_delalloc_folios.find_lock_delalloc_range.writepage_delalloc.extent_writepage 1243 ± 5% -35.0% 808.80 ± 7% perf-sched.wait_and_delay.count.btrfs_start_ordered_extent_nowriteback.btrfs_wait_ordered_range.btrfs_remap_file_range.vfs_copy_file_range 1210 ± 3% -100.0% 0.00 perf-sched.wait_and_delay.count.btrfs_start_ordered_extent_nowriteback.btrfs_wait_ordered_range.btrfs_sync_file.do_fsync 3079 -30.7% 2134 perf-sched.wait_and_delay.count.io_schedule.folio_wait_bit_common.folio_wait_writeback.__filemap_fdatawait_range 379.00 ± 22% +107.1% 784.90 ± 11% perf-sched.wait_and_delay.count.schedule_preempt_disabled.rwsem_down_read_slowpath.down_read.btrfs_tree_read_lock_nested 83.70 ± 60% +349.1% 375.90 ± 10% perf-sched.wait_and_delay.count.schedule_preempt_disabled.rwsem_down_write_slowpath.down_write.btrfs_tree_lock_nested 673.70 ± 11% -67.7% 217.30 ± 3% perf-sched.wait_and_delay.count.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread 74.87 ±216% +687.0% 589.20 ± 10% perf-sched.wait_and_delay.max.ms.__cond_resched.lock_delalloc_folios.find_lock_delalloc_range.writepage_delalloc.extent_writepage 422.52 ± 20% -45.8% 229.04 ± 12% perf-sched.wait_and_delay.max.ms.btrfs_start_ordered_extent_nowriteback.btrfs_wait_ordered_range.btrfs_remap_file_range.vfs_copy_file_range 501.20 ± 18% -100.0% 0.00 perf-sched.wait_and_delay.max.ms.btrfs_start_ordered_extent_nowriteback.btrfs_wait_ordered_range.btrfs_sync_file.do_fsync 28.77 ± 66% +1173.7% 366.39 ± 21% perf-sched.wait_time.avg.ms.__cond_resched.__alloc_frozen_pages_noprof.alloc_pages_mpol.folio_alloc_noprof.__filemap_get_folio 43.62 ± 74% +685.2% 342.46 ± 10% perf-sched.wait_time.avg.ms.__cond_resched.__filemap_get_folio.prepare_one_folio.constprop.0 38.14 ± 71% +829.9% 354.72 ± 18% perf-sched.wait_time.avg.ms.__cond_resched.btrfs_buffered_write.btrfs_do_write_iter.vfs_write.ksys_write 36.28 ± 66% +515.5% 223.32 ± 17% perf-sched.wait_time.avg.ms.__cond_resched.extent_write_cache_pages.btrfs_writepages.do_writepages.filemap_fdatawrite_wbc 38.49 ± 69% +694.7% 305.87 ± 17% perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc_noprof.alloc_extent_state.__set_extent_bit.set_extent_bit 53.67 ±110% -96.4% 1.94 ±297% perf-sched.wait_time.avg.ms.__cond_resched.kmem_cache_alloc_noprof.start_transaction.btrfs_dirty_inode.touch_atime 52.47 ±158% +397.0% 260.79 ± 16% perf-sched.wait_time.avg.ms.__cond_resched.lock_delalloc_folios.find_lock_delalloc_range.writepage_delalloc.extent_writepage 199.86 ± 3% -68.0% 63.99 ± 14% perf-sched.wait_time.avg.ms.btrfs_start_ordered_extent_nowriteback.btrfs_wait_ordered_range.btrfs_remap_file_range.vfs_copy_file_range 198.21 ± 3% -100.0% 0.00 perf-sched.wait_time.avg.ms.btrfs_start_ordered_extent_nowriteback.btrfs_wait_ordered_range.btrfs_sync_file.do_fsync 37.86 ± 14% +150.9% 94.99 ± 22% perf-sched.wait_time.avg.ms.io_schedule.folio_wait_bit_common.folio_wait_writeback.__filemap_fdatawait_range 17.94 ± 24% +271.5% 66.66 ± 16% perf-sched.wait_time.avg.ms.schedule_preempt_disabled.rwsem_down_read_slowpath.down_read.btrfs_tree_read_lock_nested 10.87 ± 37% +309.3% 44.50 ± 24% perf-sched.wait_time.avg.ms.schedule_preempt_disabled.rwsem_down_write_slowpath.down_write.btrfs_tree_lock_nested 7.06 ± 11% +202.8% 21.37 ± 2% perf-sched.wait_time.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread 170.68 ± 10% +46.2% 249.55 ± 10% perf-sched.wait_time.avg.ms.worker_thread.kthread.ret_from_fork.ret_from_fork_asm 225.30 ± 43% +146.1% 554.37 ± 15% perf-sched.wait_time.max.ms.__cond_resched.__alloc_frozen_pages_noprof.alloc_pages_mpol.folio_alloc_noprof.__filemap_get_folio 179.96 ± 58% +225.3% 585.39 ± 12% perf-sched.wait_time.max.ms.__cond_resched.extent_write_cache_pages.btrfs_writepages.do_writepages.filemap_fdatawrite_wbc 243.25 ± 38% +140.0% 583.77 ± 10% perf-sched.wait_time.max.ms.__cond_resched.kmem_cache_alloc_noprof.alloc_extent_state.__set_extent_bit.set_extent_bit 108.35 ±100% -98.2% 1.98 ±297% perf-sched.wait_time.max.ms.__cond_resched.kmem_cache_alloc_noprof.start_transaction.btrfs_dirty_inode.touch_atime 119.47 ±140% +393.1% 589.11 ± 10% perf-sched.wait_time.max.ms.__cond_resched.lock_delalloc_folios.find_lock_delalloc_range.writepage_delalloc.extent_writepage 422.43 ± 20% -45.8% 228.95 ± 12% perf-sched.wait_time.max.ms.btrfs_start_ordered_extent_nowriteback.btrfs_wait_ordered_range.btrfs_remap_file_range.vfs_copy_file_range 501.11 ± 18% -100.0% 0.00 perf-sched.wait_time.max.ms.btrfs_start_ordered_extent_nowriteback.btrfs_wait_ordered_range.btrfs_sync_file.do_fsync Disclaimer: Results have been estimated based on internal Intel analysis and are provided for informational purposes only. Any difference in system hardware or software design or configuration may affect actual performance. -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki