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Message-ID: <202311221505.65236274-oliver.sang@intel.com>
Date: Wed, 22 Nov 2023 21:42:58 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Yosry Ahmed <yosryahmed@...gle.com>
CC: <oe-lkp@...ts.linux.dev>, <lkp@...el.com>,
Domenico Cerasuolo <cerasuolodomenico@...il.com>,
<linux-kernel@...r.kernel.org>, <cgroups@...r.kernel.org>,
<linux-mm@...ck.org>, <ying.huang@...el.com>,
<feng.tang@...el.com>, <fengwei.yin@...el.com>,
Andrew Morton <akpm@...ux-foundation.org>,
Johannes Weiner <hannes@...xchg.org>,
"Michal Hocko" <mhocko@...nel.org>,
Roman Gushchin <roman.gushchin@...ux.dev>,
Shakeel Butt <shakeelb@...gle.com>,
Muchun Song <muchun.song@...ux.dev>,
Ivan Babrou <ivan@...udflare.com>, Tejun Heo <tj@...nel.org>,
Michal Koutný <mkoutny@...e.com>,
Waiman Long <longman@...hat.com>, <kernel-team@...udflare.com>,
Wei Xu <weixugc@...gle.com>, Greg Thelen <gthelen@...gle.com>,
Yosry Ahmed <yosryahmed@...gle.com>, <oliver.sang@...el.com>
Subject: Re: [PATCH v3 5/5] mm: memcg: restore subtree stats flushing
Hello,
kernel test robot noticed a -3.7% regression of aim7.jobs-per-min on:
commit: f6eccb430010201d3c155b73035f3bf755fe7697 ("[PATCH v3 5/5] mm: memcg: restore subtree stats flushing")
url: https://github.com/intel-lab-lkp/linux/commits/Yosry-Ahmed/mm-memcg-change-flush_next_time-to-flush_last_time/20231116-103300
base: https://git.kernel.org/cgit/linux/kernel/git/akpm/mm.git mm-everything
patch link: https://lore.kernel.org/all/20231116022411.2250072-6-yosryahmed@google.com/
patch subject: [PATCH v3 5/5] mm: memcg: restore subtree stats flushing
testcase: aim7
test machine: 128 threads 2 sockets Intel(R) Xeon(R) Gold 6338 CPU @ 2.00GHz (Ice Lake) with 256G memory
parameters:
disk: 1BRD_48G
fs: ext4
test: disk_rr
load: 3000
cpufreq_governor: performance
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 <oliver.sang@...el.com>
| Closes: https://lore.kernel.org/oe-lkp/202311221505.65236274-oliver.sang@intel.com
Details are as below:
-------------------------------------------------------------------------------------------------->
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20231122/202311221505.65236274-oliver.sang@intel.com
=========================================================================================
compiler/cpufreq_governor/disk/fs/kconfig/load/rootfs/tbox_group/test/testcase:
gcc-12/performance/1BRD_48G/ext4/x86_64-rhel-8.3/3000/debian-11.1-x86_64-20220510.cgz/lkp-icl-2sp2/disk_rr/aim7
commit:
4c86da8ea2 ("mm: workingset: move the stats flush into workingset_test_recent()")
f6eccb4300 ("mm: memcg: restore subtree stats flushing")
4c86da8ea2d2f784 f6eccb430010201d3c155b73035
---------------- ---------------------------
%stddev %change %stddev
\ | \
15513 ± 14% +17.4% 18206 ± 7% numa-vmstat.node1.nr_mapped
616938 -3.7% 593885 aim7.jobs-per-min
149804 ± 4% +17.6% 176189 ± 6% aim7.time.involuntary_context_switches
2310 +6.3% 2455 aim7.time.system_time
24960256 ± 9% -14.1% 21429987 ± 7% perf-stat.i.branch-misses
1357010 ± 14% -22.6% 1050646 ± 10% perf-stat.i.dTLB-load-misses
0.20 ± 8% -0.0 0.16 ± 7% perf-stat.overall.branch-miss-rate%
2.80 +5.7% 2.96 perf-stat.overall.cpi
1506 +7.9% 1624 ± 2% perf-stat.overall.cycles-between-cache-misses
0.36 -5.4% 0.34 perf-stat.overall.ipc
24383919 ± 8% -14.5% 20853721 ± 7% perf-stat.ps.branch-misses
0.00 ±223% +2700.0% 0.01 ± 10% perf-sched.sch_delay.avg.ms.__cond_resched.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
0.00 ± 35% +1454.2% 0.06 ± 54% perf-sched.sch_delay.avg.ms.do_task_dead.do_exit.do_group_exit.__x64_sys_exit_group.do_syscall_64
0.01 ± 13% +3233.3% 0.18 ± 41% perf-sched.sch_delay.avg.ms.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64
0.01 ± 30% +5900.0% 0.31 ± 47% perf-sched.sch_delay.avg.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
0.00 ±141% +337.5% 0.01 ± 6% perf-sched.sch_delay.avg.ms.schedule_timeout.__wait_for_common.__flush_work.isra.0
0.00 ± 9% +2843.5% 0.11 ±116% perf-sched.sch_delay.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
0.00 ±223% +660.0% 0.01 ± 16% perf-sched.sch_delay.max.ms.__cond_resched.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
0.01 ± 9% -41.3% 0.00 ± 11% perf-sched.sch_delay.max.ms.__x64_sys_pause.do_syscall_64.entry_SYSCALL_64_after_hwframe.[unknown]
0.20 ±206% +3311.9% 6.66 ± 72% perf-sched.sch_delay.max.ms.do_task_dead.do_exit.do_group_exit.__x64_sys_exit_group.do_syscall_64
0.02 ± 41% +1.8e+05% 28.67 ± 53% perf-sched.sch_delay.max.ms.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64
0.01 ± 52% +41275.8% 2.28 ± 72% perf-sched.sch_delay.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt
0.01 ± 23% +2.8e+05% 20.56 ± 65% perf-sched.sch_delay.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
0.01 ± 11% +142.9% 0.01 ± 76% perf-sched.sch_delay.max.ms.schedule_hrtimeout_range_clock.do_poll.constprop.0.do_sys_poll
0.00 ±141% +412.5% 0.01 ± 15% perf-sched.sch_delay.max.ms.schedule_timeout.__wait_for_common.__flush_work.isra.0
0.01 ± 42% +177.3% 0.02 ± 66% perf-sched.sch_delay.max.ms.schedule_timeout.kcompactd.kthread.ret_from_fork
0.01 ± 20% +1.3e+05% 12.95 ±105% perf-sched.sch_delay.max.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
0.07 ±131% +289.2% 0.27 ± 55% perf-sched.total_sch_delay.average.ms
0.39 ± 5% +307.4% 1.58 ± 22% perf-sched.wait_and_delay.avg.ms.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64
0.33 ± 46% +5674.0% 18.79 ± 73% perf-sched.wait_and_delay.avg.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
0.83 ±223% +41660.0% 348.00 ± 74% perf-sched.wait_and_delay.count.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
11.25 ± 64% +225.6% 36.62 ± 45% perf-sched.wait_and_delay.max.ms.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64
0.81 ± 44% +1.1e+05% 912.56 ± 92% perf-sched.wait_and_delay.max.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
0.61 ±223% +11430.9% 69.86 ± 55% perf-sched.wait_time.avg.ms.__cond_resched.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
1.44 ± 50% +1120.7% 17.58 ± 49% perf-sched.wait_time.avg.ms.devkmsg_read.vfs_read.ksys_read.do_syscall_64
0.06 ±204% +6992.9% 4.16 ± 91% perf-sched.wait_time.avg.ms.do_task_dead.do_exit.do_group_exit.get_signal.arch_do_signal_or_restart
0.38 ± 5% +265.2% 1.40 ± 21% perf-sched.wait_time.avg.ms.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64
0.57 ±141% +1413.0% 8.59 ±110% perf-sched.wait_time.avg.ms.schedule_hrtimeout_range_clock.do_select.core_sys_select.kern_select
0.00 ±223% +3.8e+06% 25.42 ±143% perf-sched.wait_time.avg.ms.schedule_timeout.__wait_for_common.__flush_work.isra.0
0.35 ± 24% +5215.2% 18.72 ± 73% perf-sched.wait_time.avg.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
1.03 ± 70% +1610.0% 17.59 ± 49% perf-sched.wait_time.avg.ms.syslog_print.do_syslog.kmsg_read.vfs_read
2.82 ±223% +6949.3% 198.44 ± 60% perf-sched.wait_time.max.ms.__cond_resched.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
2.69 ± 45% +4345.1% 119.46 ± 71% perf-sched.wait_time.max.ms.devkmsg_read.vfs_read.ksys_read.do_syscall_64
0.10 ±212% +10364.1% 10.59 ±106% perf-sched.wait_time.max.ms.do_task_dead.do_exit.do_group_exit.get_signal.arch_do_signal_or_restart
1.14 ±141% +6549.1% 75.53 ±137% perf-sched.wait_time.max.ms.schedule_hrtimeout_range_clock.do_select.core_sys_select.kern_select
0.00 ±223% +6.5e+06% 76.30 ±141% perf-sched.wait_time.max.ms.schedule_timeout.__wait_for_common.__flush_work.isra.0
0.91 ± 15% +1e+05% 912.19 ± 92% perf-sched.wait_time.max.ms.schedule_timeout.__wait_for_common.wait_for_completion_state.kernel_clone
2.06 ± 70% +5708.3% 119.46 ± 71% perf-sched.wait_time.max.ms.syslog_print.do_syslog.kmsg_read.vfs_read
2.59 -0.1 2.45 perf-profile.calltrace.cycles-pp.ext4_block_write_begin.ext4_da_write_begin.generic_perform_write.ext4_buffered_write_iter.vfs_write
2.10 -0.1 1.99 perf-profile.calltrace.cycles-pp.ext4_da_do_write_end.generic_perform_write.ext4_buffered_write_iter.vfs_write.ksys_write
0.70 ± 2% -0.1 0.59 perf-profile.calltrace.cycles-pp.workingset_activation.folio_mark_accessed.filemap_read.vfs_read.ksys_read
1.75 -0.1 1.65 perf-profile.calltrace.cycles-pp.copy_page_to_iter.filemap_read.vfs_read.ksys_read.do_syscall_64
1.41 -0.1 1.32 perf-profile.calltrace.cycles-pp.llseek
1.66 -0.1 1.57 perf-profile.calltrace.cycles-pp._copy_to_iter.copy_page_to_iter.filemap_read.vfs_read.ksys_read
1.75 -0.1 1.67 perf-profile.calltrace.cycles-pp.block_write_end.ext4_da_do_write_end.generic_perform_write.ext4_buffered_write_iter.vfs_write
1.66 -0.1 1.58 perf-profile.calltrace.cycles-pp.__block_commit_write.block_write_end.ext4_da_do_write_end.generic_perform_write.ext4_buffered_write_iter
0.84 -0.1 0.78 perf-profile.calltrace.cycles-pp.ext4_da_map_blocks.ext4_da_get_block_prep.ext4_block_write_begin.ext4_da_write_begin.generic_perform_write
0.86 -0.1 0.80 perf-profile.calltrace.cycles-pp.ext4_da_get_block_prep.ext4_block_write_begin.ext4_da_write_begin.generic_perform_write.ext4_buffered_write_iter
0.94 -0.1 0.89 perf-profile.calltrace.cycles-pp.zero_user_segments.ext4_block_write_begin.ext4_da_write_begin.generic_perform_write.ext4_buffered_write_iter
0.92 -0.1 0.86 perf-profile.calltrace.cycles-pp.memset_orig.zero_user_segments.ext4_block_write_begin.ext4_da_write_begin.generic_perform_write
0.71 -0.1 0.66 ± 2% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.llseek
0.86 -0.0 0.81 perf-profile.calltrace.cycles-pp.copy_page_from_iter_atomic.generic_perform_write.ext4_buffered_write_iter.vfs_write.ksys_write
0.60 -0.0 0.56 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.llseek
0.94 -0.0 0.90 perf-profile.calltrace.cycles-pp.mark_buffer_dirty.__block_commit_write.block_write_end.ext4_da_do_write_end.generic_perform_write
0.85 -0.0 0.82 perf-profile.calltrace.cycles-pp.filemap_get_pages.filemap_read.vfs_read.ksys_read.do_syscall_64
0.71 -0.0 0.69 perf-profile.calltrace.cycles-pp.filemap_get_read_batch.filemap_get_pages.filemap_read.vfs_read.ksys_read
0.94 -0.0 0.91 perf-profile.calltrace.cycles-pp.balance_dirty_pages_ratelimited_flags.generic_perform_write.ext4_buffered_write_iter.vfs_write.ksys_write
1.08 -0.0 1.05 perf-profile.calltrace.cycles-pp.try_to_free_buffers.truncate_cleanup_folio.truncate_inode_pages_range.ext4_evict_inode.evict
0.70 -0.0 0.68 perf-profile.calltrace.cycles-pp.__folio_mark_dirty.mark_buffer_dirty.__block_commit_write.block_write_end.ext4_da_do_write_end
1.35 -0.0 1.34 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.folio_lruvec_lock_irqsave.folio_batch_move_lru.__folio_batch_release
1.39 -0.0 1.37 perf-profile.calltrace.cycles-pp.folio_batch_move_lru.__folio_batch_release.truncate_inode_pages_range.ext4_evict_inode.evict
1.35 -0.0 1.34 perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.folio_lruvec_lock_irqsave.folio_batch_move_lru.__folio_batch_release.truncate_inode_pages_range
1.35 -0.0 1.34 perf-profile.calltrace.cycles-pp.folio_lruvec_lock_irqsave.folio_batch_move_lru.__folio_batch_release.truncate_inode_pages_range.ext4_evict_inode
0.53 -0.0 0.51 perf-profile.calltrace.cycles-pp.folio_alloc.__filemap_get_folio.ext4_da_write_begin.generic_perform_write.ext4_buffered_write_iter
28.25 +0.2 28.47 perf-profile.calltrace.cycles-pp.__folio_batch_release.truncate_inode_pages_range.ext4_evict_inode.evict.__dentry_kill
25.49 +0.2 25.73 perf-profile.calltrace.cycles-pp.release_pages.__folio_batch_release.truncate_inode_pages_range.ext4_evict_inode.evict
24.68 +0.3 24.94 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.folio_lruvec_lock_irqsave.release_pages.__folio_batch_release
24.70 +0.3 24.96 perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.folio_lruvec_lock_irqsave.release_pages.__folio_batch_release.truncate_inode_pages_range
24.70 +0.3 24.97 perf-profile.calltrace.cycles-pp.folio_lruvec_lock_irqsave.release_pages.__folio_batch_release.truncate_inode_pages_range.ext4_evict_inode
33.66 +0.3 33.95 perf-profile.calltrace.cycles-pp.ext4_buffered_write_iter.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe
23.80 +0.3 24.11 perf-profile.calltrace.cycles-pp.folio_mark_accessed.filemap_read.vfs_read.ksys_read.do_syscall_64
32.63 +0.3 32.97 perf-profile.calltrace.cycles-pp.generic_perform_write.ext4_buffered_write_iter.vfs_write.ksys_write.do_syscall_64
22.93 +0.4 23.35 perf-profile.calltrace.cycles-pp.folio_activate.folio_mark_accessed.filemap_read.vfs_read.ksys_read
22.08 +0.4 22.50 perf-profile.calltrace.cycles-pp.folio_lruvec_lock_irqsave.folio_batch_move_lru.folio_activate.folio_mark_accessed.filemap_read
22.07 +0.4 22.49 perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.folio_lruvec_lock_irqsave.folio_batch_move_lru.folio_activate.folio_mark_accessed
22.06 +0.4 22.48 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.folio_lruvec_lock_irqsave.folio_batch_move_lru.folio_activate
22.88 +0.4 23.31 perf-profile.calltrace.cycles-pp.folio_batch_move_lru.folio_activate.folio_mark_accessed.filemap_read.vfs_read
27.90 +0.6 28.49 perf-profile.calltrace.cycles-pp.ext4_da_write_begin.generic_perform_write.ext4_buffered_write_iter.vfs_write.ksys_write
25.00 +0.8 25.76 perf-profile.calltrace.cycles-pp.__filemap_get_folio.ext4_da_write_begin.generic_perform_write.ext4_buffered_write_iter.vfs_write
23.72 +0.8 24.54 perf-profile.calltrace.cycles-pp.filemap_add_folio.__filemap_get_folio.ext4_da_write_begin.generic_perform_write.ext4_buffered_write_iter
22.56 +0.8 23.39 perf-profile.calltrace.cycles-pp.folio_add_lru.filemap_add_folio.__filemap_get_folio.ext4_da_write_begin.generic_perform_write
22.52 +0.8 23.34 perf-profile.calltrace.cycles-pp.folio_batch_move_lru.folio_add_lru.filemap_add_folio.__filemap_get_folio.ext4_da_write_begin
21.97 +0.8 22.81 perf-profile.calltrace.cycles-pp.folio_lruvec_lock_irqsave.folio_batch_move_lru.folio_add_lru.filemap_add_folio.__filemap_get_folio
21.94 +0.8 22.79 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.folio_lruvec_lock_irqsave.folio_batch_move_lru.folio_add_lru
21.96 +0.8 22.80 perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.folio_lruvec_lock_irqsave.folio_batch_move_lru.folio_add_lru.filemap_add_folio
0.41 -0.2 0.24 ± 2% perf-profile.children.cycles-pp.mem_cgroup_css_rstat_flush
0.54 -0.2 0.37 ± 2% perf-profile.children.cycles-pp.cgroup_rstat_flush_locked
0.55 -0.2 0.38 perf-profile.children.cycles-pp.cgroup_rstat_flush
2.60 -0.1 2.46 perf-profile.children.cycles-pp.ext4_block_write_begin
1.66 -0.1 1.56 perf-profile.children.cycles-pp.llseek
0.70 ± 2% -0.1 0.59 perf-profile.children.cycles-pp.workingset_activation
2.12 -0.1 2.02 perf-profile.children.cycles-pp.ext4_da_do_write_end
0.52 ± 3% -0.1 0.42 perf-profile.children.cycles-pp.workingset_age_nonresident
1.76 -0.1 1.66 perf-profile.children.cycles-pp.copy_page_to_iter
1.67 -0.1 1.58 perf-profile.children.cycles-pp._copy_to_iter
1.78 -0.1 1.69 perf-profile.children.cycles-pp.block_write_end
1.67 -0.1 1.59 perf-profile.children.cycles-pp.__block_commit_write
1.00 -0.1 0.94 perf-profile.children.cycles-pp.__entry_text_start
0.86 -0.1 0.81 perf-profile.children.cycles-pp.ext4_da_get_block_prep
0.60 -0.1 0.54 ± 2% perf-profile.children.cycles-pp.__fdget_pos
0.79 -0.1 0.73 ± 2% perf-profile.children.cycles-pp.entry_SYSRETQ_unsafe_stack
0.87 -0.1 0.82 perf-profile.children.cycles-pp.copy_page_from_iter_atomic
0.95 -0.1 0.89 perf-profile.children.cycles-pp.zero_user_segments
0.85 -0.1 0.80 perf-profile.children.cycles-pp.ext4_da_map_blocks
0.95 -0.1 0.90 perf-profile.children.cycles-pp.memset_orig
0.43 -0.0 0.38 ± 2% perf-profile.children.cycles-pp.__fget_light
0.50 -0.0 0.46 perf-profile.children.cycles-pp.asm_sysvec_apic_timer_interrupt
0.47 ± 2% -0.0 0.42 perf-profile.children.cycles-pp.sysvec_apic_timer_interrupt
0.41 ± 3% -0.0 0.36 ± 2% perf-profile.children.cycles-pp.__sysvec_apic_timer_interrupt
0.40 ± 3% -0.0 0.36 ± 2% perf-profile.children.cycles-pp.hrtimer_interrupt
0.37 ± 2% -0.0 0.33 ± 2% perf-profile.children.cycles-pp.__hrtimer_run_queues
0.64 -0.0 0.60 perf-profile.children.cycles-pp.xas_load
0.74 -0.0 0.70 perf-profile.children.cycles-pp.filemap_get_read_batch
0.95 -0.0 0.92 perf-profile.children.cycles-pp.mark_buffer_dirty
0.44 -0.0 0.41 perf-profile.children.cycles-pp.file_modified
0.98 -0.0 0.94 perf-profile.children.cycles-pp.balance_dirty_pages_ratelimited_flags
0.87 -0.0 0.84 perf-profile.children.cycles-pp.filemap_get_pages
0.43 -0.0 0.40 perf-profile.children.cycles-pp.fault_in_iov_iter_readable
0.31 ± 6% -0.0 0.28 perf-profile.children.cycles-pp.disk_rr
0.41 -0.0 0.38 perf-profile.children.cycles-pp.touch_atime
0.38 -0.0 0.35 perf-profile.children.cycles-pp.fault_in_readable
0.32 ± 2% -0.0 0.30 perf-profile.children.cycles-pp.xas_descend
0.37 -0.0 0.34 ± 3% perf-profile.children.cycles-pp.ksys_lseek
0.34 -0.0 0.32 perf-profile.children.cycles-pp.atime_needs_update
1.08 -0.0 1.06 perf-profile.children.cycles-pp.try_to_free_buffers
0.20 ± 2% -0.0 0.17 ± 2% perf-profile.children.cycles-pp.syscall_enter_from_user_mode
0.22 ± 2% -0.0 0.20 ± 2% perf-profile.children.cycles-pp.ext4_es_insert_delayed_block
0.34 ± 2% -0.0 0.32 perf-profile.children.cycles-pp.__cond_resched
0.44 -0.0 0.42 perf-profile.children.cycles-pp.filemap_get_entry
0.23 ± 2% -0.0 0.21 perf-profile.children.cycles-pp.inode_needs_update_time
0.71 -0.0 0.69 perf-profile.children.cycles-pp.__folio_mark_dirty
0.37 -0.0 0.36 perf-profile.children.cycles-pp.__mem_cgroup_charge
0.24 ± 2% -0.0 0.22 ± 2% perf-profile.children.cycles-pp._raw_spin_lock
0.24 -0.0 0.22 perf-profile.children.cycles-pp.syscall_return_via_sysret
0.40 -0.0 0.38 perf-profile.children.cycles-pp.syscall_exit_to_user_mode
0.14 -0.0 0.13 ± 2% perf-profile.children.cycles-pp.up_write
0.50 -0.0 0.49 perf-profile.children.cycles-pp.alloc_pages_mpol
0.14 -0.0 0.13 perf-profile.children.cycles-pp.current_time
0.10 -0.0 0.09 perf-profile.children.cycles-pp.__es_insert_extent
0.25 ± 3% +0.0 0.27 ± 3% perf-profile.children.cycles-pp.__mod_lruvec_state
0.19 ± 3% +0.0 0.21 ± 3% perf-profile.children.cycles-pp.__mod_node_page_state
1.12 +0.1 1.20 perf-profile.children.cycles-pp.__mod_lruvec_page_state
0.99 +0.1 1.09 ± 2% perf-profile.children.cycles-pp.__mod_memcg_lruvec_state
0.00 +0.1 0.13 ± 3% perf-profile.children.cycles-pp.mutex_spin_on_owner
30.58 +0.1 30.72 perf-profile.children.cycles-pp.dput
0.64 +0.1 0.79 ± 4% perf-profile.children.cycles-pp.cgroup_rstat_updated
30.44 +0.2 30.60 perf-profile.children.cycles-pp.truncate_inode_pages_range
0.00 +0.2 0.18 ± 3% perf-profile.children.cycles-pp.__mutex_lock
97.33 +0.2 97.51 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
97.11 +0.2 97.31 perf-profile.children.cycles-pp.do_syscall_64
28.25 +0.2 28.47 perf-profile.children.cycles-pp.__folio_batch_release
25.74 +0.2 25.96 perf-profile.children.cycles-pp.release_pages
33.71 +0.3 33.99 perf-profile.children.cycles-pp.ext4_buffered_write_iter
23.82 +0.3 24.12 perf-profile.children.cycles-pp.folio_mark_accessed
32.74 +0.3 33.09 perf-profile.children.cycles-pp.generic_perform_write
22.94 +0.4 23.36 perf-profile.children.cycles-pp.folio_activate
27.94 +0.6 28.53 perf-profile.children.cycles-pp.ext4_da_write_begin
25.04 +0.8 25.80 perf-profile.children.cycles-pp.__filemap_get_folio
23.73 +0.8 24.54 perf-profile.children.cycles-pp.filemap_add_folio
22.61 +0.8 23.44 perf-profile.children.cycles-pp.folio_add_lru
48.23 +1.2 49.47 perf-profile.children.cycles-pp.folio_batch_move_lru
71.67 +1.5 73.13 perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
71.80 +1.5 73.29 perf-profile.children.cycles-pp._raw_spin_lock_irqsave
71.64 +1.5 73.14 perf-profile.children.cycles-pp.folio_lruvec_lock_irqsave
0.40 ± 2% -0.2 0.23 ± 2% perf-profile.self.cycles-pp.mem_cgroup_css_rstat_flush
0.52 ± 2% -0.1 0.42 ± 2% perf-profile.self.cycles-pp.workingset_age_nonresident
1.65 -0.1 1.56 perf-profile.self.cycles-pp._copy_to_iter
0.86 -0.1 0.81 perf-profile.self.cycles-pp.copy_page_from_iter_atomic
0.94 -0.1 0.89 perf-profile.self.cycles-pp.memset_orig
0.76 -0.0 0.71 ± 2% perf-profile.self.cycles-pp.entry_SYSRETQ_unsafe_stack
0.52 ± 4% -0.0 0.47 perf-profile.self.cycles-pp.__mod_memcg_lruvec_state
0.40 -0.0 0.36 ± 3% perf-profile.self.cycles-pp.__fget_light
0.53 ± 2% -0.0 0.50 perf-profile.self.cycles-pp.vfs_write
0.63 -0.0 0.59 perf-profile.self.cycles-pp.filemap_read
0.66 -0.0 0.62 perf-profile.self.cycles-pp.__block_commit_write
0.37 -0.0 0.34 ± 2% perf-profile.self.cycles-pp.fault_in_readable
0.43 -0.0 0.41 perf-profile.self.cycles-pp.vfs_read
0.26 ± 4% -0.0 0.24 ± 2% perf-profile.self.cycles-pp.balance_dirty_pages_ratelimited_flags
0.28 -0.0 0.26 ± 2% perf-profile.self.cycles-pp.xas_descend
0.28 -0.0 0.26 perf-profile.self.cycles-pp.read
0.28 -0.0 0.25 perf-profile.self.cycles-pp.__filemap_get_folio
0.17 -0.0 0.15 ± 2% perf-profile.self.cycles-pp.syscall_enter_from_user_mode
0.27 -0.0 0.25 perf-profile.self.cycles-pp.do_syscall_64
0.46 -0.0 0.44 perf-profile.self.cycles-pp.filemap_get_read_batch
0.22 ± 2% -0.0 0.20 ± 4% perf-profile.self.cycles-pp.ext4_da_write_begin
0.26 -0.0 0.25 ± 2% perf-profile.self.cycles-pp.__entry_text_start
0.24 -0.0 0.22 perf-profile.self.cycles-pp.syscall_return_via_sysret
0.21 ± 2% -0.0 0.19 ± 2% perf-profile.self.cycles-pp.filemap_get_entry
0.13 -0.0 0.12 ± 3% perf-profile.self.cycles-pp.down_write
0.22 ± 2% -0.0 0.21 ± 2% perf-profile.self.cycles-pp.ext4_da_do_write_end
0.20 ± 2% -0.0 0.19 ± 2% perf-profile.self.cycles-pp.__cond_resched
0.17 -0.0 0.16 perf-profile.self.cycles-pp.folio_mark_accessed
0.10 -0.0 0.09 perf-profile.self.cycles-pp.ksys_write
0.09 -0.0 0.08 perf-profile.self.cycles-pp.entry_SYSCALL_64_safe_stack
0.12 -0.0 0.11 perf-profile.self.cycles-pp.find_lock_entries
0.18 ± 2% +0.0 0.20 ± 2% perf-profile.self.cycles-pp.__mod_node_page_state
0.16 +0.0 0.19 ± 3% perf-profile.self.cycles-pp._raw_spin_lock_irqsave
0.00 +0.1 0.13 ± 3% perf-profile.self.cycles-pp.mutex_spin_on_owner
0.54 ± 2% +0.2 0.72 ± 4% perf-profile.self.cycles-pp.cgroup_rstat_updated
71.67 +1.5 73.13 perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
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
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