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Message-ID: <202311211612.33647109-oliver.sang@intel.com>
Date: Tue, 21 Nov 2023 16:38:34 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Yosry Ahmed <yosryahmed@...gle.com>
CC: <oe-lkp@...ts.linux.dev>, <lkp@...el.com>,
<linux-kernel@...r.kernel.org>,
Andrew Morton <akpm@...ux-foundation.org>,
Johannes Weiner <hannes@...xchg.org>,
Michal Hocko <mhocko@...nel.org>,
Michal Koutný <mkoutny@...e.com>,
Muchun Song <muchun.song@...ux.dev>,
Roman Gushchin <roman.gushchin@...ux.dev>,
"Shakeel Butt" <shakeelb@...gle.com>, <cgroups@...r.kernel.org>,
<linux-mm@...ck.org>, <ying.huang@...el.com>,
<feng.tang@...el.com>, <fengwei.yin@...el.com>,
<oliver.sang@...el.com>
Subject: [linus:master] [mm] 7bd5bc3ce9: aim7.jobs-per-min 4.4% improvement
Hello,
kernel test robot noticed a 4.4% improvement of aim7.jobs-per-min on:
commit: 7bd5bc3ce9632aefd0eed33a19212a2e55c0f873 ("mm: memcg: normalize the value passed into memcg_rstat_updated()")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
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
In addition to that, the commit also has significant impact on the following tests:
+------------------+--------------------------------------------------------------------------------------------+
| testcase: change | aim7: aim7.jobs-per-min 2.2% improvement |
| test machine | 128 threads 2 sockets Intel(R) Xeon(R) Gold 6338 CPU @ 2.00GHz (Ice Lake) with 256G memory |
| test parameters | cpufreq_governor=performance |
| | disk=1BRD_48G |
| | fs=ext4 |
| | load=3000 |
| | test=disk_cp |
+------------------+--------------------------------------------------------------------------------------------+
Details are as below:
-------------------------------------------------------------------------------------------------->
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20231121/202311211612.33647109-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:
ff841a06c8 ("mm: memcg: refactor page state unit helpers")
7bd5bc3ce9 ("mm: memcg: normalize the value passed into memcg_rstat_updated()")
ff841a06c844b055 7bd5bc3ce9632aefd0eed33a192
---------------- ---------------------------
%stddev %change %stddev
\ | \
838.50 ± 27% -47.7% 438.67 ± 50% perf-sched.wait_and_delay.count.__cond_resched.__wait_for_common.affine_move_task.__set_cpus_allowed_ptr.__sched_setaffinity
21.24 ± 22% +36.9% 29.06 ± 20% sched_debug.cfs_rq:/.util_est_enqueued.avg
620370 +4.4% 647378 aim7.jobs-per-min
153681 ± 6% -8.1% 141236 ± 4% aim7.time.involuntary_context_switches
2286 -6.8% 2132 aim7.time.system_time
2.79 -4.6% 2.66 perf-stat.overall.cpi
0.01 ± 19% -0.0 0.01 ± 13% perf-stat.overall.dTLB-load-miss-rate%
0.36 +4.9% 0.38 perf-stat.overall.ipc
21.96 -0.8 21.14 perf-profile.calltrace.cycles-pp.folio_batch_move_lru.folio_add_lru.filemap_add_folio.__filemap_get_folio.ext4_da_write_begin
22.01 -0.8 21.19 perf-profile.calltrace.cycles-pp.folio_add_lru.filemap_add_folio.__filemap_get_folio.ext4_da_write_begin.generic_perform_write
21.40 -0.8 20.58 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
21.42 -0.8 20.61 perf-profile.calltrace.cycles-pp.folio_lruvec_lock_irqsave.folio_batch_move_lru.folio_add_lru.filemap_add_folio.__filemap_get_folio
21.41 -0.8 20.60 perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.folio_lruvec_lock_irqsave.folio_batch_move_lru.folio_add_lru.filemap_add_folio
23.15 -0.8 22.37 perf-profile.calltrace.cycles-pp.filemap_add_folio.__filemap_get_folio.ext4_da_write_begin.generic_perform_write.ext4_buffered_write_iter
24.45 -0.7 23.76 perf-profile.calltrace.cycles-pp.__filemap_get_folio.ext4_da_write_begin.generic_perform_write.ext4_buffered_write_iter.vfs_write
24.40 -0.7 23.75 perf-profile.calltrace.cycles-pp.folio_lruvec_lock_irqsave.release_pages.__folio_batch_release.truncate_inode_pages_range.ext4_evict_inode
24.38 -0.7 23.72 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.folio_lruvec_lock_irqsave.release_pages.__folio_batch_release
24.40 -0.7 23.74 perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.folio_lruvec_lock_irqsave.release_pages.__folio_batch_release.truncate_inode_pages_range
27.97 -0.6 27.32 perf-profile.calltrace.cycles-pp.__folio_batch_release.truncate_inode_pages_range.ext4_evict_inode.evict.__dentry_kill
25.20 -0.6 24.56 perf-profile.calltrace.cycles-pp.release_pages.__folio_batch_release.truncate_inode_pages_range.ext4_evict_inode.evict
30.21 -0.5 29.69 perf-profile.calltrace.cycles-pp.truncate_inode_pages_range.ext4_evict_inode.evict.__dentry_kill.dentry_kill
30.32 -0.5 29.81 perf-profile.calltrace.cycles-pp.evict.__dentry_kill.dentry_kill.dput.__fput
30.31 -0.5 29.80 perf-profile.calltrace.cycles-pp.ext4_evict_inode.evict.__dentry_kill.dentry_kill.dput
30.36 -0.5 29.85 perf-profile.calltrace.cycles-pp.__fput.__x64_sys_close.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
30.34 -0.5 29.83 perf-profile.calltrace.cycles-pp.dentry_kill.dput.__fput.__x64_sys_close.do_syscall_64
30.38 -0.5 29.87 perf-profile.calltrace.cycles-pp.__close
30.35 -0.5 29.84 perf-profile.calltrace.cycles-pp.dput.__fput.__x64_sys_close.do_syscall_64.entry_SYSCALL_64_after_hwframe
30.37 -0.5 29.87 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__close
30.37 -0.5 29.87 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
30.36 -0.5 29.86 perf-profile.calltrace.cycles-pp.__x64_sys_close.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
30.33 -0.5 29.83 perf-profile.calltrace.cycles-pp.__dentry_kill.dentry_kill.dput.__fput.__x64_sys_close
27.52 -0.5 27.03 perf-profile.calltrace.cycles-pp.ext4_da_write_begin.generic_perform_write.ext4_buffered_write_iter.vfs_write.ksys_write
32.56 -0.5 32.09 perf-profile.calltrace.cycles-pp.generic_perform_write.ext4_buffered_write_iter.vfs_write.ksys_write.do_syscall_64
33.62 -0.4 33.22 perf-profile.calltrace.cycles-pp.ext4_buffered_write_iter.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe
34.80 -0.3 34.52 perf-profile.calltrace.cycles-pp.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
0.76 -0.2 0.54 perf-profile.calltrace.cycles-pp.do_flush_stats.mem_cgroup_wb_stats.balance_dirty_pages.balance_dirty_pages_ratelimited_flags.generic_perform_write
0.76 -0.2 0.54 perf-profile.calltrace.cycles-pp.cgroup_rstat_flush.do_flush_stats.mem_cgroup_wb_stats.balance_dirty_pages.balance_dirty_pages_ratelimited_flags
0.78 -0.2 0.56 perf-profile.calltrace.cycles-pp.mem_cgroup_wb_stats.balance_dirty_pages.balance_dirty_pages_ratelimited_flags.generic_perform_write.ext4_buffered_write_iter
0.80 -0.2 0.59 perf-profile.calltrace.cycles-pp.balance_dirty_pages.balance_dirty_pages_ratelimited_flags.generic_perform_write.ext4_buffered_write_iter.vfs_write
0.75 -0.2 0.54 perf-profile.calltrace.cycles-pp.cgroup_rstat_flush_locked.cgroup_rstat_flush.do_flush_stats.mem_cgroup_wb_stats.balance_dirty_pages
1.16 -0.2 0.98 perf-profile.calltrace.cycles-pp.balance_dirty_pages_ratelimited_flags.generic_perform_write.ext4_buffered_write_iter.vfs_write.ksys_write
0.56 ± 2% +0.0 0.58 perf-profile.calltrace.cycles-pp.workingset_age_nonresident.workingset_activation.folio_mark_accessed.filemap_read.vfs_read
0.74 ± 2% +0.0 0.77 perf-profile.calltrace.cycles-pp.workingset_activation.folio_mark_accessed.filemap_read.vfs_read.ksys_read
1.10 +0.0 1.14 perf-profile.calltrace.cycles-pp.__filemap_add_folio.filemap_add_folio.__filemap_get_folio.ext4_da_write_begin.generic_perform_write
0.64 +0.0 0.68 perf-profile.calltrace.cycles-pp.copyin.copy_page_from_iter_atomic.generic_perform_write.ext4_buffered_write_iter.vfs_write
0.54 +0.0 0.58 perf-profile.calltrace.cycles-pp.folio_alloc.__filemap_get_folio.ext4_da_write_begin.generic_perform_write.ext4_buffered_write_iter
0.98 +0.0 1.03 perf-profile.calltrace.cycles-pp.zero_user_segments.ext4_block_write_begin.ext4_da_write_begin.generic_perform_write.ext4_buffered_write_iter
0.58 +0.0 0.63 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.llseek
0.95 +0.1 1.00 perf-profile.calltrace.cycles-pp.memset_orig.zero_user_segments.ext4_block_write_begin.ext4_da_write_begin.generic_perform_write
0.84 +0.1 0.89 perf-profile.calltrace.cycles-pp.copy_page_from_iter_atomic.generic_perform_write.ext4_buffered_write_iter.vfs_write.ksys_write
0.75 +0.1 0.81 perf-profile.calltrace.cycles-pp.filemap_get_read_batch.filemap_get_pages.filemap_read.vfs_read.ksys_read
0.71 +0.1 0.77 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.llseek
0.90 +0.1 0.97 perf-profile.calltrace.cycles-pp.filemap_get_pages.filemap_read.vfs_read.ksys_read.do_syscall_64
0.91 +0.1 0.98 ± 2% 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
0.93 +0.1 1.00 ± 2% 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
2.17 +0.1 2.25 perf-profile.calltrace.cycles-pp.ext4_da_do_write_end.generic_perform_write.ext4_buffered_write_iter.vfs_write.ksys_write
1.63 +0.1 1.72 perf-profile.calltrace.cycles-pp.truncate_cleanup_folio.truncate_inode_pages_range.ext4_evict_inode.evict.__dentry_kill
1.58 +0.1 1.69 perf-profile.calltrace.cycles-pp.copyout._copy_to_iter.copy_page_to_iter.filemap_read.vfs_read
1.42 +0.1 1.53 perf-profile.calltrace.cycles-pp.llseek
1.71 +0.1 1.83 perf-profile.calltrace.cycles-pp._copy_to_iter.copy_page_to_iter.filemap_read.vfs_read.ksys_read
1.81 +0.1 1.93 perf-profile.calltrace.cycles-pp.copy_page_to_iter.filemap_read.vfs_read.ksys_read.do_syscall_64
2.74 +0.2 2.90 perf-profile.calltrace.cycles-pp.ext4_block_write_begin.ext4_da_write_begin.generic_perform_write.ext4_buffered_write_iter.vfs_write
29.25 +0.3 29.56 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.read
29.38 +0.3 29.71 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.read
30.13 +0.4 30.51 perf-profile.calltrace.cycles-pp.read
70.96 -1.7 69.29 perf-profile.children.cycles-pp._raw_spin_lock_irqsave
70.80 -1.7 69.14 perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
70.75 -1.6 69.12 perf-profile.children.cycles-pp.folio_lruvec_lock_irqsave
47.66 -1.0 46.66 perf-profile.children.cycles-pp.folio_batch_move_lru
22.05 -0.8 21.23 perf-profile.children.cycles-pp.folio_add_lru
23.15 -0.8 22.38 perf-profile.children.cycles-pp.filemap_add_folio
24.49 -0.7 23.80 perf-profile.children.cycles-pp.__filemap_get_folio
27.97 -0.6 27.32 perf-profile.children.cycles-pp.__folio_batch_release
25.44 -0.6 24.83 perf-profile.children.cycles-pp.release_pages
30.21 -0.5 29.70 perf-profile.children.cycles-pp.truncate_inode_pages_range
30.32 -0.5 29.81 perf-profile.children.cycles-pp.evict
30.34 -0.5 29.83 perf-profile.children.cycles-pp.__dentry_kill
30.31 -0.5 29.80 perf-profile.children.cycles-pp.ext4_evict_inode
30.35 -0.5 29.84 perf-profile.children.cycles-pp.dput
30.36 -0.5 29.85 perf-profile.children.cycles-pp.__fput
30.34 -0.5 29.83 perf-profile.children.cycles-pp.dentry_kill
30.36 -0.5 29.86 perf-profile.children.cycles-pp.__x64_sys_close
30.38 -0.5 29.87 perf-profile.children.cycles-pp.__close
27.56 -0.5 27.07 perf-profile.children.cycles-pp.ext4_da_write_begin
32.68 -0.5 32.20 perf-profile.children.cycles-pp.generic_perform_write
33.67 -0.4 33.28 perf-profile.children.cycles-pp.ext4_buffered_write_iter
34.90 -0.3 34.61 perf-profile.children.cycles-pp.vfs_write
0.95 ± 4% -0.2 0.72 ± 4% perf-profile.children.cycles-pp.cgroup_rstat_updated
0.76 -0.2 0.54 perf-profile.children.cycles-pp.do_flush_stats
97.02 -0.2 96.80 perf-profile.children.cycles-pp.do_syscall_64
0.76 -0.2 0.54 perf-profile.children.cycles-pp.cgroup_rstat_flush
0.78 -0.2 0.56 perf-profile.children.cycles-pp.mem_cgroup_wb_stats
0.75 -0.2 0.54 perf-profile.children.cycles-pp.cgroup_rstat_flush_locked
0.80 -0.2 0.59 perf-profile.children.cycles-pp.balance_dirty_pages
97.31 -0.2 97.12 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
1.19 -0.2 1.02 perf-profile.children.cycles-pp.balance_dirty_pages_ratelimited_flags
0.56 -0.2 0.40 perf-profile.children.cycles-pp.mem_cgroup_css_rstat_flush
1.00 ± 2% -0.1 0.87 ± 2% perf-profile.children.cycles-pp.__mod_memcg_lruvec_state
1.20 -0.1 1.14 ± 2% perf-profile.children.cycles-pp.__mod_lruvec_page_state
0.29 ± 3% -0.0 0.24 ± 3% perf-profile.children.cycles-pp.__count_memcg_events
0.33 ± 3% -0.0 0.30 perf-profile.children.cycles-pp.charge_memcg
0.40 -0.0 0.37 perf-profile.children.cycles-pp.__mem_cgroup_charge
0.08 ± 9% -0.0 0.05 ± 8% perf-profile.children.cycles-pp.cgroup_base_stat_flush
0.14 +0.0 0.15 perf-profile.children.cycles-pp.filemap_unaccount_folio
0.05 +0.0 0.06 perf-profile.children.cycles-pp.generic_file_read_iter
0.12 +0.0 0.13 perf-profile.children.cycles-pp.syscall_exit_to_user_mode_prepare
0.08 +0.0 0.09 perf-profile.children.cycles-pp.timestamp_truncate
0.06 +0.0 0.07 perf-profile.children.cycles-pp.try_charge_memcg
0.14 ± 2% +0.0 0.15 perf-profile.children.cycles-pp.up_write
0.11 +0.0 0.12 ± 3% perf-profile.children.cycles-pp.node_dirty_ok
0.10 ± 5% +0.0 0.11 perf-profile.children.cycles-pp.ext4_dirty_inode
0.21 ± 2% +0.0 0.23 ± 3% perf-profile.children.cycles-pp.ext4_generic_write_checks
0.19 +0.0 0.21 ± 2% perf-profile.children.cycles-pp.syscall_enter_from_user_mode
0.16 ± 2% +0.0 0.18 ± 2% perf-profile.children.cycles-pp.xas_start
0.19 ± 2% +0.0 0.21 ± 2% perf-profile.children.cycles-pp.__mod_node_page_state
0.12 ± 4% +0.0 0.14 ± 2% perf-profile.children.cycles-pp.tlb_finish_mmu
0.12 ± 4% +0.0 0.14 ± 2% perf-profile.children.cycles-pp.tlb_batch_pages_flush
0.26 +0.0 0.27 ± 2% perf-profile.children.cycles-pp.__mod_lruvec_state
0.25 +0.0 0.27 perf-profile.children.cycles-pp.inode_needs_update_time
0.23 ± 2% +0.0 0.25 ± 2% perf-profile.children.cycles-pp.__list_del_entry_valid_or_report
0.16 ± 4% +0.0 0.18 ± 2% perf-profile.children.cycles-pp.__mark_inode_dirty
0.24 +0.0 0.26 ± 2% perf-profile.children.cycles-pp.ext4_da_reserve_space
0.56 ± 2% +0.0 0.58 perf-profile.children.cycles-pp.workingset_age_nonresident
0.12 ± 6% +0.0 0.14 ± 3% perf-profile.children.cycles-pp.generic_update_time
0.44 +0.0 0.46 perf-profile.children.cycles-pp.filemap_get_entry
0.15 ± 3% +0.0 0.18 ± 2% perf-profile.children.cycles-pp.__mmput
0.15 ± 3% +0.0 0.18 ± 2% perf-profile.children.cycles-pp.exit_mmap
0.30 +0.0 0.32 ± 2% perf-profile.children.cycles-pp.disk_rr
0.15 ± 3% +0.0 0.17 ± 2% perf-profile.children.cycles-pp.exit_mm
0.38 ± 2% +0.0 0.40 ± 2% perf-profile.children.cycles-pp.get_page_from_freelist
0.38 +0.0 0.41 ± 2% perf-profile.children.cycles-pp.fault_in_readable
0.16 ± 3% +0.0 0.18 ± 3% perf-profile.children.cycles-pp.__x64_sys_exit_group
0.16 ± 3% +0.0 0.18 ± 3% perf-profile.children.cycles-pp.do_group_exit
0.16 ± 3% +0.0 0.18 ± 3% perf-profile.children.cycles-pp.do_exit
0.35 +0.0 0.38 ± 2% perf-profile.children.cycles-pp.atime_needs_update
0.35 +0.0 0.38 ± 2% perf-profile.children.cycles-pp.__cond_resched
0.44 +0.0 0.46 perf-profile.children.cycles-pp.fault_in_iov_iter_readable
0.40 +0.0 0.42 perf-profile.children.cycles-pp.delete_from_page_cache_batch
0.41 ± 2% +0.0 0.44 perf-profile.children.cycles-pp.syscall_exit_to_user_mode
0.28 +0.0 0.32 perf-profile.children.cycles-pp.xas_store
0.37 ± 2% +0.0 0.40 ± 2% perf-profile.children.cycles-pp.ksys_lseek
0.46 +0.0 0.50 perf-profile.children.cycles-pp.__alloc_pages
0.42 +0.0 0.45 ± 2% perf-profile.children.cycles-pp.touch_atime
0.20 ± 3% +0.0 0.24 ± 5% perf-profile.children.cycles-pp.ext4_file_read_iter
0.54 +0.0 0.58 perf-profile.children.cycles-pp.folio_alloc
0.20 ± 2% +0.0 0.23 ± 5% perf-profile.children.cycles-pp.ext4_file_write_iter
1.12 +0.0 1.16 perf-profile.children.cycles-pp.__filemap_add_folio
0.69 +0.0 0.73 perf-profile.children.cycles-pp.copyin
0.42 ± 3% +0.0 0.46 ± 2% perf-profile.children.cycles-pp.__fget_light
0.40 ± 2% +0.0 0.44 perf-profile.children.cycles-pp.apparmor_file_permission
0.46 +0.0 0.50 perf-profile.children.cycles-pp.file_modified
0.62 +0.0 0.66 perf-profile.children.cycles-pp.xas_load
0.32 ± 2% +0.0 0.36 ± 4% perf-profile.children.cycles-pp.percpu_counter_add_batch
0.52 +0.0 0.56 perf-profile.children.cycles-pp.security_file_permission
0.98 +0.0 1.03 perf-profile.children.cycles-pp.memset_orig
0.98 +0.0 1.03 perf-profile.children.cycles-pp.zero_user_segments
0.90 +0.1 0.95 perf-profile.children.cycles-pp.copy_page_from_iter_atomic
0.59 ± 2% +0.1 0.64 ± 2% perf-profile.children.cycles-pp.__fdget_pos
0.80 +0.1 0.85 perf-profile.children.cycles-pp.entry_SYSRETQ_unsafe_stack
0.77 +0.1 0.83 perf-profile.children.cycles-pp.filemap_get_read_batch
0.92 +0.1 0.99 ± 2% perf-profile.children.cycles-pp.ext4_da_map_blocks
0.91 +0.1 0.98 perf-profile.children.cycles-pp.filemap_get_pages
0.94 +0.1 1.01 ± 2% perf-profile.children.cycles-pp.ext4_da_get_block_prep
1.01 +0.1 1.08 perf-profile.children.cycles-pp.__entry_text_start
1.64 +0.1 1.72 perf-profile.children.cycles-pp.truncate_cleanup_folio
1.63 +0.1 1.74 perf-profile.children.cycles-pp.copyout
1.73 +0.1 1.84 perf-profile.children.cycles-pp._copy_to_iter
1.82 +0.1 1.95 perf-profile.children.cycles-pp.copy_page_to_iter
1.68 +0.1 1.81 perf-profile.children.cycles-pp.llseek
2.75 +0.2 2.92 perf-profile.children.cycles-pp.ext4_block_write_begin
30.38 +0.4 30.79 perf-profile.children.cycles-pp.read
70.80 -1.7 69.14 perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
0.81 ± 5% -0.2 0.61 ± 5% perf-profile.self.cycles-pp.cgroup_rstat_updated
0.54 -0.2 0.39 perf-profile.self.cycles-pp.mem_cgroup_css_rstat_flush
0.08 ± 4% -0.0 0.05 ± 8% perf-profile.self.cycles-pp.cgroup_rstat_flush_locked
0.08 ± 9% -0.0 0.05 ± 8% perf-profile.self.cycles-pp.cgroup_base_stat_flush
0.19 ± 2% -0.0 0.17 ± 2% perf-profile.self.cycles-pp._raw_spin_lock_irqsave
0.19 ± 2% +0.0 0.20 ± 2% perf-profile.self.cycles-pp.ext4_block_write_begin
0.18 +0.0 0.19 perf-profile.self.cycles-pp.__mod_node_page_state
0.20 +0.0 0.21 perf-profile.self.cycles-pp.block_invalidate_folio
0.23 +0.0 0.24 perf-profile.self.cycles-pp.ext4_da_do_write_end
0.17 +0.0 0.18 ± 2% perf-profile.self.cycles-pp.__fdget_pos
0.26 +0.0 0.27 perf-profile.self.cycles-pp.generic_perform_write
0.21 ± 2% +0.0 0.23 perf-profile.self.cycles-pp.xas_load
0.21 +0.0 0.22 ± 2% perf-profile.self.cycles-pp.__cond_resched
0.15 ± 3% +0.0 0.17 ± 2% perf-profile.self.cycles-pp.xas_store
0.28 +0.0 0.30 perf-profile.self.cycles-pp.__filemap_get_folio
0.17 ± 2% +0.0 0.18 ± 2% perf-profile.self.cycles-pp.folio_mark_accessed
0.37 +0.0 0.39 perf-profile.self.cycles-pp.fault_in_readable
0.24 +0.0 0.26 ± 2% perf-profile.self.cycles-pp.syscall_return_via_sysret
0.29 +0.0 0.31 ± 2% perf-profile.self.cycles-pp.read
0.21 +0.0 0.23 ± 2% perf-profile.self.cycles-pp.do_syscall_64
0.56 ± 2% +0.0 0.58 perf-profile.self.cycles-pp.workingset_age_nonresident
0.27 +0.0 0.29 perf-profile.self.cycles-pp.llseek
0.27 +0.0 0.29 perf-profile.self.cycles-pp.__entry_text_start
0.22 ± 2% +0.0 0.25 ± 3% perf-profile.self.cycles-pp.ext4_da_write_begin
0.31 +0.0 0.33 perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe
0.28 ± 2% +0.0 0.31 perf-profile.self.cycles-pp.apparmor_file_permission
0.46 +0.0 0.49 perf-profile.self.cycles-pp.vfs_read
0.27 ± 3% +0.0 0.30 ± 3% perf-profile.self.cycles-pp.balance_dirty_pages_ratelimited_flags
0.40 ± 3% +0.0 0.43 ± 3% perf-profile.self.cycles-pp.__fget_light
0.19 ± 3% +0.0 0.23 ± 4% perf-profile.self.cycles-pp.ext4_file_read_iter
0.19 ± 2% +0.0 0.22 ± 5% perf-profile.self.cycles-pp.ext4_file_write_iter
0.67 +0.0 0.72 perf-profile.self.cycles-pp.__block_commit_write
0.55 +0.0 0.59 perf-profile.self.cycles-pp.vfs_write
0.28 ± 2% +0.0 0.32 ± 4% perf-profile.self.cycles-pp.percpu_counter_add_batch
0.68 +0.0 0.72 perf-profile.self.cycles-pp.copyin
0.50 +0.0 0.54 perf-profile.self.cycles-pp.filemap_get_read_batch
0.98 +0.0 1.02 perf-profile.self.cycles-pp.memset_orig
0.78 +0.0 0.82 perf-profile.self.cycles-pp.entry_SYSRETQ_unsafe_stack
0.64 +0.0 0.68 perf-profile.self.cycles-pp.filemap_read
0.29 ± 5% +0.0 0.34 ± 4% perf-profile.self.cycles-pp.__mod_memcg_lruvec_state
0.00 +0.1 0.05 perf-profile.self.cycles-pp.try_charge_memcg
1.61 +0.1 1.72 perf-profile.self.cycles-pp.copyout
***************************************************************************************************
lkp-icl-2sp2: 128 threads 2 sockets Intel(R) Xeon(R) Gold 6338 CPU @ 2.00GHz (Ice Lake) with 256G memory
=========================================================================================
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_cp/aim7
commit:
ff841a06c8 ("mm: memcg: refactor page state unit helpers")
7bd5bc3ce9 ("mm: memcg: normalize the value passed into memcg_rstat_updated()")
ff841a06c844b055 7bd5bc3ce9632aefd0eed33a192
---------------- ---------------------------
%stddev %change %stddev
\ | \
1.19 ± 5% +9.1% 1.30 ± 3% iostat.cpu.user
1.25 ± 5% +0.1 1.38 ± 4% mpstat.cpu.all.usr%
11.57 ± 62% -65.1% 4.04 ± 65% perf-sched.wait_and_delay.avg.ms.__cond_resched.smpboot_thread_fn.kthread.ret_from_fork.ret_from_fork_asm
39.78 ± 4% +12.9 52.64 ± 9% turbostat.PKG_%
895233 +2.2% 915336 aim7.jobs-per-min
48750 ± 7% -21.3% 38348 ± 9% aim7.time.involuntary_context_switches
1176 -5.7% 1109 aim7.time.system_time
8891 ± 32% -78.2% 1936 ± 16% sched_debug.cfs_rq:/.load.avg
886484 ± 42% -96.6% 30376 ± 20% sched_debug.cfs_rq:/.load.max
78636 ± 40% -92.5% 5891 ± 12% sched_debug.cfs_rq:/.load.stddev
2.18 ± 2% -4.5% 2.09 perf-stat.i.cpi
0.54 ± 4% +8.8% 0.59 perf-stat.i.ipc
1.90 -4.3% 1.82 ± 2% perf-stat.overall.MPKI
1.75 -5.1% 1.66 perf-stat.overall.cpi
0.57 +5.4% 0.60 perf-stat.overall.ipc
62989 ± 18% -38.7% 38627 ± 33% numa-vmstat.node0.nr_anon_pages
63952 ± 18% -38.0% 39673 ± 32% numa-vmstat.node0.nr_inactive_anon
63952 ± 18% -38.0% 39673 ± 32% numa-vmstat.node0.nr_zone_inactive_anon
64470 ± 18% +39.2% 89730 ± 14% numa-vmstat.node1.nr_anon_pages
66787 ± 17% +36.8% 91333 ± 14% numa-vmstat.node1.nr_inactive_anon
11264 ± 5% +216.1% 35608 ± 48% numa-vmstat.node1.nr_kernel_stack
834.42 ± 17% +2010.2% 17608 ± 67% numa-vmstat.node1.nr_page_table_pages
66787 ± 17% +36.8% 91333 ± 14% numa-vmstat.node1.nr_zone_inactive_anon
251945 ± 18% -38.7% 154531 ± 33% numa-meminfo.node0.AnonPages
305057 ± 15% -28.9% 216862 ± 22% numa-meminfo.node0.AnonPages.max
14698 ± 9% -13.9% 12660 ± 7% numa-meminfo.node0.Dirty
271685 ± 17% -36.2% 173249 ± 29% numa-meminfo.node0.Inactive
255806 ± 18% -38.0% 158709 ± 32% numa-meminfo.node0.Inactive(anon)
291694 ± 10% -25.8% 216523 ± 19% numa-meminfo.node0.Slab
257857 ± 18% +39.2% 358935 ± 14% numa-meminfo.node1.AnonPages
282059 ± 16% +34.8% 380109 ± 13% numa-meminfo.node1.Inactive
267122 ± 17% +36.8% 365352 ± 14% numa-meminfo.node1.Inactive(anon)
11264 ± 5% +216.2% 35619 ± 48% numa-meminfo.node1.KernelStack
3337 ± 17% +2011.4% 70463 ± 67% numa-meminfo.node1.PageTables
24.42 -2.3 22.14 ± 2% perf-profile.calltrace.cycles-pp.__folio_batch_release.truncate_inode_pages_range.ext4_evict_inode.evict.__dentry_kill
21.77 -2.2 19.59 ± 2% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.folio_lruvec_lock_irqsave.release_pages.__folio_batch_release
21.80 -2.2 19.62 ± 2% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.folio_lruvec_lock_irqsave.release_pages.__folio_batch_release.truncate_inode_pages_range
21.81 -2.2 19.64 ± 2% perf-profile.calltrace.cycles-pp.folio_lruvec_lock_irqsave.release_pages.__folio_batch_release.truncate_inode_pages_range.ext4_evict_inode
23.12 -2.2 20.96 perf-profile.calltrace.cycles-pp.release_pages.__folio_batch_release.truncate_inode_pages_range.ext4_evict_inode.evict
28.82 -2.0 26.78 perf-profile.calltrace.cycles-pp.truncate_inode_pages_range.ext4_evict_inode.evict.__dentry_kill.dentry_kill
29.06 -2.0 27.04 perf-profile.calltrace.cycles-pp.evict.__dentry_kill.dentry_kill.dput.__fput
29.03 -2.0 27.01 perf-profile.calltrace.cycles-pp.ext4_evict_inode.evict.__dentry_kill.dentry_kill.dput
29.08 -2.0 27.06 perf-profile.calltrace.cycles-pp.__dentry_kill.dentry_kill.dput.__fput.__x64_sys_close
29.08 -2.0 27.06 perf-profile.calltrace.cycles-pp.dentry_kill.dput.__fput.__x64_sys_close.do_syscall_64
29.09 -2.0 27.07 perf-profile.calltrace.cycles-pp.dput.__fput.__x64_sys_close.do_syscall_64.entry_SYSCALL_64_after_hwframe
29.14 -2.0 27.12 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__close
29.14 -2.0 27.12 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
29.14 -2.0 27.12 perf-profile.calltrace.cycles-pp.__close
29.12 -2.0 27.11 perf-profile.calltrace.cycles-pp.__x64_sys_close.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
29.11 -2.0 27.09 perf-profile.calltrace.cycles-pp.__fput.__x64_sys_close.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
20.28 -1.3 18.93 perf-profile.calltrace.cycles-pp.folio_lruvec_lock_irqsave.folio_batch_move_lru.folio_add_lru.filemap_add_folio.__filemap_get_folio
23.94 -1.3 22.60 perf-profile.calltrace.cycles-pp.filemap_add_folio.__filemap_get_folio.ext4_da_write_begin.generic_perform_write.ext4_buffered_write_iter
20.23 -1.3 18.89 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
20.26 -1.3 18.92 perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.folio_lruvec_lock_irqsave.folio_batch_move_lru.folio_add_lru.filemap_add_folio
21.38 -1.3 20.05 perf-profile.calltrace.cycles-pp.folio_add_lru.filemap_add_folio.__filemap_get_folio.ext4_da_write_begin.generic_perform_write
21.29 -1.3 19.96 perf-profile.calltrace.cycles-pp.folio_batch_move_lru.folio_add_lru.filemap_add_folio.__filemap_get_folio.ext4_da_write_begin
26.64 -1.2 25.46 perf-profile.calltrace.cycles-pp.__filemap_get_folio.ext4_da_write_begin.generic_perform_write.ext4_buffered_write_iter.vfs_write
33.56 -0.7 32.84 perf-profile.calltrace.cycles-pp.ext4_da_write_begin.generic_perform_write.ext4_buffered_write_iter.vfs_write.ksys_write
0.80 -0.2 0.61 perf-profile.calltrace.cycles-pp.do_flush_stats.mem_cgroup_wb_stats.balance_dirty_pages.balance_dirty_pages_ratelimited_flags.generic_perform_write
0.79 -0.2 0.61 perf-profile.calltrace.cycles-pp.cgroup_rstat_flush.do_flush_stats.mem_cgroup_wb_stats.balance_dirty_pages.balance_dirty_pages_ratelimited_flags
0.83 -0.2 0.66 ± 2% perf-profile.calltrace.cycles-pp.mem_cgroup_wb_stats.balance_dirty_pages.balance_dirty_pages_ratelimited_flags.generic_perform_write.ext4_buffered_write_iter
0.78 -0.2 0.61 ± 2% perf-profile.calltrace.cycles-pp.cgroup_rstat_flush_locked.cgroup_rstat_flush.do_flush_stats.mem_cgroup_wb_stats.balance_dirty_pages
0.88 -0.2 0.71 ± 2% perf-profile.calltrace.cycles-pp.balance_dirty_pages.balance_dirty_pages_ratelimited_flags.generic_perform_write.ext4_buffered_write_iter.vfs_write
1.24 ± 2% -0.1 1.12 ± 2% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.folio_lruvec_lock_irqsave.folio_batch_move_lru.lru_add_drain_cpu
1.24 ± 2% -0.1 1.12 ± 2% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.folio_lruvec_lock_irqsave.folio_batch_move_lru.lru_add_drain_cpu.__folio_batch_release
1.24 ± 2% -0.1 1.12 ± 2% perf-profile.calltrace.cycles-pp.folio_lruvec_lock_irqsave.folio_batch_move_lru.lru_add_drain_cpu.__folio_batch_release.truncate_inode_pages_range
1.26 -0.1 1.15 ± 2% perf-profile.calltrace.cycles-pp.lru_add_drain_cpu.__folio_batch_release.truncate_inode_pages_range.ext4_evict_inode.evict
1.26 ± 2% -0.1 1.14 ± 2% perf-profile.calltrace.cycles-pp.folio_batch_move_lru.lru_add_drain_cpu.__folio_batch_release.truncate_inode_pages_range.ext4_evict_inode
1.88 -0.1 1.80 perf-profile.calltrace.cycles-pp.balance_dirty_pages_ratelimited_flags.generic_perform_write.ext4_buffered_write_iter.vfs_write.ksys_write
0.74 ± 3% -0.1 0.68 ± 2% perf-profile.calltrace.cycles-pp.charge_memcg.__mem_cgroup_charge.__filemap_add_folio.filemap_add_folio.__filemap_get_folio
0.92 -0.1 0.87 perf-profile.calltrace.cycles-pp.__mem_cgroup_charge.__filemap_add_folio.filemap_add_folio.__filemap_get_folio.ext4_da_write_begin
0.84 ± 2% -0.1 0.79 perf-profile.calltrace.cycles-pp.__mod_lruvec_page_state.folio_account_dirtied.__folio_mark_dirty.mark_buffer_dirty.__block_commit_write
0.72 ± 2% -0.0 0.68 perf-profile.calltrace.cycles-pp.__mod_lruvec_page_state.folio_account_cleaned.__folio_cancel_dirty.try_to_free_buffers.truncate_cleanup_folio
1.40 +0.0 1.44 perf-profile.calltrace.cycles-pp.folio_account_dirtied.__folio_mark_dirty.mark_buffer_dirty.__block_commit_write.block_write_end
0.52 ± 2% +0.0 0.55 perf-profile.calltrace.cycles-pp.security_file_permission.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.15 +0.0 1.19 perf-profile.calltrace.cycles-pp.folio_create_empty_buffers.ext4_block_write_begin.ext4_da_write_begin.generic_perform_write.ext4_buffered_write_iter
0.80 +0.0 0.85 perf-profile.calltrace.cycles-pp.delete_from_page_cache_batch.truncate_inode_pages_range.ext4_evict_inode.evict.__dentry_kill
0.86 +0.0 0.91 ± 2% perf-profile.calltrace.cycles-pp.get_page_from_freelist.__alloc_pages.folio_alloc.__filemap_get_folio.ext4_da_write_begin
0.83 +0.1 0.88 perf-profile.calltrace.cycles-pp.fault_in_iov_iter_readable.generic_perform_write.ext4_buffered_write_iter.vfs_write.ksys_write
0.80 +0.1 0.86 perf-profile.calltrace.cycles-pp.filemap_get_entry.__filemap_get_folio.ext4_da_write_begin.generic_perform_write.ext4_buffered_write_iter
1.73 +0.1 1.79 perf-profile.calltrace.cycles-pp.__folio_mark_dirty.mark_buffer_dirty.__block_commit_write.block_write_end.ext4_da_do_write_end
0.73 ± 3% +0.1 0.79 ± 2% perf-profile.calltrace.cycles-pp.atime_needs_update.touch_atime.filemap_read.vfs_read.ksys_read
1.04 +0.1 1.10 perf-profile.calltrace.cycles-pp.__alloc_pages.folio_alloc.__filemap_get_folio.ext4_da_write_begin.generic_perform_write
0.82 ± 3% +0.1 0.88 ± 2% perf-profile.calltrace.cycles-pp.touch_atime.filemap_read.vfs_read.ksys_read.do_syscall_64
0.78 ± 3% +0.1 0.84 ± 2% perf-profile.calltrace.cycles-pp.ext4_file_read_iter.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.21 +0.1 1.28 perf-profile.calltrace.cycles-pp.folio_alloc.__filemap_get_folio.ext4_da_write_begin.generic_perform_write.ext4_buffered_write_iter
1.40 +0.1 1.48 perf-profile.calltrace.cycles-pp.copyin.copy_page_from_iter_atomic.generic_perform_write.ext4_buffered_write_iter.vfs_write
2.25 +0.1 2.34 perf-profile.calltrace.cycles-pp.mark_buffer_dirty.__block_commit_write.block_write_end.ext4_da_do_write_end.generic_perform_write
2.21 +0.1 2.30 perf-profile.calltrace.cycles-pp.try_to_free_buffers.truncate_cleanup_folio.truncate_inode_pages_range.ext4_evict_inode.evict
1.74 ± 2% +0.1 1.84 perf-profile.calltrace.cycles-pp.copyout._copy_to_iter.copy_page_to_iter.filemap_read.vfs_read
1.13 ± 3% +0.1 1.24 ± 2% perf-profile.calltrace.cycles-pp.file_modified.ext4_buffered_write_iter.vfs_write.ksys_write.do_syscall_64
1.82 +0.1 1.93 perf-profile.calltrace.cycles-pp.copy_page_from_iter_atomic.generic_perform_write.ext4_buffered_write_iter.vfs_write.ksys_write
2.01 ± 2% +0.1 2.13 perf-profile.calltrace.cycles-pp._copy_to_iter.copy_page_to_iter.filemap_read.vfs_read.ksys_read
2.38 +0.1 2.52 perf-profile.calltrace.cycles-pp.memset_orig.zero_user_segments.ext4_block_write_begin.ext4_da_write_begin.generic_perform_write
2.44 +0.1 2.58 perf-profile.calltrace.cycles-pp.zero_user_segments.ext4_block_write_begin.ext4_da_write_begin.generic_perform_write.ext4_buffered_write_iter
2.22 ± 2% +0.1 2.36 perf-profile.calltrace.cycles-pp.copy_page_to_iter.filemap_read.vfs_read.ksys_read.do_syscall_64
1.98 ± 3% +0.1 2.13 ± 2% 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
2.03 ± 3% +0.2 2.18 ± 2% 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
3.12 +0.2 3.28 perf-profile.calltrace.cycles-pp.truncate_cleanup_folio.truncate_inode_pages_range.ext4_evict_inode.evict.__dentry_kill
3.92 +0.2 4.10 perf-profile.calltrace.cycles-pp.__block_commit_write.block_write_end.ext4_da_do_write_end.generic_perform_write.ext4_buffered_write_iter
4.12 +0.2 4.32 perf-profile.calltrace.cycles-pp.block_write_end.ext4_da_do_write_end.generic_perform_write.ext4_buffered_write_iter.vfs_write
0.34 ± 70% +0.2 0.55 ± 2% perf-profile.calltrace.cycles-pp.inode_needs_update_time.file_modified.ext4_buffered_write_iter.vfs_write.ksys_write
4.84 +0.2 5.08 perf-profile.calltrace.cycles-pp.ext4_da_do_write_end.generic_perform_write.ext4_buffered_write_iter.vfs_write.ksys_write
6.05 +0.4 6.40 perf-profile.calltrace.cycles-pp.ext4_block_write_begin.ext4_da_write_begin.generic_perform_write.ext4_buffered_write_iter.vfs_write
0.68 +0.4 1.09 ± 22% perf-profile.calltrace.cycles-pp.__entry_text_start.write
0.08 ±223% +0.4 0.53 ± 2% perf-profile.calltrace.cycles-pp.ext4_da_reserve_space.ext4_da_map_blocks.ext4_da_get_block_prep.ext4_block_write_begin.ext4_da_write_begin
0.68 +0.6 1.23 ± 2% perf-profile.calltrace.cycles-pp.__entry_text_start.read
8.05 ± 4% +0.8 8.84 ± 4% perf-profile.calltrace.cycles-pp.filemap_read.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe
10.85 ± 3% +1.0 11.87 ± 3% perf-profile.calltrace.cycles-pp.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe.read
11.49 ± 3% +1.1 12.55 ± 3% perf-profile.calltrace.cycles-pp.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe.read
12.03 ± 2% +1.1 13.12 ± 3% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.read
12.29 ± 2% +1.1 13.40 ± 3% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.read
13.83 ± 2% +1.2 15.02 ± 2% perf-profile.calltrace.cycles-pp.read
43.88 -3.7 40.20 perf-profile.children.cycles-pp._raw_spin_lock_irqsave
43.63 -3.7 39.96 ± 2% perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
43.54 -3.6 39.91 ± 2% perf-profile.children.cycles-pp.folio_lruvec_lock_irqsave
24.42 -2.3 22.14 ± 2% perf-profile.children.cycles-pp.__folio_batch_release
23.44 -2.2 21.28 perf-profile.children.cycles-pp.release_pages
28.83 -2.0 26.79 perf-profile.children.cycles-pp.truncate_inode_pages_range
29.06 -2.0 27.04 perf-profile.children.cycles-pp.evict
29.03 -2.0 27.01 perf-profile.children.cycles-pp.ext4_evict_inode
29.08 -2.0 27.06 perf-profile.children.cycles-pp.__dentry_kill
29.08 -2.0 27.06 perf-profile.children.cycles-pp.dentry_kill
29.10 -2.0 27.08 perf-profile.children.cycles-pp.dput
29.14 -2.0 27.12 perf-profile.children.cycles-pp.__close
29.12 -2.0 27.11 perf-profile.children.cycles-pp.__x64_sys_close
29.11 -2.0 27.09 perf-profile.children.cycles-pp.__fput
22.60 -1.5 21.15 perf-profile.children.cycles-pp.folio_batch_move_lru
23.95 -1.3 22.61 perf-profile.children.cycles-pp.filemap_add_folio
21.41 -1.3 20.07 perf-profile.children.cycles-pp.folio_add_lru
26.72 -1.2 25.56 perf-profile.children.cycles-pp.__filemap_get_folio
33.65 -0.7 32.94 perf-profile.children.cycles-pp.ext4_da_write_begin
1.79 ± 3% -0.4 1.42 ± 2% perf-profile.children.cycles-pp.cgroup_rstat_updated
1.78 ± 2% -0.2 1.58 perf-profile.children.cycles-pp.__mod_memcg_lruvec_state
0.80 -0.2 0.61 ± 2% perf-profile.children.cycles-pp.do_flush_stats
0.79 -0.2 0.61 perf-profile.children.cycles-pp.cgroup_rstat_flush
0.78 -0.2 0.61 perf-profile.children.cycles-pp.cgroup_rstat_flush_locked
0.83 -0.2 0.66 ± 2% perf-profile.children.cycles-pp.mem_cgroup_wb_stats
0.88 -0.2 0.71 ± 2% perf-profile.children.cycles-pp.balance_dirty_pages
0.59 -0.1 0.45 ± 2% perf-profile.children.cycles-pp.mem_cgroup_css_rstat_flush
1.29 ± 2% -0.1 1.17 ± 2% perf-profile.children.cycles-pp.lru_add_drain_cpu
2.65 -0.1 2.56 perf-profile.children.cycles-pp.__mod_lruvec_page_state
0.58 ± 3% -0.1 0.49 ± 2% perf-profile.children.cycles-pp.__count_memcg_events
1.96 -0.1 1.88 perf-profile.children.cycles-pp.balance_dirty_pages_ratelimited_flags
0.76 ± 3% -0.1 0.70 ± 2% perf-profile.children.cycles-pp.charge_memcg
0.94 ± 2% -0.1 0.88 perf-profile.children.cycles-pp.__mem_cgroup_charge
0.07 +0.0 0.08 perf-profile.children.cycles-pp.bdev_getblk
0.09 +0.0 0.10 ± 3% perf-profile.children.cycles-pp.ext4_fill_raw_inode
0.13 ± 2% +0.0 0.14 ± 3% perf-profile.children.cycles-pp.ext4_do_update_inode
0.29 ± 2% +0.0 0.31 perf-profile.children.cycles-pp.up_write
0.09 ± 6% +0.0 0.10 ± 4% perf-profile.children.cycles-pp.entry_SYSCALL_64_safe_stack
0.15 ± 3% +0.0 0.16 ± 3% perf-profile.children.cycles-pp.jbd2_journal_grab_journal_head
0.15 ± 3% +0.0 0.17 ± 2% perf-profile.children.cycles-pp.ext4_mark_iloc_dirty
0.14 ± 4% +0.0 0.16 ± 3% perf-profile.children.cycles-pp.rcu_core
0.36 +0.0 0.38 perf-profile.children.cycles-pp.generic_write_checks
0.19 ± 2% +0.0 0.20 ± 2% perf-profile.children.cycles-pp.jbd2_journal_try_to_free_buffers
0.11 ± 4% +0.0 0.12 ± 4% perf-profile.children.cycles-pp.folio_memcg_lock
0.24 ± 2% +0.0 0.26 perf-profile.children.cycles-pp.aa_file_perm
0.29 +0.0 0.31 ± 2% perf-profile.children.cycles-pp.folio_unlock
0.47 ± 2% +0.0 0.49 perf-profile.children.cycles-pp.ext4_es_insert_delayed_block
0.28 ± 3% +0.0 0.30 perf-profile.children.cycles-pp.__slab_free
0.21 ± 2% +0.0 0.23 ± 2% perf-profile.children.cycles-pp.__ext4_mark_inode_dirty
0.38 ± 2% +0.0 0.40 ± 3% perf-profile.children.cycles-pp.syscall_return_via_sysret
0.13 ± 3% +0.0 0.15 ± 2% perf-profile.children.cycles-pp.try_charge_memcg
0.30 ± 2% +0.0 0.33 ± 2% perf-profile.children.cycles-pp.disk_cp
0.58 +0.0 0.61 ± 2% perf-profile.children.cycles-pp.syscall_exit_to_user_mode
0.37 ± 3% +0.0 0.40 ± 3% perf-profile.children.cycles-pp.ext4_es_lookup_extent
0.42 +0.0 0.46 ± 2% perf-profile.children.cycles-pp.__mod_lruvec_state
0.02 ±141% +0.0 0.06 ± 9% perf-profile.children.cycles-pp.update_load_avg
0.55 ± 2% +0.0 0.59 ± 3% perf-profile.children.cycles-pp.xas_descend
0.26 ± 7% +0.0 0.30 ± 3% perf-profile.children.cycles-pp.ext4_dirty_inode
1.42 +0.0 1.46 perf-profile.children.cycles-pp.folio_account_dirtied
1.16 +0.0 1.20 perf-profile.children.cycles-pp.folio_create_empty_buffers
0.58 +0.0 0.62 ± 2% perf-profile.children.cycles-pp.xas_store
0.75 +0.0 0.79 ± 2% perf-profile.children.cycles-pp.fault_in_readable
0.51 ± 3% +0.0 0.55 ± 2% perf-profile.children.cycles-pp.ext4_da_reserve_space
0.82 +0.0 0.86 perf-profile.children.cycles-pp.delete_from_page_cache_batch
0.88 +0.0 0.92 ± 2% perf-profile.children.cycles-pp.get_page_from_freelist
0.56 ± 2% +0.0 0.61 ± 2% perf-profile.children.cycles-pp.inode_needs_update_time
0.29 ± 3% +0.0 0.34 ± 7% perf-profile.children.cycles-pp.ext4_nonda_switch
0.86 +0.1 0.92 ± 2% perf-profile.children.cycles-pp.fault_in_iov_iter_readable
1.04 +0.1 1.10 perf-profile.children.cycles-pp.entry_SYSRETQ_unsafe_stack
0.72 +0.1 0.77 ± 2% perf-profile.children.cycles-pp.__cond_resched
1.75 +0.1 1.80 perf-profile.children.cycles-pp.__folio_mark_dirty
0.32 ± 7% +0.1 0.38 ± 4% perf-profile.children.cycles-pp.generic_update_time
0.84 +0.1 0.90 perf-profile.children.cycles-pp.filemap_get_entry
0.78 ± 3% +0.1 0.85 ± 2% perf-profile.children.cycles-pp.atime_needs_update
0.43 ± 6% +0.1 0.50 ± 3% perf-profile.children.cycles-pp.__mark_inode_dirty
1.06 +0.1 1.12 perf-profile.children.cycles-pp.__alloc_pages
0.79 ± 3% +0.1 0.86 perf-profile.children.cycles-pp.ext4_file_read_iter
1.22 +0.1 1.29 perf-profile.children.cycles-pp.folio_alloc
0.84 ± 3% +0.1 0.91 ± 2% perf-profile.children.cycles-pp.touch_atime
0.89 ± 2% +0.1 0.96 ± 2% perf-profile.children.cycles-pp.apparmor_file_permission
1.24 +0.1 1.32 perf-profile.children.cycles-pp.xas_load
2.28 +0.1 2.37 perf-profile.children.cycles-pp.mark_buffer_dirty
1.49 +0.1 1.58 perf-profile.children.cycles-pp.copyin
1.13 ± 2% +0.1 1.22 ± 2% perf-profile.children.cycles-pp.security_file_permission
2.23 +0.1 2.32 perf-profile.children.cycles-pp.try_to_free_buffers
1.84 ± 2% +0.1 1.94 perf-profile.children.cycles-pp.copyout
1.37 +0.1 1.47 perf-profile.children.cycles-pp.__entry_text_start
1.17 ± 3% +0.1 1.28 ± 2% perf-profile.children.cycles-pp.file_modified
1.92 +0.1 2.04 perf-profile.children.cycles-pp.copy_page_from_iter_atomic
2.04 ± 2% +0.1 2.16 perf-profile.children.cycles-pp._copy_to_iter
2.45 +0.1 2.58 perf-profile.children.cycles-pp.memset_orig
2.45 +0.1 2.58 perf-profile.children.cycles-pp.zero_user_segments
2.25 ± 2% +0.1 2.39 perf-profile.children.cycles-pp.copy_page_to_iter
2.04 ± 3% +0.2 2.19 ± 2% perf-profile.children.cycles-pp.ext4_da_get_block_prep
0.86 ± 3% +0.2 1.01 ± 2% perf-profile.children.cycles-pp.percpu_counter_add_batch
2.00 ± 3% +0.2 2.16 ± 2% perf-profile.children.cycles-pp.ext4_da_map_blocks
3.13 +0.2 3.28 perf-profile.children.cycles-pp.truncate_cleanup_folio
3.95 +0.2 4.14 perf-profile.children.cycles-pp.__block_commit_write
4.17 +0.2 4.37 perf-profile.children.cycles-pp.block_write_end
4.89 +0.2 5.14 perf-profile.children.cycles-pp.ext4_da_do_write_end
6.08 +0.3 6.43 perf-profile.children.cycles-pp.ext4_block_write_begin
8.12 ± 4% +0.8 8.92 ± 4% perf-profile.children.cycles-pp.filemap_read
10.92 ± 3% +1.0 11.96 ± 3% perf-profile.children.cycles-pp.vfs_read
11.55 ± 3% +1.1 12.61 ± 3% perf-profile.children.cycles-pp.ksys_read
14.32 ± 2% +1.2 15.55 ± 2% perf-profile.children.cycles-pp.read
43.63 -3.7 39.96 ± 2% perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
1.56 ± 4% -0.3 1.24 ± 2% perf-profile.self.cycles-pp.cgroup_rstat_updated
0.57 -0.1 0.44 ± 3% perf-profile.self.cycles-pp.mem_cgroup_css_rstat_flush
0.10 -0.0 0.07 ± 6% perf-profile.self.cycles-pp.cgroup_rstat_flush_locked
0.12 ± 3% +0.0 0.14 ± 3% perf-profile.self.cycles-pp.folio_account_cleaned
0.22 ± 2% +0.0 0.24 ± 3% perf-profile.self.cycles-pp.mod_objcg_state
0.16 ± 2% +0.0 0.18 ± 2% perf-profile.self.cycles-pp.drop_buffers
0.20 +0.0 0.22 ± 2% perf-profile.self.cycles-pp.aa_file_perm
0.17 ± 2% +0.0 0.19 ± 3% perf-profile.self.cycles-pp.folio_create_empty_buffers
0.34 ± 2% +0.0 0.36 ± 2% perf-profile.self.cycles-pp.block_invalidate_folio
0.23 ± 2% +0.0 0.25 ± 3% perf-profile.self.cycles-pp.__fdget_pos
0.28 +0.0 0.29 perf-profile.self.cycles-pp.folio_unlock
0.09 ± 5% +0.0 0.10 ± 7% perf-profile.self.cycles-pp.try_charge_memcg
0.20 ± 5% +0.0 0.22 ± 3% perf-profile.self.cycles-pp.kmem_cache_free
0.28 ± 3% +0.0 0.30 perf-profile.self.cycles-pp.__slab_free
0.31 ± 2% +0.0 0.33 ± 3% perf-profile.self.cycles-pp.xas_store
0.37 ± 2% +0.0 0.40 ± 2% perf-profile.self.cycles-pp.syscall_return_via_sysret
0.44 +0.0 0.47 ± 2% perf-profile.self.cycles-pp.__cond_resched
0.29 ± 2% +0.0 0.32 ± 3% perf-profile.self.cycles-pp.do_syscall_64
0.36 +0.0 0.39 ± 2% perf-profile.self.cycles-pp.filemap_get_entry
0.42 +0.0 0.46 ± 2% perf-profile.self.cycles-pp.copy_page_from_iter_atomic
0.42 +0.0 0.45 ± 2% perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe
0.54 +0.0 0.57 ± 2% perf-profile.self.cycles-pp.generic_perform_write
0.42 ± 2% +0.0 0.46 ± 2% perf-profile.self.cycles-pp.xas_load
0.47 ± 2% +0.0 0.51 perf-profile.self.cycles-pp.ext4_da_do_write_end
0.47 ± 2% +0.0 0.51 ± 3% perf-profile.self.cycles-pp.xas_descend
0.72 +0.0 0.77 ± 2% perf-profile.self.cycles-pp.fault_in_readable
0.56 +0.0 0.60 ± 2% perf-profile.self.cycles-pp.__filemap_get_folio
0.28 ± 2% +0.0 0.32 ± 7% perf-profile.self.cycles-pp.ext4_nonda_switch
1.01 +0.0 1.06 perf-profile.self.cycles-pp.entry_SYSRETQ_unsafe_stack
0.40 +0.0 0.44 ± 2% perf-profile.self.cycles-pp.__entry_text_start
0.40 ± 4% +0.1 0.45 ± 4% perf-profile.self.cycles-pp.atime_needs_update
0.63 ± 3% +0.1 0.68 ± 4% perf-profile.self.cycles-pp.apparmor_file_permission
0.56 ± 2% +0.1 0.62 ± 2% perf-profile.self.cycles-pp.ext4_da_write_begin
0.50 ± 6% +0.1 0.56 ± 5% perf-profile.self.cycles-pp.__mod_memcg_lruvec_state
0.77 ± 3% +0.1 0.83 ± 2% perf-profile.self.cycles-pp.ext4_file_read_iter
0.92 +0.1 0.99 ± 2% perf-profile.self.cycles-pp.vfs_read
1.46 +0.1 1.54 perf-profile.self.cycles-pp.copyin
1.53 +0.1 1.62 perf-profile.self.cycles-pp.__block_commit_write
1.81 ± 2% +0.1 1.90 perf-profile.self.cycles-pp.copyout
2.42 +0.1 2.56 perf-profile.self.cycles-pp.memset_orig
0.78 ± 2% +0.1 0.91 ± 2% perf-profile.self.cycles-pp.percpu_counter_add_batch
1.31 ± 2% +0.1 1.45 perf-profile.self.cycles-pp.vfs_write
1.73 ± 4% +0.2 1.90 ± 5% perf-profile.self.cycles-pp.filemap_read
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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