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Message-ID: <202405271406.9b9763f6-oliver.sang@intel.com>
Date: Mon, 27 May 2024 14:37:17 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Zhang Yi <yi.zhang@...weicloud.com>
CC: <oe-lkp@...ts.linux.dev>, <lkp@...el.com>, Dave Chinner
	<david@...morbit.com>, <linux-ext4@...r.kernel.org>, <ying.huang@...el.com>,
	<feng.tang@...el.com>, <fengwei.yin@...el.com>,
	<linux-fsdevel@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<tytso@....edu>, <adilger.kernel@...ger.ca>, <jack@...e.cz>,
	<ritesh.list@...il.com>, <yi.zhang@...wei.com>, <yi.zhang@...weicloud.com>,
	<chengzhihao1@...wei.com>, <yukuai3@...wei.com>, <oliver.sang@...el.com>
Subject: Re: [PATCH] ext4/jbd2: drop jbd2_transaction_committed()



Hello,

kernel test robot noticed a 674.0% improvement of stress-ng.fiemap.ops_per_sec on:


commit: 8a7952dd64b38f3ac2754ca550b52ac3ca921c1a ("[PATCH] ext4/jbd2: drop jbd2_transaction_committed()")
url: https://github.com/intel-lab-lkp/linux/commits/Zhang-Yi/ext4-jbd2-drop-jbd2_transaction_committed/20240513-153311
base: https://git.kernel.org/cgit/linux/kernel/git/tytso/ext4.git dev
patch link: https://lore.kernel.org/all/20240513072119.2335346-1-yi.zhang@huaweicloud.com/
patch subject: [PATCH] ext4/jbd2: drop jbd2_transaction_committed()

testcase: stress-ng
test machine: 64 threads 2 sockets Intel(R) Xeon(R) Gold 6346 CPU @ 3.10GHz (Ice Lake) with 256G memory
parameters:

	nr_threads: 100%
	disk: 1HDD
	testtime: 60s
	fs: ext4
	test: fiemap
	cpufreq_governor: performance






Details are as below:
-------------------------------------------------------------------------------------------------->


The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20240527/202405271406.9b9763f6-oliver.sang@intel.com

=========================================================================================
compiler/cpufreq_governor/disk/fs/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime:
  gcc-13/performance/1HDD/ext4/x86_64-rhel-8.3/100%/debian-12-x86_64-20240206.cgz/lkp-icl-2sp8/fiemap/stress-ng/60s

commit: 
  26770a717c ("jbd2: add prefix 'jbd2' for 'shrink_type'")
  8a7952dd64 ("ext4/jbd2: drop jbd2_transaction_committed()")

26770a717cac5704 8a7952dd64b38f3ac2754ca550b 
---------------- --------------------------- 
         %stddev     %change         %stddev
             \          |                \  
      1.13 ±  5%     +52.7%       1.73 ±  3%  iostat.cpu.user
      0.01 ± 47%      +0.0        0.04 ± 44%  mpstat.cpu.all.iowait%
      0.02 ±  4%      -0.0        0.01 ± 15%  mpstat.cpu.all.soft%
      1.15 ±  5%      +0.6        1.75 ±  3%  mpstat.cpu.all.usr%
    100427 ± 42%     -59.1%      41106 ± 66%  numa-vmstat.node0.nr_anon_pages
    149979 ± 34%    +205.2%     457720 ± 31%  numa-vmstat.node1.nr_inactive_anon
    149980 ± 34%    +205.2%     457720 ± 31%  numa-vmstat.node1.nr_zone_inactive_anon
    402376 ± 42%     -59.1%     164453 ± 66%  numa-meminfo.node0.AnonPages
    424656 ± 39%     -57.6%     180029 ± 58%  numa-meminfo.node0.AnonPages.max
    620453 ± 33%    +198.4%    1851452 ± 30%  numa-meminfo.node1.Inactive
    601997 ± 34%    +204.4%    1832749 ± 31%  numa-meminfo.node1.Inactive(anon)
      2387 ±  2%     +12.8%       2693 ±  4%  vmstat.io.bo
     10.17 ± 13%     +83.8%      18.69 ±  3%  vmstat.procs.b
    201402 ±  9%    +631.9%    1474068 ±  6%  vmstat.system.cs
    167899            +5.5%     177141        vmstat.system.in
    347.50 ± 16%     +53.4%     533.00 ± 10%  perf-c2c.DRAM.local
      4232 ± 48%    +166.1%      11262 ± 24%  perf-c2c.DRAM.remote
     23484 ± 10%    +119.8%      51621 ±  7%  perf-c2c.HITM.local
      3377 ± 56%    +179.0%       9424 ± 27%  perf-c2c.HITM.remote
     26861 ±  7%    +127.3%      61046 ±  5%  perf-c2c.HITM.total
   7612782 ±  7%    +676.3%   59099460 ±  6%  stress-ng.fiemap.ops
    124734 ±  8%    +674.0%     965466 ±  6%  stress-ng.fiemap.ops_per_sec
  12752270 ± 10%    +643.8%   94847653 ±  5%  stress-ng.time.involuntary_context_switches
     19.02 ±  6%    +124.6%      42.70 ±  5%  stress-ng.time.user_time
     62295           +17.8%      73411 ±  4%  stress-ng.time.voluntary_context_switches
    262799 ±  5%     +90.1%     499700 ± 43%  meminfo.Active
   3750501           +38.7%    5203048 ±  2%  meminfo.Cached
   3989040           +36.2%    5432649 ±  2%  meminfo.Committed_AS
   1154859 ±  3%    +105.8%    2376633 ± 12%  meminfo.Inactive
   1118790 ±  3%    +109.2%    2340758 ± 12%  meminfo.Inactive(anon)
    362491 ±  7%    +153.0%     917217 ± 19%  meminfo.Mapped
   5902699           +25.8%    7426870        meminfo.Memused
    546333 ±  3%    +265.7%    1998111 ±  5%  meminfo.Shmem
   5963280           +25.0%    7456799        meminfo.max_used_kB
      0.92 ± 16%     -21.5%       0.72 ±  8%  sched_debug.cfs_rq:/.h_nr_running.stddev
    809.29 ±  9%     -15.5%     683.50 ±  7%  sched_debug.cfs_rq:/.runnable_avg.stddev
    567.16 ± 10%    +123.7%       1268 ±  9%  sched_debug.cfs_rq:/.util_est.avg
      2015 ±  8%     +41.9%       2859 ± 11%  sched_debug.cfs_rq:/.util_est.max
      0.75 ±223%  +23377.8%     176.08 ± 20%  sched_debug.cfs_rq:/.util_est.min
    447.08 ±  8%     +19.1%     532.35 ± 12%  sched_debug.cfs_rq:/.util_est.stddev
      0.92 ± 16%     -22.1%       0.71 ±  8%  sched_debug.cpu.nr_running.stddev
    101043 ±  9%    +621.7%     729210 ±  5%  sched_debug.cpu.nr_switches.avg
    176826 ± 18%    +423.9%     926474 ±  5%  sched_debug.cpu.nr_switches.max
     17586 ± 35%    +762.4%     151656 ± 44%  sched_debug.cpu.nr_switches.min
     54968 ± 44%    +170.9%     148885 ±  5%  sched_debug.cpu.nr_switches.stddev
      5712            +5.1%       6002 ±  2%  proc-vmstat.nr_active_file
    939938           +38.6%    1302470 ±  2%  proc-vmstat.nr_file_pages
    280225 ±  3%    +108.7%     584958 ± 12%  proc-vmstat.nr_inactive_anon
     91383 ±  8%    +149.7%     228197 ± 19%  proc-vmstat.nr_mapped
    136324 ±  3%    +265.7%     498577 ±  5%  proc-vmstat.nr_shmem
     25123            +2.8%      25834        proc-vmstat.nr_slab_reclaimable
      5712            +5.1%       6002 ±  2%  proc-vmstat.nr_zone_active_file
    280225 ±  3%    +108.7%     584958 ± 12%  proc-vmstat.nr_zone_inactive_anon
     15324 ± 30%    +359.4%      70400 ±  9%  proc-vmstat.numa_hint_faults
     10098 ± 24%    +283.5%      38729 ± 19%  proc-vmstat.numa_hint_faults_local
    604637           +86.4%    1127295 ±  4%  proc-vmstat.numa_hit
    538359           +97.1%    1061202 ±  4%  proc-vmstat.numa_local
    532388           +13.4%     603511 ±  3%  proc-vmstat.numa_pte_updates
    723145           +72.1%    1244321 ±  3%  proc-vmstat.pgalloc_normal
    383685 ±  2%     +21.4%     465726 ±  2%  proc-vmstat.pgfault
    152450           +13.4%     172900 ±  4%  proc-vmstat.pgpgout
 2.951e+09 ±  6%    +571.9%  1.983e+10 ±  2%  perf-stat.i.branch-instructions
      0.64 ±  4%      -0.2        0.40 ±  2%  perf-stat.i.branch-miss-rate%
  19046341 ±  4%    +291.2%   74517781        perf-stat.i.branch-misses
   9666270 ± 31%    +318.8%   40484483 ± 19%  perf-stat.i.cache-misses
  70884859 ±  6%    +367.8%  3.316e+08 ±  2%  perf-stat.i.cache-references
    213832 ±  9%    +623.2%    1546476 ±  6%  perf-stat.i.context-switches
     15.20 ±  7%     -84.9%       2.30 ±  2%  perf-stat.i.cpi
    414.63 ±  5%     +10.9%     459.73 ±  8%  perf-stat.i.cpu-migrations
     26710 ± 31%     -77.7%       5960 ± 22%  perf-stat.i.cycles-between-cache-misses
 1.501e+10 ±  6%    +556.2%  9.849e+10 ±  2%  perf-stat.i.instructions
      0.07 ±  6%    +515.9%       0.44 ±  2%  perf-stat.i.ipc
      3.33 ±  9%    +626.6%      24.22 ±  6%  perf-stat.i.metric.K/sec
      4908 ±  3%     +26.6%       6216 ±  3%  perf-stat.i.minor-faults
      4908 ±  3%     +26.6%       6216 ±  3%  perf-stat.i.page-faults
      0.65 ±  5%      -0.3        0.38 ±  2%  perf-stat.overall.branch-miss-rate%
     15.14 ±  6%     -84.8%       2.30 ±  2%  perf-stat.overall.cpi
     25496 ± 29%     -77.2%       5824 ± 21%  perf-stat.overall.cycles-between-cache-misses
      0.07 ±  6%    +556.1%       0.44 ±  2%  perf-stat.overall.ipc
   2.9e+09 ±  6%    +572.3%   1.95e+10 ±  2%  perf-stat.ps.branch-instructions
  18850245 ±  4%    +289.0%   73330498        perf-stat.ps.branch-misses
   9571442 ± 31%    +315.9%   39805993 ± 19%  perf-stat.ps.cache-misses
  70175556 ±  6%    +365.5%  3.267e+08 ±  2%  perf-stat.ps.cache-references
    205492 ±  9%    +636.9%    1514212 ±  6%  perf-stat.ps.context-switches
    405.62 ±  5%     +10.8%     449.30 ±  8%  perf-stat.ps.cpu-migrations
 1.475e+10 ±  6%    +556.5%  9.684e+10 ±  2%  perf-stat.ps.instructions
      4823 ±  3%     +25.8%       6069 ±  4%  perf-stat.ps.minor-faults
      4823 ±  3%     +25.8%       6069 ±  4%  perf-stat.ps.page-faults
 9.213e+11 ±  6%    +555.4%  6.038e+12 ±  2%  perf-stat.total.instructions
     85.73           -85.7        0.00        perf-profile.calltrace.cycles-pp.jbd2_transaction_committed.ext4_set_iomap.ext4_iomap_begin_report.iomap_iter.iomap_fiemap
     86.11           -84.1        1.99 ±  2%  perf-profile.calltrace.cycles-pp.ext4_set_iomap.ext4_iomap_begin_report.iomap_iter.iomap_fiemap.do_vfs_ioctl
     50.51 ±  3%     -50.5        0.00        perf-profile.calltrace.cycles-pp._raw_read_lock.jbd2_transaction_committed.ext4_set_iomap.ext4_iomap_begin_report.iomap_iter
     96.50           -12.4       84.06        perf-profile.calltrace.cycles-pp.ext4_iomap_begin_report.iomap_iter.iomap_fiemap.do_vfs_ioctl.__x64_sys_ioctl
     97.49            -5.6       91.94        perf-profile.calltrace.cycles-pp.iomap_iter.iomap_fiemap.do_vfs_ioctl.__x64_sys_ioctl.do_syscall_64
     98.08            -1.5       96.62        perf-profile.calltrace.cycles-pp.iomap_fiemap.do_vfs_ioctl.__x64_sys_ioctl.do_syscall_64.entry_SYSCALL_64_after_hwframe
     98.13            -1.1       96.99        perf-profile.calltrace.cycles-pp.do_vfs_ioctl.__x64_sys_ioctl.do_syscall_64.entry_SYSCALL_64_after_hwframe.ioctl
     98.14            -1.1       97.05        perf-profile.calltrace.cycles-pp.__x64_sys_ioctl.do_syscall_64.entry_SYSCALL_64_after_hwframe.ioctl
     98.18            -1.1       97.12        perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.ioctl
     98.19            -1.0       97.14        perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.ioctl
     98.22            -0.9       97.31        perf-profile.calltrace.cycles-pp.ioctl
      0.62 ±  9%      +0.3        0.94        perf-profile.calltrace.cycles-pp.__schedule.schedule.__x64_sys_sched_yield.do_syscall_64.entry_SYSCALL_64_after_hwframe
      0.62 ±  9%      +0.3        0.96        perf-profile.calltrace.cycles-pp.schedule.__x64_sys_sched_yield.do_syscall_64.entry_SYSCALL_64_after_hwframe.__sched_yield
      0.70 ±  9%      +0.5        1.18        perf-profile.calltrace.cycles-pp.__x64_sys_sched_yield.do_syscall_64.entry_SYSCALL_64_after_hwframe.__sched_yield
      0.87 ±  8%      +0.7        1.58        perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__sched_yield
      0.87 ±  8%      +0.7        1.59        perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__sched_yield
      0.00            +1.0        1.00 ±  4%  perf-profile.calltrace.cycles-pp.ext4_sb_block_valid.__check_block_validity.ext4_map_blocks.ext4_iomap_begin_report.iomap_iter
      0.94 ±  8%      +1.0        1.98 ±  2%  perf-profile.calltrace.cycles-pp.__sched_yield
      0.00            +1.1        1.10 ±  2%  perf-profile.calltrace.cycles-pp._copy_to_user.fiemap_fill_next_extent.iomap_fiemap.do_vfs_ioctl.__x64_sys_ioctl
      0.00            +1.3        1.35 ±  8%  perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.percpu_counter_add_batch.ext4_es_lookup_extent.ext4_map_blocks
      0.00            +1.5        1.48 ±  2%  perf-profile.calltrace.cycles-pp.__check_block_validity.ext4_map_blocks.ext4_iomap_begin_report.iomap_iter.iomap_fiemap
      0.00            +1.6        1.58 ±  7%  perf-profile.calltrace.cycles-pp._raw_spin_lock.percpu_counter_add_batch.ext4_es_lookup_extent.ext4_map_blocks.ext4_iomap_begin_report
      0.00            +3.2        3.22 ±  2%  perf-profile.calltrace.cycles-pp.fiemap_fill_next_extent.iomap_fiemap.do_vfs_ioctl.__x64_sys_ioctl.do_syscall_64
      4.96 ±  6%      +4.8        9.72 ±  2%  perf-profile.calltrace.cycles-pp._raw_read_lock.ext4_es_lookup_extent.ext4_map_blocks.ext4_iomap_begin_report.iomap_iter
      0.78 ±  7%      +5.4        6.22 ±  2%  perf-profile.calltrace.cycles-pp.iomap_iter_advance.iomap_iter.iomap_fiemap.do_vfs_ioctl.__x64_sys_ioctl
      0.62 ±  6%     +50.6       51.27        perf-profile.calltrace.cycles-pp.percpu_counter_add_batch.ext4_es_lookup_extent.ext4_map_blocks.ext4_iomap_begin_report.iomap_iter
      9.55 ±  7%     +66.3       75.88        perf-profile.calltrace.cycles-pp.ext4_es_lookup_extent.ext4_map_blocks.ext4_iomap_begin_report.iomap_iter.iomap_fiemap
     10.12 ±  7%     +69.9       79.98        perf-profile.calltrace.cycles-pp.ext4_map_blocks.ext4_iomap_begin_report.iomap_iter.iomap_fiemap.do_vfs_ioctl
     85.84           -85.8        0.00        perf-profile.children.cycles-pp.jbd2_transaction_committed
     86.14           -84.0        2.10 ±  2%  perf-profile.children.cycles-pp.ext4_set_iomap
     55.59 ±  3%     -45.8        9.83 ±  2%  perf-profile.children.cycles-pp._raw_read_lock
     96.56           -12.1       84.50        perf-profile.children.cycles-pp.ext4_iomap_begin_report
     97.54            -5.3       92.26        perf-profile.children.cycles-pp.iomap_iter
     98.11            -1.3       96.84        perf-profile.children.cycles-pp.iomap_fiemap
     98.14            -1.1       97.00        perf-profile.children.cycles-pp.do_vfs_ioctl
     98.14            -1.1       97.06        perf-profile.children.cycles-pp.__x64_sys_ioctl
     98.22            -0.9       97.34        perf-profile.children.cycles-pp.ioctl
     99.42            -0.7       98.76        perf-profile.children.cycles-pp.do_syscall_64
     99.43            -0.6       98.81        perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
      0.39 ± 21%      -0.1        0.25 ±  6%  perf-profile.children.cycles-pp.asm_sysvec_apic_timer_interrupt
      0.14 ± 24%      -0.1        0.03 ±105%  perf-profile.children.cycles-pp.build_id__mark_dso_hit
      0.19 ±  5%      +0.0        0.21 ±  6%  perf-profile.children.cycles-pp.__sysvec_apic_timer_interrupt
      0.08 ± 13%      +0.0        0.11        perf-profile.children.cycles-pp.switch_fpu_return
      0.09 ±  7%      +0.0        0.12 ±  5%  perf-profile.children.cycles-pp.update_process_times
      0.11 ±  5%      +0.0        0.14 ±  6%  perf-profile.children.cycles-pp.__hrtimer_run_queues
      0.10 ±  5%      +0.0        0.14 ±  5%  perf-profile.children.cycles-pp.tick_nohz_handler
      0.00            +0.1        0.05        perf-profile.children.cycles-pp.__fdget
      0.00            +0.1        0.05 ±  7%  perf-profile.children.cycles-pp.__update_load_avg_se
      0.00            +0.1        0.06 ±  9%  perf-profile.children.cycles-pp.entry_SYSRETQ_unsafe_stack
      0.00            +0.1        0.06 ±  6%  perf-profile.children.cycles-pp.syscall_return_via_sysret
      0.00            +0.1        0.06        perf-profile.children.cycles-pp.___perf_sw_event
      0.00            +0.1        0.06        perf-profile.children.cycles-pp.__dequeue_entity
      0.00            +0.1        0.06 ±  6%  perf-profile.children.cycles-pp.__switch_to_asm
      0.00            +0.1        0.06 ±  7%  perf-profile.children.cycles-pp.pick_eevdf
      0.00            +0.1        0.07        perf-profile.children.cycles-pp.__switch_to
      0.00            +0.1        0.08 ±  6%  perf-profile.children.cycles-pp.entry_SYSCALL_64
      0.00            +0.1        0.08 ±  4%  perf-profile.children.cycles-pp.rseq_ip_fixup
      0.00            +0.1        0.09 ±  4%  perf-profile.children.cycles-pp.restore_fpregs_from_fpstate
      0.27 ± 22%      +0.1        0.37 ±  9%  perf-profile.children.cycles-pp.perf_session__process_events
      0.27 ± 22%      +0.1        0.37 ±  9%  perf-profile.children.cycles-pp.record__finish_output
      0.26 ± 25%      +0.1        0.36 ±  9%  perf-profile.children.cycles-pp.reader__read_event
      0.00            +0.1        0.11 ±  3%  perf-profile.children.cycles-pp.set_next_entity
      0.00            +0.1        0.12 ±  4%  perf-profile.children.cycles-pp.update_load_avg
      0.08 ±  6%      +0.1        0.20        perf-profile.children.cycles-pp.do_sched_yield
      0.00            +0.1        0.12 ±  4%  perf-profile.children.cycles-pp.put_prev_entity
      0.02 ±141%      +0.1        0.15 ±  2%  perf-profile.children.cycles-pp.update_curr
      0.09 ± 36%      +0.1        0.23 ± 18%  perf-profile.children.cycles-pp.process_simple
      0.00            +0.1        0.15 ±  3%  perf-profile.children.cycles-pp.__rseq_handle_notify_resume
      0.07 ± 57%      +0.1        0.22 ± 19%  perf-profile.children.cycles-pp.queue_event
      0.00            +0.1        0.15 ±  4%  perf-profile.children.cycles-pp.clear_bhb_loop
      0.00            +0.1        0.15 ±  4%  perf-profile.children.cycles-pp.stress_fiemap
      0.07 ± 57%      +0.2        0.22 ± 19%  perf-profile.children.cycles-pp.ordered_events__queue
      0.00            +0.2        0.16 ±  2%  perf-profile.children.cycles-pp.yield_task_fair
      0.00            +0.2        0.16 ±  3%  perf-profile.children.cycles-pp.ext4_inode_block_valid
      0.20 ±  5%      +0.2        0.41        perf-profile.children.cycles-pp.syscall_exit_to_user_mode
      0.09 ± 10%      +0.3        0.38 ±  2%  perf-profile.children.cycles-pp.pick_next_task_fair
      0.62 ±  9%      +0.3        0.95        perf-profile.children.cycles-pp.__schedule
      0.63 ± 10%      +0.3        0.97        perf-profile.children.cycles-pp.schedule
      0.06 ± 11%      +0.4        0.48 ±  3%  perf-profile.children.cycles-pp.iomap_to_fiemap
      0.70 ±  9%      +0.5        1.18        perf-profile.children.cycles-pp.__x64_sys_sched_yield
      0.13 ±  8%      +0.9        1.05 ±  3%  perf-profile.children.cycles-pp.ext4_sb_block_valid
      0.94 ±  8%      +1.1        2.03 ±  2%  perf-profile.children.cycles-pp.__sched_yield
      0.16 ±  7%      +1.1        1.27 ±  2%  perf-profile.children.cycles-pp._copy_to_user
      0.20 ±  8%      +1.4        1.59 ±  2%  perf-profile.children.cycles-pp.__check_block_validity
      0.20 ±  7%      +1.4        1.64 ±  7%  perf-profile.children.cycles-pp._raw_spin_lock
      0.41 ±  7%      +2.9        3.30 ±  2%  perf-profile.children.cycles-pp.fiemap_fill_next_extent
      0.80 ±  7%      +5.6        6.35 ±  2%  perf-profile.children.cycles-pp.iomap_iter_advance
      0.64 ±  7%     +50.8       51.40        perf-profile.children.cycles-pp.percpu_counter_add_batch
      9.60 ±  7%     +66.7       76.28        perf-profile.children.cycles-pp.ext4_es_lookup_extent
     10.16 ±  7%     +70.2       80.39        perf-profile.children.cycles-pp.ext4_map_blocks
     55.43 ±  3%     -45.7        9.70 ±  2%  perf-profile.self.cycles-pp._raw_read_lock
     34.41 ±  6%     -34.4        0.00        perf-profile.self.cycles-pp.jbd2_transaction_committed
      0.10 ± 10%      -0.0        0.07 ±  5%  perf-profile.self.cycles-pp.prepare_task_switch
      0.08 ± 11%      +0.0        0.12 ±  4%  perf-profile.self.cycles-pp.__schedule
      0.00            +0.1        0.05        perf-profile.self.cycles-pp.___perf_sw_event
      0.00            +0.1        0.05        perf-profile.self.cycles-pp.__update_load_avg_se
      0.00            +0.1        0.05        perf-profile.self.cycles-pp.update_curr
      0.00            +0.1        0.05 ±  7%  perf-profile.self.cycles-pp.entry_SYSRETQ_unsafe_stack
      0.00            +0.1        0.06 ±  9%  perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe
      0.00            +0.1        0.06 ± 13%  perf-profile.self.cycles-pp.__sched_yield
      0.00            +0.1        0.06 ±  6%  perf-profile.self.cycles-pp.__switch_to_asm
      0.00            +0.1        0.07        perf-profile.self.cycles-pp.__switch_to
      0.20 ±  7%      +0.1        0.28 ±  4%  perf-profile.self.cycles-pp._raw_spin_lock
      0.00            +0.1        0.09 ±  4%  perf-profile.self.cycles-pp.restore_fpregs_from_fpstate
      0.00            +0.1        0.11 ±  4%  perf-profile.self.cycles-pp.ext4_inode_block_valid
      0.00            +0.1        0.13 ±  5%  perf-profile.self.cycles-pp.stress_fiemap
      0.07 ± 57%      +0.1        0.22 ± 19%  perf-profile.self.cycles-pp.queue_event
      0.00            +0.1        0.15 ±  4%  perf-profile.self.cycles-pp.clear_bhb_loop
      0.05 ± 45%      +0.3        0.38 ±  2%  perf-profile.self.cycles-pp.__check_block_validity
      0.03 ± 70%      +0.3        0.38 ±  3%  perf-profile.self.cycles-pp.iomap_to_fiemap
      0.13 ±  7%      +0.9        1.00 ±  4%  perf-profile.self.cycles-pp.ext4_sb_block_valid
      0.13 ±  7%      +0.9        1.05 ±  2%  perf-profile.self.cycles-pp.iomap_fiemap
      0.16 ±  7%      +1.1        1.24 ±  2%  perf-profile.self.cycles-pp._copy_to_user
      0.19 ±  7%      +1.3        1.52 ±  2%  perf-profile.self.cycles-pp.iomap_iter
      0.29 ± 11%      +1.6        1.88 ±  2%  perf-profile.self.cycles-pp.ext4_set_iomap
      0.25 ±  8%      +1.8        2.04 ±  2%  perf-profile.self.cycles-pp.fiemap_fill_next_extent
      0.27 ±  8%      +1.9        2.21 ±  2%  perf-profile.self.cycles-pp.ext4_iomap_begin_report
      0.38 ± 13%      +2.3        2.70 ±  4%  perf-profile.self.cycles-pp.ext4_map_blocks
      0.78 ±  7%      +5.4        6.23 ±  2%  perf-profile.self.cycles-pp.iomap_iter_advance
      3.98 ±  8%     +11.1       15.12 ±  2%  perf-profile.self.cycles-pp.ext4_es_lookup_extent
      0.56 ±  7%     +48.9       49.48        perf-profile.self.cycles-pp.percpu_counter_add_batch




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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