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Message-ID: <20220320152426.GE6208@xsang-OptiPlex-9020>
Date:   Sun, 20 Mar 2022 23:24:26 +0800
From:   kernel test robot <oliver.sang@...el.com>
To:     "Darrick J. Wong" <djwong@...nel.org>
Cc:     0day robot <lkp@...el.com>, LKML <linux-kernel@...r.kernel.org>,
        lkp@...ts.01.org, ying.huang@...el.com, feng.tang@...el.com,
        zhengjun.xing@...ux.intel.com, fengwei.yin@...el.com,
        Filipe Manana <fdmanana@...nel.org>,
        linux-btrfs@...r.kernel.org
Subject: [btrfs]  7664aed024:  fio.write_iops 29.3% improvement



Greeting,

FYI, we noticed a 29.3% improvement of fio.write_iops due to commit:


commit: 7664aed02431897aff0c2c96c683176ba7ba72f6 ("[PATCH v2] btrfs: fix fallocate to use file_modified to update permissions consistently")
url: https://github.com/0day-ci/linux/commits/Darrick-J-Wong/btrfs-fix-fallocate-to-use-file_modified-to-update-permissions-consistently/20220315-015717
base: https://git.kernel.org/cgit/linux/kernel/git/kdave/linux.git for-next
patch link: https://lore.kernel.org/linux-btrfs/20220314175532.GB8165@magnolia

in testcase: fio-basic
on test machine: 96 threads 2 sockets Ice Lake with 256G memory
with following parameters:

	runtime: 300s
	disk: 1HDD
	fs: btrfs
	nr_task: 100%
	test_size: 128G
	rw: randwrite
	bs: 4k
	ioengine: ftruncate
	cpufreq_governor: performance
	ucode: 0xb000280

test-description: Fio is a tool that will spawn a number of threads or processes doing a particular type of I/O action as specified by the user.
test-url: https://github.com/axboe/fio





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


To reproduce:

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        sudo bin/lkp install job.yaml           # job file is attached in this email
        bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run
        sudo bin/lkp run generated-yaml-file

        # if come across any failure that blocks the test,
        # please remove ~/.lkp and /lkp dir to run from a clean state.

=========================================================================================
bs/compiler/cpufreq_governor/disk/fs/ioengine/kconfig/nr_task/rootfs/runtime/rw/tbox_group/test_size/testcase/ucode:
  4k/gcc-9/performance/1HDD/btrfs/ftruncate/x86_64-rhel-8.3/100%/debian-10.4-x86_64-20200603.cgz/300s/randwrite/lkp-icl-2sp1/128G/fio-basic/0xb000280

commit: 
  89a925d756 ("Merge branch 'for-next-current-v5.16-20220314' into for-next-20220314")
  7664aed024 ("btrfs: fix fallocate to use file_modified to update permissions consistently")

89a925d7560844e1 7664aed02431897aff0c2c96c68 
---------------- --------------------------- 
         %stddev     %change         %stddev
             \          |                \  
     25.54           -15.7        9.87        fio.latency_1000us%
      9.23 ±  4%      +9.9       19.17        fio.latency_10us%
      9.58            +3.5       13.06 ±  2%  fio.latency_20us%
      0.31 ± 21%      +0.3        0.62 ± 11%  fio.latency_250us%
     31.76            -4.3       27.44        fio.latency_2ms%
      0.49 ± 29%      +2.1        2.62 ± 10%  fio.latency_4us%
      4.48            -2.0        2.50 ±  3%  fio.latency_500us%
      1.29 ±  5%      +0.4        1.64 ± 15%  fio.latency_50us%
     16.58            +5.5       22.06        fio.latency_750us%
    274.60           -22.6%     212.58        fio.time.elapsed_time
    274.60           -22.6%     212.58        fio.time.elapsed_time.max
      4151           -25.2%       3103 ±  3%  fio.time.involuntary_context_switches
     39815           -19.3%      32135 ±  2%  fio.time.minor_page_faults
    949.33           -10.6%     848.83        fio.time.percent_of_cpu_this_job_got
      2577           -31.1%       1774        fio.time.system_time
 1.044e+08           -31.4%   71667735        fio.time.voluntary_context_switches
    478.06           +29.3%     617.97        fio.write_bw_MBps
   1318912            -6.4%    1234261        fio.write_clat_90%_us
   1378986            -5.9%    1297066        fio.write_clat_95%_us
    778778           -23.0%     599675        fio.write_clat_mean_us
    122382           +29.3%     158201        fio.write_iops
    485.84            -2.2%     475.03        pmeter.Average_Active_Power
 2.374e+10           -21.6%   1.86e+10        cpuidle..time
 1.498e+08           -28.4%  1.072e+08        cpuidle..usage
     89.67            +1.3%      90.80        iostat.cpu.idle
     10.18           -11.4%       9.02        iostat.cpu.system
     81910 ± 15%     -29.1%      58108 ± 21%  meminfo.Active
      2072 ±  2%     -15.4%       1752 ±  2%  meminfo.Active(file)
    326.84           -19.2%     263.93        uptime.boot
     28026           -18.5%      22848        uptime.idle
    246.33           +22.1%     300.67 ±  5%  vmstat.io.bo
    748973           -11.5%     662479        vmstat.system.cs
      0.01 ±  2%      +0.0        0.01 ±  3%  mpstat.cpu.all.iowait%
      9.49            -1.1        8.35        mpstat.cpu.all.sys%
      0.14 ±  5%      +0.0        0.18 ±  5%  mpstat.cpu.all.usr%
    850.50 ± 22%     +48.1%       1259 ±  6%  numa-meminfo.node0.Active(file)
    833.17 ± 89%   +1557.5%      13809 ±  3%  numa-meminfo.node0.Inactive(file)
     75084 ± 11%     -31.1%      51711 ± 18%  numa-meminfo.node1.Active
     73861 ± 11%     -30.6%      51230 ± 19%  numa-meminfo.node1.Active(anon)
      1222 ± 15%     -60.7%     480.00 ± 23%  numa-meminfo.node1.Active(file)
     96944 ± 20%     +80.8%     175278 ± 30%  numa-meminfo.node1.Inactive
     83244 ± 24%    +110.2%     174993 ± 30%  numa-meminfo.node1.Inactive(anon)
     13700 ±  5%     -97.9%     284.67 ± 43%  numa-meminfo.node1.Inactive(file)
     25892 ± 33%     +84.7%      47819 ± 26%  numa-meminfo.node1.Mapped
    517.00 ±  2%     -15.9%     434.67 ±  3%  proc-vmstat.nr_active_file
     72537            +2.2%      74150        proc-vmstat.nr_anon_pages
     17664           -13.5%      15278        proc-vmstat.nr_dirtied
      3057            +3.8%       3174        proc-vmstat.nr_page_table_pages
     16195            -9.3%      14686 ±  2%  proc-vmstat.nr_written
    517.00 ±  2%     -15.9%     434.67 ±  3%  proc-vmstat.nr_zone_active_file
   1222395 ±  3%     -14.6%    1043907 ±  5%  proc-vmstat.pgfault
     69030            -5.3%      65348 ±  4%  proc-vmstat.pgpgout
     59434           -20.0%      47550        proc-vmstat.pgreuse
    375.33            -9.4%     340.17        turbostat.Avg_MHz
     11.81            -1.1       10.72        turbostat.Busy%
    803952 ±  4%     -20.1%     642465 ± 11%  turbostat.C1
 1.474e+08           -28.6%  1.052e+08        turbostat.C1E
     63.17 ±  3%     +11.6%      70.50 ±  3%  turbostat.CoreTmp
  56497141           -22.1%   44010000        turbostat.IRQ
    222267           -27.2%     161739 ±  2%  turbostat.POLL
      0.05            -0.0        0.04        turbostat.POLL%
     63.33 ±  3%     +11.6%      70.67 ±  3%  turbostat.PkgTmp
    206.89            +2.5%     212.16        turbostat.RAMWatt
    211.00 ± 22%     +49.3%     315.00 ±  6%  numa-vmstat.node0.nr_active_file
      1852 ± 53%    +352.7%       8387 ±  5%  numa-vmstat.node0.nr_dirtied
    208.67 ± 89%   +1552.1%       3447 ±  3%  numa-vmstat.node0.nr_inactive_file
      1806 ± 54%    +360.4%       8317 ±  5%  numa-vmstat.node0.nr_written
    211.00 ± 22%     +49.3%     315.00 ±  6%  numa-vmstat.node0.nr_zone_active_file
    208.67 ± 89%   +1552.1%       3447 ±  3%  numa-vmstat.node0.nr_zone_inactive_file
    304.17 ± 15%     -60.3%     120.83 ± 23%  numa-vmstat.node1.nr_active_file
      8877 ± 11%     -92.1%     700.00 ± 80%  numa-vmstat.node1.nr_dirtied
     20207 ± 25%    +115.1%      43458 ± 29%  numa-vmstat.node1.nr_inactive_anon
      3424 ±  5%     -97.9%      70.83 ± 44%  numa-vmstat.node1.nr_inactive_file
      8813 ± 11%     -92.5%     663.83 ± 83%  numa-vmstat.node1.nr_written
    304.17 ± 15%     -60.3%     120.83 ± 23%  numa-vmstat.node1.nr_zone_active_file
     20208 ± 25%    +115.1%      43458 ± 29%  numa-vmstat.node1.nr_zone_inactive_anon
      3424 ±  5%     -97.9%      70.83 ± 44%  numa-vmstat.node1.nr_zone_inactive_file
 1.698e+09            +3.7%  1.761e+09 ±  2%  perf-stat.i.branch-instructions
  43843771            +4.5%   45825714        perf-stat.i.cache-misses
    757981           -11.3%     672443        perf-stat.i.context-switches
      4.42           -13.3%       3.83        perf-stat.i.cpi
  3.73e+10            -9.6%  3.373e+10        perf-stat.i.cpu-cycles
 2.303e+09            +4.8%  2.413e+09        perf-stat.i.dTLB-loads
 1.214e+09            +6.4%  1.292e+09        perf-stat.i.dTLB-stores
 8.441e+09            +4.5%  8.819e+09        perf-stat.i.instructions
      0.23           +15.6%       0.27        perf-stat.i.ipc
     18.63           +29.2%      24.08        perf-stat.i.major-faults
      0.39            -9.6%       0.35        perf-stat.i.metric.GHz
     55.76            +4.7%      58.39        perf-stat.i.metric.M/sec
    309205 ±  3%     +10.9%     342860 ±  3%  perf-stat.i.node-loads
   6312089            +4.1%    6571951 ±  2%  perf-stat.i.node-store-misses
      4.42           -13.4%       3.83        perf-stat.overall.cpi
    850.93           -13.5%     736.28        perf-stat.overall.cycles-between-cache-misses
      0.23           +15.5%       0.26        perf-stat.overall.ipc
     69450           -19.1%      56170        perf-stat.overall.path-length
 1.691e+09            +3.6%  1.752e+09 ±  2%  perf-stat.ps.branch-instructions
  43679256            +4.4%   45604378        perf-stat.ps.cache-misses
    755089           -11.4%     669172        perf-stat.ps.context-switches
 3.716e+10            -9.7%  3.357e+10        perf-stat.ps.cpu-cycles
 2.295e+09            +4.7%  2.402e+09        perf-stat.ps.dTLB-loads
  1.21e+09            +6.3%  1.286e+09        perf-stat.ps.dTLB-stores
  8.41e+09            +4.4%  8.778e+09        perf-stat.ps.instructions
     18.53           +29.1%      23.92        perf-stat.ps.major-faults
    308133 ±  3%     +10.8%     341314 ±  3%  perf-stat.ps.node-loads
   6288209            +4.0%    6540203 ±  2%  perf-stat.ps.node-store-misses
  2.33e+12           -19.1%  1.885e+12        perf-stat.total.instructions
     21.14            -7.8       13.34        perf-profile.calltrace.cycles-pp.btrfs_search_slot.btrfs_truncate_inode_items.btrfs_setsize.btrfs_setattr.notify_change
     17.67            -7.6       10.11 ±  2%  perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irq.rwsem_down_read_slowpath.__btrfs_tree_read_lock.btrfs_read_lock_root_node
     24.00            -7.5       16.50        perf-profile.calltrace.cycles-pp.btrfs_truncate_inode_items.btrfs_setsize.btrfs_setattr.notify_change.do_truncate
     18.11            -7.4       10.71 ±  2%  perf-profile.calltrace.cycles-pp._raw_spin_lock_irq.rwsem_down_read_slowpath.__btrfs_tree_read_lock.btrfs_read_lock_root_node.btrfs_search_slot
      5.86            -4.8        1.05 ±  2%  perf-profile.calltrace.cycles-pp.__btrfs_tree_read_lock.btrfs_read_lock_root_node.btrfs_search_slot.btrfs_lookup_file_extent.btrfs_get_extent
      5.96            -4.8        1.18 ±  2%  perf-profile.calltrace.cycles-pp.btrfs_read_lock_root_node.btrfs_search_slot.btrfs_lookup_file_extent.btrfs_get_extent.btrfs_cont_expand
      5.61            -4.6        0.97 ±  3%  perf-profile.calltrace.cycles-pp.__btrfs_tree_read_lock.btrfs_read_lock_root_node.btrfs_search_slot.btrfs_truncate_inode_items.btrfs_setsize
      5.74            -4.6        1.11 ±  2%  perf-profile.calltrace.cycles-pp.btrfs_read_lock_root_node.btrfs_search_slot.btrfs_truncate_inode_items.btrfs_setsize.btrfs_setattr
      5.41            -4.5        0.89 ±  2%  perf-profile.calltrace.cycles-pp.rwsem_down_read_slowpath.__btrfs_tree_read_lock.btrfs_read_lock_root_node.btrfs_search_slot.btrfs_truncate_inode_items
      7.12            -4.1        3.00        perf-profile.calltrace.cycles-pp.btrfs_lookup_file_extent.btrfs_get_extent.btrfs_cont_expand.btrfs_setsize.btrfs_setattr
      7.11            -4.1        2.99        perf-profile.calltrace.cycles-pp.btrfs_search_slot.btrfs_lookup_file_extent.btrfs_get_extent.btrfs_cont_expand.btrfs_setsize
      7.89 ±  2%      -3.9        3.97        perf-profile.calltrace.cycles-pp.btrfs_get_extent.btrfs_cont_expand.btrfs_setsize.btrfs_setattr.notify_change
     14.14 ±  2%      -3.5       10.61 ±  2%  perf-profile.calltrace.cycles-pp.rwsem_down_write_slowpath.__btrfs_tree_lock.btrfs_lock_root_node.btrfs_search_slot.btrfs_truncate_inode_items
     14.35 ±  2%      -3.5       10.86 ±  2%  perf-profile.calltrace.cycles-pp.__btrfs_tree_lock.btrfs_lock_root_node.btrfs_search_slot.btrfs_truncate_inode_items.btrfs_setsize
     14.40 ±  2%      -3.5       10.91 ±  2%  perf-profile.calltrace.cycles-pp.btrfs_lock_root_node.btrfs_search_slot.btrfs_truncate_inode_items.btrfs_setsize.btrfs_setattr
     10.27            -2.4        7.83        perf-profile.calltrace.cycles-pp.rwsem_down_read_slowpath.__btrfs_tree_read_lock.btrfs_read_lock_root_node.btrfs_search_slot.btrfs_lookup_file_extent
     77.81            -1.1       76.68        perf-profile.calltrace.cycles-pp.do_truncate.do_sys_ftruncate.do_syscall_64.entry_SYSCALL_64_after_hwframe.ftruncate64
     77.91            -1.1       76.81        perf-profile.calltrace.cycles-pp.do_sys_ftruncate.do_syscall_64.entry_SYSCALL_64_after_hwframe.ftruncate64
     77.98            -1.1       76.90        perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.ftruncate64
     78.01            -1.1       76.95        perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.ftruncate64
     78.31            -1.0       77.27        perf-profile.calltrace.cycles-pp.ftruncate64
      0.67            -0.1        0.56 ±  3%  perf-profile.calltrace.cycles-pp.rwsem_spin_on_owner.rwsem_down_write_slowpath.__btrfs_tree_lock.btrfs_lock_root_node.btrfs_search_slot
      0.55 ±  3%      +0.0        0.60 ±  4%  perf-profile.calltrace.cycles-pp.irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter
      0.58 ±  5%      +0.1        0.67 ±  3%  perf-profile.calltrace.cycles-pp.__hrtimer_run_queues.hrtimer_interrupt.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt
      0.61 ±  3%      +0.2        0.76 ±  4%  perf-profile.calltrace.cycles-pp.try_to_wake_up.wake_up_q.rwsem_wake.btrfs_unlock_up_safe.btrfs_search_slot
      0.64 ±  3%      +0.2        0.80 ±  4%  perf-profile.calltrace.cycles-pp.wake_up_q.rwsem_wake.btrfs_unlock_up_safe.btrfs_search_slot.btrfs_insert_empty_items
      0.68 ±  5%      +0.2        0.87 ±  3%  perf-profile.calltrace.cycles-pp.btrfs_del_items.btrfs_truncate_inode_items.btrfs_setsize.btrfs_setattr.notify_change
      0.87 ±  3%      +0.3        1.20 ±  3%  perf-profile.calltrace.cycles-pp.rwsem_wake.btrfs_unlock_up_safe.btrfs_search_slot.btrfs_insert_empty_items.btrfs_insert_file_extent
      0.59 ±  3%      +0.3        0.92 ± 30%  perf-profile.calltrace.cycles-pp.start_transaction.btrfs_setsize.btrfs_setattr.notify_change.do_truncate
      0.73 ±  5%      +0.3        1.06 ±  4%  perf-profile.calltrace.cycles-pp.memmove.memcpy_extent_buffer.setup_items_for_insert.btrfs_insert_empty_items.btrfs_insert_file_extent
      0.91 ±  3%      +0.3        1.26 ±  3%  perf-profile.calltrace.cycles-pp.btrfs_unlock_up_safe.btrfs_search_slot.btrfs_insert_empty_items.btrfs_insert_file_extent.btrfs_cont_expand
      0.78 ±  6%      +0.4        1.14 ±  4%  perf-profile.calltrace.cycles-pp.memcpy_extent_buffer.setup_items_for_insert.btrfs_insert_empty_items.btrfs_insert_file_extent.btrfs_cont_expand
     11.54 ±  2%      +0.4       11.96        perf-profile.calltrace.cycles-pp.intel_idle.cpuidle_enter_state.cpuidle_enter.do_idle.cpu_startup_entry
      0.56 ±  3%      +0.5        1.08 ± 14%  perf-profile.calltrace.cycles-pp.btrfs_dirty_inode.btrfs_setattr.notify_change.do_truncate.do_sys_ftruncate
      0.08 ±223%      +0.5        0.63 ±  3%  perf-profile.calltrace.cycles-pp.btrfs_get_token_32.setup_items_for_insert.btrfs_insert_empty_items.btrfs_insert_file_extent.btrfs_cont_expand
      0.00            +0.5        0.55 ±  3%  perf-profile.calltrace.cycles-pp.schedule.rwsem_down_write_slowpath.__btrfs_tree_lock.btrfs_lock_root_node.btrfs_search_slot
     14.93 ±  2%      +0.6       15.55 ±  2%  perf-profile.calltrace.cycles-pp.cpuidle_enter_state.cpuidle_enter.do_idle.cpu_startup_entry.start_secondary
     15.22 ±  2%      +0.7       15.88 ±  2%  perf-profile.calltrace.cycles-pp.cpuidle_enter.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
      1.63 ±  5%      +0.7        2.29 ±  3%  perf-profile.calltrace.cycles-pp.setup_items_for_insert.btrfs_insert_empty_items.btrfs_insert_file_extent.btrfs_cont_expand.btrfs_setsize
     20.42 ±  2%      +0.8       21.22        perf-profile.calltrace.cycles-pp.secondary_startup_64_no_verify
     20.12 ±  2%      +0.8       20.93        perf-profile.calltrace.cycles-pp.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
     20.19 ±  2%      +0.8       20.99        perf-profile.calltrace.cycles-pp.start_secondary.secondary_startup_64_no_verify
     20.18 ±  2%      +0.8       20.98        perf-profile.calltrace.cycles-pp.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
      3.79 ±  3%      +1.2        5.04 ±  2%  perf-profile.calltrace.cycles-pp.rwsem_down_read_slowpath.__btrfs_tree_read_lock.btrfs_read_lock_root_node.btrfs_search_slot.btrfs_insert_empty_items
      4.00 ±  2%      +1.3        5.32 ±  2%  perf-profile.calltrace.cycles-pp.__btrfs_tree_read_lock.btrfs_read_lock_root_node.btrfs_search_slot.btrfs_insert_empty_items.btrfs_insert_file_extent
      4.11 ±  3%      +1.4        5.47 ±  2%  perf-profile.calltrace.cycles-pp.btrfs_read_lock_root_node.btrfs_search_slot.btrfs_insert_empty_items.btrfs_insert_file_extent.btrfs_cont_expand
     15.63 ±  2%      +1.9       17.51        perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irq.rwsem_down_write_slowpath.__btrfs_tree_lock.btrfs_lock_root_node
     16.14            +1.9       18.06        perf-profile.calltrace.cycles-pp._raw_spin_lock_irq.rwsem_down_write_slowpath.__btrfs_tree_lock.btrfs_lock_root_node.btrfs_search_slot
      4.85            +2.3        7.14        perf-profile.calltrace.cycles-pp.__btrfs_tree_read_lock.btrfs_read_lock_root_node.btrfs_search_slot.btrfs_lookup_file_extent.btrfs_drop_extents
      4.97 ±  2%      +2.3        7.29        perf-profile.calltrace.cycles-pp.btrfs_read_lock_root_node.btrfs_search_slot.btrfs_lookup_file_extent.btrfs_drop_extents.btrfs_cont_expand
      6.14            +2.9        9.02        perf-profile.calltrace.cycles-pp.btrfs_search_slot.btrfs_lookup_file_extent.btrfs_drop_extents.btrfs_cont_expand.btrfs_setsize
      6.15            +2.9        9.04        perf-profile.calltrace.cycles-pp.btrfs_lookup_file_extent.btrfs_drop_extents.btrfs_cont_expand.btrfs_setsize.btrfs_setattr
     72.34            +3.1       75.38        perf-profile.calltrace.cycles-pp.btrfs_setsize.btrfs_setattr.notify_change.do_truncate.do_sys_ftruncate
      6.84            +3.1        9.96        perf-profile.calltrace.cycles-pp.btrfs_drop_extents.btrfs_cont_expand.btrfs_setsize.btrfs_setattr.notify_change
     73.03            +3.6       76.62        perf-profile.calltrace.cycles-pp.notify_change.do_truncate.do_sys_ftruncate.do_syscall_64.entry_SYSCALL_64_after_hwframe
     72.95            +3.6       76.55        perf-profile.calltrace.cycles-pp.btrfs_setattr.notify_change.do_truncate.do_sys_ftruncate.do_syscall_64
     21.84 ±  2%      +6.9       28.79        perf-profile.calltrace.cycles-pp.rwsem_down_write_slowpath.__btrfs_tree_lock.btrfs_lock_root_node.btrfs_search_slot.btrfs_insert_empty_items
     22.01 ±  2%      +7.0       29.02        perf-profile.calltrace.cycles-pp.__btrfs_tree_lock.btrfs_lock_root_node.btrfs_search_slot.btrfs_insert_empty_items.btrfs_insert_file_extent
     22.05 ±  2%      +7.0       29.08        perf-profile.calltrace.cycles-pp.btrfs_lock_root_node.btrfs_search_slot.btrfs_insert_empty_items.btrfs_insert_file_extent.btrfs_cont_expand
     27.98            +9.1       37.05        perf-profile.calltrace.cycles-pp.btrfs_search_slot.btrfs_insert_empty_items.btrfs_insert_file_extent.btrfs_cont_expand.btrfs_setsize
     46.10            +9.5       55.63        perf-profile.calltrace.cycles-pp.btrfs_cont_expand.btrfs_setsize.btrfs_setattr.notify_change.do_truncate
     29.65            +9.8       39.40        perf-profile.calltrace.cycles-pp.btrfs_insert_empty_items.btrfs_insert_file_extent.btrfs_cont_expand.btrfs_setsize.btrfs_setattr
     29.89            +9.8       39.70        perf-profile.calltrace.cycles-pp.btrfs_insert_file_extent.btrfs_cont_expand.btrfs_setsize.btrfs_setattr.notify_change
     24.00            -7.5       16.51        perf-profile.children.cycles-pp.btrfs_truncate_inode_items
     23.01            -7.4       15.61        perf-profile.children.cycles-pp.btrfs_read_lock_root_node
     22.50            -7.4       15.13        perf-profile.children.cycles-pp.__btrfs_tree_read_lock
     21.42            -7.1       14.32        perf-profile.children.cycles-pp.rwsem_down_read_slowpath
     34.64            -4.8       29.83        perf-profile.children.cycles-pp._raw_spin_lock_irq
     34.32 ±  2%      -4.3       30.00 ±  2%  perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
     67.15            -4.1       63.10        perf-profile.children.cycles-pp.btrfs_search_slot
      7.90 ±  2%      -3.9        3.98        perf-profile.children.cycles-pp.btrfs_get_extent
     13.27            -1.2       12.04        perf-profile.children.cycles-pp.btrfs_lookup_file_extent
     77.81            -1.1       76.69        perf-profile.children.cycles-pp.do_truncate
     77.91            -1.1       76.82        perf-profile.children.cycles-pp.do_sys_ftruncate
     78.22            -1.1       77.15        perf-profile.children.cycles-pp.do_syscall_64
     78.25            -1.1       77.19        perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
     78.33            -1.0       77.30        perf-profile.children.cycles-pp.ftruncate64
      1.43            -0.3        1.14 ±  3%  perf-profile.children.cycles-pp.generic_bin_search
      1.03 ±  2%      -0.3        0.76 ±  3%  perf-profile.children.cycles-pp.down_read
      1.00 ±  2%      -0.2        0.82        perf-profile.children.cycles-pp.up_read
      2.49 ±  2%      -0.2        2.31 ±  3%  perf-profile.children.cycles-pp.btrfs_free_path
      1.61            -0.2        1.45        perf-profile.children.cycles-pp.read_block_for_search
      2.66 ±  2%      -0.1        2.55 ±  2%  perf-profile.children.cycles-pp.btrfs_release_path
      0.59 ±  3%      -0.1        0.51 ±  3%  perf-profile.children.cycles-pp.btrfs_get_64
      0.69 ±  2%      -0.1        0.63 ±  3%  perf-profile.children.cycles-pp.btrfs_root_node
      0.74 ±  2%      -0.0        0.70        perf-profile.children.cycles-pp.pick_next_task_fair
      0.06 ±  7%      +0.0        0.08 ±  6%  perf-profile.children.cycles-pp.sysvec_call_function_single
      0.08            +0.0        0.10 ±  5%  perf-profile.children.cycles-pp.asm_sysvec_call_function_single
      0.05 ±  7%      +0.0        0.07 ±  8%  perf-profile.children.cycles-pp.syscall_exit_to_user_mode
      0.04 ± 44%      +0.0        0.06 ±  7%  perf-profile.children.cycles-pp.btrfs_inode_safe_disk_i_size_write
      0.29 ±  2%      +0.0        0.31 ±  3%  perf-profile.children.cycles-pp.sched_clock_cpu
      0.07            +0.0        0.09 ± 10%  perf-profile.children.cycles-pp.__cond_resched
      0.06 ±  6%      +0.0        0.08 ±  8%  perf-profile.children.cycles-pp.btrfs_leaf_free_space
      0.08 ±  8%      +0.0        0.10 ±  4%  perf-profile.children.cycles-pp.leaf_space_used
      0.07 ± 12%      +0.0        0.10 ±  9%  perf-profile.children.cycles-pp.fill_stack_inode_item
      0.10 ±  6%      +0.0        0.12 ±  8%  perf-profile.children.cycles-pp.__lookup_extent_mapping
      0.17 ±  5%      +0.0        0.20 ±  2%  perf-profile.children.cycles-pp.native_irq_return_iret
      0.08 ± 12%      +0.0        0.10 ± 10%  perf-profile.children.cycles-pp.copy_pages
      0.09 ±  7%      +0.0        0.12 ±  9%  perf-profile.children.cycles-pp.alloc_extent_state
      0.07 ±  7%      +0.0        0.09 ± 11%  perf-profile.children.cycles-pp.free_extent_map
      0.07 ±  5%      +0.0        0.10 ± 10%  perf-profile.children.cycles-pp.btrfs_block_rsv_migrate
      0.09 ±  4%      +0.0        0.12 ±  3%  perf-profile.children.cycles-pp.memset_erms
      0.11 ± 10%      +0.0        0.14 ±  3%  perf-profile.children.cycles-pp.btrfs_get_32
      0.18 ±  2%      +0.0        0.21 ±  6%  perf-profile.children.cycles-pp.__might_resched
      0.10 ±  5%      +0.0        0.13 ±  4%  perf-profile.children.cycles-pp.clear_extent_bit
      0.07 ±  9%      +0.0        0.11 ±  8%  perf-profile.children.cycles-pp.get_io_u
      0.10 ±  6%      +0.0        0.14 ±  2%  perf-profile.children.cycles-pp.up_write
      0.14 ±  7%      +0.0        0.17 ±  2%  perf-profile.children.cycles-pp.btrfs_mark_buffer_dirty
      0.09 ±  5%      +0.0        0.12 ±  4%  perf-profile.children.cycles-pp.clear_state_bit
      0.15 ±  6%      +0.0        0.19 ±  8%  perf-profile.children.cycles-pp.kmem_cache_free
      0.54 ±  3%      +0.0        0.59 ±  5%  perf-profile.children.cycles-pp.__softirqentry_text_start
      0.11 ±  6%      +0.0        0.15 ±  3%  perf-profile.children.cycles-pp.btrfs_inode_clear_file_extent_range
      0.08 ±  6%      +0.0        0.12 ±  5%  perf-profile.children.cycles-pp.fio_gettime
      0.36 ±  3%      +0.0        0.41 ±  2%  perf-profile.children.cycles-pp.read_extent_buffer
      0.61 ±  3%      +0.0        0.66 ±  4%  perf-profile.children.cycles-pp.irq_exit_rcu
      0.02 ±142%      +0.1        0.08 ±  6%  perf-profile.children.cycles-pp.ktime_get_real_ts64
      0.07 ± 12%      +0.1        0.13 ±  4%  perf-profile.children.cycles-pp.btrfs_put_transaction
      0.16 ±  5%      +0.1        0.22 ±  5%  perf-profile.children.cycles-pp.alloc_extent_map
      0.17 ±  6%      +0.1        0.24 ±  7%  perf-profile.children.cycles-pp.__reserve_bytes
      0.44 ±  6%      +0.1        0.51 ±  6%  perf-profile.children.cycles-pp.tick_sched_timer
      0.24 ±  4%      +0.1        0.31 ±  5%  perf-profile.children.cycles-pp.check_setget_bounds
      0.32 ±  7%      +0.1        0.40 ±  2%  perf-profile.children.cycles-pp.memmove_extent_buffer
      0.18 ±  3%      +0.1        0.26 ±  4%  perf-profile.children.cycles-pp.btrfs_block_rsv_add_bytes
      0.25 ±  5%      +0.1        0.34 ±  4%  perf-profile.children.cycles-pp.wake_q_add
      0.21 ±  5%      +0.1        0.30 ±  4%  perf-profile.children.cycles-pp.__clear_extent_bit
      0.21 ±  4%      +0.1        0.30 ±  4%  perf-profile.children.cycles-pp.btrfs_reserve_metadata_bytes
      0.69 ±  4%      +0.1        0.78 ±  3%  perf-profile.children.cycles-pp.__hrtimer_run_queues
      0.70 ±  2%      +0.1        0.80 ±  3%  perf-profile.children.cycles-pp.rwsem_mark_wake
      0.41 ±  2%      +0.1        0.50 ±  3%  perf-profile.children.cycles-pp.kmem_cache_alloc
      0.18 ±  5%      +0.1        0.28 ±  3%  perf-profile.children.cycles-pp.mutex_lock
      0.99            +0.1        1.09 ±  2%  perf-profile.children.cycles-pp.rwsem_spin_on_owner
      0.22 ±  6%      +0.1        0.32 ±  3%  perf-profile.children.cycles-pp.btrfs_set_token_32
      0.46 ±  4%      +0.1        0.56        perf-profile.children.cycles-pp.down_write
      0.20 ±  6%      +0.1        0.31 ±  6%  perf-profile.children.cycles-pp.btrfs_update_root_times
      0.41 ±  2%      +0.1        0.54 ±  4%  perf-profile.children.cycles-pp.btrfs_drop_extent_cache
      0.37 ±  2%      +0.2        0.52 ±  4%  perf-profile.children.cycles-pp.btrfs_block_rsv_add
      2.61            +0.2        2.79 ±  2%  perf-profile.children.cycles-pp.wake_up_q
      0.34 ±  8%      +0.2        0.52 ±  7%  perf-profile.children.cycles-pp.mutex_unlock
      0.69 ±  5%      +0.2        0.89 ±  2%  perf-profile.children.cycles-pp.btrfs_del_items
      0.18 ±  4%      +0.2        0.38 ± 78%  perf-profile.children.cycles-pp.wait_current_trans
      0.67 ±  5%      +0.2        0.88 ±  2%  perf-profile.children.cycles-pp.btrfs_get_token_32
      0.22 ±  5%      +0.2        0.46 ±  4%  perf-profile.children.cycles-pp.btrfs_trans_release_metadata
      0.28 ±  3%      +0.2        0.53 ± 26%  perf-profile.children.cycles-pp.join_transaction
      0.59 ±  2%      +0.3        0.84 ±  3%  perf-profile.children.cycles-pp._raw_spin_lock_irqsave
      0.24 ±  5%      +0.3        0.49 ±  4%  perf-profile.children.cycles-pp.btrfs_block_rsv_release
      0.92 ±  2%      +0.3        1.26 ±  2%  perf-profile.children.cycles-pp.btrfs_unlock_up_safe
      3.17 ±  2%      +0.4        3.52 ±  2%  perf-profile.children.cycles-pp.rwsem_wake
      0.88 ±  6%      +0.4        1.28 ±  4%  perf-profile.children.cycles-pp.memcpy_extent_buffer
     11.72 ±  2%      +0.4       12.15        perf-profile.children.cycles-pp.intel_idle
      1.10 ±  5%      +0.4        1.54 ±  3%  perf-profile.children.cycles-pp.memmove
      0.48 ±  4%      +0.4        0.93 ±  3%  perf-profile.children.cycles-pp.__btrfs_end_transaction
      0.56 ±  4%      +0.5        1.09 ± 14%  perf-profile.children.cycles-pp.btrfs_dirty_inode
     15.41 ±  2%      +0.7       16.06 ±  2%  perf-profile.children.cycles-pp.cpuidle_enter
     15.38 ±  2%      +0.7       16.03 ±  2%  perf-profile.children.cycles-pp.cpuidle_enter_state
      1.66 ±  5%      +0.7        2.33 ±  3%  perf-profile.children.cycles-pp.setup_items_for_insert
      1.12            +0.7        1.83 ± 24%  perf-profile.children.cycles-pp.start_transaction
     20.41 ±  2%      +0.8       21.20        perf-profile.children.cycles-pp.do_idle
     20.42 ±  2%      +0.8       21.22        perf-profile.children.cycles-pp.secondary_startup_64_no_verify
     20.42 ±  2%      +0.8       21.22        perf-profile.children.cycles-pp.cpu_startup_entry
     20.19 ±  2%      +0.8       20.99        perf-profile.children.cycles-pp.start_secondary
     72.34            +3.1       75.40        perf-profile.children.cycles-pp.btrfs_setsize
      6.85            +3.1        9.96        perf-profile.children.cycles-pp.btrfs_drop_extents
     36.09 ±  2%      +3.5       39.62        perf-profile.children.cycles-pp.rwsem_down_write_slowpath
     36.46 ±  2%      +3.5       40.00        perf-profile.children.cycles-pp.btrfs_lock_root_node
     72.96            +3.6       76.55        perf-profile.children.cycles-pp.btrfs_setattr
     73.03            +3.6       76.63        perf-profile.children.cycles-pp.notify_change
     36.52 ±  2%      +3.6       40.16        perf-profile.children.cycles-pp.__btrfs_tree_lock
     46.11            +9.5       55.64        perf-profile.children.cycles-pp.btrfs_cont_expand
     29.65            +9.7       39.40        perf-profile.children.cycles-pp.btrfs_insert_empty_items
     29.89            +9.8       39.70        perf-profile.children.cycles-pp.btrfs_insert_file_extent
     34.31 ±  2%      -4.3       29.99 ±  2%  perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
      1.24            -0.3        0.96 ±  3%  perf-profile.self.cycles-pp.generic_bin_search
      0.98 ±  2%      -0.3        0.72 ±  3%  perf-profile.self.cycles-pp.down_read
      1.27 ±  2%      -0.2        1.03 ±  2%  perf-profile.self.cycles-pp.rwsem_down_read_slowpath
      0.99 ±  2%      -0.2        0.81        perf-profile.self.cycles-pp.up_read
      1.74            -0.1        1.61        perf-profile.self.cycles-pp.btrfs_search_slot
      0.48 ±  2%      -0.1        0.40 ±  3%  perf-profile.self.cycles-pp.btrfs_get_64
      1.01 ±  2%      -0.1        0.95 ±  3%  perf-profile.self.cycles-pp._raw_spin_lock_irq
      0.68 ±  3%      -0.1        0.63 ±  3%  perf-profile.self.cycles-pp.btrfs_root_node
      0.05            +0.0        0.07 ±  7%  perf-profile.self.cycles-pp.btrfs_drop_extent_cache
      0.08 ±  7%      +0.0        0.10 ±  7%  perf-profile.self.cycles-pp.schedule
      0.21 ±  4%      +0.0        0.23 ±  3%  perf-profile.self.cycles-pp.read_tsc
      0.07 ± 11%      +0.0        0.09 ±  8%  perf-profile.self.cycles-pp.btrfs_setsize
      0.17 ±  5%      +0.0        0.20 ±  2%  perf-profile.self.cycles-pp.try_to_wake_up
      0.17 ±  5%      +0.0        0.20 ±  2%  perf-profile.self.cycles-pp.native_irq_return_iret
      0.07 ± 11%      +0.0        0.10 ±  9%  perf-profile.self.cycles-pp.setup_items_for_insert
      0.08 ± 12%      +0.0        0.10 ± 10%  perf-profile.self.cycles-pp.copy_pages
      0.06 ± 13%      +0.0        0.09 ±  8%  perf-profile.self.cycles-pp.btrfs_cont_expand
      0.06 ±  7%      +0.0        0.09 ± 11%  perf-profile.self.cycles-pp.free_extent_map
      0.09            +0.0        0.12 ±  3%  perf-profile.self.cycles-pp.memset_erms
      0.08 ± 13%      +0.0        0.11 ±  5%  perf-profile.self.cycles-pp.__btrfs_release_delayed_node
      0.10 ± 10%      +0.0        0.13 ±  6%  perf-profile.self.cycles-pp.btrfs_get_32
      0.16 ±  2%      +0.0        0.20 ±  6%  perf-profile.self.cycles-pp.__might_resched
      0.10 ±  6%      +0.0        0.14 ±  3%  perf-profile.self.cycles-pp.up_write
      0.07 ± 11%      +0.0        0.10 ±  9%  perf-profile.self.cycles-pp.get_io_u
      0.07 ±  6%      +0.0        0.11 ±  6%  perf-profile.self.cycles-pp.fio_gettime
      0.02 ±141%      +0.0        0.06 ±  8%  perf-profile.self.cycles-pp._raw_write_lock
      0.19 ±  3%      +0.0        0.23 ±  5%  perf-profile.self.cycles-pp.kmem_cache_alloc
      0.14 ±  8%      +0.0        0.18 ±  7%  perf-profile.self.cycles-pp.kmem_cache_free
      0.19 ±  7%      +0.0        0.24 ±  5%  perf-profile.self.cycles-pp.check_setget_bounds
      0.13 ±  6%      +0.0        0.18 ±  2%  perf-profile.self.cycles-pp.wake_up_q
      0.36 ±  2%      +0.0        0.40 ±  3%  perf-profile.self.cycles-pp.read_extent_buffer
      0.01 ±223%      +0.0        0.06 ±  9%  perf-profile.self.cycles-pp.btrfs_truncate_inode_items
      0.06 ±  8%      +0.0        0.10 ±  9%  perf-profile.self.cycles-pp.btrfs_block_rsv_release
      0.48 ±  4%      +0.1        0.53 ±  2%  perf-profile.self.cycles-pp.cpuidle_enter_state
      0.01 ±223%      +0.1        0.06 ±  7%  perf-profile.self.cycles-pp.btrfs_reserve_metadata_bytes
      0.08 ±  5%      +0.1        0.15 ±  4%  perf-profile.self.cycles-pp.btrfs_update_inode
      0.07 ±  7%      +0.1        0.13 ±  4%  perf-profile.self.cycles-pp.btrfs_put_transaction
      0.17 ±  6%      +0.1        0.25 ±  4%  perf-profile.self.cycles-pp.btrfs_set_token_32
      0.17 ±  4%      +0.1        0.25 ±  6%  perf-profile.self.cycles-pp.start_transaction
      0.14 ±  6%      +0.1        0.22 ±  5%  perf-profile.self.cycles-pp.mutex_lock
      0.25 ±  5%      +0.1        0.34 ±  4%  perf-profile.self.cycles-pp.wake_q_add
      0.38 ±  4%      +0.1        0.48 ±  2%  perf-profile.self.cycles-pp.down_write
      0.32 ±  4%      +0.1        0.41 ±  5%  perf-profile.self.cycles-pp._raw_spin_lock_irqsave
      0.97 ±  2%      +0.1        1.06 ±  2%  perf-profile.self.cycles-pp.rwsem_spin_on_owner
      0.18 ±  6%      +0.1        0.28 ±  3%  perf-profile.self.cycles-pp.join_transaction
      0.85 ±  3%      +0.1        0.96 ±  2%  perf-profile.self.cycles-pp.rwsem_down_write_slowpath
      0.16 ±  2%      +0.1        0.29 ±  2%  perf-profile.self.cycles-pp.__btrfs_end_transaction
      0.61 ±  5%      +0.2        0.79 ±  3%  perf-profile.self.cycles-pp.btrfs_get_token_32
      0.33 ±  8%      +0.2        0.52 ±  7%  perf-profile.self.cycles-pp.mutex_unlock
     11.69 ±  2%      +0.4       12.12        perf-profile.self.cycles-pp.intel_idle
      1.10 ±  5%      +0.4        1.53 ±  3%  perf-profile.self.cycles-pp.memmove
      1.63 ±  2%      +0.5        2.11 ±  2%  perf-profile.self.cycles-pp._raw_spin_lock




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://01.org/lkp



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