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Message-ID: <20210604051500.GC2227@xsang-OptiPlex-9020>
Date:   Fri, 4 Jun 2021 13:15:00 +0800
From:   kernel test robot <oliver.sang@...el.com>
To:     Dave Chinner <david@...morbit.com>
Cc:     0day robot <lkp@...el.com>,
        Chandan Babu R <chandanrlinux@...il.com>,
        "Darrick J. Wong" <djwong@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org,
        ying.huang@...el.com, feng.tang@...el.com,
        zhengjun.xing@...ux.intel.com, linux-xfs@...r.kernel.org
Subject: [xfs]  80d287de7b:  stress-ng.dir.ops_per_sec 80.1% improvement



Greeting,

FYI, we noticed a 80.1% improvement of stress-ng.dir.ops_per_sec due to commit:


commit: 80d287de7b49ed673418f4fb91a523c58c5bebf2 ("[PATCH 07/39] xfs: journal IO cache flush reductions")
url: https://github.com/0day-ci/linux/commits/Dave-Chinner/xfs-CIL-and-log-optimisations/20210603-134113
base: https://git.kernel.org/cgit/fs/xfs/xfs-linux.git for-next

in testcase: stress-ng
on test machine: 96 threads 2 sockets Intel(R) Xeon(R) Gold 6252 CPU @ 2.10GHz with 512G memory
with following parameters:

	nr_threads: 10%
	disk: 1HDD
	testtime: 60s
	fs: xfs
	class: filesystem
	test: dir
	cpufreq_governor: performance
	ucode: 0x5003006






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


To reproduce:

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        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
        bin/lkp run                    generated-yaml-file

=========================================================================================
class/compiler/cpufreq_governor/disk/fs/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime/ucode:
  filesystem/gcc-9/performance/1HDD/xfs/x86_64-rhel-8.3/10%/debian-10.4-x86_64-20200603.cgz/lkp-csl-2sp7/dir/stress-ng/60s/0x5003006

commit: 
  d5405b4dd5 ("xfs: remove need_start_rec parameter from xlog_write()")
  80d287de7b ("xfs: journal IO cache flush reductions")

d5405b4dd577ba9a 80d287de7b49ed673418f4fb91a 
---------------- --------------------------- 
         %stddev     %change         %stddev
             \          |                \  
   1482543           +80.1%    2669796 ±  6%  stress-ng.dir.ops
     24569           +80.1%      44248 ±  6%  stress-ng.dir.ops_per_sec
    713.83 ± 10%     +74.0%       1241 ±  6%  stress-ng.time.involuntary_context_switches
    204.83           +84.8%     378.50        stress-ng.time.percent_of_cpu_this_job_got
    124.81           +84.5%     230.26        stress-ng.time.system_time
   2619366           +82.1%    4770408 ±  4%  stress-ng.time.voluntary_context_switches
      1.72 ± 14%      +1.6        3.35 ±  5%  mpstat.cpu.all.sys%
    236.19           +15.9%     273.81 ±  2%  pmeter.Average_Active_Power
     96.31            -1.4%      94.95        iostat.cpu.idle
      3.51           +37.5%       4.82        iostat.cpu.system
      4568 ±  9%     +22.0%       5572 ±  6%  meminfo.Active
      3959 ±  3%     +27.8%       5061 ±  3%  meminfo.Active(anon)
    380393 ± 10%     +49.6%     569186 ± 14%  numa-numastat.node0.local_node
    457743 ±  5%     +39.2%     637259 ± 11%  numa-numastat.node0.numa_hit
     10063 ±  2%     +33.4%      13426 ±  5%  softirqs.BLOCK
      8625 ± 19%     +18.3%      10204 ±  4%  softirqs.CPU14.SCHED
      5410 ± 55%     +89.4%      10248 ±  3%  softirqs.CPU65.SCHED
  41612495           +79.6%   74744322 ±  5%  cpuidle.C1.time
   1407022           +80.2%    2535388 ±  9%  cpuidle.C1.usage
    322643 ±  8%     +52.7%     492813 ±  9%  cpuidle.POLL.time
     28413 ±  4%     +39.4%      39600 ±  8%  cpuidle.POLL.usage
     96.00            -1.7%      94.33        vmstat.cpu.id
      6494 ±  3%     +74.4%      11328 ±  6%  vmstat.io.bo
      2.00           +75.0%       3.50 ± 14%  vmstat.procs.r
     81184           +81.5%     147330 ±  4%  vmstat.system.cs
     97.17           +49.2%     145.00        turbostat.Avg_MHz
      4.87            +1.2        6.06 ±  2%  turbostat.Busy%
      2003           +19.9%       2402 ±  3%  turbostat.Bzy_MHz
   1402579           +80.4%    2530574 ±  9%  turbostat.C1
      0.67            +0.5        1.20 ±  5%  turbostat.C1%
     94.08            -2.0       92.07        turbostat.C1E%
     46.17           +10.5%      51.00        turbostat.PkgTmp
    112.71           +29.0%     145.38 ±  3%  turbostat.PkgWatt
    987.67 ±  3%     +27.7%       1261 ±  3%  proc-vmstat.nr_active_anon
      3894            +7.3%       4179        proc-vmstat.nr_shmem
    987.67 ±  3%     +27.7%       1261 ±  3%  proc-vmstat.nr_zone_active_anon
    657336           +29.0%     847751        proc-vmstat.numa_hit
    570584           +33.4%     761004 ±  2%  proc-vmstat.numa_local
      1419 ± 13%     +56.8%       2226 ± 12%  proc-vmstat.pgactivate
    914482 ±  3%     +31.0%    1197750 ±  2%  proc-vmstat.pgalloc_normal
    738528 ±  4%     +37.0%    1011485 ±  3%  proc-vmstat.pgfree
    429578 ±  2%     +74.9%     751447 ±  6%  proc-vmstat.pgpgout
      1282 ±  6%     +25.4%       1608 ± 12%  slabinfo.buffer_head.active_objs
      1282 ±  6%     +25.4%       1608 ± 12%  slabinfo.buffer_head.num_objs
     10382 ±  4%     -12.9%       9043 ±  3%  slabinfo.kmalloc-128.active_objs
     10533 ±  3%     -11.9%       9284 ±  3%  slabinfo.kmalloc-128.num_objs
    126328 ±  3%     -14.4%     108194 ±  3%  slabinfo.kmalloc-512.active_objs
    257974 ±  5%     +21.6%     313574 ±  9%  slabinfo.kmalloc-8.active_objs
    506.17 ±  5%     +21.4%     614.33 ±  9%  slabinfo.kmalloc-8.active_slabs
    259338 ±  5%     +21.4%     314774 ±  9%  slabinfo.kmalloc-8.num_objs
    506.17 ±  5%     +21.4%     614.33 ±  9%  slabinfo.kmalloc-8.num_slabs
     17113 ±  2%     +39.3%      23841 ±  6%  interrupts.315:PCI-MSI.376832-edge.ahci[0000:00:17.0]
     95405 ±  3%     +27.9%     122055 ±  6%  interrupts.CAL:Function_call_interrupts
      1021 ± 25%     +64.5%       1680 ± 22%  interrupts.CPU14.CAL:Function_call_interrupts
     81.83 ± 44%    +100.8%     164.33 ± 17%  interrupts.CPU14.RES:Rescheduling_interrupts
    734.33 ± 21%     +85.7%       1363 ± 47%  interrupts.CPU16.CAL:Function_call_interrupts
    936.83 ± 34%     +67.6%       1570 ± 21%  interrupts.CPU21.CAL:Function_call_interrupts
     74.67 ± 46%     +87.5%     140.00 ± 34%  interrupts.CPU21.RES:Rescheduling_interrupts
    990.50 ± 12%     +28.8%       1275 ± 10%  interrupts.CPU56.CAL:Function_call_interrupts
      1000 ± 25%     +88.2%       1882 ± 30%  interrupts.CPU65.CAL:Function_call_interrupts
     75.50 ± 34%    +171.3%     204.83 ± 58%  interrupts.CPU65.RES:Rescheduling_interrupts
      1180 ± 23%     +63.4%       1928 ± 31%  interrupts.CPU8.CAL:Function_call_interrupts
      1174 ± 27%     +96.3%       2305 ± 38%  interrupts.CPU9.CAL:Function_call_interrupts
     31436 ±  8%     +67.5%      52645 ±  7%  interrupts.NMI:Non-maskable_interrupts
     31436 ±  8%     +67.5%      52645 ±  7%  interrupts.PMI:Performance_monitoring_interrupts
      4741 ±  4%     +45.0%       6874 ± 13%  interrupts.RES:Rescheduling_interrupts
      4.00           -17.7%       3.29 ±  2%  perf-stat.i.MPKI
 2.268e+09           +70.7%  3.871e+09 ±  5%  perf-stat.i.branch-instructions
      0.84 ±  7%      -0.3        0.59 ±  3%  perf-stat.i.branch-miss-rate%
  13994599 ±  5%     +42.4%   19932596 ±  4%  perf-stat.i.branch-misses
   3478750          +137.0%    8243762 ± 67%  perf-stat.i.cache-misses
  40667842           +69.3%   68868679 ±  7%  perf-stat.i.cache-references
     84844           +81.4%     153896 ±  5%  perf-stat.i.context-switches
      1.24 ±  9%     -46.8%       0.66 ±  7%  perf-stat.i.cpi
 8.853e+09           +52.6%  1.351e+10        perf-stat.i.cpu-cycles
    111.43            +6.6%     118.78        perf-stat.i.cpu-migrations
      2619 ±  5%     -19.1%       2118 ± 27%  perf-stat.i.cycles-between-cache-misses
      0.01 ± 10%      -0.0        0.01 ±  4%  perf-stat.i.dTLB-load-miss-rate%
    177121 ±  6%     +93.5%     342763 ± 11%  perf-stat.i.dTLB-load-misses
 3.145e+09           +74.6%  5.492e+09 ±  6%  perf-stat.i.dTLB-loads
      0.00 ± 14%      -0.0        0.00 ±  5%  perf-stat.i.dTLB-store-miss-rate%
     20981 ± 14%     +41.5%      29678 ±  6%  perf-stat.i.dTLB-store-misses
 1.626e+09           +72.4%  2.804e+09 ±  5%  perf-stat.i.dTLB-stores
   4231356           +62.4%    6872280 ±  4%  perf-stat.i.iTLB-load-misses
   6324364           +60.3%   10139019 ±  4%  perf-stat.i.iTLB-loads
 1.222e+10           +71.5%  2.096e+10 ±  5%  perf-stat.i.instructions
      2568           +23.5%       3171        perf-stat.i.instructions-per-iTLB-miss
      1.15           +33.4%       1.54 ±  6%  perf-stat.i.ipc
      0.09           +52.6%       0.14        perf-stat.i.metric.GHz
    509.54           +70.8%     870.20 ±  3%  perf-stat.i.metric.K/sec
     73.36           +72.8%     126.75 ±  6%  perf-stat.i.metric.M/sec
    993104           +77.1%    1758681 ±  8%  perf-stat.i.node-loads
      0.62 ±  4%      -0.1        0.52 ±  4%  perf-stat.overall.branch-miss-rate%
      2545 ±  2%     -19.2%       2056 ± 30%  perf-stat.overall.cycles-between-cache-misses
      0.00 ± 14%      -0.0        0.00 ±  6%  perf-stat.overall.dTLB-store-miss-rate%
      2888            +5.5%       3048        perf-stat.overall.instructions-per-iTLB-miss
 2.233e+09           +70.6%  3.811e+09 ±  5%  perf-stat.ps.branch-instructions
  13776498 ±  5%     +42.4%   19620370 ±  4%  perf-stat.ps.branch-misses
   3424430          +136.9%    8113289 ± 67%  perf-stat.ps.cache-misses
  40038403           +69.3%   67785317 ±  7%  perf-stat.ps.cache-references
     83516           +81.4%     151470 ±  5%  perf-stat.ps.context-switches
 8.716e+09           +52.6%   1.33e+10        perf-stat.ps.cpu-cycles
    109.67            +6.6%     116.90        perf-stat.ps.cpu-migrations
    174387 ±  6%     +93.4%     337330 ± 11%  perf-stat.ps.dTLB-load-misses
 3.096e+09           +74.6%  5.406e+09 ±  6%  perf-stat.ps.dTLB-loads
     20649 ± 14%     +41.4%      29202 ±  6%  perf-stat.ps.dTLB-store-misses
 1.601e+09           +72.4%   2.76e+09 ±  5%  perf-stat.ps.dTLB-stores
   4165626           +62.4%    6764240 ±  4%  perf-stat.ps.iTLB-load-misses
   6225700           +60.3%    9979567 ±  4%  perf-stat.ps.iTLB-loads
 1.203e+10           +71.5%  2.063e+10 ±  5%  perf-stat.ps.instructions
    977553           +77.0%    1730599 ±  8%  perf-stat.ps.node-loads
 7.679e+11           +71.5%  1.317e+12 ±  5%  perf-stat.total.instructions
     55.09            -5.3       49.84        perf-profile.calltrace.cycles-pp.secondary_startup_64_no_verify
      8.68 ±  4%      -4.7        4.02 ± 17%  perf-profile.calltrace.cycles-pp.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter.do_idle.cpu_startup_entry
     53.42 ±  2%      -3.9       49.47        perf-profile.calltrace.cycles-pp.start_secondary.secondary_startup_64_no_verify
     53.41 ±  2%      -3.9       49.47        perf-profile.calltrace.cycles-pp.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
     53.38 ±  2%      -3.9       49.45        perf-profile.calltrace.cycles-pp.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
      7.08 ±  4%      -3.7        3.33 ± 14%  perf-profile.calltrace.cycles-pp.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter.do_idle
     49.39 ±  2%      -2.8       46.62        perf-profile.calltrace.cycles-pp.cpuidle_enter.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
      4.86 ±  6%      -2.6        2.23 ± 13%  perf-profile.calltrace.cycles-pp.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter
      4.81 ±  6%      -2.6        2.20 ± 13%  perf-profile.calltrace.cycles-pp.hrtimer_interrupt.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state
     48.61 ±  2%      -2.5       46.14        perf-profile.calltrace.cycles-pp.cpuidle_enter_state.cpuidle_enter.do_idle.cpu_startup_entry.start_secondary
      2.65 ± 13%      -1.1        1.57 ± 18%  perf-profile.calltrace.cycles-pp.menu_select.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
      2.23 ±  5%      -1.1        1.16 ± 11%  perf-profile.calltrace.cycles-pp.__hrtimer_run_queues.hrtimer_interrupt.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt
      1.77 ± 11%      -1.1        0.71 ± 22%  perf-profile.calltrace.cycles-pp.clockevents_program_event.hrtimer_interrupt.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt
      1.59 ±  5%      -0.8        0.77 ± 15%  perf-profile.calltrace.cycles-pp.tick_sched_timer.__hrtimer_run_queues.hrtimer_interrupt.__sysvec_apic_timer_interrupt.sysvec_apic_timer_interrupt
      1.21 ± 23%      -0.7        0.47 ± 79%  perf-profile.calltrace.cycles-pp.tick_nohz_next_event.tick_nohz_get_sleep_length.menu_select.do_idle.cpu_startup_entry
      1.37 ±  5%      -0.7        0.68 ± 17%  perf-profile.calltrace.cycles-pp.tick_sched_handle.tick_sched_timer.__hrtimer_run_queues.hrtimer_interrupt.__sysvec_apic_timer_interrupt
      1.48 ± 18%      -0.7        0.81 ± 25%  perf-profile.calltrace.cycles-pp.tick_nohz_get_sleep_length.menu_select.do_idle.cpu_startup_entry.start_secondary
      1.33 ±  6%      -0.7        0.65 ± 18%  perf-profile.calltrace.cycles-pp.update_process_times.tick_sched_handle.tick_sched_timer.__hrtimer_run_queues.hrtimer_interrupt
      0.97 ±  6%      -0.5        0.46 ± 44%  perf-profile.calltrace.cycles-pp.irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter
      0.85 ±  6%      -0.3        0.51 ± 70%  perf-profile.calltrace.cycles-pp.worker_thread.kthread.ret_from_fork
      0.85 ±  6%      -0.3        0.50 ± 70%  perf-profile.calltrace.cycles-pp.process_one_work.worker_thread.kthread.ret_from_fork
      0.91 ±  5%      -0.2        0.73 ± 18%  perf-profile.calltrace.cycles-pp.ret_from_fork
      0.91 ±  5%      -0.2        0.73 ± 18%  perf-profile.calltrace.cycles-pp.kthread.ret_from_fork
      0.64 ±  7%      +0.1        0.76 ±  5%  perf-profile.calltrace.cycles-pp.xfs_btree_lookup.xfs_check_agi_freecount.xfs_dialloc_ag.xfs_dir_ialloc.xfs_create
      0.84 ±  6%      +0.1        0.96 ±  4%  perf-profile.calltrace.cycles-pp.xlog_cil_insert_items.xfs_log_commit_cil.__xfs_trans_commit.xfs_remove.xfs_vn_unlink
      0.64 ±  4%      +0.1        0.77 ±  7%  perf-profile.calltrace.cycles-pp.xfs_trans_read_buf_map.xfs_read_agi.xfs_iunlink.xfs_remove.xfs_vn_unlink
      0.72 ± 11%      +0.1        0.85 ±  4%  perf-profile.calltrace.cycles-pp.xfs_dir2_leafn_lookup_for_entry.xfs_da3_node_lookup_int.xfs_dir2_node_removename.xfs_dir_removename.xfs_remove
      0.67 ±  3%      +0.1        0.80 ±  7%  perf-profile.calltrace.cycles-pp.xfs_read_agi.xfs_iunlink.xfs_remove.xfs_vn_unlink.vfs_rmdir
      0.74 ±  3%      +0.1        0.88 ±  8%  perf-profile.calltrace.cycles-pp.xfs_dir2_leafn_remove.xfs_dir2_node_removename.xfs_dir_removename.xfs_remove.xfs_vn_unlink
      0.77 ±  3%      +0.1        0.91 ±  7%  perf-profile.calltrace.cycles-pp.xfs_iunlink.xfs_remove.xfs_vn_unlink.vfs_rmdir.do_rmdir
      1.15 ±  3%      +0.2        1.32 ±  6%  perf-profile.calltrace.cycles-pp.xlog_cil_insert_items.xfs_log_commit_cil.__xfs_trans_commit.xfs_create.xfs_generic_create
      1.49 ±  4%      +0.2        1.66 ±  3%  perf-profile.calltrace.cycles-pp.xfs_btree_check_sblock.xfs_btree_get_rec.xfs_inobt_get_rec.xfs_check_agi_freecount.xfs_dialloc_ag
      0.44 ± 44%      +0.2        0.63 ±  7%  perf-profile.calltrace.cycles-pp.xfs_buf_get_map.xfs_buf_read_map.xfs_trans_read_buf_map.xfs_read_agi.xfs_iunlink
      0.94 ±  8%      +0.2        1.13 ±  5%  perf-profile.calltrace.cycles-pp.xfs_iunlink_remove.xfs_ifree.xfs_inactive_ifree.xfs_inactive.xfs_fs_destroy_inode
      0.46 ± 45%      +0.2        0.65 ±  7%  perf-profile.calltrace.cycles-pp.xfs_buf_read_map.xfs_trans_read_buf_map.xfs_read_agi.xfs_iunlink.xfs_remove
      1.74 ±  3%      +0.2        1.94 ±  3%  perf-profile.calltrace.cycles-pp.__xfs_btree_check_sblock.xfs_btree_check_sblock.xfs_btree_get_rec.xfs_inobt_get_rec.xfs_check_agi_freecount
      1.15 ±  7%      +0.2        1.35        perf-profile.calltrace.cycles-pp.xfs_da3_node_lookup_int.xfs_dir2_node_removename.xfs_dir_removename.xfs_remove.xfs_vn_unlink
      0.51 ± 46%      +0.2        0.71 ±  5%  perf-profile.calltrace.cycles-pp.xfs_read_agi.xfs_iunlink_remove.xfs_ifree.xfs_inactive_ifree.xfs_inactive
      0.95 ±  8%      +0.2        1.16 ±  7%  perf-profile.calltrace.cycles-pp.xfs_dialloc_select_ag.xfs_dir_ialloc.xfs_create.xfs_generic_create.vfs_mkdir
      1.64 ±  4%      +0.2        1.86 ±  3%  perf-profile.calltrace.cycles-pp.xfs_btree_check_sblock.xfs_btree_increment.xfs_check_agi_freecount.xfs_dialloc_ag.xfs_dir_ialloc
      2.67 ±  3%      +0.2        2.90 ±  2%  perf-profile.calltrace.cycles-pp.xfs_btree_get_rec.xfs_inobt_get_rec.xfs_check_agi_freecount.xfs_dialloc_ag.xfs_dir_ialloc
      2.40 ±  4%      +0.3        2.66 ±  5%  perf-profile.calltrace.cycles-pp.__xfs_trans_commit.xfs_create.xfs_generic_create.vfs_mkdir.do_mkdirat
      1.88 ±  4%      +0.3        2.14 ±  3%  perf-profile.calltrace.cycles-pp.xfs_log_commit_cil.__xfs_trans_commit.xfs_remove.xfs_vn_unlink.vfs_rmdir
      2.36 ±  4%      +0.3        2.62 ±  5%  perf-profile.calltrace.cycles-pp.xfs_log_commit_cil.__xfs_trans_commit.xfs_create.xfs_generic_create.vfs_mkdir
      1.96 ±  4%      +0.3        2.23 ±  3%  perf-profile.calltrace.cycles-pp.__xfs_trans_commit.xfs_remove.xfs_vn_unlink.vfs_rmdir.do_rmdir
      1.56 ±  2%      +0.3        1.86 ± 10%  perf-profile.calltrace.cycles-pp.xfs_log_commit_cil.__xfs_trans_commit.xfs_inactive_ifree.xfs_inactive.xfs_fs_destroy_inode
      1.64 ±  2%      +0.3        1.94 ±  9%  perf-profile.calltrace.cycles-pp.__xfs_trans_commit.xfs_inactive_ifree.xfs_inactive.xfs_fs_destroy_inode.destroy_inode
      0.27 ±100%      +0.3        0.59 ±  2%  perf-profile.calltrace.cycles-pp.xfs_dir2_node_addname_int.xfs_dir2_node_addname.xfs_dir_createname.xfs_create.xfs_generic_create
      2.87 ±  5%      +0.4        3.23 ±  3%  perf-profile.calltrace.cycles-pp.xfs_btree_increment.xfs_check_agi_freecount.xfs_dialloc_ag.xfs_dir_ialloc.xfs_create
      2.05 ±  4%      +0.4        2.41 ±  2%  perf-profile.calltrace.cycles-pp.xfs_dir2_node_removename.xfs_dir_removename.xfs_remove.xfs_vn_unlink.vfs_rmdir
      2.27 ±  4%      +0.4        2.63 ±  3%  perf-profile.calltrace.cycles-pp.xfs_dir_removename.xfs_remove.xfs_vn_unlink.vfs_rmdir.do_rmdir
      8.99 ±  3%      +0.8        9.77 ±  2%  perf-profile.calltrace.cycles-pp.xfs_check_agi_freecount.xfs_dialloc_ag.xfs_dir_ialloc.xfs_create.xfs_generic_create
      0.43 ± 80%      +0.8        1.23 ± 18%  perf-profile.calltrace.cycles-pp.xfs_buf_find.xfs_buf_get_map.xfs_buf_read_map.xfs_trans_read_buf_map.xfs_read_agi
      9.71 ±  3%      +0.8       10.53 ±  2%  perf-profile.calltrace.cycles-pp.xfs_dialloc_ag.xfs_dir_ialloc.xfs_create.xfs_generic_create.vfs_mkdir
      5.58 ±  3%      +0.9        6.47 ±  2%  perf-profile.calltrace.cycles-pp.xfs_vn_unlink.vfs_rmdir.do_rmdir.do_syscall_64.entry_SYSCALL_64_after_hwframe
      5.56 ±  3%      +0.9        6.46 ±  2%  perf-profile.calltrace.cycles-pp.xfs_remove.xfs_vn_unlink.vfs_rmdir.do_rmdir.do_syscall_64
      5.13 ±  4%      +0.9        6.02 ±  8%  perf-profile.calltrace.cycles-pp.__percpu_counter_sum.xfs_fs_statfs.statfs_by_dentry.vfs_statfs.user_statfs
      5.41 ±  4%      +0.9        6.36 ±  9%  perf-profile.calltrace.cycles-pp.vfs_statfs.user_statfs.__do_sys_statfs.do_syscall_64.entry_SYSCALL_64_after_hwframe
      5.39 ±  4%      +1.0        6.34 ±  9%  perf-profile.calltrace.cycles-pp.statfs_by_dentry.vfs_statfs.user_statfs.__do_sys_statfs.do_syscall_64
      5.35 ±  4%      +1.0        6.31 ±  9%  perf-profile.calltrace.cycles-pp.xfs_fs_statfs.statfs_by_dentry.vfs_statfs.user_statfs.__do_sys_statfs
      6.25 ±  3%      +1.0        7.30 ±  7%  perf-profile.calltrace.cycles-pp.user_statfs.__do_sys_statfs.do_syscall_64.entry_SYSCALL_64_after_hwframe
      6.36 ±  3%      +1.1        7.42 ±  7%  perf-profile.calltrace.cycles-pp.__do_sys_statfs.do_syscall_64.entry_SYSCALL_64_after_hwframe
     11.53 ±  3%      +1.2       12.69        perf-profile.calltrace.cycles-pp.xfs_dir_ialloc.xfs_create.xfs_generic_create.vfs_mkdir.do_mkdirat
     10.20 ±  3%      +1.2       11.36 ±  4%  perf-profile.calltrace.cycles-pp.xfs_difree.xfs_ifree.xfs_inactive_ifree.xfs_inactive.xfs_fs_destroy_inode
     11.37 ±  3%      +1.4       12.73 ±  3%  perf-profile.calltrace.cycles-pp.xfs_ifree.xfs_inactive_ifree.xfs_inactive.xfs_fs_destroy_inode.destroy_inode
     15.83 ±  3%      +1.7       17.50        perf-profile.calltrace.cycles-pp.xfs_create.xfs_generic_create.vfs_mkdir.do_mkdirat.do_syscall_64
     13.23 ±  3%      +1.7       14.91 ±  2%  perf-profile.calltrace.cycles-pp.xfs_inactive.xfs_fs_destroy_inode.destroy_inode.vfs_rmdir.do_rmdir
     13.28 ±  3%      +1.7       14.96 ±  2%  perf-profile.calltrace.cycles-pp.xfs_fs_destroy_inode.destroy_inode.vfs_rmdir.do_rmdir.do_syscall_64
     13.22 ±  3%      +1.7       14.90 ±  2%  perf-profile.calltrace.cycles-pp.xfs_inactive_ifree.xfs_inactive.xfs_fs_destroy_inode.destroy_inode.vfs_rmdir
     13.44 ±  3%      +1.7       15.14 ±  2%  perf-profile.calltrace.cycles-pp.destroy_inode.vfs_rmdir.do_rmdir.do_syscall_64.entry_SYSCALL_64_after_hwframe
     15.95 ±  3%      +1.7       17.64        perf-profile.calltrace.cycles-pp.xfs_generic_create.vfs_mkdir.do_mkdirat.do_syscall_64.entry_SYSCALL_64_after_hwframe
     15.99 ±  3%      +1.7       17.70        perf-profile.calltrace.cycles-pp.vfs_mkdir.do_mkdirat.do_syscall_64.entry_SYSCALL_64_after_hwframe
     16.34 ±  3%      +1.8       18.12        perf-profile.calltrace.cycles-pp.do_mkdirat.do_syscall_64.entry_SYSCALL_64_after_hwframe
     19.38 ±  3%      +2.6       21.99        perf-profile.calltrace.cycles-pp.vfs_rmdir.do_rmdir.do_syscall_64.entry_SYSCALL_64_after_hwframe
     19.73 ±  3%      +2.7       22.41        perf-profile.calltrace.cycles-pp.do_rmdir.do_syscall_64.entry_SYSCALL_64_after_hwframe
     43.26            +5.5       48.78        perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe
     43.31            +5.5       48.83        perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe
     55.08            -5.3       49.83        perf-profile.children.cycles-pp.do_idle
     55.09            -5.3       49.84        perf-profile.children.cycles-pp.secondary_startup_64_no_verify
     55.09            -5.3       49.84        perf-profile.children.cycles-pp.cpu_startup_entry
      8.30 ±  4%      -4.2        4.14 ± 12%  perf-profile.children.cycles-pp.asm_sysvec_apic_timer_interrupt
     51.02            -4.1       46.94 ±  2%  perf-profile.children.cycles-pp.cpuidle_enter
     51.00            -4.1       46.93 ±  2%  perf-profile.children.cycles-pp.cpuidle_enter_state
     53.42 ±  2%      -3.9       49.47        perf-profile.children.cycles-pp.start_secondary
      7.39 ±  4%      -3.8        3.59 ± 13%  perf-profile.children.cycles-pp.sysvec_apic_timer_interrupt
      5.09 ±  6%      -2.7        2.42 ± 13%  perf-profile.children.cycles-pp.__sysvec_apic_timer_interrupt
      5.05 ±  6%      -2.7        2.38 ± 13%  perf-profile.children.cycles-pp.hrtimer_interrupt
      2.50 ±  7%      -1.6        0.93 ± 37%  perf-profile.children.cycles-pp.ktime_get
      1.85 ± 12%      -1.1        0.74 ± 23%  perf-profile.children.cycles-pp.clockevents_program_event
      2.69 ± 13%      -1.1        1.60 ± 19%  perf-profile.children.cycles-pp.menu_select
      2.38 ±  4%      -1.1        1.29 ± 11%  perf-profile.children.cycles-pp.__hrtimer_run_queues
      1.71 ±  5%      -0.8        0.86 ± 14%  perf-profile.children.cycles-pp.tick_sched_timer
      1.47 ±  5%      -0.7        0.76 ± 16%  perf-profile.children.cycles-pp.tick_sched_handle
      1.43 ±  5%      -0.7        0.74 ± 16%  perf-profile.children.cycles-pp.update_process_times
      1.50 ± 18%      -0.7        0.83 ± 25%  perf-profile.children.cycles-pp.tick_nohz_get_sleep_length
      1.23 ± 23%      -0.6        0.65 ± 31%  perf-profile.children.cycles-pp.tick_nohz_next_event
      1.05 ±  6%      -0.4        0.61 ±  6%  perf-profile.children.cycles-pp.irq_exit_rcu
      0.68 ± 30%      -0.4        0.29 ± 56%  perf-profile.children.cycles-pp.timekeeping_max_deferment
      0.50 ± 11%      -0.4        0.14 ± 51%  perf-profile.children.cycles-pp.ktime_get_update_offsets_now
      0.78 ± 11%      -0.3        0.44 ± 17%  perf-profile.children.cycles-pp.scheduler_tick
      0.85 ±  6%      -0.3        0.51 ±  6%  perf-profile.children.cycles-pp.__softirqentry_text_start
      0.50 ± 15%      -0.3        0.22 ± 25%  perf-profile.children.cycles-pp.tick_nohz_irq_exit
      0.34 ± 15%      -0.2        0.13 ± 48%  perf-profile.children.cycles-pp.calc_global_load_tick
      0.45 ±  9%      -0.2        0.26 ±  6%  perf-profile.children.cycles-pp.rebalance_domains
      0.46 ±  9%      -0.2        0.27 ±  8%  perf-profile.children.cycles-pp.lapic_next_deadline
      0.85 ±  6%      -0.2        0.66 ± 19%  perf-profile.children.cycles-pp.process_one_work
      0.46 ±  5%      -0.2        0.28 ± 11%  perf-profile.children.cycles-pp.native_irq_return_iret
      0.92 ±  5%      -0.2        0.73 ± 18%  perf-profile.children.cycles-pp.ret_from_fork
      0.85 ±  6%      -0.2        0.67 ± 19%  perf-profile.children.cycles-pp.worker_thread
      0.91 ±  5%      -0.2        0.73 ± 18%  perf-profile.children.cycles-pp.kthread
      0.48 ±  4%      -0.1        0.33 ±  9%  perf-profile.children.cycles-pp.sched_clock_cpu
      0.37 ± 11%      -0.1        0.23 ± 13%  perf-profile.children.cycles-pp.read_tsc
      0.42 ±  5%      -0.1        0.29 ±  9%  perf-profile.children.cycles-pp.native_sched_clock
      0.34 ± 12%      -0.1        0.22 ±  9%  perf-profile.children.cycles-pp.perf_mux_hrtimer_handler
      0.29 ±  9%      -0.1        0.18 ±  7%  perf-profile.children.cycles-pp.irqtime_account_irq
      0.17 ± 12%      -0.1        0.06 ± 54%  perf-profile.children.cycles-pp._raw_spin_trylock
      0.28 ±  7%      -0.1        0.17 ±  7%  perf-profile.children.cycles-pp.irq_work_run_list
      0.27 ±  7%      -0.1        0.17 ±  6%  perf-profile.children.cycles-pp.asm_sysvec_irq_work
      0.27 ±  7%      -0.1        0.17 ±  6%  perf-profile.children.cycles-pp.sysvec_irq_work
      0.27 ±  7%      -0.1        0.17 ±  6%  perf-profile.children.cycles-pp.__sysvec_irq_work
      0.27 ±  7%      -0.1        0.17 ±  6%  perf-profile.children.cycles-pp.irq_work_run
      0.27 ±  7%      -0.1        0.17 ±  6%  perf-profile.children.cycles-pp.irq_work_single
      0.27 ±  7%      -0.1        0.17 ±  6%  perf-profile.children.cycles-pp.printk
      0.27 ±  7%      -0.1        0.17 ±  6%  perf-profile.children.cycles-pp.vprintk_emit
      0.27 ±  7%      -0.1        0.17 ±  6%  perf-profile.children.cycles-pp.console_unlock
      0.26 ±  8%      -0.1        0.16 ±  8%  perf-profile.children.cycles-pp.serial8250_console_write
      0.25 ±  7%      -0.1        0.15 ±  7%  perf-profile.children.cycles-pp.uart_console_write
      0.18 ± 25%      -0.1        0.07 ± 37%  perf-profile.children.cycles-pp.tsc_verify_tsc_adjust
      0.25 ±  7%      -0.1        0.15 ±  8%  perf-profile.children.cycles-pp.wait_for_xmitr
      0.18 ± 25%      -0.1        0.08 ± 34%  perf-profile.children.cycles-pp.arch_cpu_idle_enter
      0.27 ± 11%      -0.1        0.18 ± 12%  perf-profile.children.cycles-pp.load_balance
      0.24 ±  7%      -0.1        0.15 ±  9%  perf-profile.children.cycles-pp.serial8250_console_putchar
      0.32 ±  4%      -0.1        0.24 ± 13%  perf-profile.children.cycles-pp.update_rq_clock
      0.21 ± 13%      -0.1        0.13 ± 10%  perf-profile.children.cycles-pp.io_serial_in
      0.21 ± 12%      -0.1        0.14 ±  8%  perf-profile.children.cycles-pp.hrtimer_next_event_without
      0.20 ± 13%      -0.1        0.14 ± 11%  perf-profile.children.cycles-pp.find_busiest_group
      0.09 ± 11%      -0.1        0.03 ± 99%  perf-profile.children.cycles-pp.timerqueue_del
      0.15 ± 14%      -0.1        0.09 ± 30%  perf-profile.children.cycles-pp.rcu_sched_clock_irq
      0.18 ±  7%      -0.1        0.11 ± 17%  perf-profile.children.cycles-pp.__hrtimer_next_event_base
      0.19 ± 14%      -0.1        0.13 ± 12%  perf-profile.children.cycles-pp.update_sd_lb_stats
      0.12 ± 13%      -0.1        0.07 ± 11%  perf-profile.children.cycles-pp.__remove_hrtimer
      0.14 ± 11%      -0.1        0.09 ± 11%  perf-profile.children.cycles-pp.run_rebalance_domains
      0.14 ± 13%      -0.0        0.09 ± 11%  perf-profile.children.cycles-pp.hrtimer_update_next_event
      0.12 ± 16%      -0.0        0.07 ± 19%  perf-profile.children.cycles-pp.update_irq_load_avg
      0.14 ± 13%      -0.0        0.09 ± 20%  perf-profile.children.cycles-pp.update_blocked_averages
      0.12 ± 10%      +0.0        0.14 ±  5%  perf-profile.children.cycles-pp.update_curr
      0.07 ±  7%      +0.0        0.09 ±  7%  perf-profile.children.cycles-pp.tick_nohz_idle_exit
      0.08 ± 30%      +0.0        0.11 ± 18%  perf-profile.children.cycles-pp.map_id_range_down
      0.04 ± 73%      +0.0        0.08 ± 13%  perf-profile.children.cycles-pp.xfs_verify_agbno
      0.20 ± 15%      +0.0        0.25 ±  7%  perf-profile.children.cycles-pp.filename_parentat
      0.25 ± 14%      +0.0        0.30 ±  9%  perf-profile.children.cycles-pp.xfs_lookup_get_search_key
      0.37 ±  9%      +0.1        0.43 ±  7%  perf-profile.children.cycles-pp.kmem_cache_alloc
      0.32 ±  7%      +0.1        0.39 ±  5%  perf-profile.children.cycles-pp.__xfs_dir3_free_read
      0.64 ±  6%      +0.1        0.72 ±  6%  perf-profile.children.cycles-pp.filename_lookup
      0.57 ±  7%      +0.1        0.66 ±  4%  perf-profile.children.cycles-pp.xfs_inobt_get_maxrecs
      0.50 ±  7%      +0.1        0.59 ±  2%  perf-profile.children.cycles-pp.xfs_dir2_node_addname_int
      0.36 ±  6%      +0.1        0.46 ±  9%  perf-profile.children.cycles-pp.xfs_imap_to_bp
      0.33 ±  2%      +0.1        0.43 ± 11%  perf-profile.children.cycles-pp.xfs_dir3_data_read
      0.45 ±  6%      +0.1        0.54 ±  6%  perf-profile.children.cycles-pp.xfs_buf_rele
      0.54 ±  7%      +0.1        0.64 ±  8%  perf-profile.children.cycles-pp.xfs_inode_item_format
      0.60 ±  4%      +0.1        0.71 ±  8%  perf-profile.children.cycles-pp.xfs_trans_log_inode
      1.21 ±  4%      +0.1        1.34 ±  3%  perf-profile.children.cycles-pp.xfs_buf_unlock
      0.75 ±  3%      +0.1        0.89 ±  8%  perf-profile.children.cycles-pp.xfs_dir2_leafn_remove
      0.70 ±  6%      +0.1        0.84 ± 10%  perf-profile.children.cycles-pp.xfs_perag_get
      0.77 ±  3%      +0.1        0.91 ±  7%  perf-profile.children.cycles-pp.xfs_iunlink
      1.15 ±  2%      +0.1        1.29 ±  3%  perf-profile.children.cycles-pp.up
      1.08 ±  3%      +0.1        1.23 ±  6%  perf-profile.children.cycles-pp.xfs_btree_read_buf_block
      1.29 ±  4%      +0.2        1.46 ±  2%  perf-profile.children.cycles-pp.xfs_buf_item_release
      0.83 ±  3%      +0.2        1.00 ±  7%  perf-profile.children.cycles-pp.down
      0.80 ±  3%      +0.2        0.98 ±  7%  perf-profile.children.cycles-pp.__down
      0.86 ±  3%      +0.2        1.04 ±  6%  perf-profile.children.cycles-pp.xfs_buf_lock
      1.22 ±  4%      +0.2        1.40 ±  6%  perf-profile.children.cycles-pp.xfs_btree_lookup_get_block
      1.19 ±  3%      +0.2        1.38 ±  5%  perf-profile.children.cycles-pp.memcpy_erms
      0.94 ±  8%      +0.2        1.13 ±  5%  perf-profile.children.cycles-pp.xfs_iunlink_remove
      1.39 ±  2%      +0.2        1.58 ±  4%  perf-profile.children.cycles-pp.xfs_buf_item_format_segment
      1.47 ±  2%      +0.2        1.67 ±  4%  perf-profile.children.cycles-pp.xfs_buf_item_format
      0.95 ±  8%      +0.2        1.16 ±  7%  perf-profile.children.cycles-pp.xfs_dialloc_select_ag
      1.47 ±  2%      +0.2        1.70 ±  2%  perf-profile.children.cycles-pp.xfs_errortag_test
      1.61 ±  5%      +0.3        1.87        perf-profile.children.cycles-pp.xfs_da3_node_lookup_int
      1.41 ±  7%      +0.3        1.69 ±  2%  perf-profile.children.cycles-pp.xfs_da_read_buf
      1.89 ±  3%      +0.3        2.19 ±  4%  perf-profile.children.cycles-pp.xfs_btree_lookup
      1.82 ±  4%      +0.3        2.16 ±  5%  perf-profile.children.cycles-pp.xfs_read_agi
      2.05 ±  4%      +0.4        2.41 ±  2%  perf-profile.children.cycles-pp.xfs_dir2_node_removename
      2.27 ±  4%      +0.4        2.63 ±  3%  perf-profile.children.cycles-pp.xfs_dir_removename
      3.93 ±  4%      +0.4        4.35 ±  3%  perf-profile.children.cycles-pp.__xfs_btree_check_sblock
      2.70            +0.4        3.14 ±  5%  perf-profile.children.cycles-pp.xlog_cil_insert_items
      2.71 ±  2%      +0.5        3.19 ±  3%  perf-profile.children.cycles-pp.xfs_buf_find
      2.93 ±  3%      +0.5        3.45 ±  3%  perf-profile.children.cycles-pp.xfs_buf_get_map
      2.96 ±  2%      +0.5        3.51 ±  3%  perf-profile.children.cycles-pp.xfs_buf_read_map
      4.06 ±  3%      +0.7        4.77 ±  4%  perf-profile.children.cycles-pp.xfs_trans_read_buf_map
      6.62            +0.8        7.39 ±  3%  perf-profile.children.cycles-pp.xfs_btree_check_sblock
      9.72 ±  3%      +0.8       10.54 ±  2%  perf-profile.children.cycles-pp.xfs_dialloc_ag
      5.92 ±  2%      +0.8        6.75 ±  4%  perf-profile.children.cycles-pp.xfs_log_commit_cil
      6.11 ±  2%      +0.9        6.97 ±  4%  perf-profile.children.cycles-pp.__xfs_trans_commit
      5.58 ±  3%      +0.9        6.47 ±  2%  perf-profile.children.cycles-pp.xfs_vn_unlink
      5.56 ±  3%      +0.9        6.46 ±  2%  perf-profile.children.cycles-pp.xfs_remove
      5.15 ±  4%      +0.9        6.07 ±  8%  perf-profile.children.cycles-pp.__percpu_counter_sum
     10.88 ±  2%      +0.9       11.80 ±  3%  perf-profile.children.cycles-pp.xfs_inobt_get_rec
      5.41 ±  4%      +0.9        6.36 ±  9%  perf-profile.children.cycles-pp.vfs_statfs
      5.36 ±  4%      +1.0        6.31 ±  9%  perf-profile.children.cycles-pp.xfs_fs_statfs
      5.39 ±  4%      +1.0        6.34 ±  9%  perf-profile.children.cycles-pp.statfs_by_dentry
      6.25 ±  3%      +1.0        7.30 ±  7%  perf-profile.children.cycles-pp.user_statfs
      6.36 ±  3%      +1.1        7.42 ±  7%  perf-profile.children.cycles-pp.__do_sys_statfs
     11.53 ±  3%      +1.2       12.69        perf-profile.children.cycles-pp.xfs_dir_ialloc
     10.20 ±  3%      +1.2       11.36 ±  4%  perf-profile.children.cycles-pp.xfs_difree
     11.37 ±  3%      +1.4       12.74 ±  3%  perf-profile.children.cycles-pp.xfs_ifree
     15.83 ±  3%      +1.7       17.50        perf-profile.children.cycles-pp.xfs_create
     13.28 ±  3%      +1.7       14.96 ±  2%  perf-profile.children.cycles-pp.xfs_fs_destroy_inode
     13.22 ±  3%      +1.7       14.90 ±  2%  perf-profile.children.cycles-pp.xfs_inactive_ifree
     13.23 ±  3%      +1.7       14.92 ±  2%  perf-profile.children.cycles-pp.xfs_inactive
     13.44 ±  3%      +1.7       15.14 ±  2%  perf-profile.children.cycles-pp.destroy_inode
     15.95 ±  3%      +1.7       17.65        perf-profile.children.cycles-pp.xfs_generic_create
     15.99 ±  3%      +1.7       17.70        perf-profile.children.cycles-pp.vfs_mkdir
     16.34 ±  3%      +1.8       18.12        perf-profile.children.cycles-pp.do_mkdirat
     18.25 ±  2%      +1.8       20.07 ±  3%  perf-profile.children.cycles-pp.xfs_check_agi_freecount
     19.38 ±  3%      +2.6       22.00        perf-profile.children.cycles-pp.vfs_rmdir
     19.73 ±  3%      +2.7       22.42        perf-profile.children.cycles-pp.do_rmdir
     43.47            +5.4       48.90        perf-profile.children.cycles-pp.do_syscall_64
     43.51            +5.4       48.95        perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
      2.19 ±  7%      -1.5        0.73 ± 46%  perf-profile.self.cycles-pp.ktime_get
      1.09 ±  5%      -0.4        0.67 ±  7%  perf-profile.self.cycles-pp.cpuidle_enter_state
      0.68 ± 30%      -0.4        0.28 ± 57%  perf-profile.self.cycles-pp.timekeeping_max_deferment
      0.45 ± 11%      -0.3        0.11 ± 65%  perf-profile.self.cycles-pp.ktime_get_update_offsets_now
      0.37 ± 31%      -0.3        0.12 ± 20%  perf-profile.self.cycles-pp.update_process_times
      0.34 ± 15%      -0.2        0.13 ± 48%  perf-profile.self.cycles-pp.calc_global_load_tick
      0.46 ±  9%      -0.2        0.27 ±  8%  perf-profile.self.cycles-pp.lapic_next_deadline
      0.46 ±  5%      -0.2        0.28 ± 11%  perf-profile.self.cycles-pp.native_irq_return_iret
      0.36 ± 11%      -0.1        0.22 ± 12%  perf-profile.self.cycles-pp.read_tsc
      0.41 ±  6%      -0.1        0.29 ± 10%  perf-profile.self.cycles-pp.native_sched_clock
      0.17 ± 12%      -0.1        0.06 ± 54%  perf-profile.self.cycles-pp._raw_spin_trylock
      0.17 ± 25%      -0.1        0.07 ± 39%  perf-profile.self.cycles-pp.tsc_verify_tsc_adjust
      0.21 ± 13%      -0.1        0.13 ± 10%  perf-profile.self.cycles-pp.io_serial_in
      0.13 ± 11%      -0.1        0.07 ± 52%  perf-profile.self.cycles-pp.rcu_sched_clock_irq
      0.10 ± 25%      -0.1        0.04 ± 75%  perf-profile.self.cycles-pp.asm_sysvec_apic_timer_interrupt
      0.15 ±  9%      -0.0        0.10 ± 20%  perf-profile.self.cycles-pp.__hrtimer_next_event_base
      0.12 ± 14%      -0.0        0.07 ± 19%  perf-profile.self.cycles-pp.update_irq_load_avg
      0.10 ± 16%      -0.0        0.06 ±  9%  perf-profile.self.cycles-pp.irqtime_account_irq
      0.13 ± 15%      -0.0        0.09 ± 16%  perf-profile.self.cycles-pp.update_sd_lb_stats
      0.05 ± 47%      +0.0        0.08 ± 18%  perf-profile.self.cycles-pp.schedule_timeout
      0.14 ± 11%      +0.0        0.17 ±  4%  perf-profile.self.cycles-pp.xfs_buf_get_map
      0.10 ± 17%      +0.0        0.13 ±  8%  perf-profile.self.cycles-pp.xfs_bmapi_read
      0.04 ± 72%      +0.0        0.08 ± 13%  perf-profile.self.cycles-pp.xfs_verify_agbno
      0.32 ±  8%      +0.1        0.38 ±  8%  perf-profile.self.cycles-pp.xlog_cil_insert_items
      0.47 ±  9%      +0.1        0.54 ±  6%  perf-profile.self.cycles-pp.xfs_verify_dir_ino
      0.45 ±  6%      +0.1        0.52 ±  4%  perf-profile.self.cycles-pp.xfs_check_agi_freecount
      0.47 ±  6%      +0.1        0.56 ±  5%  perf-profile.self.cycles-pp.xfs_inobt_get_maxrecs
      0.58 ±  6%      +0.1        0.70 ±  8%  perf-profile.self.cycles-pp.xfs_perag_get
      1.17 ±  3%      +0.2        1.36 ±  6%  perf-profile.self.cycles-pp.memcpy_erms
      1.43            +0.2        1.66 ±  2%  perf-profile.self.cycles-pp.xfs_errortag_test
      3.34 ±  5%      +0.4        3.71 ±  3%  perf-profile.self.cycles-pp.__xfs_btree_check_sblock
      2.62 ±  5%      +0.5        3.16 ± 11%  perf-profile.self.cycles-pp.__percpu_counter_sum


                                                                                
                                   stress-ng.dir.ops                            
                                                                                
    3e+06 +-----------------------------------------------------------------+   
          | OO O O                                                          |   
  2.8e+06 |-+     O   OO O O  OO O O  O OO   OO O OO   OO O OO OO   OO O  O |   
  2.6e+06 |-+       O                                                       |   
          |                         O                             O         |   
  2.4e+06 |-+               O              O         O                      |   
  2.2e+06 |-+                                                            O  |   
          |                                                                 |   
    2e+06 |-+                                                               |   
  1.8e+06 |-+                                                               |   
          |                                                                 |   
  1.6e+06 |.+   .+   .+  +.+ .+   .+      .+.++.+.++.+.+ .+.  .+            |   
  1.4e+06 |-++.+  +.+  :+   +  +.+  +.+.++              +   ++  +.+.++.+.++ |   
          |            +                                                    |   
  1.2e+06 +-----------------------------------------------------------------+   
                                                                                
                                                                                                                                                                
                              stress-ng.dir.ops_per_sec                         
                                                                                
  50000 +-------------------------------------------------------------------+   
        | OO O O                                                            |   
  45000 |-+      O  O O  O  O O O O  O OO   OO O O O  O OO O OO O   OO O  O |   
        |         O    O                                                    |   
        |                                                         O         |   
  40000 |-+                O       O      O         O                       |   
        |                                                                O  |   
  35000 |-+                                                                 |   
        |                                                                   |   
  30000 |-+                                                                 |   
        |                                                                   |   
        |.+   .+.   +   .+  +.   .+       +. +.+.+. +.+.      +.            |   
  25000 |-++.+   + + + +  + : +.+  +.+.+ +  +      +    ++.+.+  +.+.++.+.++ |   
        |         +   +    +            +                                   |   
  20000 +-------------------------------------------------------------------+   
                                                                                
                                                                                
[*] bisect-good sample
[O] bisect-bad  sample



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.


---
0DAY/LKP+ Test Infrastructure                   Open Source Technology Center
https://lists.01.org/hyperkitty/list/lkp@lists.01.org       Intel Corporation

Thanks,
Oliver Sang


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