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Message-ID: <20201024120829.GK31092@shao2-debian>
Date:   Sat, 24 Oct 2020 20:08:29 +0800
From:   kernel test robot <rong.a.chen@...el.com>
To:     Theodore Ts'o <tytso@....edu>
Cc:     LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org,
        lkp@...el.com, ying.huang@...el.com, feng.tang@...el.com,
        zhengjun.xing@...el.com, guobing.chen@...el.com,
        ming.a.chen@...el.com, frank.du@...el.com, Shuhua.Fan@...el.com,
        wangyang.guo@...el.com, Wenhuan.Huang@...el.com,
        jessica.ji@...el.com, shan.kang@...el.com, guangli.li@...el.com,
        tiejun.li@...el.com, yu.ma@...el.com, dapeng1.mi@...el.com,
        jiebin.sun@...el.com, gengxin.xie@...el.com, fan.zhao@...el.com
Subject: [ext4] 244adf6426:
 phoronix-test-suite.fio.SequentialWrite.Sync.Yes.No.4KB.DefaultTestDirectory.mb_s
 -36.1% regression

Greeting,

FYI, we noticed a -36.1% regression of phoronix-test-suite.fio.SequentialWrite.Sync.Yes.No.4KB.DefaultTestDirectory.mb_s due to commit:


commit: 244adf6426ee31a83f397b700d964cff12a247d3 ("ext4: make dioread_nolock the default")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master


in testcase: phoronix-test-suite
on test machine: 96 threads Intel(R) Xeon(R) Gold 6252 CPU @ 2.10GHz with 192G memory
with following parameters:

	test: fio-1.11.5
	option_a: Sequential Write
	option_b: Sync
	option_c: Yes
	option_d: No
	option_e: 4KB
	option_f: Default Test Directory
	cpufreq_governor: performance
	ucode: 0x5002f01

test-description: The Phoronix Test Suite is the most comprehensive testing and benchmarking platform available that provides an extensible framework for which new tests can be easily added.
test-url: http://www.phoronix-test-suite.com/

In addition to that, the commit also has significant impact on the following tests:

+------------------+-----------------------------------------------------------------------+
| testcase: change | fio-basic: fio.write_iops -58.8% regression                           |
| test machine     | 72 threads Intel(R) Xeon(R) CPU E5-2699 v3 @ 2.30GHz with 128G memory |
| test parameters  | bs=4k                                                                 |
|                  | cpufreq_governor=performance                                          |
|                  | disk=2pmem                                                            |
|                  | fs=ext4                                                               |
|                  | ioengine=sync                                                         |
|                  | nr_task=50%                                                           |
|                  | runtime=200s                                                          |
|                  | rw=randwrite                                                          |
|                  | test_size=200G                                                        |
|                  | time_based=tb                                                         |
|                  | ucode=0x43                                                            |
+------------------+-----------------------------------------------------------------------+


If you fix the issue, kindly add following tag
Reported-by: kernel test robot <rong.a.chen@...el.com>


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 run     job.yaml

=========================================================================================
compiler/cpufreq_governor/kconfig/option_a/option_b/option_c/option_d/option_e/option_f/rootfs/tbox_group/test/testcase/ucode:
  gcc-9/performance/x86_64-rhel-8.3/Sequential Write/Sync/Yes/No/4KB/Default Test Directory/debian-x86_64-phoronix/lkp-csl-2sp8/fio-1.11.5/phoronix-test-suite/0x5002f01

commit: 
  4068664e3c ("ext4: fix extent_status fragmentation for plain files")
  244adf6426 ("ext4: make dioread_nolock the default")

4068664e3cd23126 244adf6426ee31a83f397b700d9 
---------------- --------------------------- 
         %stddev     %change         %stddev
             \          |                \  
    235329           -36.2%     150250        phoronix-test-suite.fio.SequentialWrite.Sync.Yes.No.4KB.DefaultTestDirectory.iops
    919.25           -36.1%     587.25        phoronix-test-suite.fio.SequentialWrite.Sync.Yes.No.4KB.DefaultTestDirectory.mb_s


                                                                                
phoronix-test-suite.fio.SequentialWrite.Sync.Yes.No.4KB.DefaultTestDirectory.mb_
                                                                                
  950 +---------------------------------------------------------------------+   
      |..    .+.+..+      +.. .+..+.+..+.+..+.+..+    +.+..+.+.  +  .+.+..+.|   
  900 |-++.+.                +                                    +.        |   
  850 |-+                                                                   |   
      |                                                                     |   
  800 |-+                                                                   |   
      |                                                                     |   
  750 |-+                                                                   |   
      |                                                                     |   
  700 |-+                                                                   |   
  650 |-+                                                                   |   
      |                                                                     |   
  600 |-+          O O    O    O  O O  O O                 O                |   
      |  O O  O O       O    O              O O  O O  O O    O              |   
  550 +---------------------------------------------------------------------+   
                                                                                
                                                                                                                                                                
phoronix-test-suite.fio.SequentialWrite.Sync.Yes.No.4KB.DefaultTestDirectory.iop
                                                                                
  250000 +------------------------------------------------------------------+   
  240000 |-+          .+..+.         .+.           .+.         .+.    .+..  |   
         |.  .+.+..+.+      +..+.+.+.   +..+.+.+..+   +..+.+..+   +..+    +.|   
  230000 |-+.                                                               |   
  220000 |-+                                                                |   
  210000 |-+                                                                |   
  200000 |-+                                                                |   
         |                                                                  |   
  190000 |-+                                                                |   
  180000 |-+                                                                |   
  170000 |-+                                                                |   
  160000 |-+                                                                |   
         |           O O         O O  O O  O               O                |   
  150000 |-O  O O  O      O O  O             O O  O O O  O    O             |   
  140000 +------------------------------------------------------------------+   
                                                                                
                                                                                
[*] bisect-good sample
[O] bisect-bad  sample

***************************************************************************************************
lkp-hsw-ep4: 72 threads Intel(R) Xeon(R) CPU E5-2699 v3 @ 2.30GHz with 128G memory
=========================================================================================
bs/compiler/cpufreq_governor/disk/fs/ioengine/kconfig/nr_task/rootfs/runtime/rw/tbox_group/test_size/testcase/time_based/ucode:
  4k/gcc-9/performance/2pmem/ext4/sync/x86_64-rhel-7.6/50%/debian-x86_64-20191114.cgz/200s/randwrite/lkp-hsw-ep4/200G/fio-basic/tb/0x43

commit: 
  4068664e3c ("ext4: fix extent_status fragmentation for plain files")
  244adf6426 ("ext4: make dioread_nolock the default")

4068664e3cd23126 244adf6426ee31a83f397b700d9 
---------------- --------------------------- 
       fail:runs  %reproduction    fail:runs
           |             |             |    
          1:4          -25%            :4     dmesg.WARNING:at#for_ip_interrupt_entry/0x
         %stddev     %change         %stddev
             \          |                \  
      0.04 ± 14%      -0.0        0.01 ± 27%  fio.latency_100us%
      2.69 ± 15%      +1.4        4.14 ± 25%  fio.latency_4us%
      0.13            +0.2        0.35 ± 17%  fio.latency_50ms%
      0.97 ± 10%      +0.5        1.44 ± 16%  fio.latency_50us%
 1.205e+09           -58.8%  4.967e+08 ± 10%  fio.time.file_system_outputs
     19468 ± 28%     -87.0%       2523 ± 35%  fio.time.involuntary_context_switches
    115842            -1.9%     113673        fio.time.minor_page_faults
    746.75 ±  3%     -60.6%     294.00 ± 12%  fio.time.percent_of_cpu_this_job_got
      1281 ±  3%     -61.0%     500.17 ± 13%  fio.time.system_time
    218.06 ±  3%     -58.5%      90.56 ± 11%  fio.time.user_time
    317685 ±  4%     -17.5%     261941 ±  3%  fio.time.voluntary_context_switches
 1.506e+08           -58.8%   62083647 ± 10%  fio.workload
      2940           -58.8%       1212 ± 10%  fio.write_bw_MBps
     13024            +6.9%      13920        fio.write_clat_95%_us
     20736 ±  2%     +20.1%      24896 ±  5%  fio.write_clat_99%_us
     46251          +150.3%     115787 ± 11%  fio.write_clat_mean_us
   1027511           +77.2%    1821210 ±  3%  fio.write_clat_stddev
    752793           -58.8%     310367 ± 10%  fio.write_iops
   6165539 ± 58%     -66.5%    2067351 ± 85%  cpuidle.C1E.usage
    528517           +60.1%     846095        meminfo.Active
    223502          +151.9%     562933        meminfo.Active(file)
    209593          +162.1%     549446        meminfo.Buffers
     37.32            +5.0       42.32 ±  2%  mpstat.cpu.all.iowait%
     12.03            -6.0        6.06 ±  8%  mpstat.cpu.all.sys%
      1.47 ±  2%      -0.9        0.58 ± 14%  mpstat.cpu.all.usr%
     49.64            +3.5%      51.38        iostat.cpu.idle
     36.95           +13.5%      41.96 ±  2%  iostat.cpu.iowait
     11.95           -49.1%       6.08 ±  8%  iostat.cpu.system
      1.46 ±  2%     -60.3%       0.58 ± 14%  iostat.cpu.user
     48.75            +4.1%      50.75        vmstat.cpu.id
     36.50           +13.7%      41.50 ±  2%  vmstat.cpu.wa
   3576950           -64.2%    1281274 ± 10%  vmstat.io.bo
    209727          +162.2%     549884        vmstat.memory.buff
     27.50           +15.5%      31.75 ±  2%  vmstat.procs.b
      9.50 ±  5%     -50.0%       4.75 ±  9%  vmstat.procs.r
      5870 ±  5%     -21.3%       4618 ±  3%  vmstat.system.cs
    145897           -10.9%     129945 ± 19%  vmstat.system.in
  62626351 ±  7%     -57.9%   26383573 ±  9%  numa-numastat.node0.local_node
  14010771 ± 33%     -65.2%    4882491 ± 19%  numa-numastat.node0.numa_foreign
  62634553 ±  7%     -57.9%   26397605 ±  9%  numa-numastat.node0.numa_hit
  11906400 ± 26%     -62.4%    4479564 ± 27%  numa-numastat.node0.numa_miss
  11914608 ± 26%     -62.3%    4493601 ± 27%  numa-numastat.node0.other_node
  64372103 ±  7%     -56.0%   28345038 ± 12%  numa-numastat.node1.local_node
  11906400 ± 26%     -62.4%    4479564 ± 27%  numa-numastat.node1.numa_foreign
  64387420 ±  7%     -56.0%   28354510 ± 12%  numa-numastat.node1.numa_hit
  14010771 ± 33%     -65.2%    4882491 ± 19%  numa-numastat.node1.numa_miss
  14026091 ± 33%     -65.1%    4891963 ± 19%  numa-numastat.node1.other_node
      9757 ± 17%     -43.4%       5519 ± 18%  sched_debug.cfs_rq:/.exec_clock.avg
      1747 ± 30%     -82.7%     302.81 ± 55%  sched_debug.cfs_rq:/.exec_clock.min
    174.64 ±  5%     -48.1%      90.60 ±  6%  sched_debug.cfs_rq:/.load_avg.avg
     28268 ± 10%     -19.3%      22819 ± 17%  sched_debug.cfs_rq:/.min_vruntime.avg
     68.07 ± 32%     -40.8%      40.28 ± 14%  sched_debug.cfs_rq:/.runnable_load_avg.avg
    248.98 ±  2%     -29.2%     176.25 ±  9%  sched_debug.cfs_rq:/.util_avg.avg
     69.69 ± 29%     -37.9%      43.28 ± 13%  sched_debug.cfs_rq:/.util_est_enqueued.avg
    502292           +18.5%     595427 ±  7%  sched_debug.cpu.max_idle_balance_cost.max
    268.33 ±173%   +4062.8%      11170 ± 46%  sched_debug.cpu.max_idle_balance_cost.stddev
     40.23 ±  4%     -15.8%      33.88 ± 16%  sched_debug.cpu.nr_uninterruptible.max
     10.41 ±  7%     -15.1%       8.83 ±  7%  sched_debug.cpu.nr_uninterruptible.stddev
    998.12 ±  4%     +43.8%       1434 ± 20%  sched_debug.cpu.ttwu_local.stddev
  31126962 ±  2%     -55.5%   13857067 ±  5%  numa-vmstat.node0.nr_dirtied
  30262548 ±  2%     -57.1%   12975737 ±  6%  numa-vmstat.node0.nr_written
   7172620 ± 16%     -63.9%    2585751 ± 36%  numa-vmstat.node0.numa_foreign
  27887317 ±  4%     -56.2%   12216788 ±  9%  numa-vmstat.node0.numa_hit
  27877920 ±  4%     -56.2%   12202178 ±  9%  numa-vmstat.node0.numa_local
   4299742 ± 11%     -42.7%    2463318 ± 50%  numa-vmstat.node0.numa_miss
   4309147 ± 11%     -42.5%    2477931 ± 50%  numa-vmstat.node0.numa_other
  31511758 ±  3%     -52.9%   14840322 ±  4%  numa-vmstat.node1.nr_dirtied
  30618693 ±  3%     -54.6%   13902619 ±  4%  numa-vmstat.node1.nr_written
   4299873 ± 11%     -42.7%    2463365 ± 50%  numa-vmstat.node1.numa_foreign
  25420521 ±  6%     -48.5%   13090767 ± 11%  numa-vmstat.node1.numa_hit
  25237813 ±  6%     -48.8%   12913429 ± 12%  numa-vmstat.node1.numa_local
   7172742 ± 16%     -63.9%    2585812 ± 36%  numa-vmstat.node1.numa_miss
   7355456 ± 16%     -62.4%    2763153 ± 34%  numa-vmstat.node1.numa_other
    101.25 ±141%    +257.5%     362.00 ± 82%  numa-vmstat.node1.workingset_nodes
    149.25 ±  3%  +24274.2%      36378 ±172%  softirqs.CPU12.NET_RX
     73193 ± 12%     +16.8%      85481 ±  7%  softirqs.CPU14.TIMER
     92723 ±  5%      +8.3%     100391 ±  3%  softirqs.CPU16.RCU
     91076 ±  8%     +11.0%     101106 ±  3%  softirqs.CPU17.RCU
     71601 ± 11%     +21.9%      87292 ±  8%  softirqs.CPU17.TIMER
     75826 ± 17%     +28.6%      97538 ±  7%  softirqs.CPU30.TIMER
     21336 ± 18%     +26.1%      26904 ±  2%  softirqs.CPU34.SCHED
     66547 ± 26%     +33.0%      88538 ± 12%  softirqs.CPU36.RCU
     69872 ± 11%     +24.4%      86887 ±  9%  softirqs.CPU37.TIMER
     74595 ± 20%     +28.5%      95843 ±  7%  softirqs.CPU44.RCU
     71518 ± 12%     +20.8%      86399 ±  9%  softirqs.CPU44.TIMER
     72709 ± 12%     +19.3%      86749 ±  9%  softirqs.CPU50.TIMER
     71700 ± 12%     +22.1%      87578 ±  8%  softirqs.CPU6.TIMER
     84070 ±  5%     +15.8%      97365 ±  8%  softirqs.CPU7.RCU
     71608 ± 10%     +35.8%      97268 ± 15%  softirqs.CPU7.TIMER
     71680 ± 13%     +20.9%      86648 ± 10%  softirqs.CPU8.TIMER
    355.25 ±  4%     -39.5%     215.00 ±  9%  slabinfo.biovec-max.active_objs
    355.25 ±  4%     -39.5%     215.00 ±  9%  slabinfo.biovec-max.num_objs
      1203 ±  6%      -9.2%       1092 ±  2%  slabinfo.blkdev_ioc.active_objs
      1243 ±  5%     -10.1%       1117 ±  4%  slabinfo.blkdev_ioc.num_objs
      1119 ±  7%     -16.6%     933.00 ±  8%  slabinfo.dquot.active_objs
      1119 ±  7%     -16.6%     933.00 ±  8%  slabinfo.dquot.num_objs
   2958956 ±  2%     +77.1%    5238960        slabinfo.ext4_extent_status.active_objs
     49004 ±  3%     +80.5%      88440 ±  2%  slabinfo.ext4_extent_status.active_slabs
   4998512 ±  3%     +80.5%    9021005 ±  2%  slabinfo.ext4_extent_status.num_objs
     49004 ±  3%     +80.5%      88440 ±  2%  slabinfo.ext4_extent_status.num_slabs
      1946 ±  6%     -64.9%     683.75 ± 26%  slabinfo.ext4_io_end.active_objs
      1946 ±  6%     -64.9%     683.75 ± 26%  slabinfo.ext4_io_end.num_objs
      4839 ±  6%     -32.2%       3279 ±  9%  slabinfo.fsnotify_mark_connector.active_objs
      4839 ±  6%     -32.2%       3279 ±  9%  slabinfo.fsnotify_mark_connector.num_objs
     31847 ±  3%    +304.4%     128797        slabinfo.jbd2_journal_head.active_objs
    976.75 ±  2%    +300.0%       3907        slabinfo.jbd2_journal_head.active_slabs
     33227 ±  2%    +299.8%     132847        slabinfo.jbd2_journal_head.num_objs
    976.75 ±  2%    +300.0%       3907        slabinfo.jbd2_journal_head.num_slabs
      6136 ± 62%     -95.8%     257.50 ±127%  proc-vmstat.allocstall_movable
      2149 ± 47%     -97.7%      49.75 ±154%  proc-vmstat.allocstall_normal
  12950089 ± 40%     -96.6%     435795 ± 33%  proc-vmstat.compact_daemon_free_scanned
      2354 ± 15%     -48.3%       1217 ± 12%  proc-vmstat.compact_daemon_wake
  13066988 ± 39%     -96.7%     435795 ± 33%  proc-vmstat.compact_free_scanned
    545508 ± 40%     -86.4%      74068 ± 88%  proc-vmstat.compact_isolated
    148.50 ± 14%    +394.6%     734.50 ± 24%  proc-vmstat.kswapd_high_wmark_hit_quickly
      4562           -37.2%       2865 ±  6%  proc-vmstat.kswapd_low_wmark_hit_quickly
     76258            -7.2%      70787        proc-vmstat.nr_active_anon
     55881          +151.9%     140753        proc-vmstat.nr_active_file
 1.511e+08           -58.0%   63509486 ± 10%  proc-vmstat.nr_dirtied
   1755193 ±  2%      +3.5%    1817148        proc-vmstat.nr_dirty
    114286            -5.2%     108393        proc-vmstat.nr_shmem
    424044            +9.5%     464234        proc-vmstat.nr_slab_reclaimable
     32785            -1.0%      32473        proc-vmstat.nr_slab_unreclaimable
 1.495e+08           -58.3%   62292440 ± 11%  proc-vmstat.nr_written
     76268            -7.2%      70798        proc-vmstat.nr_zone_active_anon
     55882          +151.9%     140771        proc-vmstat.nr_zone_active_file
   1757596 ±  2%      +3.5%    1819265        proc-vmstat.nr_zone_write_pending
  25870477 ±  6%     -63.9%    9327553 ± 15%  proc-vmstat.numa_foreign
      4277 ± 50%     -53.0%       2010 ± 52%  proc-vmstat.numa_hint_faults_local
 1.268e+08           -56.9%   54628951 ± 10%  proc-vmstat.numa_hit
 1.268e+08           -56.9%   54605440 ± 10%  proc-vmstat.numa_local
  25870477 ±  6%     -63.9%    9327553 ± 15%  proc-vmstat.numa_miss
  25894008 ±  6%     -63.9%    9351063 ± 15%  proc-vmstat.numa_other
      4781           -19.7%       3841 ±  2%  proc-vmstat.pageoutrun
     14089 ±  6%     -58.4%       5854 ±  2%  proc-vmstat.pgactivate
   5717469 ±  5%     -60.7%    2248190 ± 13%  proc-vmstat.pgalloc_dma32
 1.474e+08           -57.9%   62033715 ± 10%  proc-vmstat.pgalloc_normal
 1.428e+08           -62.0%   54275602 ± 12%  proc-vmstat.pgfree
    271840 ± 39%     -83.2%      45689 ± 74%  proc-vmstat.pgmigrate_success
 7.259e+08           -64.1%  2.605e+08 ± 10%  proc-vmstat.pgpgout
  20728683 ± 40%     -96.3%     759921 ±110%  proc-vmstat.pgscan_direct
  92248882 ±  9%     -52.9%   43485504 ±  4%  proc-vmstat.pgscan_kswapd
  20728682 ± 40%     -96.3%     759919 ±110%  proc-vmstat.pgsteal_direct
  92248829 ±  9%     -52.9%   43485456 ±  4%  proc-vmstat.pgsteal_kswapd
  1.16e+08           -25.8%   86033473 ±  5%  proc-vmstat.slabs_scanned
      9.44           -10.6%       8.44 ±  6%  perf-stat.i.MPKI
 3.496e+09           -31.7%  2.389e+09 ±  7%  perf-stat.i.branch-instructions
      1.80            -0.1        1.70 ±  2%  perf-stat.i.branch-miss-rate%
  62817951           -35.2%   40720451 ±  9%  perf-stat.i.branch-misses
     32.34            -7.6       24.75 ±  7%  perf-stat.i.cache-miss-rate%
  58491266 ±  2%     -54.1%   26863081 ± 10%  perf-stat.i.cache-misses
  1.72e+08           -39.5%  1.041e+08 ±  2%  perf-stat.i.cache-references
      5886 ±  5%     -21.7%       4611 ±  3%  perf-stat.i.context-switches
      1.75           -13.0%       1.52 ±  2%  perf-stat.i.cpi
  3.23e+10           -40.9%  1.909e+10 ±  4%  perf-stat.i.cpu-cycles
     98.25 ±  2%     -13.9%      84.61        perf-stat.i.cpu-migrations
    662.38           +23.4%     817.14 ±  4%  perf-stat.i.cycles-between-cache-misses
  56505808 ± 18%     -35.5%   36423798 ±  8%  perf-stat.i.dTLB-load-misses
 5.223e+09           -29.3%  3.695e+09 ±  7%  perf-stat.i.dTLB-loads
   4846212 ± 10%     -45.7%    2629596        perf-stat.i.dTLB-store-misses
 3.218e+09           -36.3%   2.05e+09 ±  5%  perf-stat.i.dTLB-stores
   6579800 ± 27%     -55.2%    2948423 ± 21%  perf-stat.i.iTLB-load-misses
   2347506 ±  7%     -36.2%    1496584 ± 18%  perf-stat.i.iTLB-loads
 1.813e+10           -31.3%  1.245e+10 ±  6%  perf-stat.i.instructions
      3209 ± 21%     +44.6%       4639 ± 18%  perf-stat.i.instructions-per-iTLB-miss
      0.58           +15.0%       0.66 ±  2%  perf-stat.i.ipc
      0.45           -40.9%       0.27 ±  4%  perf-stat.i.metric.GHz
    169.13           -32.1%     114.86 ±  6%  perf-stat.i.metric.M/sec
      3174            -1.1%       3138        perf-stat.i.minor-faults
  23143101 ±  2%     -50.2%   11521113 ± 11%  perf-stat.i.node-load-misses
  27856680 ±  2%     -55.0%   12547737 ± 17%  perf-stat.i.node-loads
   3524499 ±  2%     -57.9%    1485166 ± 14%  perf-stat.i.node-store-misses
   3096777 ±  3%     -59.1%    1267360 ± 11%  perf-stat.i.node-stores
      3174            -1.1%       3138        perf-stat.i.page-faults
      9.49           -11.6%       8.39 ±  5%  perf-stat.overall.MPKI
      1.80            -0.1        1.70 ±  2%  perf-stat.overall.branch-miss-rate%
     34.01 ±  2%      -8.2       25.78 ±  8%  perf-stat.overall.cache-miss-rate%
      1.78           -13.8%       1.54 ±  2%  perf-stat.overall.cpi
    552.56 ±  2%     +29.4%     714.76 ±  6%  perf-stat.overall.cycles-between-cache-misses
      0.15 ± 12%      -0.0        0.13 ±  3%  perf-stat.overall.dTLB-store-miss-rate%
     72.61 ±  8%      -6.4       66.21        perf-stat.overall.iTLB-load-miss-rate%
      2940 ± 23%     +48.9%       4378 ± 18%  perf-stat.overall.instructions-per-iTLB-miss
      0.56           +16.1%       0.65 ±  2%  perf-stat.overall.ipc
     24110           +67.9%      40488 ±  5%  perf-stat.overall.path-length
 3.479e+09           -31.7%  2.378e+09 ±  7%  perf-stat.ps.branch-instructions
  62524565           -35.2%   40535951 ±  9%  perf-stat.ps.branch-misses
  58206685 ±  2%     -54.1%   26734388 ± 10%  perf-stat.ps.cache-misses
 1.711e+08           -39.5%  1.036e+08 ±  2%  perf-stat.ps.cache-references
      5859 ±  5%     -21.7%       4589 ±  3%  perf-stat.ps.context-switches
 3.214e+10           -40.9%    1.9e+10 ±  4%  perf-stat.ps.cpu-cycles
     97.78 ±  2%     -13.9%      84.21        perf-stat.ps.cpu-migrations
  56233980 ± 18%     -35.5%   36253818 ±  8%  perf-stat.ps.dTLB-load-misses
 5.197e+09           -29.3%  3.677e+09 ±  7%  perf-stat.ps.dTLB-loads
   4822652 ± 10%     -45.7%    2616966        perf-stat.ps.dTLB-store-misses
 3.203e+09           -36.3%   2.04e+09 ±  5%  perf-stat.ps.dTLB-stores
   6548345 ± 27%     -55.2%    2934364 ± 21%  perf-stat.ps.iTLB-load-misses
   2335855 ±  7%     -36.2%    1489224 ± 18%  perf-stat.ps.iTLB-loads
 1.804e+10           -31.3%  1.239e+10 ±  6%  perf-stat.ps.instructions
      3166            -1.3%       3126        perf-stat.ps.minor-faults
  23029576 ±  2%     -50.2%   11466112 ± 11%  perf-stat.ps.node-load-misses
  27721032 ±  2%     -55.0%   12486426 ± 17%  perf-stat.ps.node-loads
   3507651 ±  2%     -57.8%    1478603 ± 14%  perf-stat.ps.node-store-misses
   3082410 ±  3%     -59.1%    1261681 ± 11%  perf-stat.ps.node-stores
      3166            -1.3%       3126        perf-stat.ps.page-faults
 3.631e+12           -31.1%  2.501e+12 ±  7%  perf-stat.total.instructions
    130.25 ± 14%    +237.8%     440.00 ± 50%  interrupts.49:IR-PCI-MSI.1572878-edge.eth0-TxRx-14
      1960 ± 36%     -68.6%     615.50 ± 22%  interrupts.CPU0.NMI:Non-maskable_interrupts
      1960 ± 36%     -68.6%     615.50 ± 22%  interrupts.CPU0.PMI:Performance_monitoring_interrupts
    532.00 ± 90%     +97.2%       1049 ± 42%  interrupts.CPU0.RES:Rescheduling_interrupts
      1089 ± 38%     -43.2%     619.00 ± 41%  interrupts.CPU1.NMI:Non-maskable_interrupts
      1089 ± 38%     -43.2%     619.00 ± 41%  interrupts.CPU1.PMI:Performance_monitoring_interrupts
    446.00 ± 55%     -83.6%      73.00 ± 48%  interrupts.CPU10.RES:Rescheduling_interrupts
      1500 ± 40%     -67.7%     484.50 ± 31%  interrupts.CPU13.NMI:Non-maskable_interrupts
      1500 ± 40%     -67.7%     484.50 ± 31%  interrupts.CPU13.PMI:Performance_monitoring_interrupts
    130.25 ± 14%    +237.8%     440.00 ± 50%  interrupts.CPU14.49:IR-PCI-MSI.1572878-edge.eth0-TxRx-14
    259.75 ± 96%     -81.1%      49.00 ± 31%  interrupts.CPU15.RES:Rescheduling_interrupts
     84.25 ± 31%     -56.7%      36.50 ± 32%  interrupts.CPU16.RES:Rescheduling_interrupts
      1518 ± 49%     -72.5%     417.75 ± 29%  interrupts.CPU2.NMI:Non-maskable_interrupts
      1518 ± 49%     -72.5%     417.75 ± 29%  interrupts.CPU2.PMI:Performance_monitoring_interrupts
      1792 ± 27%     -59.8%     720.00 ± 44%  interrupts.CPU20.NMI:Non-maskable_interrupts
      1792 ± 27%     -59.8%     720.00 ± 44%  interrupts.CPU20.PMI:Performance_monitoring_interrupts
      1021 ± 25%     -40.6%     606.00 ± 27%  interrupts.CPU22.NMI:Non-maskable_interrupts
      1021 ± 25%     -40.6%     606.00 ± 27%  interrupts.CPU22.PMI:Performance_monitoring_interrupts
      1426 ± 13%     -33.7%     945.25 ± 18%  interrupts.CPU23.NMI:Non-maskable_interrupts
      1426 ± 13%     -33.7%     945.25 ± 18%  interrupts.CPU23.PMI:Performance_monitoring_interrupts
      1746 ± 18%     -56.8%     754.50 ± 38%  interrupts.CPU24.NMI:Non-maskable_interrupts
      1746 ± 18%     -56.8%     754.50 ± 38%  interrupts.CPU24.PMI:Performance_monitoring_interrupts
      1778 ± 25%     -65.1%     620.25 ± 43%  interrupts.CPU25.NMI:Non-maskable_interrupts
      1778 ± 25%     -65.1%     620.25 ± 43%  interrupts.CPU25.PMI:Performance_monitoring_interrupts
      1748 ± 55%     -80.6%     338.50 ± 10%  interrupts.CPU27.NMI:Non-maskable_interrupts
      1748 ± 55%     -80.6%     338.50 ± 10%  interrupts.CPU27.PMI:Performance_monitoring_interrupts
    554.50 ± 67%     -91.2%      49.00 ± 96%  interrupts.CPU27.RES:Rescheduling_interrupts
      1607 ± 30%     -66.3%     542.25 ± 41%  interrupts.CPU28.NMI:Non-maskable_interrupts
      1607 ± 30%     -66.3%     542.25 ± 41%  interrupts.CPU28.PMI:Performance_monitoring_interrupts
      2257 ± 44%     -81.8%     410.75 ± 21%  interrupts.CPU29.NMI:Non-maskable_interrupts
      2257 ± 44%     -81.8%     410.75 ± 21%  interrupts.CPU29.PMI:Performance_monitoring_interrupts
    203.25 ± 54%     -82.8%      35.00 ± 69%  interrupts.CPU29.RES:Rescheduling_interrupts
    101.50 ± 31%     -63.1%      37.50 ± 42%  interrupts.CPU30.RES:Rescheduling_interrupts
      1482 ± 14%     -77.5%     333.50 ± 31%  interrupts.CPU31.NMI:Non-maskable_interrupts
      1482 ± 14%     -77.5%     333.50 ± 31%  interrupts.CPU31.PMI:Performance_monitoring_interrupts
      3501 ±140%     -99.0%      33.75 ± 37%  interrupts.CPU31.RES:Rescheduling_interrupts
      1944 ± 13%     -70.0%     584.25 ± 47%  interrupts.CPU32.NMI:Non-maskable_interrupts
      1944 ± 13%     -70.0%     584.25 ± 47%  interrupts.CPU32.PMI:Performance_monitoring_interrupts
      2061 ±136%     -97.0%      61.50 ± 47%  interrupts.CPU33.RES:Rescheduling_interrupts
    161.00 ± 58%     -56.4%      70.25 ± 44%  interrupts.CPU34.RES:Rescheduling_interrupts
      1061 ± 12%     -40.2%     634.00 ± 38%  interrupts.CPU35.NMI:Non-maskable_interrupts
      1061 ± 12%     -40.2%     634.00 ± 38%  interrupts.CPU35.PMI:Performance_monitoring_interrupts
    313.75 ± 79%     -89.1%      34.25 ± 43%  interrupts.CPU35.RES:Rescheduling_interrupts
      2638 ± 55%     -82.0%     473.75 ± 37%  interrupts.CPU36.NMI:Non-maskable_interrupts
      2638 ± 55%     -82.0%     473.75 ± 37%  interrupts.CPU36.PMI:Performance_monitoring_interrupts
    684.00 ±104%     -92.7%      50.25 ±123%  interrupts.CPU36.RES:Rescheduling_interrupts
    363.00 ± 12%    +176.0%       1001 ± 77%  interrupts.CPU37.CAL:Function_call_interrupts
      1505 ± 29%     -53.2%     704.25 ± 36%  interrupts.CPU37.NMI:Non-maskable_interrupts
      1505 ± 29%     -53.2%     704.25 ± 36%  interrupts.CPU37.PMI:Performance_monitoring_interrupts
      1503 ± 21%     -57.0%     646.50 ± 16%  interrupts.CPU38.NMI:Non-maskable_interrupts
      1503 ± 21%     -57.0%     646.50 ± 16%  interrupts.CPU38.PMI:Performance_monitoring_interrupts
    371.00 ± 17%    +128.6%     848.00 ± 70%  interrupts.CPU39.CAL:Function_call_interrupts
      1838 ± 21%     -51.9%     883.50 ± 43%  interrupts.CPU4.NMI:Non-maskable_interrupts
      1838 ± 21%     -51.9%     883.50 ± 43%  interrupts.CPU4.PMI:Performance_monitoring_interrupts
      1775 ± 41%     -66.8%     588.75 ± 27%  interrupts.CPU40.NMI:Non-maskable_interrupts
      1775 ± 41%     -66.8%     588.75 ± 27%  interrupts.CPU40.PMI:Performance_monitoring_interrupts
    305.75 ± 32%     -90.6%      28.75 ± 27%  interrupts.CPU40.RES:Rescheduling_interrupts
      1657 ± 32%     -65.8%     567.00 ± 30%  interrupts.CPU43.NMI:Non-maskable_interrupts
      1657 ± 32%     -65.8%     567.00 ± 30%  interrupts.CPU43.PMI:Performance_monitoring_interrupts
    179.25 ±108%     -80.1%      35.75 ± 28%  interrupts.CPU43.RES:Rescheduling_interrupts
      1956 ± 60%     -63.2%     719.50 ± 26%  interrupts.CPU44.NMI:Non-maskable_interrupts
      1956 ± 60%     -63.2%     719.50 ± 26%  interrupts.CPU44.PMI:Performance_monitoring_interrupts
      1959 ± 55%     -71.8%     551.75 ± 29%  interrupts.CPU46.NMI:Non-maskable_interrupts
      1959 ± 55%     -71.8%     551.75 ± 29%  interrupts.CPU46.PMI:Performance_monitoring_interrupts
      1222 ± 21%     -40.2%     730.75 ± 31%  interrupts.CPU51.NMI:Non-maskable_interrupts
      1222 ± 21%     -40.2%     730.75 ± 31%  interrupts.CPU51.PMI:Performance_monitoring_interrupts
      1495 ± 14%     -57.1%     641.75 ± 39%  interrupts.CPU54.NMI:Non-maskable_interrupts
      1495 ± 14%     -57.1%     641.75 ± 39%  interrupts.CPU54.PMI:Performance_monitoring_interrupts
    363.25 ±  4%    +121.5%     804.75 ± 84%  interrupts.CPU55.CAL:Function_call_interrupts
      1859 ± 24%     -68.5%     585.25 ± 21%  interrupts.CPU56.NMI:Non-maskable_interrupts
      1859 ± 24%     -68.5%     585.25 ± 21%  interrupts.CPU56.PMI:Performance_monitoring_interrupts
      1448 ± 20%     -50.8%     712.25 ± 37%  interrupts.CPU57.NMI:Non-maskable_interrupts
      1448 ± 20%     -50.8%     712.25 ± 37%  interrupts.CPU57.PMI:Performance_monitoring_interrupts
      1876 ± 29%     -55.1%     842.25 ± 56%  interrupts.CPU58.NMI:Non-maskable_interrupts
      1876 ± 29%     -55.1%     842.25 ± 56%  interrupts.CPU58.PMI:Performance_monitoring_interrupts
    365.25 ±  4%    +178.7%       1018 ± 81%  interrupts.CPU59.CAL:Function_call_interrupts
      2317 ± 79%     -63.8%     839.25 ± 21%  interrupts.CPU60.NMI:Non-maskable_interrupts
      2317 ± 79%     -63.8%     839.25 ± 21%  interrupts.CPU60.PMI:Performance_monitoring_interrupts
    203.50 ± 71%     -80.7%      39.25 ± 34%  interrupts.CPU61.RES:Rescheduling_interrupts
     64.50 ± 52%     -54.7%      29.25 ± 38%  interrupts.CPU62.RES:Rescheduling_interrupts
      3477 ± 67%     -83.4%     576.50 ± 35%  interrupts.CPU63.NMI:Non-maskable_interrupts
      3477 ± 67%     -83.4%     576.50 ± 35%  interrupts.CPU63.PMI:Performance_monitoring_interrupts
      2162 ± 30%     -70.5%     638.00 ± 57%  interrupts.CPU66.NMI:Non-maskable_interrupts
      2162 ± 30%     -70.5%     638.00 ± 57%  interrupts.CPU66.PMI:Performance_monitoring_interrupts
    118.25 ± 46%     -59.6%      47.75 ± 44%  interrupts.CPU66.RES:Rescheduling_interrupts
      1610 ± 23%     -68.6%     506.25 ± 46%  interrupts.CPU67.NMI:Non-maskable_interrupts
      1610 ± 23%     -68.6%     506.25 ± 46%  interrupts.CPU67.PMI:Performance_monitoring_interrupts
    152.00 ± 35%     -72.4%      42.00 ± 42%  interrupts.CPU67.RES:Rescheduling_interrupts
      1458 ± 15%     -58.4%     607.00 ± 37%  interrupts.CPU68.NMI:Non-maskable_interrupts
      1458 ± 15%     -58.4%     607.00 ± 37%  interrupts.CPU68.PMI:Performance_monitoring_interrupts
    139.00 ± 78%     -80.0%      27.75 ± 57%  interrupts.CPU68.RES:Rescheduling_interrupts
      1873 ± 40%     -52.4%     892.75 ± 38%  interrupts.CPU70.NMI:Non-maskable_interrupts
      1873 ± 40%     -52.4%     892.75 ± 38%  interrupts.CPU70.PMI:Performance_monitoring_interrupts
     23.00 ± 94%    +143.5%      56.00 ± 51%  interrupts.CPU70.TLB:TLB_shootdowns
      1631 ± 26%     -49.3%     828.00 ± 58%  interrupts.CPU71.NMI:Non-maskable_interrupts
      1631 ± 26%     -49.3%     828.00 ± 58%  interrupts.CPU71.PMI:Performance_monitoring_interrupts
    427.00 ± 36%    +116.3%     923.75 ± 55%  interrupts.CPU8.CAL:Function_call_interrupts
      1098 ± 49%     -48.4%     566.25 ± 24%  interrupts.CPU8.NMI:Non-maskable_interrupts
      1098 ± 49%     -48.4%     566.25 ± 24%  interrupts.CPU8.PMI:Performance_monitoring_interrupts
    104.25 ±  6%     -81.3%      19.50 ± 17%  interrupts.IWI:IRQ_work_interrupts
    117583 ±  8%     -47.3%      61984 ±  8%  interrupts.NMI:Non-maskable_interrupts
    117583 ±  8%     -47.3%      61984 ±  8%  interrupts.PMI:Performance_monitoring_interrupts
     47.58 ±  6%     -25.5       22.04 ± 14%  perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe
     47.41 ±  6%     -25.5       21.95 ± 14%  perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe
     37.72 ±  7%     -17.4       20.34 ± 14%  perf-profile.calltrace.cycles-pp.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe
     37.52 ±  7%     -17.3       20.23 ± 14%  perf-profile.calltrace.cycles-pp.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe
     36.49 ±  7%     -16.8       19.70 ± 14%  perf-profile.calltrace.cycles-pp.new_sync_write.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe
     36.31 ±  7%     -16.7       19.60 ± 14%  perf-profile.calltrace.cycles-pp.ext4_buffered_write_iter.new_sync_write.vfs_write.ksys_write.do_syscall_64
     35.63 ±  7%     -16.5       19.13 ± 14%  perf-profile.calltrace.cycles-pp.generic_perform_write.ext4_buffered_write_iter.new_sync_write.vfs_write.ksys_write
     27.09 ±  8%     -12.2       14.85 ± 14%  perf-profile.calltrace.cycles-pp.ext4_da_write_begin.generic_perform_write.ext4_buffered_write_iter.new_sync_write.vfs_write
      8.88 ± 27%      -8.9        0.00        perf-profile.calltrace.cycles-pp.mpage_process_page_bufs.mpage_prepare_extent_to_map.ext4_writepages.do_writepages.__writeback_single_inode
      8.29 ± 27%      -8.3        0.00        perf-profile.calltrace.cycles-pp.mpage_submit_page.mpage_process_page_bufs.mpage_prepare_extent_to_map.ext4_writepages.do_writepages
      9.79 ± 26%      -8.0        1.76 ± 14%  perf-profile.calltrace.cycles-pp.mpage_prepare_extent_to_map.ext4_writepages.do_writepages.__writeback_single_inode.writeback_sb_inodes
      7.82 ± 27%      -7.8        0.00        perf-profile.calltrace.cycles-pp.ext4_bio_write_page.mpage_submit_page.mpage_process_page_bufs.mpage_prepare_extent_to_map.ext4_writepages
      6.46 ± 63%      -6.5        0.00        perf-profile.calltrace.cycles-pp.__x64_sys_fadvise64.do_syscall_64.entry_SYSCALL_64_after_hwframe
      6.46 ± 63%      -6.5        0.00        perf-profile.calltrace.cycles-pp.ksys_fadvise64_64.__x64_sys_fadvise64.do_syscall_64.entry_SYSCALL_64_after_hwframe
      6.46 ± 63%      -6.5        0.00        perf-profile.calltrace.cycles-pp.generic_fadvise.ksys_fadvise64_64.__x64_sys_fadvise64.do_syscall_64.entry_SYSCALL_64_after_hwframe
     17.01 ±  5%      -6.3       10.73 ± 14%  perf-profile.calltrace.cycles-pp.ext4_block_write_begin.ext4_da_write_begin.generic_perform_write.ext4_buffered_write_iter.new_sync_write
      6.26 ± 28%      -6.3        0.00        perf-profile.calltrace.cycles-pp.ext4_io_submit.ext4_bio_write_page.mpage_submit_page.mpage_process_page_bufs.mpage_prepare_extent_to_map
      6.25 ± 28%      -6.2        0.00        perf-profile.calltrace.cycles-pp.submit_bio.ext4_io_submit.ext4_bio_write_page.mpage_submit_page.mpage_process_page_bufs
      6.23 ± 28%      -6.2        0.00        perf-profile.calltrace.cycles-pp.generic_make_request.submit_bio.ext4_io_submit.ext4_bio_write_page.mpage_submit_page
      6.09 ± 65%      -6.1        0.00        perf-profile.calltrace.cycles-pp.invalidate_mapping_pages.generic_fadvise.ksys_fadvise64_64.__x64_sys_fadvise64.do_syscall_64
      5.87 ± 28%      -5.9        0.00        perf-profile.calltrace.cycles-pp.pmem_make_request.generic_make_request.submit_bio.ext4_io_submit.ext4_bio_write_page
     15.75 ±  5%      -5.5       10.21 ± 14%  perf-profile.calltrace.cycles-pp.ext4_da_get_block_prep.ext4_block_write_begin.ext4_da_write_begin.generic_perform_write.ext4_buffered_write_iter
     15.59 ±  5%      -5.5       10.08 ± 14%  perf-profile.calltrace.cycles-pp.ext4_da_map_blocks.ext4_da_get_block_prep.ext4_block_write_begin.ext4_da_write_begin.generic_perform_write
      6.11 ± 16%      -3.4        2.75 ± 17%  perf-profile.calltrace.cycles-pp.grab_cache_page_write_begin.ext4_da_write_begin.generic_perform_write.ext4_buffered_write_iter.new_sync_write
      6.05 ± 16%      -3.3        2.72 ± 17%  perf-profile.calltrace.cycles-pp.pagecache_get_page.grab_cache_page_write_begin.ext4_da_write_begin.generic_perform_write.ext4_buffered_write_iter
      6.39 ±  9%      -3.0        3.40 ± 14%  perf-profile.calltrace.cycles-pp.ext4_es_lookup_extent.ext4_da_map_blocks.ext4_da_get_block_prep.ext4_block_write_begin.ext4_da_write_begin
      3.60 ± 12%      -2.4        1.18 ± 15%  perf-profile.calltrace.cycles-pp.__ext4_journal_start_sb.ext4_da_write_begin.generic_perform_write.ext4_buffered_write_iter.new_sync_write
      4.58 ±  8%      -2.4        2.19 ± 15%  perf-profile.calltrace.cycles-pp.ext4_da_write_end.generic_perform_write.ext4_buffered_write_iter.new_sync_write.vfs_write
      2.96 ± 12%      -2.0        0.92 ± 18%  perf-profile.calltrace.cycles-pp.jbd2__journal_start.__ext4_journal_start_sb.ext4_da_write_begin.generic_perform_write.ext4_buffered_write_iter
      2.79 ± 12%      -2.0        0.81 ± 18%  perf-profile.calltrace.cycles-pp.start_this_handle.jbd2__journal_start.__ext4_journal_start_sb.ext4_da_write_begin.generic_perform_write
      2.21 ± 30%      -1.9        0.29 ±100%  perf-profile.calltrace.cycles-pp.ext4_end_bio.pmem_make_request.generic_make_request.submit_bio.ext4_io_submit
      3.48 ± 27%      -1.8        1.66 ± 20%  perf-profile.calltrace.cycles-pp.pmem_do_bvec.pmem_make_request.generic_make_request.submit_bio.ext4_io_submit
      3.46 ± 27%      -1.8        1.65 ± 20%  perf-profile.calltrace.cycles-pp.write_pmem.pmem_do_bvec.pmem_make_request.generic_make_request.submit_bio
      3.43 ± 27%      -1.8        1.63 ± 19%  perf-profile.calltrace.cycles-pp.__memcpy_flushcache.write_pmem.pmem_do_bvec.pmem_make_request.generic_make_request
      4.08 ±  2%      -1.8        2.33 ± 18%  perf-profile.calltrace.cycles-pp.__read_extent_tree_block.ext4_find_extent.ext4_ext_map_blocks.ext4_da_map_blocks.ext4_da_get_block_prep
      4.00 ±  2%      -1.7        2.27 ± 18%  perf-profile.calltrace.cycles-pp.__getblk_gfp.__read_extent_tree_block.ext4_find_extent.ext4_ext_map_blocks.ext4_da_map_blocks
      3.47 ±  8%      -1.7        1.82 ± 13%  perf-profile.calltrace.cycles-pp.iov_iter_copy_from_user_atomic.generic_perform_write.ext4_buffered_write_iter.new_sync_write.vfs_write
      3.83 ±  2%      -1.6        2.20 ± 18%  perf-profile.calltrace.cycles-pp.__find_get_block.__getblk_gfp.__read_extent_tree_block.ext4_find_extent.ext4_ext_map_blocks
      3.42 ±  8%      -1.6        1.79 ± 13%  perf-profile.calltrace.cycles-pp.copyin.iov_iter_copy_from_user_atomic.generic_perform_write.ext4_buffered_write_iter.new_sync_write
      3.40 ±  8%      -1.6        1.78 ± 13%  perf-profile.calltrace.cycles-pp.copy_user_enhanced_fast_string.copyin.iov_iter_copy_from_user_atomic.generic_perform_write.ext4_buffered_write_iter
      3.09 ±  8%      -1.5        1.64 ± 15%  perf-profile.calltrace.cycles-pp.generic_write_end.ext4_da_write_end.generic_perform_write.ext4_buffered_write_iter.new_sync_write
      5.84 ±  2%      -1.4        4.44 ± 18%  perf-profile.calltrace.cycles-pp.ext4_ext_map_blocks.ext4_da_map_blocks.ext4_da_get_block_prep.ext4_block_write_begin.ext4_da_write_begin
      5.61            -1.3        4.30 ± 19%  perf-profile.calltrace.cycles-pp.ext4_find_extent.ext4_ext_map_blocks.ext4_da_map_blocks.ext4_da_get_block_prep.ext4_block_write_begin
      2.71 ±  8%      -1.3        1.45 ± 14%  perf-profile.calltrace.cycles-pp.block_write_end.generic_write_end.ext4_da_write_end.generic_perform_write.ext4_buffered_write_iter
      2.67 ±  9%      -1.2        1.43 ± 14%  perf-profile.calltrace.cycles-pp.__block_commit_write.block_write_end.generic_write_end.ext4_da_write_end.generic_perform_write
      1.62 ± 55%      -1.2        0.40 ± 57%  perf-profile.calltrace.cycles-pp.__alloc_pages_nodemask.pagecache_get_page.grab_cache_page_write_begin.ext4_da_write_begin.generic_perform_write
      3.06 ±  8%      -1.1        1.94 ±  4%  perf-profile.calltrace.cycles-pp.ext4_es_insert_extent.ext4_da_map_blocks.ext4_da_get_block_prep.ext4_block_write_begin.ext4_da_write_begin
      1.98 ±  4%      -1.1        0.87 ± 16%  perf-profile.calltrace.cycles-pp.add_to_page_cache_lru.pagecache_get_page.grab_cache_page_write_begin.ext4_da_write_begin.generic_perform_write
      2.36 ±  7%      -1.0        1.32 ± 18%  perf-profile.calltrace.cycles-pp.find_get_entry.pagecache_get_page.grab_cache_page_write_begin.ext4_da_write_begin.generic_perform_write
      2.33 ±  7%      -1.0        1.31 ± 18%  perf-profile.calltrace.cycles-pp.xas_load.find_get_entry.pagecache_get_page.grab_cache_page_write_begin.ext4_da_write_begin
      1.16 ± 11%      -0.9        0.27 ±100%  perf-profile.calltrace.cycles-pp.create_empty_buffers.ext4_block_write_begin.ext4_da_write_begin.generic_perform_write.ext4_buffered_write_iter
      1.57 ±  9%      -0.7        0.83 ± 11%  perf-profile.calltrace.cycles-pp.mark_buffer_dirty.__block_commit_write.block_write_end.generic_write_end.ext4_da_write_end
      1.11 ±  7%      -0.7        0.41 ± 57%  perf-profile.calltrace.cycles-pp.__add_to_page_cache_locked.add_to_page_cache_lru.pagecache_get_page.grab_cache_page_write_begin.ext4_da_write_begin
      0.93 ±  6%      -0.7        0.26 ±100%  perf-profile.calltrace.cycles-pp.entry_SYSCALL_64
      1.35 ± 11%      -0.6        0.70 ± 11%  perf-profile.calltrace.cycles-pp.__set_page_dirty.mark_buffer_dirty.__block_commit_write.block_write_end.generic_write_end
      0.88 ± 16%      -0.6        0.26 ±100%  perf-profile.calltrace.cycles-pp.__xa_set_mark.__set_page_dirty.mark_buffer_dirty.__block_commit_write.block_write_end
      0.88 ±  5%      -0.6        0.26 ±100%  perf-profile.calltrace.cycles-pp.syscall_return_via_sysret
      1.92 ±  7%      -0.6        1.36 ±  2%  perf-profile.calltrace.cycles-pp.__es_insert_extent.ext4_es_insert_extent.ext4_da_map_blocks.ext4_da_get_block_prep.ext4_block_write_begin
      1.67 ±  3%      -0.3        1.33 ± 18%  perf-profile.calltrace.cycles-pp.pagecache_get_page.__find_get_block.__getblk_gfp.__read_extent_tree_block.ext4_find_extent
      1.63 ±  3%      -0.3        1.31 ± 18%  perf-profile.calltrace.cycles-pp.find_get_entry.pagecache_get_page.__find_get_block.__getblk_gfp.__read_extent_tree_block
      0.71 ± 25%      +0.4        1.11 ± 12%  perf-profile.calltrace.cycles-pp.find_get_pages_range_tag.pagevec_lookup_range_tag.mpage_prepare_extent_to_map.ext4_writepages.do_writepages
      0.71 ± 25%      +0.4        1.12 ± 12%  perf-profile.calltrace.cycles-pp.pagevec_lookup_range_tag.mpage_prepare_extent_to_map.ext4_writepages.do_writepages.__writeback_single_inode
      0.00            +0.6        0.63 ± 11%  perf-profile.calltrace.cycles-pp.__es_insert_extent.ext4_es_insert_extent.ext4_map_blocks.mpage_map_and_submit_extent.ext4_writepages
      0.00            +0.7        0.71 ± 16%  perf-profile.calltrace.cycles-pp.ext4_bio_write_page.mpage_submit_page.mpage_map_and_submit_buffers.mpage_map_and_submit_extent.ext4_writepages
      0.00            +0.7        0.74 ± 16%  perf-profile.calltrace.cycles-pp.ext4_release_io_end.ext4_put_io_end.ext4_writepages.do_writepages.__writeback_single_inode
      0.00            +0.8        0.75 ± 13%  perf-profile.calltrace.cycles-pp.update_process_times.tick_sched_handle.tick_sched_timer.__hrtimer_run_queues.hrtimer_interrupt
      0.00            +0.8        0.78 ± 14%  perf-profile.calltrace.cycles-pp.ext4_es_insert_extent.ext4_map_blocks.ext4_convert_unwritten_extents.ext4_convert_unwritten_io_end_vec.ext4_put_io_end
      0.00            +0.8        0.80 ±  2%  perf-profile.calltrace.cycles-pp.tick_nohz_next_event.tick_nohz_get_sleep_length.menu_select.do_idle.cpu_startup_entry
      0.00            +0.8        0.80 ± 22%  perf-profile.calltrace.cycles-pp.es_do_reclaim_extents.es_reclaim_extents.__es_shrink.ext4_es_scan.do_shrink_slab
      0.00            +0.8        0.81 ± 22%  perf-profile.calltrace.cycles-pp.es_reclaim_extents.__es_shrink.ext4_es_scan.do_shrink_slab.shrink_slab
      0.00            +0.8        0.81 ± 13%  perf-profile.calltrace.cycles-pp.ext4_find_extent.ext4_ext_map_blocks.ext4_map_blocks.mpage_map_and_submit_extent.ext4_writepages
      0.00            +0.8        0.81 ± 22%  perf-profile.calltrace.cycles-pp.ext4_es_scan.do_shrink_slab.shrink_slab.shrink_node.balance_pgdat
      0.00            +0.8        0.81 ± 22%  perf-profile.calltrace.cycles-pp.__es_shrink.ext4_es_scan.do_shrink_slab.shrink_slab.shrink_node
      0.00            +0.8        0.82 ± 22%  perf-profile.calltrace.cycles-pp.shrink_slab.shrink_node.balance_pgdat.kswapd.kthread
      0.00            +0.8        0.82 ± 22%  perf-profile.calltrace.cycles-pp.do_shrink_slab.shrink_slab.shrink_node.balance_pgdat.kswapd
      0.00            +0.9        0.85 ± 16%  perf-profile.calltrace.cycles-pp.tick_sched_handle.tick_sched_timer.__hrtimer_run_queues.hrtimer_interrupt.smp_apic_timer_interrupt
      0.14 ±173%      +0.9        1.04 ± 14%  perf-profile.calltrace.cycles-pp.tick_sched_timer.__hrtimer_run_queues.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt
      0.00            +0.9        0.91 ± 15%  perf-profile.calltrace.cycles-pp.mpage_submit_page.mpage_map_and_submit_buffers.mpage_map_and_submit_extent.ext4_writepages.do_writepages
      0.00            +1.0        0.98 ± 18%  perf-profile.calltrace.cycles-pp.ext4_ext_map_blocks.ext4_map_blocks.ext4_convert_unwritten_extents.ext4_convert_unwritten_io_end_vec.ext4_put_io_end
      0.00            +1.0        1.02 ±  2%  perf-profile.calltrace.cycles-pp.tick_nohz_get_sleep_length.menu_select.do_idle.cpu_startup_entry.start_secondary
      0.71 ± 12%      +1.1        1.76 ± 12%  perf-profile.calltrace.cycles-pp.__hrtimer_run_queues.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt.cpuidle_enter_state
      0.00            +1.1        1.08 ± 12%  perf-profile.calltrace.cycles-pp.ext4_split_extent.ext4_split_convert_extents.ext4_ext_handle_unwritten_extents.ext4_ext_map_blocks.ext4_map_blocks
      0.00            +1.1        1.10 ± 12%  perf-profile.calltrace.cycles-pp.ext4_split_convert_extents.ext4_ext_handle_unwritten_extents.ext4_ext_map_blocks.ext4_map_blocks.mpage_map_and_submit_extent
      0.00            +1.1        1.12 ± 11%  perf-profile.calltrace.cycles-pp.ext4_ext_handle_unwritten_extents.ext4_ext_map_blocks.ext4_map_blocks.mpage_map_and_submit_extent.ext4_writepages
      0.00            +1.1        1.12 ± 15%  perf-profile.calltrace.cycles-pp.mpage_map_and_submit_buffers.mpage_map_and_submit_extent.ext4_writepages.do_writepages.__writeback_single_inode
      0.86 ± 36%      +1.1        2.00 ± 27%  perf-profile.calltrace.cycles-pp.__softirqentry_text_start.irq_exit.smp_apic_timer_interrupt.apic_timer_interrupt.cpuidle_enter_state
      0.00            +1.2        1.21 ± 11%  perf-profile.calltrace.cycles-pp.ext4_es_insert_extent.ext4_map_blocks.mpage_map_and_submit_extent.ext4_writepages.do_writepages
      0.82 ± 10%      +1.3        2.15 ±  6%  perf-profile.calltrace.cycles-pp.menu_select.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64
      0.43 ±113%      +1.3        1.76 ± 27%  perf-profile.calltrace.cycles-pp.__remove_mapping.shrink_page_list.shrink_inactive_list.shrink_lruvec.shrink_node
      0.00            +1.4        1.35 ± 28%  perf-profile.calltrace.cycles-pp.xas_create.xas_store.__delete_from_page_cache.__remove_mapping.shrink_page_list
      1.04 ± 33%      +1.4        2.42 ± 25%  perf-profile.calltrace.cycles-pp.irq_exit.smp_apic_timer_interrupt.apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter
      0.00            +1.4        1.38 ± 28%  perf-profile.calltrace.cycles-pp.xas_store.__delete_from_page_cache.__remove_mapping.shrink_page_list.shrink_inactive_list
      0.00            +1.6        1.56 ± 28%  perf-profile.calltrace.cycles-pp.__delete_from_page_cache.__remove_mapping.shrink_page_list.shrink_inactive_list.shrink_lruvec
      1.26 ± 16%      +1.6        2.88 ±  8%  perf-profile.calltrace.cycles-pp.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter
      0.00            +2.0        2.00 ± 16%  perf-profile.calltrace.cycles-pp.ext4_map_blocks.ext4_convert_unwritten_extents.ext4_convert_unwritten_io_end_vec.ext4_put_io_end.ext4_writepages
      0.00            +2.1        2.07 ± 12%  perf-profile.calltrace.cycles-pp.ext4_ext_map_blocks.ext4_map_blocks.mpage_map_and_submit_extent.ext4_writepages.do_writepages
      0.00            +2.3        2.28 ± 17%  perf-profile.calltrace.cycles-pp.pmem_make_request.generic_make_request.submit_bio.ext4_io_submit.ext4_writepages
      0.22 ±173%      +2.5        2.71 ± 27%  perf-profile.calltrace.cycles-pp.shrink_page_list.shrink_inactive_list.shrink_lruvec.shrink_node.balance_pgdat
      0.00            +2.5        2.49 ± 18%  perf-profile.calltrace.cycles-pp.generic_make_request.submit_bio.ext4_io_submit.ext4_writepages.do_writepages
      0.00            +2.5        2.50 ± 18%  perf-profile.calltrace.cycles-pp.submit_bio.ext4_io_submit.ext4_writepages.do_writepages.__writeback_single_inode
      0.00            +2.5        2.51 ± 17%  perf-profile.calltrace.cycles-pp.ext4_io_submit.ext4_writepages.do_writepages.__writeback_single_inode.writeback_sb_inodes
      0.00            +2.6        2.58 ± 15%  perf-profile.calltrace.cycles-pp.ext4_convert_unwritten_extents.ext4_convert_unwritten_io_end_vec.ext4_put_io_end.ext4_writepages.do_writepages
      0.24 ±173%      +2.7        2.89 ± 26%  perf-profile.calltrace.cycles-pp.shrink_inactive_list.shrink_lruvec.shrink_node.balance_pgdat.kswapd
      0.24 ±173%      +2.7        2.90 ± 26%  perf-profile.calltrace.cycles-pp.shrink_lruvec.shrink_node.balance_pgdat.kswapd.kthread
      0.00            +2.9        2.94 ± 14%  perf-profile.calltrace.cycles-pp.ext4_convert_unwritten_io_end_vec.ext4_put_io_end.ext4_writepages.do_writepages.__writeback_single_inode
      0.34 ±173%      +3.4        3.72 ± 25%  perf-profile.calltrace.cycles-pp.shrink_node.balance_pgdat.kswapd.kthread.ret_from_fork
      0.34 ±173%      +3.4        3.73 ± 25%  perf-profile.calltrace.cycles-pp.balance_pgdat.kswapd.kthread.ret_from_fork
      0.34 ±173%      +3.4        3.73 ± 25%  perf-profile.calltrace.cycles-pp.kswapd.kthread.ret_from_fork
      2.54 ± 20%      +3.4        5.97 ± 12%  perf-profile.calltrace.cycles-pp.smp_apic_timer_interrupt.apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter.do_idle
      2.73 ± 19%      +3.7        6.42 ± 11%  perf-profile.calltrace.cycles-pp.apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter.do_idle.cpu_startup_entry
      0.00            +4.0        3.99 ± 15%  perf-profile.calltrace.cycles-pp.ext4_put_io_end.ext4_writepages.do_writepages.__writeback_single_inode.writeback_sb_inodes
      0.00            +4.6        4.57 ± 12%  perf-profile.calltrace.cycles-pp.ext4_map_blocks.mpage_map_and_submit_extent.ext4_writepages.do_writepages.__writeback_single_inode
     10.05 ± 24%      +4.8       14.88 ± 14%  perf-profile.calltrace.cycles-pp.wb_workfn.process_one_work.worker_thread.kthread.ret_from_fork
     10.05 ± 24%      +4.8       14.88 ± 14%  perf-profile.calltrace.cycles-pp.wb_writeback.wb_workfn.process_one_work.worker_thread.kthread
     10.05 ± 24%      +4.8       14.88 ± 14%  perf-profile.calltrace.cycles-pp.__writeback_inodes_wb.wb_writeback.wb_workfn.process_one_work.worker_thread
     10.05 ± 24%      +4.8       14.88 ± 14%  perf-profile.calltrace.cycles-pp.writeback_sb_inodes.__writeback_inodes_wb.wb_writeback.wb_workfn.process_one_work
     10.05 ± 24%      +4.8       14.88 ± 14%  perf-profile.calltrace.cycles-pp.__writeback_single_inode.writeback_sb_inodes.__writeback_inodes_wb.wb_writeback.wb_workfn
     10.05 ± 24%      +4.8       14.88 ± 14%  perf-profile.calltrace.cycles-pp.do_writepages.__writeback_single_inode.writeback_sb_inodes.__writeback_inodes_wb.wb_writeback
     10.01 ± 24%      +4.8       14.85 ± 14%  perf-profile.calltrace.cycles-pp.ext4_writepages.do_writepages.__writeback_single_inode.writeback_sb_inodes.__writeback_inodes_wb
     10.13 ± 24%      +4.9       14.99 ± 14%  perf-profile.calltrace.cycles-pp.process_one_work.worker_thread.kthread.ret_from_fork
     10.13 ± 24%      +4.9       15.00 ± 14%  perf-profile.calltrace.cycles-pp.worker_thread.kthread.ret_from_fork
      0.00            +5.8        5.84 ± 12%  perf-profile.calltrace.cycles-pp.mpage_map_and_submit_extent.ext4_writepages.do_writepages.__writeback_single_inode.writeback_sb_inodes
     10.93 ± 21%      +8.0       18.96 ± 16%  perf-profile.calltrace.cycles-pp.ret_from_fork
     10.93 ± 21%      +8.0       18.96 ± 16%  perf-profile.calltrace.cycles-pp.kthread.ret_from_fork
     34.76 ±  5%      +9.6       44.39 ± 12%  perf-profile.calltrace.cycles-pp.intel_idle.cpuidle_enter_state.cpuidle_enter.do_idle.cpu_startup_entry
     36.24 ±  6%     +15.2       51.42 ±  9%  perf-profile.calltrace.cycles-pp.cpuidle_enter_state.cpuidle_enter.do_idle.cpu_startup_entry.start_secondary
     36.41 ±  6%     +15.4       51.83 ±  9%  perf-profile.calltrace.cycles-pp.cpuidle_enter.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64
     38.99 ±  5%     +16.5       55.50 ±  9%  perf-profile.calltrace.cycles-pp.secondary_startup_64
     37.52 ±  6%     +17.2       54.72 ±  9%  perf-profile.calltrace.cycles-pp.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64
     37.52 ±  6%     +17.2       54.74 ±  9%  perf-profile.calltrace.cycles-pp.cpu_startup_entry.start_secondary.secondary_startup_64
     37.52 ±  6%     +17.2       54.74 ±  9%  perf-profile.calltrace.cycles-pp.start_secondary.secondary_startup_64
     47.75 ±  6%     -25.4       22.31 ± 13%  perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
     47.59 ±  6%     -25.4       22.22 ± 13%  perf-profile.children.cycles-pp.do_syscall_64
     37.76 ±  7%     -17.4       20.36 ± 14%  perf-profile.children.cycles-pp.ksys_write
     37.56 ±  7%     -17.3       20.25 ± 14%  perf-profile.children.cycles-pp.vfs_write
     36.53 ±  7%     -16.8       19.72 ± 14%  perf-profile.children.cycles-pp.new_sync_write
     36.31 ±  7%     -16.7       19.60 ± 14%  perf-profile.children.cycles-pp.ext4_buffered_write_iter
     35.67 ±  7%     -16.5       19.16 ± 14%  perf-profile.children.cycles-pp.generic_perform_write
     27.10 ±  8%     -12.2       14.86 ± 14%  perf-profile.children.cycles-pp.ext4_da_write_begin
      9.09 ± 24%      -8.8        0.28 ± 23%  perf-profile.children.cycles-pp.mpage_process_page_bufs
     10.03 ± 24%      -8.3        1.76 ± 14%  perf-profile.children.cycles-pp.mpage_prepare_extent_to_map
      8.57 ± 24%      -7.7        0.91 ± 15%  perf-profile.children.cycles-pp.mpage_submit_page
      8.09 ± 24%      -7.4        0.71 ± 16%  perf-profile.children.cycles-pp.ext4_bio_write_page
      6.49 ± 61%      -6.5        0.00        perf-profile.children.cycles-pp.__x64_sys_fadvise64
      6.49 ± 61%      -6.5        0.00        perf-profile.children.cycles-pp.ksys_fadvise64_64
      6.49 ± 61%      -6.5        0.00        perf-profile.children.cycles-pp.generic_fadvise
     17.01 ±  5%      -6.3       10.73 ± 14%  perf-profile.children.cycles-pp.ext4_block_write_begin
      6.14 ± 64%      -6.1        0.00        perf-profile.children.cycles-pp.invalidate_mapping_pages
     15.75 ±  5%      -5.5       10.21 ± 14%  perf-profile.children.cycles-pp.ext4_da_get_block_prep
     15.59 ±  5%      -5.5       10.09 ± 14%  perf-profile.children.cycles-pp.ext4_da_map_blocks
      6.57 ± 23%      -4.1        2.51 ± 17%  perf-profile.children.cycles-pp.ext4_io_submit
      6.59 ± 23%      -4.0        2.60 ± 17%  perf-profile.children.cycles-pp.submit_bio
      6.58 ± 23%      -4.0        2.59 ± 17%  perf-profile.children.cycles-pp.generic_make_request
      6.20 ± 23%      -3.8        2.37 ± 17%  perf-profile.children.cycles-pp.pmem_make_request
      7.76 ± 13%      -3.7        4.10 ± 17%  perf-profile.children.cycles-pp.pagecache_get_page
      4.23 ± 54%      -3.4        0.86 ± 27%  perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
      6.12 ± 16%      -3.4        2.75 ± 17%  perf-profile.children.cycles-pp.grab_cache_page_write_begin
      3.75 ± 57%      -2.8        0.94 ± 26%  perf-profile.children.cycles-pp._raw_spin_lock_irqsave
      4.60 ±  8%      -2.4        2.19 ± 14%  perf-profile.children.cycles-pp.ext4_da_write_end
      6.42 ±  9%      -2.3        4.11 ± 13%  perf-profile.children.cycles-pp.ext4_es_lookup_extent
      3.67 ± 22%      -2.0        1.70 ± 20%  perf-profile.children.cycles-pp.pmem_do_bvec
      3.65 ± 22%      -2.0        1.70 ± 20%  perf-profile.children.cycles-pp.write_pmem
      3.62 ± 22%      -1.9        1.68 ± 20%  perf-profile.children.cycles-pp.__memcpy_flushcache
      3.68 ± 12%      -1.9        1.74 ± 10%  perf-profile.children.cycles-pp.__ext4_journal_start_sb
      2.31 ± 25%      -1.8        0.50 ± 16%  perf-profile.children.cycles-pp.ext4_end_bio
      3.48 ±  8%      -1.7        1.83 ± 13%  perf-profile.children.cycles-pp.iov_iter_copy_from_user_atomic
      3.44 ±  8%      -1.6        1.80 ± 13%  perf-profile.children.cycles-pp.copyin
      3.42 ±  8%      -1.6        1.79 ± 13%  perf-profile.children.cycles-pp.copy_user_enhanced_fast_string
      3.77 ±  6%      -1.6        2.16 ± 15%  perf-profile.children.cycles-pp.xas_load
      3.02 ± 12%      -1.6        1.44 ± 11%  perf-profile.children.cycles-pp.jbd2__journal_start
      3.11 ±  8%      -1.5        1.65 ± 15%  perf-profile.children.cycles-pp.generic_write_end
      2.84 ± 12%      -1.4        1.45 ± 11%  perf-profile.children.cycles-pp.start_this_handle
      4.02 ±  5%      -1.4        2.67 ± 18%  perf-profile.children.cycles-pp.find_get_entry
      2.72 ±  8%      -1.3        1.46 ± 14%  perf-profile.children.cycles-pp.block_write_end
      2.67 ±  9%      -1.2        1.44 ± 14%  perf-profile.children.cycles-pp.__block_commit_write
      1.73 ± 53%      -1.2        0.53 ± 10%  perf-profile.children.cycles-pp.__alloc_pages_nodemask
      3.94 ±  2%      -1.1        2.81 ± 16%  perf-profile.children.cycles-pp.__find_get_block
      1.98 ±  4%      -1.1        0.87 ± 16%  perf-profile.children.cycles-pp.add_to_page_cache_lru
      4.07 ±  2%      -1.0        3.06 ± 16%  perf-profile.children.cycles-pp.__getblk_gfp
      4.10 ±  2%      -1.0        3.12 ± 15%  perf-profile.children.cycles-pp.__read_extent_tree_block
      1.88 ± 11%      -0.8        1.03 ± 11%  perf-profile.children.cycles-pp._raw_spin_lock
      1.58 ±  9%      -0.7        0.84 ± 11%  perf-profile.children.cycles-pp.mark_buffer_dirty
      1.17 ± 10%      -0.7        0.47 ± 18%  perf-profile.children.cycles-pp.create_empty_buffers
      1.36 ± 11%      -0.6        0.71 ± 10%  perf-profile.children.cycles-pp.__set_page_dirty
      0.82 ± 29%      -0.6        0.20 ± 20%  perf-profile.children.cycles-pp.__list_del_entry_valid
      1.12 ±  7%      -0.6        0.51 ± 15%  perf-profile.children.cycles-pp.__add_to_page_cache_locked
      1.02 ±  6%      -0.5        0.47 ± 11%  perf-profile.children.cycles-pp.get_page_from_freelist
      1.10 ± 18%      -0.5        0.56 ± 15%  perf-profile.children.cycles-pp.ext4_finish_bio
      1.27 ± 10%      -0.5        0.73 ±  9%  perf-profile.children.cycles-pp.jbd2_journal_stop
      1.32 ± 11%      -0.5        0.83 ±  8%  perf-profile.children.cycles-pp.__ext4_journal_stop
      1.02 ±  5%      -0.5        0.54 ± 11%  perf-profile.children.cycles-pp.syscall_return_via_sysret
      0.82 ±  7%      -0.5        0.35 ± 17%  perf-profile.children.cycles-pp.__lru_cache_add
      0.94 ±  6%      -0.5        0.48 ± 16%  perf-profile.children.cycles-pp.entry_SYSCALL_64
      0.76 ±  8%      -0.4        0.31 ±  6%  perf-profile.children.cycles-pp.rmqueue
      0.74 ±  8%      -0.4        0.30 ± 18%  perf-profile.children.cycles-pp.pagevec_lru_move_fn
      0.87 ± 18%      -0.4        0.43 ± 16%  perf-profile.children.cycles-pp.end_page_writeback
      0.86 ± 18%      -0.4        0.43 ± 17%  perf-profile.children.cycles-pp.test_clear_page_writeback
      0.72 ± 11%      -0.4        0.30 ± 18%  perf-profile.children.cycles-pp.alloc_page_buffers
      0.72 ± 19%      -0.4        0.31 ±  9%  perf-profile.children.cycles-pp.__test_set_page_writeback
      0.95 ± 12%      -0.4        0.54 ± 18%  perf-profile.children.cycles-pp._raw_read_lock
      0.88 ± 16%      -0.4        0.48 ± 10%  perf-profile.children.cycles-pp.__xa_set_mark
      0.66 ± 13%      -0.4        0.27 ± 17%  perf-profile.children.cycles-pp.alloc_buffer_head
      0.51 ±  9%      -0.4        0.14 ± 18%  perf-profile.children.cycles-pp.rmqueue_bulk
      0.73 ±  4%      -0.4        0.37 ± 14%  perf-profile.children.cycles-pp.security_file_permission
      0.72 ± 17%      -0.3        0.39 ± 10%  perf-profile.children.cycles-pp.xas_set_mark
      0.68 ±  5%      -0.3        0.34 ± 16%  perf-profile.children.cycles-pp.common_file_perm
      0.64 ± 13%      -0.3        0.33 ±  4%  perf-profile.children.cycles-pp.ext4_journal_check_start
      0.67 ± 10%      -0.3        0.38 ± 15%  perf-profile.children.cycles-pp.add_transaction_credits
      0.48 ± 18%      -0.3        0.21 ± 12%  perf-profile.children.cycles-pp.clear_page_dirty_for_io
      0.53 ±  6%      -0.3        0.26 ± 18%  perf-profile.children.cycles-pp.aa_file_perm
      0.40 ± 15%      -0.3        0.14 ± 23%  perf-profile.children.cycles-pp.workingset_update_node
      0.45 ±  6%      -0.2        0.21 ± 12%  perf-profile.children.cycles-pp.__mod_lruvec_state
      0.43 ± 25%      -0.2        0.20 ± 23%  perf-profile.children.cycles-pp.bio_alloc_bioset
      0.42 ± 13%      -0.2        0.21 ± 19%  perf-profile.children.cycles-pp.ksys_lseek
      0.43 ±  3%      -0.2        0.23 ± 19%  perf-profile.children.cycles-pp.__pagevec_lru_add_fn
      0.37 ±  4%      -0.2        0.17 ± 15%  perf-profile.children.cycles-pp.account_page_dirtied
      0.33 ± 26%      -0.2        0.14 ± 20%  perf-profile.children.cycles-pp.new_slab
      0.32 ± 24%      -0.2        0.17 ± 25%  perf-profile.children.cycles-pp.mempool_alloc
      0.27 ±  9%      -0.1        0.14 ± 20%  perf-profile.children.cycles-pp.__fdget_pos
      0.20 ±  8%      -0.1        0.08 ± 24%  perf-profile.children.cycles-pp.xas_start
      0.31 ± 22%      -0.1        0.19 ± 19%  perf-profile.children.cycles-pp.generic_make_request_checks
      0.24 ± 22%      -0.1        0.12 ± 15%  perf-profile.children.cycles-pp._raw_spin_lock_irq
      0.23 ± 11%      -0.1        0.12 ± 20%  perf-profile.children.cycles-pp.__fget_light
      0.44 ±  8%      -0.1        0.33 ±  9%  perf-profile.children.cycles-pp.stop_this_handle
      0.20 ±  5%      -0.1        0.10 ±  9%  perf-profile.children.cycles-pp.__mod_node_page_state
      0.18 ± 12%      -0.1        0.08 ±  8%  perf-profile.children.cycles-pp.mem_cgroup_commit_charge
      0.18 ±  9%      -0.1        0.08 ± 15%  perf-profile.children.cycles-pp.mem_cgroup_try_charge
      0.20 ±  7%      -0.1        0.10 ± 22%  perf-profile.children.cycles-pp.page_mapping
      0.19 ± 17%      -0.1        0.10 ± 13%  perf-profile.children.cycles-pp.ext4_llseek
      0.18 ± 25%      -0.1        0.09 ± 20%  perf-profile.children.cycles-pp.bvec_alloc
      0.12 ± 21%      -0.1        0.04 ± 59%  perf-profile.children.cycles-pp.dec_zone_page_state
      0.18 ± 11%      -0.1        0.11 ± 13%  perf-profile.children.cycles-pp.unlock_page
      0.16 ±  5%      -0.1        0.08 ± 15%  perf-profile.children.cycles-pp.__mod_memcg_state
      0.19 ± 14%      -0.1        0.11 ± 25%  perf-profile.children.cycles-pp.node_dirty_ok
      0.12 ± 19%      -0.1        0.04 ± 57%  perf-profile.children.cycles-pp.get_mem_cgroup_from_mm
      0.16 ± 21%      -0.1        0.09 ± 16%  perf-profile.children.cycles-pp.__xa_clear_mark
      0.14 ±  3%      -0.1        0.07 ± 12%  perf-profile.children.cycles-pp.iov_iter_fault_in_readable
      0.12 ± 16%      -0.1        0.06 ±  9%  perf-profile.children.cycles-pp.mem_cgroup_charge_statistics
      0.09 ± 20%      -0.1        0.03 ±100%  perf-profile.children.cycles-pp.blk_throtl_bio
      0.12 ±  9%      -0.0        0.08 ± 10%  perf-profile.children.cycles-pp.down_read
      0.10 ±  5%      -0.0        0.07 ± 17%  perf-profile.children.cycles-pp.ext4_file_write_iter
      0.18 ±  3%      +0.0        0.20 ±  4%  perf-profile.children.cycles-pp.__x86_indirect_thunk_rax
      0.06 ± 13%      +0.0        0.10 ± 15%  perf-profile.children.cycles-pp.update_load_avg
      0.07 ± 17%      +0.0        0.11 ± 10%  perf-profile.children.cycles-pp.mark_page_accessed
      0.03 ±100%      +0.0        0.07 ±  5%  perf-profile.children.cycles-pp.kfree
      0.21 ±  7%      +0.0        0.25 ± 14%  perf-profile.children.cycles-pp.__kmalloc
      0.13 ±  8%      +0.0        0.17 ± 15%  perf-profile.children.cycles-pp.memset_erms
      0.19 ±  6%      +0.0        0.24 ± 11%  perf-profile.children.cycles-pp.__might_sleep
      0.00            +0.1        0.05        perf-profile.children.cycles-pp.ext4_init_io_end
      0.00            +0.1        0.06 ±  9%  perf-profile.children.cycles-pp.schedule
      0.00            +0.1        0.06 ± 22%  perf-profile.children.cycles-pp.account_process_tick
      0.00            +0.1        0.06 ±  7%  perf-profile.children.cycles-pp.rcu_eqs_enter
      0.00            +0.1        0.06 ± 14%  perf-profile.children.cycles-pp.call_cpuidle
      0.01 ±173%      +0.1        0.07 ± 26%  perf-profile.children.cycles-pp.timekeeping_max_deferment
      0.00            +0.1        0.06 ± 20%  perf-profile.children.cycles-pp.__isolate_lru_page
      0.02 ±173%      +0.1        0.08 ± 37%  perf-profile.children.cycles-pp.delay_tsc
      0.00            +0.1        0.06 ± 13%  perf-profile.children.cycles-pp.rcu_irq_exit
      0.28 ±  5%      +0.1        0.34 ±  2%  perf-profile.children.cycles-pp._raw_spin_unlock_irqrestore
      0.07 ± 15%      +0.1        0.14 ± 28%  perf-profile.children.cycles-pp.native_apic_msr_eoi_write
      0.00            +0.1        0.07 ± 17%  perf-profile.children.cycles-pp.schedule_idle
      0.00            +0.1        0.07 ± 23%  perf-profile.children.cycles-pp.__hrtimer_get_next_event
      0.21 ±  4%      +0.1        0.28 ± 12%  perf-profile.children.cycles-pp.__brelse
      0.03 ±100%      +0.1        0.09 ± 15%  perf-profile.children.cycles-pp.timerqueue_add
      0.00            +0.1        0.07 ± 16%  perf-profile.children.cycles-pp.ext4_data_block_valid
      0.00            +0.1        0.07 ± 33%  perf-profile.children.cycles-pp.__update_load_avg_cfs_rq
      0.03 ±100%      +0.1        0.10 ± 11%  perf-profile.children.cycles-pp.__intel_pmu_enable_all
      0.00            +0.1        0.07 ± 10%  perf-profile.children.cycles-pp._raw_write_lock
      0.05 ± 58%      +0.1        0.12 ±  5%  perf-profile.children.cycles-pp.__sched_text_start
      0.05 ±  8%      +0.1        0.12 ±  8%  perf-profile.children.cycles-pp.__remove_hrtimer
      0.00            +0.1        0.07 ± 17%  perf-profile.children.cycles-pp.idle_cpu
      0.01 ±173%      +0.1        0.09 ± 31%  perf-profile.children.cycles-pp.update_rq_clock
      0.03 ±100%      +0.1        0.10 ± 16%  perf-profile.children.cycles-pp.rcu_idle_exit
      0.00            +0.1        0.07 ± 30%  perf-profile.children.cycles-pp.crypto_shash_update
      0.00            +0.1        0.07 ± 33%  perf-profile.children.cycles-pp.pm_qos_request
      0.07 ± 17%      +0.1        0.14 ± 22%  perf-profile.children.cycles-pp.__hrtimer_next_event_base
      0.00            +0.1        0.08 ± 19%  perf-profile.children.cycles-pp.hrtimer_get_next_event
      0.00            +0.1        0.08 ± 14%  perf-profile.children.cycles-pp.rcu_dynticks_eqs_exit
      0.00            +0.1        0.08 ± 17%  perf-profile.children.cycles-pp.__check_block_validity
      0.00            +0.1        0.08 ± 17%  perf-profile.children.cycles-pp.ext4_inode_csum
      0.00            +0.1        0.08 ±  8%  perf-profile.children.cycles-pp.ext4_alloc_io_end_vec
      0.03 ±100%      +0.1        0.11 ± 21%  perf-profile.children.cycles-pp.submit_bh_wbc
      0.03 ±100%      +0.1        0.11 ± 22%  perf-profile.children.cycles-pp.enqueue_hrtimer
      0.00            +0.1        0.09 ± 26%  perf-profile.children.cycles-pp.tsc_verify_tsc_adjust
      0.03 ±100%      +0.1        0.11 ± 22%  perf-profile.children.cycles-pp.ktime_get_update_offsets_now
      0.01 ±173%      +0.1        0.10 ± 24%  perf-profile.children.cycles-pp.interrupt_entry
      0.00            +0.1        0.09 ± 30%  perf-profile.children.cycles-pp.run_posix_cpu_timers
      0.00            +0.1        0.09 ± 24%  perf-profile.children.cycles-pp.ksoftirqd_running
      0.00            +0.1        0.09 ± 17%  perf-profile.children.cycles-pp.timerqueue_del
      0.01 ±173%      +0.1        0.10 ± 58%  perf-profile.children.cycles-pp.tick_check_oneshot_broadcast_this_cpu
      0.00            +0.1        0.09 ± 19%  perf-profile.children.cycles-pp.ext4_inode_csum_set
      0.00            +0.1        0.09 ± 24%  perf-profile.children.cycles-pp.arch_cpu_idle_enter
      0.14 ±  6%      +0.1        0.23 ±  7%  perf-profile.children.cycles-pp.ext4_ext_drop_refs
      0.00            +0.1        0.10 ± 15%  perf-profile.children.cycles-pp.rwsem_down_read_slowpath
      0.00            +0.1        0.10 ± 27%  perf-profile.children.cycles-pp.ext4_extent_block_csum_set
      0.00            +0.1        0.10 ± 12%  perf-profile.children.cycles-pp.find_get_pages_range
      0.05 ±  9%      +0.1        0.16 ± 19%  perf-profile.children.cycles-pp.native_sched_clock
      0.00            +0.1        0.10 ± 17%  perf-profile.children.cycles-pp.jbd2_write_access_granted
      0.00            +0.1        0.10 ± 14%  perf-profile.children.cycles-pp.pagevec_lookup_range
      0.00            +0.1        0.10 ± 22%  perf-profile.children.cycles-pp.nr_iowait_cpu
      0.00            +0.1        0.10 ± 24%  perf-profile.children.cycles-pp.update_ts_time_stats
      0.00            +0.1        0.10 ± 35%  perf-profile.children.cycles-pp.pm_qos_read_value
      0.07 ± 31%      +0.1        0.18 ± 14%  perf-profile.children.cycles-pp.note_gp_changes
      0.06 ± 14%      +0.1        0.16 ± 11%  perf-profile.children.cycles-pp.hrtimer_next_event_without
      0.06 ± 13%      +0.1        0.17 ± 16%  perf-profile.children.cycles-pp.__ext4_get_inode_loc
      0.00            +0.1        0.11 ± 10%  perf-profile.children.cycles-pp.rwsem_spin_on_owner
      0.00            +0.1        0.11 ± 24%  perf-profile.children.cycles-pp.rwsem_down_write_slowpath
      0.08 ± 19%      +0.1        0.20 ± 20%  perf-profile.children.cycles-pp.rcu_sched_clock_irq
      0.06 ± 11%      +0.1        0.17 ± 20%  perf-profile.children.cycles-pp.sched_clock
      0.04 ±101%      +0.1        0.16 ± 18%  perf-profile.children.cycles-pp.isolate_lru_pages
      0.01 ±173%      +0.1        0.13 ± 12%  perf-profile.children.cycles-pp.ext4_es_free_extent
      0.23 ± 11%      +0.1        0.35 ±  3%  perf-profile.children.cycles-pp.read_tsc
      0.00            +0.1        0.12 ± 12%  perf-profile.children.cycles-pp.crc_1
      0.00            +0.1        0.12 ± 37%  perf-profile.children.cycles-pp.osq_lock
      0.00            +0.1        0.12 ± 27%  perf-profile.children.cycles-pp.__ext4_ext_dirty
      0.10 ± 30%      +0.1        0.22 ± 42%  perf-profile.children.cycles-pp.tick_nohz_irq_exit
      0.24 ± 18%      +0.1        0.36 ± 11%  perf-profile.children.cycles-pp.xas_find_marked
      0.00            +0.1        0.13 ± 38%  perf-profile.children.cycles-pp.mutex_lock_io
      0.00            +0.1        0.13 ± 38%  perf-profile.children.cycles-pp.__mutex_lock
      0.14 ±  6%      +0.1        0.27 ± 10%  perf-profile.children.cycles-pp.native_irq_return_iret
      0.07 ± 11%      +0.1        0.21 ± 20%  perf-profile.children.cycles-pp.sched_clock_cpu
      0.09 ±  7%      +0.1        0.23 ±  8%  perf-profile.children.cycles-pp.find_next_bit
      0.08 ± 19%      +0.1        0.23 ± 14%  perf-profile.children.cycles-pp.io_serial_in
      0.00            +0.1        0.14 ± 31%  perf-profile.children.cycles-pp.__jbd2_log_wait_for_space
      0.00            +0.1        0.14 ± 31%  perf-profile.children.cycles-pp.jbd2_log_do_checkpoint
      0.06 ± 16%      +0.1        0.21 ± 27%  perf-profile.children.cycles-pp.jbd2_journal_commit_transaction
      0.06 ± 16%      +0.1        0.21 ± 27%  perf-profile.children.cycles-pp.kjournald2
      0.00            +0.2        0.15 ± 19%  perf-profile.children.cycles-pp.jbd2_journal_get_write_access
      0.00            +0.2        0.15 ± 17%  perf-profile.children.cycles-pp.ext4_ext_try_to_merge_right
      0.07 ± 34%      +0.2        0.23 ± 30%  perf-profile.children.cycles-pp.update_sd_lb_stats
      0.17 ±  5%      +0.2        0.33 ± 10%  perf-profile.children.cycles-pp.lapic_next_deadline
      0.07 ± 10%      +0.2        0.23 ± 14%  perf-profile.children.cycles-pp.ext4_reserve_inode_write
      0.00            +0.2        0.16 ± 16%  perf-profile.children.cycles-pp.ext4_ext_try_to_merge
      0.00            +0.2        0.17 ± 13%  perf-profile.children.cycles-pp.jbd2_journal_dirty_metadata
      0.08 ± 37%      +0.2        0.25 ± 31%  perf-profile.children.cycles-pp.find_busiest_group
      0.08 ± 62%      +0.2        0.26 ± 23%  perf-profile.children.cycles-pp.wait_for_xmitr
      0.09 ± 59%      +0.2        0.26 ± 24%  perf-profile.children.cycles-pp.uart_console_write
      0.22 ± 12%      +0.2        0.40 ±  9%  perf-profile.children.cycles-pp.scheduler_tick
      0.08 ± 63%      +0.2        0.26 ± 23%  perf-profile.children.cycles-pp.serial8250_console_putchar
      0.09 ± 60%      +0.2        0.27 ± 21%  perf-profile.children.cycles-pp.serial8250_console_write
      0.09 ± 60%      +0.2        0.27 ± 23%  perf-profile.children.cycles-pp.console_unlock
      0.18 ±  4%      +0.2        0.36 ±  8%  perf-profile.children.cycles-pp.native_write_msr
      0.10 ± 62%      +0.2        0.28 ± 22%  perf-profile.children.cycles-pp.irq_work_run_list
      0.00            +0.2        0.19 ± 16%  perf-profile.children.cycles-pp.rwsem_optimistic_spin
      0.09 ± 10%      +0.2        0.28 ± 27%  perf-profile.children.cycles-pp.cpuidle_governor_latency_req
      0.20 ± 15%      +0.2        0.40 ± 16%  perf-profile.children.cycles-pp.rb_next
      0.14 ± 28%      +0.2        0.34 ± 33%  perf-profile.children.cycles-pp.update_blocked_averages
      0.15 ± 33%      +0.2        0.35 ± 31%  perf-profile.children.cycles-pp.run_timer_softirq
      0.14 ± 36%      +0.2        0.35 ± 32%  perf-profile.children.cycles-pp.__run_timers
      0.17 ±  6%      +0.2        0.38 ± 15%  perf-profile.children.cycles-pp.perf_mux_hrtimer_handler
      0.15 ± 31%      +0.2        0.36 ± 33%  perf-profile.children.cycles-pp.run_rebalance_domains
      0.14 ± 34%      +0.2        0.37 ± 20%  perf-profile.children.cycles-pp.rb_erase
      0.13 ±  5%      +0.2        0.36 ± 11%  perf-profile.children.cycles-pp.__next_timer_interrupt
      0.00            +0.2        0.23 ± 16%  perf-profile.children.cycles-pp.memmove
      0.11 ± 25%      +0.2        0.35 ± 23%  perf-profile.children.cycles-pp.tick_irq_enter
      0.13 ± 31%      +0.2        0.38 ± 29%  perf-profile.children.cycles-pp.load_balance
      0.00            +0.2        0.25 ± 12%  perf-profile.children.cycles-pp.__ext4_handle_dirty_metadata
      0.00            +0.2        0.25 ± 16%  perf-profile.children.cycles-pp.__ext4_journal_get_write_access
      0.00            +0.3        0.25 ±  8%  perf-profile.children.cycles-pp.__wake_up_common_lock
      0.79 ± 12%      +0.3        1.05 ± 10%  perf-profile.children.cycles-pp.__es_tree_search
      0.00            +0.3        0.27 ± 18%  perf-profile.children.cycles-pp.ext4_ext_insert_extent
      0.14 ± 20%      +0.3        0.42 ± 24%  perf-profile.children.cycles-pp.irq_enter
      0.00            +0.3        0.28 ± 12%  perf-profile.children.cycles-pp.jbd2_journal_start_reserved
      0.20 ± 38%      +0.3        0.50 ± 30%  perf-profile.children.cycles-pp.rebalance_domains
      0.18 ± 46%      +0.3        0.49 ± 30%  perf-profile.children.cycles-pp.get_partial_node
      0.03 ±100%      +0.3        0.35 ± 11%  perf-profile.children.cycles-pp.ext4_do_update_inode
      0.95 ± 11%      +0.3        1.27 ±  9%  perf-profile.children.cycles-pp.__es_remove_extent
      0.20 ±  3%      +0.3        0.53 ± 10%  perf-profile.children.cycles-pp.get_next_timer_interrupt
      0.00            +0.3        0.35 ±  9%  perf-profile.children.cycles-pp.__ext4_journal_start_reserved
      0.03 ±100%      +0.4        0.38 ± 13%  perf-profile.children.cycles-pp.ext4_mark_iloc_dirty
      0.00            +0.4        0.36 ± 14%  perf-profile.children.cycles-pp.__es_find_extent_range
      0.00            +0.4        0.36 ± 11%  perf-profile.children.cycles-pp.crc32c_pcl_intel_update
      0.00            +0.4        0.37 ± 15%  perf-profile.children.cycles-pp.__es_scan_range
      0.74 ± 21%      +0.4        1.11 ± 12%  perf-profile.children.cycles-pp.find_get_pages_range_tag
      0.74 ± 21%      +0.4        1.12 ± 12%  perf-profile.children.cycles-pp.pagevec_lookup_range_tag
      0.00            +0.4        0.42 ± 15%  perf-profile.children.cycles-pp.ext4_es_scan_range
      2.03 ±  7%      +0.5        2.48 ±  6%  perf-profile.children.cycles-pp.__es_insert_extent
      0.43 ± 15%      +0.5        0.90 ± 10%  perf-profile.children.cycles-pp.update_process_times
      0.29 ± 58%      +0.5        0.81 ± 22%  perf-profile.children.cycles-pp.es_reclaim_extents
      0.29 ± 58%      +0.5        0.81 ± 22%  perf-profile.children.cycles-pp.es_do_reclaim_extents
      0.30 ± 58%      +0.5        0.81 ± 22%  perf-profile.children.cycles-pp.ext4_es_scan
      0.30 ± 58%      +0.5        0.81 ± 22%  perf-profile.children.cycles-pp.__es_shrink
      0.30 ± 59%      +0.5        0.82 ± 22%  perf-profile.children.cycles-pp.shrink_slab
      0.30 ± 59%      +0.5        0.82 ± 22%  perf-profile.children.cycles-pp.do_shrink_slab
      0.12 ± 18%      +0.5        0.65 ± 14%  perf-profile.children.cycles-pp.ext4_mark_inode_dirty
      0.30 ± 12%      +0.5        0.83 ±  2%  perf-profile.children.cycles-pp.tick_nohz_next_event
      0.46 ± 14%      +0.5        0.99 ± 12%  perf-profile.children.cycles-pp.tick_sched_handle
      0.00            +0.6        0.59 ± 15%  perf-profile.children.cycles-pp.ext4_split_extent_at
      0.56 ± 17%      +0.6        1.21 ± 12%  perf-profile.children.cycles-pp.tick_sched_timer
      0.38 ±  9%      +0.7        1.04 ±  2%  perf-profile.children.cycles-pp.tick_nohz_get_sleep_length
      0.00            +0.7        0.74 ± 16%  perf-profile.children.cycles-pp.ext4_release_io_end
      3.09 ±  8%      +0.8        3.94 ±  6%  perf-profile.children.cycles-pp.ext4_es_insert_extent
      0.11 ±100%      +1.0        1.13 ± 14%  perf-profile.children.cycles-pp.mpage_map_and_submit_buffers
      0.53 ± 33%      +1.0        1.56 ± 28%  perf-profile.children.cycles-pp.__delete_from_page_cache
      0.01 ±173%      +1.1        1.08 ± 12%  perf-profile.children.cycles-pp.ext4_split_extent
      0.99 ± 30%      +1.1        2.08 ± 26%  perf-profile.children.cycles-pp.__softirqentry_text_start
      0.27 ± 54%      +1.1        1.36 ± 28%  perf-profile.children.cycles-pp.xas_create
      0.89 ±  9%      +1.1        1.99 ± 10%  perf-profile.children.cycles-pp.__hrtimer_run_queues
      0.00            +1.1        1.10 ± 12%  perf-profile.children.cycles-pp.ext4_split_convert_extents
      0.83 ± 11%      +1.4        2.21 ±  6%  perf-profile.children.cycles-pp.menu_select
      1.13 ± 32%      +1.4        2.53 ± 25%  perf-profile.children.cycles-pp.irq_exit
      0.02 ±173%      +1.5        1.47 ± 12%  perf-profile.children.cycles-pp.ext4_ext_handle_unwritten_extents
      5.89            +1.6        7.50 ± 13%  perf-profile.children.cycles-pp.ext4_ext_map_blocks
      1.52 ± 14%      +1.7        3.17 ±  8%  perf-profile.children.cycles-pp.hrtimer_interrupt
      0.76 ± 94%      +2.0        2.72 ± 27%  perf-profile.children.cycles-pp.shrink_page_list
      0.87 ± 96%      +2.0        2.89 ± 26%  perf-profile.children.cycles-pp.shrink_inactive_list
      0.87 ± 96%      +2.0        2.90 ± 26%  perf-profile.children.cycles-pp.shrink_lruvec
      1.18 ± 86%      +2.5        3.72 ± 25%  perf-profile.children.cycles-pp.shrink_node
      0.00            +2.6        2.58 ± 15%  perf-profile.children.cycles-pp.ext4_convert_unwritten_extents
      0.00            +2.9        2.94 ± 14%  perf-profile.children.cycles-pp.ext4_convert_unwritten_io_end_vec
      0.58 ± 79%      +3.1        3.73 ± 25%  perf-profile.children.cycles-pp.balance_pgdat
      0.58 ± 79%      +3.1        3.73 ± 25%  perf-profile.children.cycles-pp.kswapd
      2.90 ± 18%      +3.5        6.38 ± 12%  perf-profile.children.cycles-pp.smp_apic_timer_interrupt
      3.13 ± 16%      +3.8        6.90 ± 11%  perf-profile.children.cycles-pp.apic_timer_interrupt
      0.00            +4.0        3.99 ± 15%  perf-profile.children.cycles-pp.ext4_put_io_end
     10.41 ± 21%      +4.5       14.88 ± 14%  perf-profile.children.cycles-pp.do_writepages
     10.37 ± 21%      +4.5       14.86 ± 14%  perf-profile.children.cycles-pp.ext4_writepages
     10.05 ± 24%      +4.8       14.88 ± 14%  perf-profile.children.cycles-pp.wb_workfn
     10.05 ± 24%      +4.8       14.88 ± 14%  perf-profile.children.cycles-pp.wb_writeback
     10.05 ± 24%      +4.8       14.88 ± 14%  perf-profile.children.cycles-pp.__writeback_inodes_wb
     10.05 ± 24%      +4.8       14.88 ± 14%  perf-profile.children.cycles-pp.writeback_sb_inodes
     10.05 ± 24%      +4.8       14.88 ± 14%  perf-profile.children.cycles-pp.__writeback_single_inode
     10.13 ± 24%      +4.9       14.99 ± 14%  perf-profile.children.cycles-pp.process_one_work
     10.13 ± 24%      +4.9       15.00 ± 14%  perf-profile.children.cycles-pp.worker_thread
      0.22 ±102%      +5.6        5.84 ± 12%  perf-profile.children.cycles-pp.mpage_map_and_submit_extent
      0.11 ±103%      +6.5        6.58 ± 13%  perf-profile.children.cycles-pp.ext4_map_blocks
     10.93 ± 21%      +8.0       18.96 ± 16%  perf-profile.children.cycles-pp.kthread
     10.93 ± 21%      +8.0       18.97 ± 16%  perf-profile.children.cycles-pp.ret_from_fork
     34.79 ±  5%      +9.7       44.47 ± 12%  perf-profile.children.cycles-pp.intel_idle
     37.87 ±  6%     +14.7       52.53 ±  9%  perf-profile.children.cycles-pp.cpuidle_enter_state
     37.87 ±  6%     +14.7       52.54 ±  9%  perf-profile.children.cycles-pp.cpuidle_enter
     38.99 ±  5%     +16.5       55.50 ±  9%  perf-profile.children.cycles-pp.secondary_startup_64
     38.99 ±  5%     +16.5       55.50 ±  9%  perf-profile.children.cycles-pp.cpu_startup_entry
     39.00 ±  5%     +16.5       55.51 ±  9%  perf-profile.children.cycles-pp.do_idle
     37.52 ±  6%     +17.2       54.74 ±  9%  perf-profile.children.cycles-pp.start_secondary
      4.23 ± 54%      -3.4        0.86 ± 27%  perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
      6.15 ±  9%      -2.4        3.76 ± 14%  perf-profile.self.cycles-pp.ext4_es_lookup_extent
      3.60 ± 22%      -2.0        1.64 ± 17%  perf-profile.self.cycles-pp.__memcpy_flushcache
      3.40 ±  8%      -1.6        1.79 ± 13%  perf-profile.self.cycles-pp.copy_user_enhanced_fast_string
      3.55 ±  6%      -1.5        2.07 ± 15%  perf-profile.self.cycles-pp.xas_load
      2.61 ±  6%      -1.3        1.30 ± 15%  perf-profile.self.cycles-pp.do_syscall_64
      1.28 ± 15%      -0.7        0.56 ± 20%  perf-profile.self.cycles-pp.start_this_handle
      0.82 ± 29%      -0.6        0.19 ± 23%  perf-profile.self.cycles-pp.__list_del_entry_valid
      1.01 ±  5%      -0.5        0.53 ± 12%  perf-profile.self.cycles-pp.syscall_return_via_sysret
      0.99 ±  9%      -0.5        0.52 ± 19%  perf-profile.self.cycles-pp.__block_commit_write
      0.94 ±  6%      -0.5        0.48 ± 17%  perf-profile.self.cycles-pp.entry_SYSCALL_64
      0.78 ± 13%      -0.4        0.35 ± 11%  perf-profile.self.cycles-pp.jbd2_journal_stop
      0.66 ± 10%      -0.4        0.23 ± 15%  perf-profile.self.cycles-pp.add_transaction_credits
      0.94 ± 12%      -0.4        0.53 ± 17%  perf-profile.self.cycles-pp._raw_read_lock
      0.62 ± 19%      -0.3        0.27 ± 21%  perf-profile.self.cycles-pp.mpage_process_page_bufs
      0.80 ± 11%      -0.3        0.45 ± 17%  perf-profile.self.cycles-pp._raw_spin_lock
      0.72 ± 17%      -0.3        0.39 ± 10%  perf-profile.self.cycles-pp.xas_set_mark
      0.59 ± 14%      -0.3        0.29 ±  5%  perf-profile.self.cycles-pp.ext4_journal_check_start
      0.52 ±  7%      -0.3        0.26 ± 18%  perf-profile.self.cycles-pp.aa_file_perm
      1.01 ±  6%      -0.3        0.75 ± 20%  perf-profile.self.cycles-pp.find_get_entry
      0.42 ±  8%      -0.2        0.22 ±  8%  perf-profile.self.cycles-pp.stop_this_handle
      0.34 ±  9%      -0.2        0.14 ± 23%  perf-profile.self.cycles-pp.workingset_update_node
      0.33 ± 19%      -0.2        0.14 ± 21%  perf-profile.self.cycles-pp.ext4_bio_write_page
      0.22 ± 39%      -0.2        0.03 ±102%  perf-profile.self.cycles-pp.xas_store
      0.34 ±  8%      -0.2        0.16 ± 25%  perf-profile.self.cycles-pp.generic_write_end
      0.24 ± 21%      -0.2        0.09 ± 22%  perf-profile.self.cycles-pp.test_clear_page_writeback
      0.20 ± 20%      -0.1        0.07 ± 17%  perf-profile.self.cycles-pp.__test_set_page_writeback
      0.24 ± 17%      -0.1        0.11 ± 12%  perf-profile.self.cycles-pp.clear_page_dirty_for_io
      0.19 ± 10%      -0.1        0.07 ± 24%  perf-profile.self.cycles-pp.xas_start
      0.23 ± 11%      -0.1        0.11 ± 21%  perf-profile.self.cycles-pp.__fget_light
      0.25 ±  2%      -0.1        0.14 ± 18%  perf-profile.self.cycles-pp.__pagevec_lru_add_fn
      0.20 ± 11%      -0.1        0.10 ± 15%  perf-profile.self.cycles-pp.ext4_da_write_begin
      0.23 ± 22%      -0.1        0.13 ± 11%  perf-profile.self.cycles-pp.ext4_finish_bio
      0.19 ±  5%      -0.1        0.09 ± 11%  perf-profile.self.cycles-pp.__mod_node_page_state
      0.19 ±  6%      -0.1        0.09 ± 24%  perf-profile.self.cycles-pp.page_mapping
      0.17 ±  2%      -0.1        0.08 ± 16%  perf-profile.self.cycles-pp.__mod_lruvec_state
      0.21 ± 24%      -0.1        0.12 ± 19%  perf-profile.self.cycles-pp.new_slab
      0.20 ±  9%      -0.1        0.11 ±  9%  perf-profile.self.cycles-pp.ext4_da_write_end
      0.18 ± 18%      -0.1        0.10 ± 15%  perf-profile.self.cycles-pp.ext4_llseek
      0.19 ± 10%      -0.1        0.11 ± 21%  perf-profile.self.cycles-pp.rmqueue_bulk
      0.18 ± 11%      -0.1        0.11 ± 13%  perf-profile.self.cycles-pp.unlock_page
      0.15 ±  4%      -0.1        0.07 ± 20%  perf-profile.self.cycles-pp.__add_to_page_cache_locked
      0.15 ±  4%      -0.1        0.08 ± 14%  perf-profile.self.cycles-pp.__mod_memcg_state
      0.16 ±  2%      -0.1        0.09 ± 30%  perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe
      0.12 ± 19%      -0.1        0.04 ± 57%  perf-profile.self.cycles-pp.get_mem_cgroup_from_mm
      0.10 ± 13%      -0.1        0.03 ±100%  perf-profile.self.cycles-pp.mpage_prepare_extent_to_map
      0.12 ± 10%      -0.1        0.05 ±  9%  perf-profile.self.cycles-pp.account_page_dirtied
      0.10 ± 21%      -0.1        0.04 ± 58%  perf-profile.self.cycles-pp.dec_zone_page_state
      0.11 ± 11%      -0.1        0.04 ± 59%  perf-profile.self.cycles-pp.create_empty_buffers
      0.15 ±  7%      -0.1        0.08 ± 17%  perf-profile.self.cycles-pp.common_file_perm
      0.14 ± 10%      -0.1        0.08 ± 23%  perf-profile.self.cycles-pp.generic_perform_write
      0.13 ± 28%      -0.1        0.07 ± 19%  perf-profile.self.cycles-pp.pmem_make_request
      0.12 ±  4%      -0.1        0.06 ± 13%  perf-profile.self.cycles-pp.iov_iter_fault_in_readable
      0.12 ± 14%      -0.1        0.07 ± 59%  perf-profile.self.cycles-pp.node_dirty_ok
      0.10 ± 23%      -0.1        0.04 ± 63%  perf-profile.self.cycles-pp.___slab_alloc
      0.11 ±  4%      -0.1        0.05 ± 63%  perf-profile.self.cycles-pp.mark_buffer_dirty
      0.12 ± 10%      -0.1        0.07 ± 19%  perf-profile.self.cycles-pp.rmqueue
      0.09 ± 11%      -0.0        0.04 ± 58%  perf-profile.self.cycles-pp.__lru_cache_add
      0.07 ± 22%      -0.0        0.03 ±100%  perf-profile.self.cycles-pp.generic_make_request_checks
      0.09 ±  4%      -0.0        0.04 ± 57%  perf-profile.self.cycles-pp.ext4_block_write_begin
      0.09 ±  7%      -0.0        0.05 ± 58%  perf-profile.self.cycles-pp.__mark_inode_dirty
      0.08 ±  5%      -0.0        0.07 ± 17%  perf-profile.self.cycles-pp.ext4_file_write_iter
      0.07 ±  7%      +0.0        0.09 ± 13%  perf-profile.self.cycles-pp.ext4_es_insert_extent
      0.15 ±  3%      +0.0        0.18 ±  7%  perf-profile.self.cycles-pp.__x86_indirect_thunk_rax
      0.07 ± 16%      +0.0        0.10 ± 10%  perf-profile.self.cycles-pp.mark_page_accessed
      0.03 ±100%      +0.0        0.07 ±  7%  perf-profile.self.cycles-pp.jbd2__journal_start
      0.03 ±100%      +0.0        0.07 ±  5%  perf-profile.self.cycles-pp.kfree
      0.17 ±  4%      +0.0        0.21 ± 12%  perf-profile.self.cycles-pp.__might_sleep
      0.06 ± 11%      +0.0        0.10 ± 14%  perf-profile.self.cycles-pp.ext4_ext_map_blocks
      0.05 ±  8%      +0.0        0.10 ± 21%  perf-profile.self.cycles-pp.__getblk_gfp
      0.08 ± 11%      +0.0        0.12 ± 11%  perf-profile.self.cycles-pp.__read_extent_tree_block
      0.01 ±173%      +0.1        0.07 ± 31%  perf-profile.self.cycles-pp.rebalance_domains
      0.01 ±173%      +0.1        0.07 ± 25%  perf-profile.self.cycles-pp.timekeeping_max_deferment
      0.06 ± 11%      +0.1        0.12 ± 15%  perf-profile.self.cycles-pp.hrtimer_interrupt
      0.00            +0.1        0.06 ± 22%  perf-profile.self.cycles-pp.account_process_tick
      0.00            +0.1        0.06 ± 14%  perf-profile.self.cycles-pp.ext4_map_blocks
      0.00            +0.1        0.06 ±  7%  perf-profile.self.cycles-pp.rcu_eqs_enter
      0.00            +0.1        0.06 ± 14%  perf-profile.self.cycles-pp.call_cpuidle
      0.07 ± 15%      +0.1        0.13 ± 29%  perf-profile.self.cycles-pp.native_apic_msr_eoi_write
      0.00            +0.1        0.06 ± 20%  perf-profile.self.cycles-pp.__isolate_lru_page
      0.00            +0.1        0.06 ± 16%  perf-profile.self.cycles-pp.lapic_next_deadline
      0.02 ±173%      +0.1        0.08 ± 37%  perf-profile.self.cycles-pp.delay_tsc
      0.00            +0.1        0.06 ± 26%  perf-profile.self.cycles-pp.get_next_timer_interrupt
      0.03 ±100%      +0.1        0.09 ± 11%  perf-profile.self.cycles-pp.__ext4_journal_stop
      0.00            +0.1        0.06 ± 13%  perf-profile.self.cycles-pp.timerqueue_add
      0.00            +0.1        0.06 ±  6%  perf-profile.self.cycles-pp._raw_write_lock
      0.00            +0.1        0.06 ± 13%  perf-profile.self.cycles-pp.rcu_irq_exit
      0.21 ±  4%      +0.1        0.28 ± 11%  perf-profile.self.cycles-pp.__brelse
      0.01 ±173%      +0.1        0.08 ± 14%  perf-profile.self.cycles-pp.free_unref_page_list
      0.00            +0.1        0.07 ± 19%  perf-profile.self.cycles-pp.rwsem_optimistic_spin
      0.00            +0.1        0.07 ± 12%  perf-profile.self.cycles-pp.ext4_ext_handle_unwritten_extents
      0.00            +0.1        0.07 ± 22%  perf-profile.self.cycles-pp.idle_cpu
      0.06 ± 16%      +0.1        0.13 ± 19%  perf-profile.self.cycles-pp.__hrtimer_next_event_base
      0.01 ±173%      +0.1        0.08 ± 15%  perf-profile.self.cycles-pp.scheduler_tick
      0.00            +0.1        0.07 ± 20%  perf-profile.self.cycles-pp.ktime_get_update_offsets_now
      0.00            +0.1        0.07 ± 30%  perf-profile.self.cycles-pp.crypto_shash_update
      0.00            +0.1        0.07 ± 33%  perf-profile.self.cycles-pp.pm_qos_request
      0.00            +0.1        0.07 ± 14%  perf-profile.self.cycles-pp.__run_timers
      0.24            +0.1        0.31 ±  4%  perf-profile.self.cycles-pp._raw_spin_unlock_irqrestore
      0.00            +0.1        0.08 ±  5%  perf-profile.self.cycles-pp.perf_mux_hrtimer_handler
      0.00            +0.1        0.08 ± 14%  perf-profile.self.cycles-pp.rcu_dynticks_eqs_exit
      0.03 ±100%      +0.1        0.10 ± 20%  perf-profile.self.cycles-pp.__hrtimer_run_queues
      0.03 ±100%      +0.1        0.11 ± 30%  perf-profile.self.cycles-pp.update_blocked_averages
      0.00            +0.1        0.08 ± 30%  perf-profile.self.cycles-pp.load_balance
      0.00            +0.1        0.08 ± 17%  perf-profile.self.cycles-pp.__es_remove_extent
      0.00            +0.1        0.08 ± 21%  perf-profile.self.cycles-pp.rcu_core
      0.04 ±101%      +0.1        0.12 ± 23%  perf-profile.self.cycles-pp.rcu_sched_clock_irq
      0.00            +0.1        0.09 ± 30%  perf-profile.self.cycles-pp.run_posix_cpu_timers
      0.00            +0.1        0.09 ± 24%  perf-profile.self.cycles-pp.ksoftirqd_running
      0.00            +0.1        0.09 ± 21%  perf-profile.self.cycles-pp.smp_apic_timer_interrupt
      0.01 ±173%      +0.1        0.10 ± 24%  perf-profile.self.cycles-pp.interrupt_entry
      0.01 ±173%      +0.1        0.10 ± 58%  perf-profile.self.cycles-pp.tick_check_oneshot_broadcast_this_cpu
      0.22 ± 24%      +0.1        0.32 ± 21%  perf-profile.self.cycles-pp.release_pages
      0.00            +0.1        0.10 ± 11%  perf-profile.self.cycles-pp.rwsem_spin_on_owner
      0.07 ± 28%      +0.1        0.17 ± 11%  perf-profile.self.cycles-pp.note_gp_changes
      0.05 ±  9%      +0.1        0.15 ± 18%  perf-profile.self.cycles-pp.native_sched_clock
      0.07 ± 10%      +0.1        0.17 ± 18%  perf-profile.self.cycles-pp.io_serial_in
      0.03 ±100%      +0.1        0.14 ± 30%  perf-profile.self.cycles-pp.__softirqentry_text_start
      0.00            +0.1        0.10 ± 17%  perf-profile.self.cycles-pp.jbd2_write_access_granted
      0.00            +0.1        0.10 ± 22%  perf-profile.self.cycles-pp.nr_iowait_cpu
      0.00            +0.1        0.10 ± 35%  perf-profile.self.cycles-pp.pm_qos_read_value
      0.22 ± 11%      +0.1        0.33 ±  3%  perf-profile.self.cycles-pp.read_tsc
      0.00            +0.1        0.11 ± 11%  perf-profile.self.cycles-pp.crc_1
      0.00            +0.1        0.12 ± 40%  perf-profile.self.cycles-pp.osq_lock
      0.05 ± 58%      +0.1        0.17 ± 13%  perf-profile.self.cycles-pp.tick_nohz_next_event
      0.04 ± 57%      +0.1        0.16 ± 13%  perf-profile.self.cycles-pp.__next_timer_interrupt
      0.08 ±  6%      +0.1        0.19 ± 10%  perf-profile.self.cycles-pp.find_next_bit
      0.23 ± 20%      +0.1        0.36 ± 11%  perf-profile.self.cycles-pp.xas_find_marked
      0.03 ±105%      +0.1        0.16 ± 33%  perf-profile.self.cycles-pp.update_sd_lb_stats
      0.01 ±173%      +0.1        0.15 ± 19%  perf-profile.self.cycles-pp.shrink_page_list
      0.14 ±  6%      +0.1        0.27 ± 10%  perf-profile.self.cycles-pp.native_irq_return_iret
      0.00            +0.1        0.14 ±  3%  perf-profile.self.cycles-pp.ext4_do_update_inode
      0.07            +0.1        0.21 ± 14%  perf-profile.self.cycles-pp.do_idle
      0.00            +0.2        0.15 ± 11%  perf-profile.self.cycles-pp.jbd2_journal_dirty_metadata
      0.18 ±  4%      +0.2        0.36 ±  8%  perf-profile.self.cycles-pp.native_write_msr
      0.20 ± 14%      +0.2        0.39 ± 17%  perf-profile.self.cycles-pp.rb_next
      0.14 ± 34%      +0.2        0.34 ± 16%  perf-profile.self.cycles-pp.rb_erase
      0.00            +0.2        0.21 ±  8%  perf-profile.self.cycles-pp.memmove
      0.49 ± 23%      +0.2        0.73 ± 13%  perf-profile.self.cycles-pp.find_get_pages_range_tag
      0.79 ± 12%      +0.3        1.04 ± 10%  perf-profile.self.cycles-pp.__es_tree_search
      0.00            +0.3        0.27 ± 12%  perf-profile.self.cycles-pp.crc32c_pcl_intel_update
      0.06 ± 20%      +0.4        0.48 ± 17%  perf-profile.self.cycles-pp.ext4_end_bio
      0.25 ±  9%      +0.4        0.69 ± 14%  perf-profile.self.cycles-pp.cpuidle_enter_state
      0.35 ± 15%      +0.5        0.84 ± 19%  perf-profile.self.cycles-pp.menu_select
      0.23 ± 66%      +1.1        1.36 ± 28%  perf-profile.self.cycles-pp.xas_create
      1.32 ±  5%      +1.4        2.68 ± 15%  perf-profile.self.cycles-pp.ext4_find_extent
     34.76 ±  5%      +9.7       44.41 ± 12%  perf-profile.self.cycles-pp.intel_idle





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.


Thanks,
Rong Chen


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