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Message-ID: <20201004132838.GU393@shao2-debian>
Date:   Sun, 4 Oct 2020 21:28:38 +0800
From:   kernel test robot <rong.a.chen@...el.com>
To:     David Rientjes <rientjes@...gle.com>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Yang Shi <yang.shi@...ux.alibaba.com>,
        "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
        Mike Rapoport <rppt@...ux.ibm.com>,
        Jeremy Cline <jcline@...hat.com>,
        Andrea Arcangeli <aarcange@...hat.com>,
        Mike Kravetz <mike.kravetz@...cle.com>,
        Michal Hocko <mhocko@...nel.org>,
        Vlastimil Babka <vbabka@...e.cz>,
        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
Subject: [mm, thp] 85b9f46e8e: vm-scalability.throughput -8.7% regression

Greeting,

FYI, we noticed a -8.7% regression of vm-scalability.throughput due to commit:


commit: 85b9f46e8ea451633ccd60a7d8cacbfff9f34047 ("mm, thp: track fallbacks due to failed memcg charges separately")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master


in testcase: vm-scalability
on test machine: 104 threads Skylake with 192G memory
with following parameters:

	runtime: 300s
	size: 1T
	test: lru-shm
	cpufreq_governor: performance
	ucode: 0x2006906

test-description: The motivation behind this suite is to exercise functions and regions of the mm/ of the Linux kernel which are of interest to us.
test-url: https://git.kernel.org/cgit/linux/kernel/git/wfg/vm-scalability.git/



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/rootfs/runtime/size/tbox_group/test/testcase/ucode:
  gcc-9/performance/x86_64-rhel-8.3/debian-10.4-x86_64-20200603.cgz/300s/1T/lkp-skl-fpga01/lru-shm/vm-scalability/0x2006906

commit: 
  dcdf11ee14 ("mm, shmem: add vmstat for hugepage fallback")
  85b9f46e8e ("mm, thp: track fallbacks due to failed memcg charges separately")

dcdf11ee14413332 85b9f46e8ea451633ccd60a7d8c 
---------------- --------------------------- 
       fail:runs  %reproduction    fail:runs
           |             |             |    
          1:4           24%           2:4     perf-profile.calltrace.cycles-pp.sync_regs.error_entry.do_access
          3:4           53%           5:4     perf-profile.calltrace.cycles-pp.error_entry.do_access
          9:4          -27%           8:4     perf-profile.children.cycles-pp.error_entry
          4:4          -10%           4:4     perf-profile.self.cycles-pp.error_entry
         %stddev     %change         %stddev
             \          |                \  
    477291            -9.1%     434041        vm-scalability.median
  49791027            -8.7%   45476799        vm-scalability.throughput
    223.67            +1.6%     227.36        vm-scalability.time.elapsed_time
    223.67            +1.6%     227.36        vm-scalability.time.elapsed_time.max
     50364 ±  6%     +24.1%      62482 ± 10%  vm-scalability.time.involuntary_context_switches
      2237            +7.8%       2412        vm-scalability.time.percent_of_cpu_this_job_got
      3084           +18.2%       3646        vm-scalability.time.system_time
      1921            -4.2%       1839        vm-scalability.time.user_time
     13.68            +2.2       15.86        mpstat.cpu.all.sys%
     28535 ± 30%     -47.0%      15114 ± 79%  numa-numastat.node0.other_node
    142734 ± 11%     -19.4%     115000 ± 17%  numa-meminfo.node0.AnonPages
     11168 ±  3%      +8.8%      12150 ±  5%  numa-meminfo.node1.PageTables
     76.00            -1.6%      74.75        vmstat.cpu.id
      3626            -1.9%       3555        vmstat.system.cs
   2214928 ±166%     -96.6%      75321 ±  7%  cpuidle.C1.usage
    200981 ±  7%     -18.0%     164861 ±  7%  cpuidle.POLL.time
     52675 ±  3%     -16.7%      43866 ± 10%  cpuidle.POLL.usage
     35659 ± 11%     -19.4%      28754 ± 17%  numa-vmstat.node0.nr_anon_pages
   1248014 ±  3%     +10.9%    1384236        numa-vmstat.node1.nr_mapped
      2722 ±  4%     +10.6%       3011 ±  5%  numa-vmstat.node1.nr_page_table_pages
   2562296            +7.0%    2741267        proc-vmstat.nr_mapped
      5451            +4.7%       5707        proc-vmstat.nr_page_table_pages
      5704 ±  4%     +38.0%       7872 ±  6%  proc-vmstat.pgactivate
     12140 ±  3%      -9.5%      10984 ±  6%  softirqs.CPU13.RCU
     12180 ±  4%      -8.3%      11167 ±  2%  softirqs.CPU39.RCU
     11745 ±  6%     -11.6%      10377 ±  4%  softirqs.CPU65.RCU
     13119 ±  9%     -12.7%      11453 ±  4%  softirqs.CPU71.RCU
     12034 ±  5%      -7.9%      11079 ±  3%  softirqs.CPU73.RCU
     13248 ± 15%     -16.3%      11090 ±  4%  softirqs.CPU88.RCU
     24545 ±  3%     -12.0%      21602 ±  9%  softirqs.CPU91.SCHED
    764.44 ±  9%     -16.0%     641.83 ±  7%  sched_debug.cfs_rq:/.load_avg.max
      0.32 ± 32%     -53.7%       0.15 ± 66%  sched_debug.cfs_rq:/.nr_running.avg
      9.00 ± 25%     -51.1%       4.41 ± 85%  sched_debug.cfs_rq:/.removed.load_avg.avg
      9.00 ± 25%     -51.0%       4.41 ± 85%  sched_debug.cfs_rq:/.removed.runnable_avg.avg
    487.45 ± 27%     -42.1%     282.24 ± 33%  sched_debug.cfs_rq:/.runnable_avg.avg
    353.30 ± 31%     -53.7%     163.58 ± 60%  sched_debug.cfs_rq:/.util_avg.avg
     23.88 ± 11%     -30.4%      16.61 ± 14%  sched_debug.cfs_rq:/.util_est_enqueued.avg
      4.48 ± 41%     -37.3%       2.81 ± 33%  sched_debug.cpu.clock.stddev
      2956 ± 38%     -67.3%     965.56 ±126%  sched_debug.cpu.curr->pid.avg
    596164 ±  8%     -12.7%     520369        sched_debug.cpu.max_idle_balance_cost.max
     10556 ± 50%     -80.1%       2099 ± 44%  sched_debug.cpu.max_idle_balance_cost.stddev
      0.00 ± 11%     -25.2%       0.00 ± 19%  sched_debug.cpu.next_balance.stddev
      0.30 ± 35%     -57.8%       0.13 ± 88%  sched_debug.cpu.nr_running.avg
      0.26 ± 10%     -10.7%       0.24 ±  5%  sched_debug.cpu.nr_running.stddev
 1.485e+10            -1.0%  1.471e+10        perf-stat.i.branch-instructions
      3607            -2.0%       3535        perf-stat.i.context-switches
      1.13 ±  3%      +5.6%       1.19        perf-stat.i.cpi
 6.563e+10            +8.5%  7.123e+10        perf-stat.i.cpu-cycles
      1217            +2.2%       1244        perf-stat.i.cycles-between-cache-misses
 1.499e+10            -0.9%  1.485e+10        perf-stat.i.dTLB-loads
 4.056e+09            -1.3%  4.002e+09        perf-stat.i.dTLB-stores
      0.91 ±  4%      -5.4%       0.86 ±  2%  perf-stat.i.ipc
      0.63            +8.4%       0.68        perf-stat.i.metric.GHz
   2306374            -1.4%    2274501        perf-stat.i.minor-faults
   2061405 ±  4%     +14.3%    2355494 ±  3%  perf-stat.i.node-load-misses
   1283824 ±  4%      +5.7%    1356763        perf-stat.i.node-loads
     39.74 ±  3%      -2.5       37.25 ±  3%  perf-stat.i.node-store-miss-rate%
   8640344            -2.0%    8468484        perf-stat.i.node-stores
   2306374            -1.4%    2274501        perf-stat.i.page-faults
      1.24            +9.5%       1.36        perf-stat.overall.cpi
      1187            +8.0%       1282        perf-stat.overall.cycles-between-cache-misses
      0.80            -8.7%       0.73        perf-stat.overall.ipc
 1.486e+10            -1.2%  1.468e+10        perf-stat.ps.branch-instructions
      3598            -2.1%       3523        perf-stat.ps.context-switches
 6.566e+10            +8.3%  7.111e+10        perf-stat.ps.cpu-cycles
 1.499e+10            -1.1%  1.482e+10        perf-stat.ps.dTLB-loads
 4.055e+09            -1.5%  3.993e+09        perf-stat.ps.dTLB-stores
 5.282e+10            -1.1%  5.223e+10        perf-stat.ps.instructions
   2308446            -1.6%    2270962        perf-stat.ps.minor-faults
   2058616 ±  4%     +14.1%    2349536 ±  3%  perf-stat.ps.node-load-misses
   1283042 ±  4%      +5.5%    1353397        perf-stat.ps.node-loads
   8648214            -2.2%    8455419        perf-stat.ps.node-stores
   2308446            -1.6%    2270962        perf-stat.ps.page-faults
      1473 ± 10%     +46.2%       2154 ±  5%  interrupts.CPU0.NMI:Non-maskable_interrupts
      1473 ± 10%     +46.2%       2154 ±  5%  interrupts.CPU0.PMI:Performance_monitoring_interrupts
    524.00            +8.0%     565.75 ±  5%  interrupts.CPU1.CAL:Function_call_interrupts
      2593 ± 82%     -85.7%     372.00 ± 97%  interrupts.CPU1.RES:Rescheduling_interrupts
      1282 ±  5%     +92.5%       2467 ± 26%  interrupts.CPU102.NMI:Non-maskable_interrupts
      1282 ±  5%     +92.5%       2467 ± 26%  interrupts.CPU102.PMI:Performance_monitoring_interrupts
      1475 ± 16%     +41.9%       2093        interrupts.CPU103.NMI:Non-maskable_interrupts
      1475 ± 16%     +41.9%       2093        interrupts.CPU103.PMI:Performance_monitoring_interrupts
    736.50 ±111%     -79.8%     148.75 ± 17%  interrupts.CPU13.RES:Rescheduling_interrupts
      1030 ± 34%    +122.5%       2292 ± 10%  interrupts.CPU17.NMI:Non-maskable_interrupts
      1030 ± 34%    +122.5%       2292 ± 10%  interrupts.CPU17.PMI:Performance_monitoring_interrupts
      1189 ± 25%     +73.2%       2059 ±  4%  interrupts.CPU18.NMI:Non-maskable_interrupts
      1189 ± 25%     +73.2%       2059 ±  4%  interrupts.CPU18.PMI:Performance_monitoring_interrupts
      1024 ± 34%     +90.0%       1946 ±  8%  interrupts.CPU22.NMI:Non-maskable_interrupts
      1024 ± 34%     +90.0%       1946 ±  8%  interrupts.CPU22.PMI:Performance_monitoring_interrupts
    144.50 ± 35%     +67.5%     242.00 ± 37%  interrupts.CPU22.RES:Rescheduling_interrupts
      1244 ± 23%     +80.3%       2244 ± 16%  interrupts.CPU23.NMI:Non-maskable_interrupts
      1244 ± 23%     +80.3%       2244 ± 16%  interrupts.CPU23.PMI:Performance_monitoring_interrupts
      1435 ±  6%     +62.5%       2332 ± 27%  interrupts.CPU25.NMI:Non-maskable_interrupts
      1435 ±  6%     +62.5%       2332 ± 27%  interrupts.CPU25.PMI:Performance_monitoring_interrupts
      1365 ± 10%     +56.4%       2135 ±  3%  interrupts.CPU28.NMI:Non-maskable_interrupts
      1365 ± 10%     +56.4%       2135 ±  3%  interrupts.CPU28.PMI:Performance_monitoring_interrupts
      1144 ± 25%     +84.9%       2115 ±  2%  interrupts.CPU30.NMI:Non-maskable_interrupts
      1144 ± 25%     +84.9%       2115 ±  2%  interrupts.CPU30.PMI:Performance_monitoring_interrupts
      1288 ±  5%    +139.8%       3088 ± 56%  interrupts.CPU35.NMI:Non-maskable_interrupts
      1288 ±  5%    +139.8%       3088 ± 56%  interrupts.CPU35.PMI:Performance_monitoring_interrupts
    322.50 ± 36%   +1361.1%       4712 ± 89%  interrupts.CPU36.RES:Rescheduling_interrupts
      1100 ± 21%     +87.1%       2059 ±  2%  interrupts.CPU37.NMI:Non-maskable_interrupts
      1100 ± 21%     +87.1%       2059 ±  2%  interrupts.CPU37.PMI:Performance_monitoring_interrupts
    968.75 ± 35%    +113.9%       2072        interrupts.CPU38.NMI:Non-maskable_interrupts
    968.75 ± 35%    +113.9%       2072        interrupts.CPU38.PMI:Performance_monitoring_interrupts
     10.50 ± 76%    +440.5%      56.75 ± 62%  interrupts.CPU4.TLB:TLB_shootdowns
      1146 ± 28%     +81.4%       2079        interrupts.CPU45.NMI:Non-maskable_interrupts
      1146 ± 28%     +81.4%       2079        interrupts.CPU45.PMI:Performance_monitoring_interrupts
      1295 ±  5%     +59.8%       2070        interrupts.CPU46.NMI:Non-maskable_interrupts
      1295 ±  5%     +59.8%       2070        interrupts.CPU46.PMI:Performance_monitoring_interrupts
    828.75 ± 40%    +175.4%       2282 ± 18%  interrupts.CPU47.NMI:Non-maskable_interrupts
    828.75 ± 40%    +175.4%       2282 ± 18%  interrupts.CPU47.PMI:Performance_monitoring_interrupts
      1064 ± 41%     +92.8%       2053        interrupts.CPU48.NMI:Non-maskable_interrupts
      1064 ± 41%     +92.8%       2053        interrupts.CPU48.PMI:Performance_monitoring_interrupts
      1324 ± 36%     +54.9%       2052 ±  2%  interrupts.CPU51.NMI:Non-maskable_interrupts
      1324 ± 36%     +54.9%       2052 ±  2%  interrupts.CPU51.PMI:Performance_monitoring_interrupts
      1312 ± 28%     +81.8%       2386 ± 18%  interrupts.CPU52.NMI:Non-maskable_interrupts
      1312 ± 28%     +81.8%       2386 ± 18%  interrupts.CPU52.PMI:Performance_monitoring_interrupts
      1407 ±  6%     +34.2%       1889 ±  9%  interrupts.CPU54.NMI:Non-maskable_interrupts
      1407 ±  6%     +34.2%       1889 ±  9%  interrupts.CPU54.PMI:Performance_monitoring_interrupts
      1419 ±  3%     +35.4%       1921 ±  9%  interrupts.CPU58.NMI:Non-maskable_interrupts
      1419 ±  3%     +35.4%       1921 ±  9%  interrupts.CPU58.PMI:Performance_monitoring_interrupts
      1357 ±  2%     +55.6%       2111 ± 11%  interrupts.CPU59.NMI:Non-maskable_interrupts
      1357 ±  2%     +55.6%       2111 ± 11%  interrupts.CPU59.PMI:Performance_monitoring_interrupts
      1206 ± 26%     +79.9%       2171 ± 17%  interrupts.CPU60.NMI:Non-maskable_interrupts
      1206 ± 26%     +79.9%       2171 ± 17%  interrupts.CPU60.PMI:Performance_monitoring_interrupts
      1388 ±  2%     +43.6%       1994 ± 11%  interrupts.CPU61.NMI:Non-maskable_interrupts
      1388 ±  2%     +43.6%       1994 ± 11%  interrupts.CPU61.PMI:Performance_monitoring_interrupts
      1407 ±  5%     +46.7%       2065 ±  7%  interrupts.CPU64.NMI:Non-maskable_interrupts
      1407 ±  5%     +46.7%       2065 ±  7%  interrupts.CPU64.PMI:Performance_monitoring_interrupts
      1214 ± 25%     +66.2%       2017 ± 14%  interrupts.CPU65.NMI:Non-maskable_interrupts
      1214 ± 25%     +66.2%       2017 ± 14%  interrupts.CPU65.PMI:Performance_monitoring_interrupts
      1212 ± 29%     +69.6%       2055 ± 14%  interrupts.CPU67.NMI:Non-maskable_interrupts
      1212 ± 29%     +69.6%       2055 ± 14%  interrupts.CPU67.PMI:Performance_monitoring_interrupts
      1202 ± 25%    +124.4%       2698 ± 23%  interrupts.CPU69.NMI:Non-maskable_interrupts
      1202 ± 25%    +124.4%       2698 ± 23%  interrupts.CPU69.PMI:Performance_monitoring_interrupts
      1058 ± 37%    +114.5%       2269 ± 24%  interrupts.CPU7.NMI:Non-maskable_interrupts
      1058 ± 37%    +114.5%       2269 ± 24%  interrupts.CPU7.PMI:Performance_monitoring_interrupts
      1359 ±  2%     +44.6%       1965 ±  9%  interrupts.CPU70.NMI:Non-maskable_interrupts
      1359 ±  2%     +44.6%       1965 ±  9%  interrupts.CPU70.PMI:Performance_monitoring_interrupts
      1218 ± 24%     +67.2%       2037 ± 10%  interrupts.CPU72.NMI:Non-maskable_interrupts
      1218 ± 24%     +67.2%       2037 ± 10%  interrupts.CPU72.PMI:Performance_monitoring_interrupts
    139.75 ± 23%     -31.3%      96.00 ± 11%  interrupts.CPU74.RES:Rescheduling_interrupts
      1182 ± 24%     +97.2%       2331 ± 25%  interrupts.CPU8.NMI:Non-maskable_interrupts
      1182 ± 24%     +97.2%       2331 ± 25%  interrupts.CPU8.PMI:Performance_monitoring_interrupts
    219.75 ± 61%     -50.1%     109.75 ± 12%  interrupts.CPU8.RES:Rescheduling_interrupts
      1362 ±  3%     +47.7%       2012 ±  6%  interrupts.CPU9.NMI:Non-maskable_interrupts
      1362 ±  3%     +47.7%       2012 ±  6%  interrupts.CPU9.PMI:Performance_monitoring_interrupts
    260.00 ± 30%   +1584.2%       4379 ±158%  interrupts.CPU90.RES:Rescheduling_interrupts
    203.25 ± 28%    +133.7%     475.00 ± 65%  interrupts.CPU94.RES:Rescheduling_interrupts
      1137 ± 24%     +80.0%       2047 ±  2%  interrupts.CPU98.NMI:Non-maskable_interrupts
      1137 ± 24%     +80.0%       2047 ±  2%  interrupts.CPU98.PMI:Performance_monitoring_interrupts
    142681 ±  5%     +43.0%     204005 ±  6%  interrupts.NMI:Non-maskable_interrupts
    142681 ±  5%     +43.0%     204005 ±  6%  interrupts.PMI:Performance_monitoring_interrupts
     29.89 ± 84%     -16.4       13.46 ±173%  perf-profile.calltrace.cycles-pp.page_fault
     29.52 ± 84%     -16.2       13.31 ±173%  perf-profile.calltrace.cycles-pp.do_user_addr_fault.page_fault
     28.76 ± 84%     -15.7       13.04 ±173%  perf-profile.calltrace.cycles-pp.handle_mm_fault.do_user_addr_fault.page_fault
     27.92 ± 84%     -15.2       12.72 ±173%  perf-profile.calltrace.cycles-pp.__handle_mm_fault.handle_mm_fault.do_user_addr_fault.page_fault
     14.44 ± 14%      -7.0        7.39 ± 12%  perf-profile.calltrace.cycles-pp.cpu_startup_entry.start_secondary.secondary_startup_64
     14.44 ± 14%      -7.0        7.39 ± 12%  perf-profile.calltrace.cycles-pp.start_secondary.secondary_startup_64
     14.43 ± 14%      -7.0        7.39 ± 12%  perf-profile.calltrace.cycles-pp.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64
     14.57 ± 14%      -7.0        7.57 ± 14%  perf-profile.calltrace.cycles-pp.secondary_startup_64
     13.60 ± 15%      -6.7        6.87 ± 11%  perf-profile.calltrace.cycles-pp.cpuidle_enter.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64
     13.40 ± 15%      -6.6        6.76 ± 11%  perf-profile.calltrace.cycles-pp.cpuidle_enter_state.cpuidle_enter.do_idle.cpu_startup_entry.start_secondary
     10.98 ± 18%      -5.7        5.33 ±  9%  perf-profile.calltrace.cycles-pp.intel_idle.cpuidle_enter_state.cpuidle_enter.do_idle.cpu_startup_entry
      5.24 ± 18%      -2.8        2.43 ± 44%  perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.unlinkat
      5.24 ± 18%      -2.8        2.43 ± 44%  perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.unlinkat
      5.24 ± 18%      -2.8        2.43 ± 44%  perf-profile.calltrace.cycles-pp.evict.do_unlinkat.do_syscall_64.entry_SYSCALL_64_after_hwframe.unlinkat
      5.24 ± 18%      -2.8        2.43 ± 44%  perf-profile.calltrace.cycles-pp.unlinkat
      5.24 ± 18%      -2.8        2.43 ± 44%  perf-profile.calltrace.cycles-pp.do_unlinkat.do_syscall_64.entry_SYSCALL_64_after_hwframe.unlinkat
      5.24 ± 18%      -2.5        2.73 ± 32%  perf-profile.calltrace.cycles-pp.shmem_evict_inode.evict.do_unlinkat.do_syscall_64.entry_SYSCALL_64_after_hwframe
      5.24 ± 18%      -2.5        2.73 ± 32%  perf-profile.calltrace.cycles-pp.shmem_truncate_range.shmem_evict_inode.evict.do_unlinkat.do_syscall_64
      5.23 ± 18%      -2.5        2.72 ± 32%  perf-profile.calltrace.cycles-pp.shmem_undo_range.shmem_truncate_range.shmem_evict_inode.evict.do_unlinkat
      4.93 ± 14%      -2.4        2.54 ±  2%  perf-profile.calltrace.cycles-pp.mem_cgroup_try_charge_delay.shmem_getpage_gfp.shmem_fault.__do_fault.do_fault
      4.79 ± 14%      -2.4        2.42 ±  3%  perf-profile.calltrace.cycles-pp.mem_cgroup_try_charge.mem_cgroup_try_charge_delay.shmem_getpage_gfp.shmem_fault.__do_fault
      2.49 ± 19%      -1.3        1.16 ±  4%  perf-profile.calltrace.cycles-pp.get_mem_cgroup_from_mm.mem_cgroup_try_charge.mem_cgroup_try_charge_delay.shmem_getpage_gfp.shmem_fault
      2.32 ± 18%      -1.3        1.06 ± 45%  perf-profile.calltrace.cycles-pp.__pagevec_release.shmem_undo_range.shmem_truncate_range.shmem_evict_inode.evict
      2.30 ± 18%      -1.3        1.04 ± 45%  perf-profile.calltrace.cycles-pp.release_pages.__pagevec_release.shmem_undo_range.shmem_truncate_range.shmem_evict_inode
      2.03 ± 25%      -1.2        0.87 ± 45%  perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe
      2.03 ± 25%      -1.2        0.87 ± 45%  perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe
      1.96 ± 16%      -1.0        0.93 ± 42%  perf-profile.calltrace.cycles-pp.truncate_inode_page.shmem_undo_range.shmem_truncate_range.shmem_evict_inode.evict
      1.69 ± 17%      -1.0        0.68 ± 69%  perf-profile.calltrace.cycles-pp.delete_from_page_cache.truncate_inode_page.shmem_undo_range.shmem_truncate_range.shmem_evict_inode
      2.35 ± 15%      -1.0        1.38 ± 18%  perf-profile.calltrace.cycles-pp.apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter.do_idle.cpu_startup_entry
      2.13 ± 16%      -0.9        1.25 ± 19%  perf-profile.calltrace.cycles-pp.smp_apic_timer_interrupt.apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter.do_idle
      1.19 ± 17%      -0.8        0.37 ±108%  perf-profile.calltrace.cycles-pp.__delete_from_page_cache.delete_from_page_cache.truncate_inode_page.shmem_undo_range.shmem_truncate_range
      2.67 ± 17%      -0.8        1.85 ± 20%  perf-profile.calltrace.cycles-pp.write
      2.66 ± 17%      -0.8        1.85 ± 20%  perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.write
      2.66 ± 17%      -0.8        1.85 ± 20%  perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
      2.66 ± 17%      -0.8        1.85 ± 20%  perf-profile.calltrace.cycles-pp.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
      2.66 ± 17%      -0.8        1.85 ± 20%  perf-profile.calltrace.cycles-pp.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
      2.63 ± 17%      -0.8        1.83 ± 20%  perf-profile.calltrace.cycles-pp.vprintk_emit.devkmsg_emit.devkmsg_write.cold.new_sync_write.vfs_write
      2.65 ± 17%      -0.8        1.85 ± 20%  perf-profile.calltrace.cycles-pp.new_sync_write.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe
      2.62 ± 17%      -0.8        1.82 ± 20%  perf-profile.calltrace.cycles-pp.console_unlock.vprintk_emit.devkmsg_emit.devkmsg_write.cold.new_sync_write
      2.63 ± 17%      -0.8        1.83 ± 20%  perf-profile.calltrace.cycles-pp.devkmsg_write.cold.new_sync_write.vfs_write.ksys_write.do_syscall_64
      2.63 ± 17%      -0.8        1.83 ± 20%  perf-profile.calltrace.cycles-pp.devkmsg_emit.devkmsg_write.cold.new_sync_write.vfs_write.ksys_write
      2.08 ± 15%      -0.7        1.39 ± 19%  perf-profile.calltrace.cycles-pp.drm_fb_helper_dirty_work.process_one_work.worker_thread.kthread.ret_from_fork
      2.10 ± 15%      -0.7        1.42 ± 19%  perf-profile.calltrace.cycles-pp.ret_from_fork
      2.10 ± 15%      -0.7        1.42 ± 19%  perf-profile.calltrace.cycles-pp.kthread.ret_from_fork
      2.15 ± 17%      -0.7        1.46 ± 20%  perf-profile.calltrace.cycles-pp.serial8250_console_write.console_unlock.vprintk_emit.devkmsg_emit.devkmsg_write.cold
      2.08 ± 15%      -0.7        1.40 ± 19%  perf-profile.calltrace.cycles-pp.worker_thread.kthread.ret_from_fork
      2.08 ± 15%      -0.7        1.40 ± 19%  perf-profile.calltrace.cycles-pp.process_one_work.worker_thread.kthread.ret_from_fork
      5.65 ± 14%      -0.7        4.97 ± 12%  perf-profile.calltrace.cycles-pp.filemap_map_pages.do_fault.__handle_mm_fault.handle_mm_fault.do_user_addr_fault
      5.21 ± 14%      -0.7        4.53 ± 12%  perf-profile.calltrace.cycles-pp.clear_page_erms.shmem_getpage_gfp.shmem_fault.__do_fault.do_fault
      2.01 ± 16%      -0.7        1.35 ± 19%  perf-profile.calltrace.cycles-pp.memcpy_erms.drm_fb_helper_dirty_work.process_one_work.worker_thread.kthread
      2.01 ± 17%      -0.6        1.38 ± 20%  perf-profile.calltrace.cycles-pp.uart_console_write.serial8250_console_write.console_unlock.vprintk_emit.devkmsg_emit
      1.83 ± 16%      -0.6        1.26 ± 20%  perf-profile.calltrace.cycles-pp.wait_for_xmitr.serial8250_console_putchar.uart_console_write.serial8250_console_write.console_unlock
      1.83 ± 16%      -0.6        1.26 ± 20%  perf-profile.calltrace.cycles-pp.serial8250_console_putchar.uart_console_write.serial8250_console_write.console_unlock.vprintk_emit
      1.31 ± 17%      -0.5        0.78 ± 19%  perf-profile.calltrace.cycles-pp.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter
      1.45 ± 16%      -0.5        0.98 ± 20%  perf-profile.calltrace.cycles-pp.io_serial_in.wait_for_xmitr.serial8250_console_putchar.uart_console_write.serial8250_console_write
     13.12 ± 15%     +10.7       23.87 ± 10%  perf-profile.calltrace.cycles-pp.__lru_cache_add.shmem_getpage_gfp.shmem_fault.__do_fault.do_fault
     10.93 ± 15%     +10.8       21.78 ± 10%  perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.pagevec_lru_move_fn.__lru_cache_add.shmem_getpage_gfp.shmem_fault
     10.87 ± 15%     +10.9       21.73 ± 10%  perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.pagevec_lru_move_fn.__lru_cache_add.shmem_getpage_gfp
     12.81 ± 15%     +10.9       23.73 ± 10%  perf-profile.calltrace.cycles-pp.pagevec_lru_move_fn.__lru_cache_add.shmem_getpage_gfp.shmem_fault.__do_fault
     14.44 ± 14%      -7.0        7.39 ± 12%  perf-profile.children.cycles-pp.start_secondary
     14.57 ± 14%      -7.0        7.57 ± 14%  perf-profile.children.cycles-pp.secondary_startup_64
     14.57 ± 14%      -7.0        7.57 ± 14%  perf-profile.children.cycles-pp.cpu_startup_entry
     14.57 ± 14%      -7.0        7.57 ± 14%  perf-profile.children.cycles-pp.do_idle
     13.72 ± 15%      -6.7        7.05 ± 13%  perf-profile.children.cycles-pp.cpuidle_enter
     13.71 ± 15%      -6.7        7.05 ± 13%  perf-profile.children.cycles-pp.cpuidle_enter_state
     11.07 ± 17%      -5.6        5.48 ± 12%  perf-profile.children.cycles-pp.intel_idle
     10.18 ± 18%      -3.7        6.52 ± 18%  perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
     10.18 ± 18%      -3.7        6.52 ± 18%  perf-profile.children.cycles-pp.do_syscall_64
      5.24 ± 18%      -2.8        2.43 ± 44%  perf-profile.children.cycles-pp.unlinkat
      5.24 ± 18%      -2.4        2.83 ± 29%  perf-profile.children.cycles-pp.evict
      5.24 ± 18%      -2.4        2.83 ± 29%  perf-profile.children.cycles-pp.do_unlinkat
      5.24 ± 18%      -2.4        2.83 ± 29%  perf-profile.children.cycles-pp.shmem_evict_inode
      5.24 ± 18%      -2.4        2.83 ± 29%  perf-profile.children.cycles-pp.shmem_truncate_range
      5.24 ± 18%      -2.4        2.83 ± 29%  perf-profile.children.cycles-pp.shmem_undo_range
      5.05 ± 13%      -2.4        2.68 ±  6%  perf-profile.children.cycles-pp.mem_cgroup_try_charge_delay
      4.89 ± 13%      -2.4        2.53 ±  6%  perf-profile.children.cycles-pp.mem_cgroup_try_charge
      2.64 ± 15%      -1.4        1.22 ±  5%  perf-profile.children.cycles-pp.get_mem_cgroup_from_mm
      3.23 ± 16%      -1.2        2.02 ± 17%  perf-profile.children.cycles-pp.apic_timer_interrupt
      2.63 ± 17%      -1.1        1.49 ± 27%  perf-profile.children.cycles-pp.release_pages
      2.90 ± 17%      -1.1        1.79 ± 17%  perf-profile.children.cycles-pp.smp_apic_timer_interrupt
      2.32 ± 18%      -1.1        1.24 ± 30%  perf-profile.children.cycles-pp.__pagevec_release
      1.98 ± 17%      -0.9        1.09 ± 28%  perf-profile.children.cycles-pp.truncate_inode_page
      5.49 ± 14%      -0.9        4.61 ± 12%  perf-profile.children.cycles-pp.clear_page_erms
      2.75 ± 18%      -0.9        1.90 ± 20%  perf-profile.children.cycles-pp.console_unlock
      2.74 ± 17%      -0.8        1.90 ± 20%  perf-profile.children.cycles-pp.vprintk_emit
      2.67 ± 17%      -0.8        1.85 ± 20%  perf-profile.children.cycles-pp.write
      2.67 ± 17%      -0.8        1.86 ± 20%  perf-profile.children.cycles-pp.ksys_write
      2.66 ± 17%      -0.8        1.86 ± 20%  perf-profile.children.cycles-pp.vfs_write
      5.90 ± 13%      -0.8        5.10 ± 12%  perf-profile.children.cycles-pp.filemap_map_pages
      2.66 ± 17%      -0.8        1.85 ± 20%  perf-profile.children.cycles-pp.new_sync_write
      2.63 ± 17%      -0.8        1.83 ± 20%  perf-profile.children.cycles-pp.devkmsg_write.cold
      2.63 ± 17%      -0.8        1.83 ± 20%  perf-profile.children.cycles-pp.devkmsg_emit
      1.71 ± 17%      -0.8        0.94 ± 28%  perf-profile.children.cycles-pp.delete_from_page_cache
      1.95 ± 19%      -0.7        1.22 ± 17%  perf-profile.children.cycles-pp.hrtimer_interrupt
      2.25 ± 18%      -0.7        1.52 ± 20%  perf-profile.children.cycles-pp.serial8250_console_write
      2.08 ± 15%      -0.7        1.39 ± 19%  perf-profile.children.cycles-pp.memcpy_erms
      2.08 ± 15%      -0.7        1.39 ± 19%  perf-profile.children.cycles-pp.drm_fb_helper_dirty_work
      2.10 ± 15%      -0.7        1.42 ± 19%  perf-profile.children.cycles-pp.ret_from_fork
      2.10 ± 15%      -0.7        1.42 ± 19%  perf-profile.children.cycles-pp.kthread
      2.08 ± 15%      -0.7        1.40 ± 19%  perf-profile.children.cycles-pp.worker_thread
      2.08 ± 15%      -0.7        1.40 ± 19%  perf-profile.children.cycles-pp.process_one_work
      2.10 ± 18%      -0.7        1.44 ± 20%  perf-profile.children.cycles-pp.uart_console_write
      2.05 ± 17%      -0.7        1.40 ± 20%  perf-profile.children.cycles-pp.wait_for_xmitr
      1.92 ± 17%      -0.6        1.32 ± 20%  perf-profile.children.cycles-pp.serial8250_console_putchar
      3.44 ± 14%      -0.6        2.89 ± 10%  perf-profile.children.cycles-pp.shmem_alloc_and_acct_page
      1.18 ± 19%      -0.6        0.63 ± 31%  perf-profile.children.cycles-pp.free_unref_page_list
      1.23 ± 17%      -0.6        0.68 ± 29%  perf-profile.children.cycles-pp.__delete_from_page_cache
      1.62 ± 17%      -0.5        1.09 ± 20%  perf-profile.children.cycles-pp.io_serial_in
      1.21 ± 21%      -0.5        0.76 ± 19%  perf-profile.children.cycles-pp.__hrtimer_run_queues
      4.10 ± 14%      -0.4        3.67 ± 11%  perf-profile.children.cycles-pp.swapgs_restore_regs_and_return_to_usermode
      2.52 ± 13%      -0.4        2.11 ± 11%  perf-profile.children.cycles-pp.shmem_alloc_page
      0.82 ± 18%      -0.4        0.44 ± 32%  perf-profile.children.cycles-pp.free_pcppages_bulk
      2.25 ± 13%      -0.4        1.88 ± 11%  perf-profile.children.cycles-pp.alloc_pages_vma
      0.90 ± 21%      -0.3        0.55 ± 17%  perf-profile.children.cycles-pp.tick_sched_timer
      1.98 ± 13%      -0.3        1.65 ± 10%  perf-profile.children.cycles-pp.__alloc_pages_nodemask
      0.74 ± 13%      -0.3        0.42 ± 12%  perf-profile.children.cycles-pp.irq_exit
      0.92 ± 15%      -0.3        0.60 ± 20%  perf-profile.children.cycles-pp.xas_store
      0.72 ± 16%      -0.3        0.41 ± 11%  perf-profile.children.cycles-pp.ktime_get
      0.61 ± 18%      -0.3        0.33 ± 36%  perf-profile.children.cycles-pp.__free_one_page
      0.74 ± 21%      -0.3        0.47 ± 21%  perf-profile.children.cycles-pp.tick_sched_handle
      0.72 ± 20%      -0.3        0.45 ± 19%  perf-profile.children.cycles-pp.update_process_times
      1.60 ± 15%      -0.3        1.33 ± 13%  perf-profile.children.cycles-pp.shmem_add_to_page_cache
      0.66 ± 14%      -0.3        0.40 ± 21%  perf-profile.children.cycles-pp.menu_select
      1.51 ± 13%      -0.2        1.26 ±  9%  perf-profile.children.cycles-pp.get_page_from_freelist
      0.47 ± 20%      -0.2        0.25 ± 28%  perf-profile.children.cycles-pp.find_get_entries
      1.04 ± 15%      -0.2        0.83 ± 17%  perf-profile.children.cycles-pp.xas_load
      0.54 ± 15%      -0.2        0.33 ± 25%  perf-profile.children.cycles-pp.__list_del_entry_valid
      0.52 ± 16%      -0.2        0.32 ± 13%  perf-profile.children.cycles-pp.clockevents_program_event
      1.23 ± 12%      -0.2        1.03 ± 10%  perf-profile.children.cycles-pp.rmqueue
      0.44 ± 14%      -0.2        0.25 ± 17%  perf-profile.children.cycles-pp.tick_nohz_get_sleep_length
      0.99 ± 14%      -0.2        0.80 ± 17%  perf-profile.children.cycles-pp.unlock_page
      0.39 ± 14%      -0.2        0.21 ± 27%  perf-profile.children.cycles-pp.xas_init_marks
      0.44 ± 12%      -0.2        0.26 ± 19%  perf-profile.children.cycles-pp.__softirqentry_text_start
      0.38 ± 13%      -0.2        0.21 ± 15%  perf-profile.children.cycles-pp.tick_nohz_next_event
      1.21 ± 11%      -0.2        1.04 ± 12%  perf-profile.children.cycles-pp.sync_regs
      0.63 ± 17%      -0.2        0.47 ± 15%  perf-profile.children.cycles-pp.__mod_node_page_state
      0.41 ± 16%      -0.1        0.28 ± 16%  perf-profile.children.cycles-pp.scheduler_tick
      0.28 ± 14%      -0.1        0.15 ± 30%  perf-profile.children.cycles-pp.xas_clear_mark
      0.51 ± 17%      -0.1        0.37 ± 21%  perf-profile.children.cycles-pp.vt_console_print
      0.49 ± 17%      -0.1        0.36 ± 21%  perf-profile.children.cycles-pp.fbcon_redraw
      0.73 ± 13%      -0.1        0.60 ± 10%  perf-profile.children.cycles-pp.rmqueue_bulk
      0.49 ± 17%      -0.1        0.37 ± 21%  perf-profile.children.cycles-pp.lf
      0.49 ± 17%      -0.1        0.37 ± 21%  perf-profile.children.cycles-pp.con_scroll
      0.49 ± 17%      -0.1        0.37 ± 21%  perf-profile.children.cycles-pp.fbcon_scroll
      1.21 ± 11%      -0.1        1.08 ± 10%  perf-profile.children.cycles-pp.__count_memcg_events
      0.27 ± 20%      -0.1        0.15 ± 31%  perf-profile.children.cycles-pp.mem_cgroup_uncharge_list
      0.48 ± 17%      -0.1        0.36 ± 21%  perf-profile.children.cycles-pp.fbcon_putcs
      0.48 ± 18%      -0.1        0.36 ± 20%  perf-profile.children.cycles-pp.bit_putcs
      0.44 ± 18%      -0.1        0.33 ± 20%  perf-profile.children.cycles-pp.drm_fb_helper_sys_imageblit
      0.44 ± 18%      -0.1        0.33 ± 20%  perf-profile.children.cycles-pp.sys_imageblit
      0.21 ± 10%      -0.1        0.10 ± 25%  perf-profile.children.cycles-pp.tick_nohz_irq_exit
      0.74 ± 14%      -0.1        0.63 ± 14%  perf-profile.children.cycles-pp.__perf_sw_event
      0.22 ± 20%      -0.1        0.12 ± 25%  perf-profile.children.cycles-pp.unaccount_page_cache_page
      0.78 ± 15%      -0.1        0.68 ± 14%  perf-profile.children.cycles-pp.xas_find
      0.58 ± 13%      -0.1        0.48 ± 14%  perf-profile.children.cycles-pp.___perf_sw_event
      0.48 ± 11%      -0.1        0.39 ± 10%  perf-profile.children.cycles-pp._raw_spin_lock
      0.12 ± 25%      -0.1        0.04 ±106%  perf-profile.children.cycles-pp.timekeeping_max_deferment
      0.34 ± 21%      -0.1        0.27 ± 20%  perf-profile.children.cycles-pp._raw_spin_unlock_irqrestore
      0.17 ± 13%      -0.1        0.10 ± 19%  perf-profile.children.cycles-pp.rebalance_domains
      0.20 ± 12%      -0.1        0.12 ± 26%  perf-profile.children.cycles-pp.get_next_timer_interrupt
      0.15 ± 35%      -0.1        0.08 ± 23%  perf-profile.children.cycles-pp.irq_work_run_list
      0.16 ± 18%      -0.1        0.09 ± 27%  perf-profile.children.cycles-pp.uncharge_batch
      0.19 ± 22%      -0.1        0.12 ± 20%  perf-profile.children.cycles-pp.io_serial_out
      0.17 ± 16%      -0.1        0.11 ± 19%  perf-profile.children.cycles-pp.perf_mux_hrtimer_handler
      0.22 ± 19%      -0.1        0.15 ± 29%  perf-profile.children.cycles-pp.page_mapping
      0.13 ± 20%      -0.1        0.07 ± 26%  perf-profile.children.cycles-pp.page_cache_free_page
      0.26 ± 20%      -0.1        0.20 ± 14%  perf-profile.children.cycles-pp.percpu_counter_add_batch
      0.09 ± 23%      -0.1        0.03 ±100%  perf-profile.children.cycles-pp.free_unref_page_prepare
      0.20 ± 16%      -0.1        0.15 ± 15%  perf-profile.children.cycles-pp.__list_add_valid
      0.17 ± 16%      -0.1        0.11 ± 13%  perf-profile.children.cycles-pp.task_tick_fair
      0.12 ± 23%      -0.1        0.07 ± 23%  perf-profile.children.cycles-pp.free_unref_page_commit
      0.14 ± 19%      -0.1        0.08 ± 13%  perf-profile.children.cycles-pp.irqtime_account_irq
      0.13 ± 19%      -0.1        0.08 ± 15%  perf-profile.children.cycles-pp.lapic_next_deadline
      0.09 ± 24%      -0.1        0.04 ± 58%  perf-profile.children.cycles-pp.read
      0.10 ± 21%      -0.1        0.04 ± 63%  perf-profile.children.cycles-pp.uncharge_page
      0.10 ± 22%      -0.0        0.05 ± 64%  perf-profile.children.cycles-pp.rcu_sched_clock_irq
      0.14 ± 15%      -0.0        0.09 ± 24%  perf-profile.children.cycles-pp.__next_timer_interrupt
      0.10 ± 19%      -0.0        0.05 ± 62%  perf-profile.children.cycles-pp._find_next_bit
      0.26 ± 18%      -0.0        0.21 ± 18%  perf-profile.children.cycles-pp.xas_start
      0.15 ± 15%      -0.0        0.10 ± 25%  perf-profile.children.cycles-pp.__mod_zone_page_state
      0.12 ± 18%      -0.0        0.08 ± 26%  perf-profile.children.cycles-pp.read_tsc
      0.14 ± 18%      -0.0        0.10 ± 23%  perf-profile.children.cycles-pp.__indirect_thunk_start
      0.10 ± 18%      -0.0        0.06 ± 26%  perf-profile.children.cycles-pp.load_balance
      0.11 ± 27%      -0.0        0.07 ± 17%  perf-profile.children.cycles-pp.irq_work_interrupt
      0.11 ± 27%      -0.0        0.07 ± 17%  perf-profile.children.cycles-pp.smp_irq_work_interrupt
      0.11 ± 27%      -0.0        0.07 ± 17%  perf-profile.children.cycles-pp.irq_work_run
      0.11 ± 27%      -0.0        0.07 ± 17%  perf-profile.children.cycles-pp.printk
      0.15 ± 22%      -0.0        0.11 ±  7%  perf-profile.children.cycles-pp.PageHuge
      0.09 ± 19%      -0.0        0.06 ± 20%  perf-profile.children.cycles-pp.rcu_core
      0.10 ± 15%      -0.0        0.07 ± 24%  perf-profile.children.cycles-pp.sched_clock
      0.16 ± 12%      -0.0        0.14 ± 13%  perf-profile.children.cycles-pp.___might_sleep
      0.09 ±  7%      +0.2        0.27 ± 17%  perf-profile.children.cycles-pp.mem_cgroup_page_lruvec
      0.00            +1.2        1.21 ± 49%  perf-profile.children.cycles-pp.__munmap
     11.33 ± 15%     +10.6       21.96 ± 10%  perf-profile.children.cycles-pp._raw_spin_lock_irqsave
     13.21 ± 15%     +10.7       23.88 ± 10%  perf-profile.children.cycles-pp.__lru_cache_add
     11.16 ± 15%     +10.7       21.87 ± 10%  perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
     13.04 ± 15%     +10.7       23.76 ± 10%  perf-profile.children.cycles-pp.pagevec_lru_move_fn
     11.07 ± 17%      -5.6        5.48 ± 12%  perf-profile.self.cycles-pp.intel_idle
      2.62 ± 15%      -1.4        1.21 ±  6%  perf-profile.self.cycles-pp.get_mem_cgroup_from_mm
      6.22 ± 14%      -1.0        5.24 ± 12%  perf-profile.self.cycles-pp.shmem_getpage_gfp
      5.45 ± 14%      -0.9        4.58 ± 12%  perf-profile.self.cycles-pp.clear_page_erms
      1.35 ± 13%      -0.8        0.52 ±  6%  perf-profile.self.cycles-pp.mem_cgroup_try_charge
      2.06 ± 15%      -0.7        1.38 ± 19%  perf-profile.self.cycles-pp.memcpy_erms
      3.95 ± 12%      -0.5        3.40 ± 11%  perf-profile.self.cycles-pp.filemap_map_pages
      1.62 ± 17%      -0.5        1.09 ± 20%  perf-profile.self.cycles-pp.io_serial_in
      0.62 ± 15%      -0.3        0.34 ± 10%  perf-profile.self.cycles-pp.ktime_get
      0.66 ± 16%      -0.2        0.41 ± 20%  perf-profile.self.cycles-pp.release_pages
      0.52 ± 15%      -0.2        0.32 ± 26%  perf-profile.self.cycles-pp.__list_del_entry_valid
      0.41 ± 21%      -0.2        0.22 ± 27%  perf-profile.self.cycles-pp.find_get_entries
      0.42 ± 17%      -0.2        0.23 ± 35%  perf-profile.self.cycles-pp.__free_one_page
      1.22 ± 13%      -0.2        1.03 ± 13%  perf-profile.self.cycles-pp.swapgs_restore_regs_and_return_to_usermode
      0.93 ± 13%      -0.2        0.75 ± 17%  perf-profile.self.cycles-pp.unlock_page
      1.20 ± 12%      -0.2        1.03 ± 12%  perf-profile.self.cycles-pp.sync_regs
      0.79 ± 14%      -0.2        0.62 ± 17%  perf-profile.self.cycles-pp.xas_load
      0.61 ± 17%      -0.2        0.46 ± 15%  perf-profile.self.cycles-pp.__mod_node_page_state
      0.29 ± 21%      -0.1        0.15 ± 30%  perf-profile.self.cycles-pp.shmem_undo_range
      1.20 ± 11%      -0.1        1.07 ± 11%  perf-profile.self.cycles-pp.__count_memcg_events
      0.26 ± 12%      -0.1        0.13 ± 30%  perf-profile.self.cycles-pp.xas_clear_mark
      0.31 ± 15%      -0.1        0.19 ± 14%  perf-profile.self.cycles-pp._raw_spin_lock_irqsave
      0.61 ± 13%      -0.1        0.49 ± 17%  perf-profile.self.cycles-pp.__pagevec_lru_add_fn
      0.44 ± 18%      -0.1        0.33 ± 20%  perf-profile.self.cycles-pp.sys_imageblit
      0.38 ± 12%      -0.1        0.28 ± 15%  perf-profile.self.cycles-pp.xas_store
      0.27 ± 13%      -0.1        0.17 ± 18%  perf-profile.self.cycles-pp.cpuidle_enter_state
      0.41 ± 11%      -0.1        0.31 ± 10%  perf-profile.self.cycles-pp.try_charge
      0.24 ± 18%      -0.1        0.15 ± 24%  perf-profile.self.cycles-pp._raw_spin_unlock_irqrestore
      0.12 ± 27%      -0.1        0.04 ±106%  perf-profile.self.cycles-pp.timekeeping_max_deferment
      0.48 ± 13%      -0.1        0.40 ± 12%  perf-profile.self.cycles-pp.___perf_sw_event
      0.15 ± 18%      -0.1        0.08 ± 23%  perf-profile.self.cycles-pp.free_pcppages_bulk
      0.45 ± 12%      -0.1        0.39 ± 11%  perf-profile.self.cycles-pp.rmqueue_bulk
      0.19 ± 22%      -0.1        0.12 ± 20%  perf-profile.self.cycles-pp.io_serial_out
      0.10 ± 24%      -0.1        0.03 ±102%  perf-profile.self.cycles-pp.free_unref_page_commit
      0.15 ± 22%      -0.1        0.09 ± 37%  perf-profile.self.cycles-pp.__delete_from_page_cache
      0.13 ± 21%      -0.1        0.07 ± 23%  perf-profile.self.cycles-pp.page_cache_free_page
      0.11 ± 22%      -0.1        0.05 ± 61%  perf-profile.self.cycles-pp.unaccount_page_cache_page
      0.11 ± 15%      -0.1        0.04 ± 63%  perf-profile.self.cycles-pp.free_unref_page_list
      0.19 ± 16%      -0.1        0.13 ± 18%  perf-profile.self.cycles-pp.__list_add_valid
      0.30 ± 12%      -0.1        0.24 ±  9%  perf-profile.self.cycles-pp.__alloc_pages_nodemask
      0.20 ± 20%      -0.1        0.14 ± 28%  perf-profile.self.cycles-pp.page_mapping
      0.08 ± 23%      -0.1        0.03 ±100%  perf-profile.self.cycles-pp.irqtime_account_irq
      0.24 ± 22%      -0.1        0.18 ± 15%  perf-profile.self.cycles-pp.percpu_counter_add_batch
      0.09 ± 20%      -0.1        0.03 ±105%  perf-profile.self.cycles-pp.rcu_sched_clock_irq
      0.34 ± 14%      -0.1        0.29 ± 11%  perf-profile.self.cycles-pp.handle_mm_fault
      0.13 ± 17%      -0.1        0.08 ± 15%  perf-profile.self.cycles-pp.lapic_next_deadline
      0.12 ± 15%      -0.0        0.07 ± 17%  perf-profile.self.cycles-pp.xas_init_marks
      0.14 ± 14%      -0.0        0.10 ± 23%  perf-profile.self.cycles-pp.__mod_zone_page_state
      0.09 ± 19%      -0.0        0.05 ± 62%  perf-profile.self.cycles-pp._find_next_bit
      0.23 ± 19%      -0.0        0.20 ± 18%  perf-profile.self.cycles-pp.xas_start
      0.11 ± 17%      -0.0        0.08 ± 24%  perf-profile.self.cycles-pp.read_tsc
      0.09 ± 15%      -0.0        0.06 ± 26%  perf-profile.self.cycles-pp.native_sched_clock
      0.16 ± 13%      -0.0        0.14 ± 11%  perf-profile.self.cycles-pp.___might_sleep
      0.08 ± 10%      +0.2        0.26 ± 18%  perf-profile.self.cycles-pp.mem_cgroup_page_lruvec
      0.49 ± 17%      +0.4        0.93 ± 12%  perf-profile.self.cycles-pp.page_add_file_rmap
     11.15 ± 15%     +10.7       21.87 ± 10%  perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath


                                                                                
                          vm-scalability.time.system_time                       
                                                                                
  4000 +--------------------------------------------------------------------+   
       | O O O  O O O     O    O O O O          O     O    O   O   O  O O   |   
  3500 |-+            O O    O         O  O O O     O    O       O          |   
  3000 |.+.+.+..+.+.+.+.+.+..+.+.+.+.+.+..+.+.+.+.+.+.+..+.+.    +.+..+.+.+.|   
       |                                                     +   :          |   
  2500 |-+                                                   :   :          |   
       |                                                     :  :           |   
  2000 |-+                                                    : :           |   
       |                                                      : :           |   
  1500 |-+                                                    : :           |   
  1000 |-+                                                    : :           |   
       |                                                      : :           |   
   500 |-+                                                     :            |   
       |                                                       :            |   
     0 +--------------------------------------------------------------------+   
                                                                                
                                                                                                                                                                
                              vm-scalability.throughput                         
                                                                                
  6e+07 +-------------------------------------------------------------------+   
        |                                                                   |   
  5e+07 |-+       .+.+.+.+.+.+.+..                      .+. .+   +..+.+.+.+.|   
        |.+.+.+..+ O O O O O O O  +.+.+.+.+.+.+.+..+.+.+ O + : O :  O O     |   
        |                                                    :   :      O   |   
  4e+07 |-+                                                   :  :          |   
        |                                                     : :           |   
  3e+07 |-+                                                   : :           |   
        |                                                     : :           |   
  2e+07 |-+                                                   : :           |   
        |                                                     : :           |   
        |                                                      ::           |   
  1e+07 |-+                                                    :            |   
        |                                                      :            |   
      0 +-------------------------------------------------------------------+   
                                                                                
                                                                                
[*] bisect-good sample
[O] bisect-bad  sample



Disclaimer:
Results have been estimated based on internal Intel analysis and are provided
for informational purposes only. Any difference in system hardware or software
design or configuration may affect actual performance.


Thanks,
Rong Chen


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