lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Date:   Mon, 2 Nov 2020 17:14:28 +0800
From:   kernel test robot <rong.a.chen@...el.com>
To:     Peter Xu <peterx@...hat.com>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        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/gup] a308c71bf1: stress-ng.vm-splice.ops_per_sec -95.6%
 regression

Greeting,

FYI, we noticed a -95.6% regression of stress-ng.vm-splice.ops_per_sec due to commit:


commit: a308c71bf1e6e19cc2e4ced31853ee0fc7cb439a ("mm/gup: Remove enfornced COW mechanism")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master


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

	nr_threads: 100%
	disk: 1HDD
	testtime: 30s
	class: pipe
	cpufreq_governor: performance
	ucode: 0x5002f01




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

=========================================================================================
class/compiler/cpufreq_governor/disk/kconfig/nr_threads/rootfs/tbox_group/testcase/testtime/ucode:
  pipe/gcc-9/performance/1HDD/x86_64-rhel-8.3/100%/debian-10.4-x86_64-20200603.cgz/lkp-csl-2sp5/stress-ng/30s/0x5002f01

commit: 
  1a0cf26323 ("mm/ksm: Remove reuse_ksm_page()")
  a308c71bf1 ("mm/gup: Remove enfornced COW mechanism")

1a0cf26323c80e2f a308c71bf1e6e19cc2e4ced3185 
---------------- --------------------------- 
         %stddev     %change         %stddev
             \          |                \  
     18804            +2.1%      19191        stress-ng.time.system_time
      1059           -35.9%     678.99 ±  4%  stress-ng.time.user_time
 1.556e+08 ±  7%     +10.3%  1.716e+08 ±  4%  stress-ng.time.voluntary_context_switches
 3.406e+09           -95.6%   1.49e+08        stress-ng.vm-splice.ops
 1.135e+08           -95.6%    4965911        stress-ng.vm-splice.ops_per_sec
      5.11            -1.8        3.26 ±  4%  mpstat.cpu.all.usr%
     91.93            +2.0%      93.77        iostat.cpu.system
      5.07           -36.2%       3.23 ±  4%  iostat.cpu.user
     28348            +6.7%      30235 ±  2%  proc-vmstat.nr_kernel_stack
     12148 ±  5%     +11.2%      13513 ±  5%  proc-vmstat.nr_page_table_pages
      2767 ±  4%      +8.0%       2987 ±  5%  slabinfo.PING.active_objs
      2767 ±  4%      +8.0%       2987 ±  5%  slabinfo.PING.num_objs
     91.25            +1.9%      93.00        vmstat.cpu.sy
    994917 ±  9%     +11.4%    1108222 ±  4%  vmstat.system.cs
     13547 ±  6%     -14.9%      11524 ±  9%  numa-vmstat.node0.nr_slab_reclaimable
     40767 ±112%    +128.4%      93118 ± 61%  numa-vmstat.node0.numa_other
     12466 ±  6%     +15.9%      14448 ±  6%  numa-vmstat.node1.nr_slab_reclaimable
     54181 ±  6%     -14.9%      46101 ±  9%  numa-meminfo.node0.KReclaimable
     54181 ±  6%     -14.9%      46101 ±  9%  numa-meminfo.node0.SReclaimable
      6689 ± 52%     +73.2%      11588 ± 34%  numa-meminfo.node1.Inactive
      6689 ± 52%     +73.2%      11588 ± 34%  numa-meminfo.node1.Inactive(anon)
     49867 ±  6%     +15.9%      57793 ±  6%  numa-meminfo.node1.KReclaimable
     49867 ±  6%     +15.9%      57793 ±  6%  numa-meminfo.node1.SReclaimable
     79.25 ± 12%     -35.0%      51.50 ±  8%  sched_debug.cfs_rq:/.nr_spread_over.max
      9.76 ± 10%     -22.7%       7.55 ±  9%  sched_debug.cfs_rq:/.nr_spread_over.stddev
    276.75 ± 11%     -19.1%     224.01 ± 11%  sched_debug.cfs_rq:/.runnable_avg.stddev
    414265 ± 27%     -44.1%     231543 ± 45%  sched_debug.cfs_rq:/.spread0.avg
   1199728 ± 14%     -28.1%     863115 ± 23%  sched_debug.cfs_rq:/.spread0.max
     20.22 ± 49%     -48.0%      10.52 ± 18%  sched_debug.cpu.clock.stddev
   1410577 ± 10%     +13.1%    1594913 ±  5%  sched_debug.cpu.nr_switches.avg
   1409041 ± 10%     +13.1%    1593368 ±  5%  sched_debug.cpu.sched_count.avg
    980469 ±  9%     +12.5%    1102701 ±  4%  sched_debug.cpu.ttwu_count.avg
    866170 ± 10%     +13.9%     986450 ±  5%  sched_debug.cpu.ttwu_local.avg
     38.20 ±  7%      -6.3       31.86 ± 16%  perf-profile.calltrace.cycles-pp.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe
     37.36 ±  7%      -6.2       31.12 ± 16%  perf-profile.calltrace.cycles-pp.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe
     33.38 ±  7%      -5.7       27.65 ± 15%  perf-profile.calltrace.cycles-pp.new_sync_read.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe
     32.56 ±  7%      -5.6       26.93 ± 15%  perf-profile.calltrace.cycles-pp.pipe_read.new_sync_read.vfs_read.ksys_read.do_syscall_64
     26.32 ±  7%      -5.1       21.23 ± 14%  perf-profile.calltrace.cycles-pp.__wake_up_common_lock.pipe_read.new_sync_read.vfs_read.ksys_read
     26.00 ±  7%      -5.1       20.92 ± 14%  perf-profile.calltrace.cycles-pp.__wake_up_common.__wake_up_common_lock.pipe_read.new_sync_read.vfs_read
     25.98 ±  7%      -5.1       20.89 ± 14%  perf-profile.calltrace.cycles-pp.autoremove_wake_function.__wake_up_common.__wake_up_common_lock.pipe_read.new_sync_read
     25.96 ±  7%      -5.1       20.88 ± 14%  perf-profile.calltrace.cycles-pp.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_common_lock.pipe_read
     24.74 ±  8%      -5.0       19.70 ± 15%  perf-profile.calltrace.cycles-pp.ttwu_do_activate.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_common_lock
     24.73 ±  8%      -5.0       19.70 ± 15%  perf-profile.calltrace.cycles-pp.enqueue_task_fair.ttwu_do_activate.try_to_wake_up.autoremove_wake_function.__wake_up_common
     24.30 ±  8%      -5.0       19.32 ± 15%  perf-profile.calltrace.cycles-pp.enqueue_entity.enqueue_task_fair.ttwu_do_activate.try_to_wake_up.autoremove_wake_function
      1.00 ± 23%      +0.4        1.40 ± 16%  perf-profile.calltrace.cycles-pp.arch_stack_walk.stack_trace_save_tsk.__account_scheduler_latency.update_stats_enqueue_sleeper.enqueue_entity
      1.05 ± 23%      +0.4        1.48 ± 16%  perf-profile.calltrace.cycles-pp.stack_trace_save_tsk.__account_scheduler_latency.update_stats_enqueue_sleeper.enqueue_entity.enqueue_task_fair
     11.09            +0.5       11.60 ±  3%  perf-profile.calltrace.cycles-pp.do_select.core_sys_select.kern_select.__x64_sys_select.do_syscall_64
     38.23 ±  7%      -6.3       31.88 ± 16%  perf-profile.children.cycles-pp.ksys_read
     37.45 ±  7%      -6.3       31.20 ± 16%  perf-profile.children.cycles-pp.vfs_read
     33.41 ±  7%      -5.7       27.68 ± 15%  perf-profile.children.cycles-pp.new_sync_read
     32.63 ±  7%      -5.6       26.99 ± 15%  perf-profile.children.cycles-pp.pipe_read
     25.98 ±  7%      -5.1       20.90 ± 14%  perf-profile.children.cycles-pp.autoremove_wake_function
      0.09 ±  7%      +0.0        0.11 ±  4%  perf-profile.children.cycles-pp.pick_next_entity
      0.27 ±  4%      +0.0        0.31 ±  3%  perf-profile.children.cycles-pp.load_new_mm_cr3
      0.39 ±  4%      +0.1        0.45 ±  3%  perf-profile.children.cycles-pp.switch_mm_irqs_off
      0.50 ±  4%      +0.1        0.56 ±  2%  perf-profile.children.cycles-pp.pick_next_task_fair
      0.06 ± 60%      +0.1        0.11 ± 21%  perf-profile.children.cycles-pp.__mutex_unlock_slowpath
      2.11 ±  4%      +0.3        2.40 ±  4%  perf-profile.children.cycles-pp.schedule
     11.21            +0.5       11.71 ±  2%  perf-profile.children.cycles-pp.do_select
      0.05            +0.0        0.06        perf-profile.self.cycles-pp.finish_task_switch
      0.05 ±  8%      +0.0        0.07 ±  7%  perf-profile.self.cycles-pp.dequeue_task_fair
      0.23 ±  3%      +0.0        0.26 ±  4%  perf-profile.self.cycles-pp.__sched_text_start
      0.27 ±  4%      +0.0        0.31 ±  3%  perf-profile.self.cycles-pp.load_new_mm_cr3
     11.52 ±  3%      +8.8%      12.53        perf-stat.i.MPKI
 3.307e+10           -20.3%  2.636e+10 ±  2%  perf-stat.i.branch-instructions
      0.73            +0.0        0.75        perf-stat.i.branch-miss-rate%
 1.957e+08           -27.3%  1.423e+08 ±  3%  perf-stat.i.branch-misses
    987322 ±  9%     +13.0%    1115216 ±  4%  perf-stat.i.context-switches
      4.95 ±  3%     +43.7%       7.11        perf-stat.i.cpi
 4.722e+10           -20.9%  3.737e+10 ±  2%  perf-stat.i.dTLB-loads
 2.789e+10           -22.3%  2.168e+10 ±  3%  perf-stat.i.dTLB-stores
 1.659e+08 ±  3%     -29.2%  1.175e+08 ±  5%  perf-stat.i.iTLB-load-misses
 1.654e+11           -21.1%  1.305e+11 ±  2%  perf-stat.i.instructions
      0.67           -20.7%       0.53 ±  2%  perf-stat.i.ipc
      1.19 ±  5%     -23.8%       0.91 ±  5%  perf-stat.i.metric.K/sec
      1130           -21.0%     893.12 ±  3%  perf-stat.i.metric.M/sec
     91.95            +0.9       92.88        perf-stat.i.node-store-miss-rate%
      2.03 ±  5%     +31.1%       2.66 ±  5%  perf-stat.overall.MPKI
      0.59            -0.0        0.54        perf-stat.overall.branch-miss-rate%
      1.54           +28.4%       1.98 ±  2%  perf-stat.overall.cpi
      0.00 ±  3%      +0.0        0.00 ±  6%  perf-stat.overall.dTLB-store-miss-rate%
     97.08            -1.4       95.70        perf-stat.overall.iTLB-load-miss-rate%
    991.26 ±  3%     +10.9%       1099 ±  2%  perf-stat.overall.instructions-per-iTLB-miss
      0.65           -22.0%       0.51 ±  2%  perf-stat.overall.ipc
     87.39            +2.0       89.39        perf-stat.overall.node-store-miss-rate%
 3.271e+10           -20.8%  2.592e+10 ±  3%  perf-stat.ps.branch-instructions
 1.945e+08           -27.4%  1.412e+08 ±  3%  perf-stat.ps.branch-misses
   1004771 ±  9%     +11.5%    1119933 ±  4%  perf-stat.ps.context-switches
 4.669e+10           -21.3%  3.674e+10 ±  3%  perf-stat.ps.dTLB-loads
 2.756e+10           -22.7%  2.131e+10 ±  3%  perf-stat.ps.dTLB-stores
 1.652e+08 ±  3%     -29.3%  1.168e+08 ±  5%  perf-stat.ps.iTLB-load-misses
 1.635e+11           -21.6%  1.283e+11 ±  3%  perf-stat.ps.instructions
 3.497e+13           -21.6%  2.741e+13 ±  3%  perf-stat.total.instructions
      6739 ± 14%     +33.4%       8988 ± 12%  softirqs.CPU14.SCHED
      6775 ± 15%     +36.0%       9217 ±  8%  softirqs.CPU19.SCHED
      7359 ± 17%     +29.1%       9500 ± 14%  softirqs.CPU2.SCHED
      9708 ± 10%     -19.5%       7811 ±  5%  softirqs.CPU24.SCHED
      9651 ±  8%     -18.2%       7890 ±  3%  softirqs.CPU25.SCHED
      9444 ±  6%     -18.1%       7737 ± 10%  softirqs.CPU27.SCHED
      9578 ± 10%     -18.3%       7826 ±  5%  softirqs.CPU30.SCHED
      9469 ±  8%     -16.8%       7882 ±  5%  softirqs.CPU31.SCHED
      9826 ±  8%     -16.1%       8246 ±  7%  softirqs.CPU32.SCHED
      9319 ±  9%     -15.0%       7922 ±  5%  softirqs.CPU34.SCHED
     10167 ± 10%     -20.1%       8123 ±  3%  softirqs.CPU35.SCHED
      9208 ±  8%     -15.6%       7772 ±  5%  softirqs.CPU36.SCHED
      9641 ±  6%     -17.8%       7921 ±  7%  softirqs.CPU37.SCHED
      9399 ±  7%     -16.0%       7896 ±  6%  softirqs.CPU38.SCHED
      9275 ±  6%     -15.4%       7851 ±  6%  softirqs.CPU39.SCHED
      9937 ± 12%     -21.6%       7786 ±  4%  softirqs.CPU40.SCHED
      9259 ±  6%     -16.2%       7758 ±  6%  softirqs.CPU41.SCHED
      9490 ±  6%     -16.7%       7901 ±  4%  softirqs.CPU42.SCHED
      9504 ±  8%     -18.6%       7736 ±  5%  softirqs.CPU43.SCHED
      9602 ±  8%     -17.4%       7926 ±  2%  softirqs.CPU44.SCHED
      9564 ±  7%     -18.5%       7796 ±  5%  softirqs.CPU46.SCHED
      6581 ± 12%     +26.9%       8353 ± 14%  softirqs.CPU50.SCHED
      6864 ± 17%     +27.7%       8762 ± 16%  softirqs.CPU55.SCHED
      6495 ± 10%     +31.4%       8537 ± 12%  softirqs.CPU61.SCHED
      6294 ±  2%     +42.8%       8985 ± 20%  softirqs.CPU69.SCHED
      9312 ±  8%     -20.1%       7439 ±  8%  softirqs.CPU72.SCHED
      9408 ±  6%     -19.1%       7615 ±  5%  softirqs.CPU74.SCHED
      9348 ±  8%     -15.9%       7863 ±  5%  softirqs.CPU75.SCHED
      9506 ±  7%     -17.4%       7855 ±  5%  softirqs.CPU76.SCHED
      9433 ±  8%     -16.8%       7851 ±  5%  softirqs.CPU77.SCHED
      9585 ± 10%     -19.3%       7737 ±  5%  softirqs.CPU78.SCHED
      9381 ±  9%     -17.2%       7765 ±  4%  softirqs.CPU79.SCHED
      9559 ±  7%     -16.7%       7964 ±  5%  softirqs.CPU80.SCHED
      9357 ±  6%     -15.3%       7927 ±  6%  softirqs.CPU81.SCHED
      9710 ±  9%     -19.4%       7825 ±  6%  softirqs.CPU82.SCHED
      9761 ±  9%     -19.8%       7827 ±  5%  softirqs.CPU83.SCHED
      9433 ±  6%     -16.7%       7856 ±  5%  softirqs.CPU84.SCHED
      9325 ±  7%     -15.7%       7863 ±  5%  softirqs.CPU85.SCHED
      9609 ±  8%     -18.9%       7796 ±  4%  softirqs.CPU88.SCHED
      9290 ±  7%     -17.6%       7654 ±  4%  softirqs.CPU89.SCHED
      9595 ±  9%     -18.5%       7821 ±  5%  softirqs.CPU90.SCHED
      9528 ±  9%     -18.6%       7752 ±  4%  softirqs.CPU91.SCHED
      9660 ±  8%     -19.5%       7773 ±  5%  softirqs.CPU92.SCHED
      9641 ±  8%     -17.5%       7949 ±  5%  softirqs.CPU93.SCHED
      9710 ±  4%     -18.9%       7875 ±  5%  softirqs.CPU94.SCHED
     10107 ±  9%     -22.6%       7821 ±  6%  softirqs.CPU95.SCHED
      1731 ±114%     -88.0%     208.50 ±173%  interrupts.43:PCI-MSI.31981576-edge.i40e-eth0-TxRx-7
      5625 ± 41%     +73.0%       9730 ± 28%  interrupts.CPU11.CAL:Function_call_interrupts
      3192 ± 51%    +500.0%      19155 ± 99%  interrupts.CPU12.CAL:Function_call_interrupts
      5652 ± 59%    +387.9%      27579 ± 96%  interrupts.CPU13.CAL:Function_call_interrupts
      3389 ± 92%    +206.3%      10382 ± 17%  interrupts.CPU16.CAL:Function_call_interrupts
      3212 ± 64%    +781.8%      28328 ± 55%  interrupts.CPU18.CAL:Function_call_interrupts
      5503 ± 51%    +261.3%      19884 ± 65%  interrupts.CPU19.CAL:Function_call_interrupts
      4305 ±  6%     +37.2%       5908 ± 24%  interrupts.CPU20.RES:Rescheduling_interrupts
      3653 ± 36%    +248.2%      12720 ± 12%  interrupts.CPU21.CAL:Function_call_interrupts
      4937 ± 36%     +91.9%       9477 ± 52%  interrupts.CPU22.CAL:Function_call_interrupts
     23314 ± 20%     -75.5%       5720 ± 41%  interrupts.CPU25.CAL:Function_call_interrupts
     22533 ±  8%     -71.8%       6360 ± 35%  interrupts.CPU26.CAL:Function_call_interrupts
     24106 ± 13%     -62.7%       8987 ± 57%  interrupts.CPU27.CAL:Function_call_interrupts
      6111 ± 17%    +367.9%      28593 ± 55%  interrupts.CPU27.RES:Rescheduling_interrupts
     28249 ± 32%     -69.3%       8675 ± 50%  interrupts.CPU28.CAL:Function_call_interrupts
      5584 ± 26%    +402.4%      28060 ± 26%  interrupts.CPU28.RES:Rescheduling_interrupts
     19155 ± 12%     -52.9%       9015 ± 61%  interrupts.CPU29.CAL:Function_call_interrupts
      4946 ± 18%    +368.8%      23186 ± 70%  interrupts.CPU29.RES:Rescheduling_interrupts
     25158 ± 27%     -73.4%       6694 ± 69%  interrupts.CPU30.CAL:Function_call_interrupts
     20595 ± 28%     -63.0%       7620 ± 63%  interrupts.CPU31.CAL:Function_call_interrupts
      6658 ± 23%     -30.6%       4620 ± 33%  interrupts.CPU32.NMI:Non-maskable_interrupts
      6658 ± 23%     -30.6%       4620 ± 33%  interrupts.CPU32.PMI:Performance_monitoring_interrupts
     19923 ± 27%     -70.4%       5906 ± 43%  interrupts.CPU33.CAL:Function_call_interrupts
     21664 ± 35%     -68.5%       6813 ± 44%  interrupts.CPU35.CAL:Function_call_interrupts
     18049 ± 22%     -63.7%       6560 ± 47%  interrupts.CPU36.CAL:Function_call_interrupts
     22299 ± 15%     -60.0%       8913 ± 44%  interrupts.CPU37.CAL:Function_call_interrupts
     16997 ± 16%     -63.7%       6173 ± 56%  interrupts.CPU38.CAL:Function_call_interrupts
     22528 ± 43%     -62.8%       8375 ± 41%  interrupts.CPU39.CAL:Function_call_interrupts
      5373 ± 39%    +100.0%      10743 ± 19%  interrupts.CPU4.CAL:Function_call_interrupts
     20817 ± 16%     -63.8%       7530 ± 62%  interrupts.CPU40.CAL:Function_call_interrupts
     18927 ± 33%     -67.6%       6125 ± 35%  interrupts.CPU41.CAL:Function_call_interrupts
     28780 ± 37%     -66.3%       9688 ± 58%  interrupts.CPU42.CAL:Function_call_interrupts
     23586 ± 20%     -72.2%       6561 ± 37%  interrupts.CPU43.CAL:Function_call_interrupts
     21970 ± 14%     -72.1%       6136 ± 53%  interrupts.CPU44.CAL:Function_call_interrupts
     21667 ± 21%     -47.7%      11326 ± 36%  interrupts.CPU47.CAL:Function_call_interrupts
      4314 ± 42%    +170.1%      11653 ± 44%  interrupts.CPU5.CAL:Function_call_interrupts
      3969 ± 69%    +176.8%      10988 ± 33%  interrupts.CPU53.CAL:Function_call_interrupts
      8525 ± 37%     -33.5%       5672 ± 10%  interrupts.CPU58.RES:Rescheduling_interrupts
      4521 ± 28%    +255.7%      16080 ± 32%  interrupts.CPU61.CAL:Function_call_interrupts
      3924 ± 50%    +242.6%      13445 ± 39%  interrupts.CPU63.CAL:Function_call_interrupts
      3298 ± 45%    +255.7%      11732 ± 44%  interrupts.CPU69.CAL:Function_call_interrupts
      1730 ±114%     -88.0%     208.25 ±173%  interrupts.CPU7.43:PCI-MSI.31981576-edge.i40e-eth0-TxRx-7
     21881 ± 31%     -64.7%       7726 ± 47%  interrupts.CPU73.CAL:Function_call_interrupts
     23394 ± 27%     -64.5%       8308 ± 66%  interrupts.CPU74.CAL:Function_call_interrupts
      6742 ± 17%    +312.2%      27796 ± 38%  interrupts.CPU75.RES:Rescheduling_interrupts
     28453 ± 45%     -72.8%       7728 ± 49%  interrupts.CPU76.CAL:Function_call_interrupts
      5517 ± 43%    +354.3%      25062 ± 20%  interrupts.CPU76.RES:Rescheduling_interrupts
      4801 ± 16%    +433.6%      25624 ± 55%  interrupts.CPU77.RES:Rescheduling_interrupts
     25911 ± 15%     -67.8%       8348 ± 58%  interrupts.CPU78.CAL:Function_call_interrupts
     21248 ± 16%     -67.7%       6863 ± 40%  interrupts.CPU80.CAL:Function_call_interrupts
     21098 ± 23%     -66.8%       6996 ± 34%  interrupts.CPU83.CAL:Function_call_interrupts
     19567 ± 20%     -52.4%       9306 ± 64%  interrupts.CPU84.CAL:Function_call_interrupts
     16578 ± 20%     -58.4%       6902 ± 56%  interrupts.CPU87.CAL:Function_call_interrupts
     21823 ± 28%     -75.4%       5363 ± 41%  interrupts.CPU89.CAL:Function_call_interrupts
     24409 ± 22%     -52.0%      11718 ± 49%  interrupts.CPU90.CAL:Function_call_interrupts
     20699 ± 21%     -74.0%       5389 ± 40%  interrupts.CPU91.CAL:Function_call_interrupts
     18159 ± 14%     -63.7%       6587 ± 67%  interrupts.CPU92.CAL:Function_call_interrupts
     22992 ± 23%     -56.8%       9925 ± 38%  interrupts.CPU93.CAL:Function_call_interrupts
      5656 ± 20%    +368.6%      26505 ± 47%  interrupts.CPU93.RES:Rescheduling_interrupts
     21995 ± 26%     -64.6%       7782 ± 68%  interrupts.CPU94.CAL:Function_call_interrupts
    868396 ±  3%     +20.9%    1050234 ± 14%  interrupts.RES:Rescheduling_interrupts


                                                                                
                             stress-ng.time.system_time                         
                                                                                
  19300 +-------------------------------------------------------------------+   
        |                                                                   |   
  19200 |-+                                  O      O             O  O      |   
        |      O         O                       O      O  O  O             |   
        |                       O         O                                 |   
  19100 |-+O      O         O      O                                        |   
        |             O                O                                    |   
  19000 |-+                                                                 |   
        |                                                                   |   
  18900 |-+                                                                 |   
        |                                                                   |   
        |                                             ..+..  .+...+..+...   |   
  18800 |..                   ..+..+...+..   +...  .+.     +.            +..|   
        |  +...+..+...+..  .+.             ..    +.                         |   
  18700 +-------------------------------------------------------------------+   
                                                                                
                                                                                                                                                                
                                stress-ng.vm-splice.ops                         
                                                                                
  3.5e+09 +-----------------------------------------------------------------+   
          |                                                                 |   
    3e+09 |-+                                                               |   
          |                                                                 |   
  2.5e+09 |-+                                                               |   
          |                                                                 |   
    2e+09 |-+                                                               |   
          |                                                                 |   
  1.5e+09 |-+                                                               |   
          |                                                                 |   
    1e+09 |-+                                                               |   
          |                                                                 |   
    5e+08 |-+                                                               |   
          |  O   O  O  O   O  O  O  O   O  O  O   O  O  O   O  O  O  O      |   
        0 +-----------------------------------------------------------------+   
                                                                                
                                                                                                                                                                
                            stress-ng.vm-splice.ops_per_sec                     
                                                                                
  1.2e+08 +-----------------------------------------------------------------+   
          |..+...+..+..+...+..+..+..+...+..+..+...+..+..+...+..+..+..+...+..|   
    1e+08 |-+                                                               |   
          |                                                                 |   
          |                                                                 |   
    8e+07 |-+                                                               |   
          |                                                                 |   
    6e+07 |-+                                                               |   
          |                                                                 |   
    4e+07 |-+                                                               |   
          |                                                                 |   
          |                                                                 |   
    2e+07 |-+                                                               |   
          |  O   O  O  O   O  O  O  O   O  O  O   O  O  O   O  O  O  O      |   
        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


View attachment "config-5.8.0-00003-ga308c71bf1e6e" of type "text/plain" (169423 bytes)

View attachment "job-script" of type "text/plain" (7946 bytes)

View attachment "job.yaml" of type "text/plain" (5555 bytes)

View attachment "reproduce" of type "text/plain" (390 bytes)

Powered by blists - more mailing lists