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Date:   Sun, 15 Nov 2020 17:55:44 +0800
From:   kernel test robot <oliver.sang@...el.com>
To:     Johannes Weiner <hannes@...xchg.org>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Alex Shi <alex.shi@...ux.alibaba.com>,
        Hugh Dickins <hughd@...gle.com>,
        Joonsoo Kim <iamjoonsoo.kim@....com>,
        "Kirill A. Shutemov" <kirill@...temov.name>,
        Michal Hocko <mhocko@...e.com>, Roman Gushchin <guro@...com>,
        Shakeel Butt <shakeelb@...gle.com>,
        Balbir Singh <bsingharora@...il.com>,
        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]  be5d0a74c6:  will-it-scale.per_thread_ops -9.1% regression


Greeting,

FYI, we noticed a -9.1% regression of will-it-scale.per_thread_ops due to commit:


commit: be5d0a74c62d8da43f9526a5b08cdd18e2bbc37a ("mm: memcontrol: switch to native NR_ANON_MAPPED counter")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master


in testcase: will-it-scale
on test machine: 192 threads Intel(R) Xeon(R) Platinum 9242 CPU @ 2.30GHz with 192G memory
with following parameters:

	nr_task: 50%
	mode: thread
	test: page_fault2
	cpufreq_governor: performance
	ucode: 0x5002f01

test-description: Will It Scale takes a testcase and runs it from 1 through to n parallel copies to see if the testcase will scale. It builds both a process and threads based test in order to see any differences between the two.
test-url: https://github.com/antonblanchard/will-it-scale



If you fix the issue, kindly add following tag
Reported-by: kernel test robot <oliver.sang@...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/mode/nr_task/rootfs/tbox_group/test/testcase/ucode:
  gcc-9/performance/x86_64-rhel-8.3/thread/50%/debian-10.4-x86_64-20200603.cgz/lkp-csl-2ap3/page_fault2/will-it-scale/0x5002f01

commit: 
  0d1c20722a ("mm: memcontrol: switch to native NR_FILE_PAGES and NR_SHMEM counters")
  be5d0a74c6 ("mm: memcontrol: switch to native NR_ANON_MAPPED counter")

0d1c20722ab333ac be5d0a74c62d8da43f9526a5b08 
---------------- --------------------------- 
       fail:runs  %reproduction    fail:runs
           |             |             |    
          0:4            2%           1:4     perf-profile.children.cycles-pp.error_entry
         %stddev     %change         %stddev
             \          |                \  
     24003            -9.1%      21817        will-it-scale.per_thread_ops
   2304340            -9.1%    2094545        will-it-scale.workload
     31.65            -3.3       28.31        mpstat.cpu.all.sys%
   5041945 ±  5%     -15.9%    4238691 ±  7%  sched_debug.cfs_rq:/.min_vruntime.max
 1.906e+08           -23.3%  1.463e+08 ± 19%  numa-numastat.node1.local_node
 1.907e+08           -23.3%  1.463e+08 ± 19%  numa-numastat.node1.numa_hit
      7666 ±  5%      -9.1%       6970 ±  4%  slabinfo.signal_cache.active_objs
      7726 ±  5%      -7.8%       7122 ±  4%  slabinfo.signal_cache.num_objs
     65.50            +5.0%      68.75        vmstat.cpu.id
     63.00 ±  4%     -13.9%      54.25 ±  4%  vmstat.procs.r
     21998            -8.3%      20167        vmstat.system.cs
     32080            +9.3%      35056        softirqs.CPU143.SCHED
     31620            +8.4%      34283 ±  3%  softirqs.CPU145.SCHED
    109145 ±  4%     +29.4%     141275 ± 15%  softirqs.CPU65.TIMER
     23752 ±  9%     -10.3%      21304 ±  8%  softirqs.CPU74.RCU
      9541            -3.5%       9202 ±  2%  proc-vmstat.nr_mapped
 7.004e+08            -8.9%  6.379e+08        proc-vmstat.numa_hit
 7.003e+08            -8.9%  6.378e+08        proc-vmstat.numa_local
     25916 ± 27%     -32.2%      17581 ±  3%  proc-vmstat.numa_pages_migrated
     18598 ±  7%     -14.7%      15872 ±  5%  proc-vmstat.pgactivate
 7.005e+08            -8.9%   6.38e+08        proc-vmstat.pgalloc_normal
 6.957e+08            -9.0%  6.334e+08        proc-vmstat.pgfault
 7.004e+08            -8.9%   6.38e+08        proc-vmstat.pgfree
     25916 ± 27%     -32.2%      17581 ±  3%  proc-vmstat.pgmigrate_success
 2.226e+09            -5.9%  2.095e+09        perf-stat.i.branch-instructions
     69.75            -2.7       67.03        perf-stat.i.cache-miss-rate%
 2.485e+08 ±  2%     -10.6%   2.22e+08 ±  5%  perf-stat.i.cache-misses
 3.552e+08 ±  3%      -7.0%  3.303e+08 ±  6%  perf-stat.i.cache-references
     22139            -8.4%      20269        perf-stat.i.context-switches
     17.59            -5.0%      16.71        perf-stat.i.cpi
 2.013e+11            -9.9%  1.814e+11        perf-stat.i.cpu-cycles
 3.108e+09            -4.9%  2.957e+09        perf-stat.i.dTLB-loads
      1.06            -0.0        1.01        perf-stat.i.dTLB-store-miss-rate%
  18609753            -9.7%   16801004        perf-stat.i.dTLB-store-misses
 1.743e+09            -5.5%  1.646e+09        perf-stat.i.dTLB-stores
   6478243 ±  2%      -8.4%    5931693 ±  4%  perf-stat.i.iTLB-load-misses
   3960032           -10.0%    3562984 ± 15%  perf-stat.i.iTLB-loads
 1.152e+10            -5.1%  1.093e+10        perf-stat.i.instructions
      0.06 ±  2%      +5.6%       0.06        perf-stat.i.ipc
      1.05            -9.9%       0.94        perf-stat.i.metric.GHz
      0.12            -9.0%       0.11        perf-stat.i.metric.K/sec
     39.34            -5.5%      37.19        perf-stat.i.metric.M/sec
   2295534            -9.0%    2087952        perf-stat.i.minor-faults
  74342929            -8.7%   67864433        perf-stat.i.node-loads
  12919196           -10.7%   11532925 ±  2%  perf-stat.i.node-stores
   2295534            -9.0%    2087952        perf-stat.i.page-faults
     69.96            -2.7       67.24        perf-stat.overall.cache-miss-rate%
     17.47            -5.1%      16.58        perf-stat.overall.cpi
      1.06            -0.0        1.01        perf-stat.overall.dTLB-store-miss-rate%
      0.06            +5.4%       0.06        perf-stat.overall.ipc
   1515213            +4.6%    1584252        perf-stat.overall.path-length
 2.218e+09            -5.8%  2.089e+09        perf-stat.ps.branch-instructions
 2.476e+08 ±  2%     -10.6%  2.213e+08 ±  5%  perf-stat.ps.cache-misses
 3.539e+08 ±  3%      -7.0%  3.292e+08 ±  6%  perf-stat.ps.cache-references
     22055            -8.4%      20198        perf-stat.ps.context-switches
 2.005e+11            -9.9%  1.807e+11        perf-stat.ps.cpu-cycles
 3.097e+09            -4.8%  2.948e+09        perf-stat.ps.dTLB-loads
  18541065            -9.7%   16744486        perf-stat.ps.dTLB-store-misses
 1.736e+09            -5.5%  1.641e+09        perf-stat.ps.dTLB-stores
   6453657 ±  2%      -8.4%    5911996 ±  4%  perf-stat.ps.iTLB-load-misses
   3944828           -10.0%    3550349 ± 15%  perf-stat.ps.iTLB-loads
 1.148e+10            -5.0%   1.09e+10        perf-stat.ps.instructions
   2287083            -9.0%    2080917        perf-stat.ps.minor-faults
  74068282            -8.7%   67627572        perf-stat.ps.node-loads
  12871415           -10.7%   11494030 ±  2%  perf-stat.ps.node-stores
   2287083            -9.0%    2080917        perf-stat.ps.page-faults
 3.492e+12            -5.0%  3.318e+12        perf-stat.total.instructions
      0.82 ±  7%      +0.2        1.01        perf-profile.calltrace.cycles-pp.__do_munmap.__vm_munmap.__x64_sys_munmap.do_syscall_64.entry_SYSCALL_64_after_hwframe
      0.81 ±  7%      +0.2        1.00        perf-profile.calltrace.cycles-pp.unmap_region.__do_munmap.__vm_munmap.__x64_sys_munmap.do_syscall_64
      0.76 ±  8%      +0.2        0.94        perf-profile.calltrace.cycles-pp.zap_pte_range.unmap_page_range.unmap_vmas.unmap_region.__do_munmap
      0.83 ±  8%      +0.2        1.02        perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__munmap
      0.83 ±  8%      +0.2        1.02        perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__munmap
      0.83 ±  8%      +0.2        1.02        perf-profile.calltrace.cycles-pp.__munmap
      0.83 ±  8%      +0.2        1.02        perf-profile.calltrace.cycles-pp.__vm_munmap.__x64_sys_munmap.do_syscall_64.entry_SYSCALL_64_after_hwframe.__munmap
      0.83 ±  8%      +0.2        1.02        perf-profile.calltrace.cycles-pp.__x64_sys_munmap.do_syscall_64.entry_SYSCALL_64_after_hwframe.__munmap
      0.76 ±  8%      +0.2        0.95        perf-profile.calltrace.cycles-pp.unmap_vmas.unmap_region.__do_munmap.__vm_munmap.__x64_sys_munmap
      0.76 ±  8%      +0.2        0.95        perf-profile.calltrace.cycles-pp.unmap_page_range.unmap_vmas.unmap_region.__do_munmap.__vm_munmap
      0.13 ±173%      +0.4        0.55 ±  2%  perf-profile.calltrace.cycles-pp.pagevec_lru_move_fn.__lru_cache_add.alloc_set_pte.finish_fault.do_fault
      7.55 ±  7%      +1.2        8.73 ±  3%  perf-profile.calltrace.cycles-pp.alloc_set_pte.finish_fault.do_fault.__handle_mm_fault.handle_mm_fault
      0.23 ±  8%      -0.0        0.20 ±  2%  perf-profile.children.cycles-pp.mem_cgroup_charge_statistics
      0.12 ± 10%      +0.0        0.15 ±  3%  perf-profile.children.cycles-pp.page_counter_try_charge
      0.19 ±  8%      +0.0        0.22        perf-profile.children.cycles-pp.try_charge
      0.34 ±  8%      +0.0        0.38 ±  2%  perf-profile.children.cycles-pp.__pagevec_lru_add_fn
      0.12 ± 17%      +0.0        0.17 ± 13%  perf-profile.children.cycles-pp.update_load_avg
      0.19 ± 21%      +0.1        0.24 ± 14%  perf-profile.children.cycles-pp.update_cfs_group
      0.00            +0.1        0.07 ±  6%  perf-profile.children.cycles-pp.__mod_node_page_state
      0.48 ±  7%      +0.1        0.55 ±  3%  perf-profile.children.cycles-pp.pagevec_lru_move_fn
      0.04 ± 58%      +0.1        0.14 ±  3%  perf-profile.children.cycles-pp.page_remove_rmap
      0.40 ± 15%      +0.1        0.50 ± 13%  perf-profile.children.cycles-pp.scheduler_tick
      0.36 ± 17%      +0.1        0.46 ± 13%  perf-profile.children.cycles-pp.task_tick_fair
      0.18 ± 22%      +0.1        0.30 ±  7%  perf-profile.children.cycles-pp.start_kernel
      0.82 ±  8%      +0.2        1.01        perf-profile.children.cycles-pp.__do_munmap
      0.94 ±  8%      +0.2        1.13        perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
      0.76 ±  7%      +0.2        0.95        perf-profile.children.cycles-pp.unmap_page_range
      0.76 ±  7%      +0.2        0.95        perf-profile.children.cycles-pp.zap_pte_range
      0.83 ±  8%      +0.2        1.02        perf-profile.children.cycles-pp.__vm_munmap
      0.83 ±  8%      +0.2        1.02        perf-profile.children.cycles-pp.__x64_sys_munmap
      0.94 ±  8%      +0.2        1.13        perf-profile.children.cycles-pp.do_syscall_64
      0.76 ±  7%      +0.2        0.95        perf-profile.children.cycles-pp.unmap_vmas
      0.81 ±  7%      +0.2        1.00        perf-profile.children.cycles-pp.unmap_region
      0.83 ±  8%      +0.2        1.02        perf-profile.children.cycles-pp.__munmap
      0.23 ± 12%      +0.2        0.43 ±  6%  perf-profile.children.cycles-pp.__count_memcg_events
      0.50 ± 13%      +0.2        0.73 ± 37%  perf-profile.children.cycles-pp.tick_sched_timer
      0.46 ± 13%      +0.2        0.69 ± 40%  perf-profile.children.cycles-pp.update_process_times
      0.47 ± 12%      +0.2        0.70 ± 40%  perf-profile.children.cycles-pp.tick_sched_handle
      0.20 ±  6%      +0.3        0.46        perf-profile.children.cycles-pp.__mod_lruvec_state
      0.00            +0.4        0.40        perf-profile.children.cycles-pp.page_add_new_anon_rmap
      7.56 ±  7%      +1.2        8.74 ±  3%  perf-profile.children.cycles-pp.alloc_set_pte
      0.10 ± 21%      +0.0        0.14 ± 13%  perf-profile.self.cycles-pp.update_load_avg
      0.03 ±100%      +0.0        0.07        perf-profile.self.cycles-pp.page_remove_rmap
      0.00            +0.1        0.05        perf-profile.self.cycles-pp.do_user_addr_fault
      0.19 ± 21%      +0.1        0.24 ± 14%  perf-profile.self.cycles-pp.update_cfs_group
      0.00            +0.1        0.07 ±  6%  perf-profile.self.cycles-pp.__mod_node_page_state
      0.04 ± 58%      +0.1        0.11 ±  7%  perf-profile.self.cycles-pp.__mod_lruvec_state
      0.24 ±  7%      +0.1        0.35        perf-profile.self.cycles-pp.zap_pte_range
      0.23 ± 12%      +0.2        0.43 ±  6%  perf-profile.self.cycles-pp.__count_memcg_events
      0.00            +0.2        0.21 ±  3%  perf-profile.self.cycles-pp.page_add_new_anon_rmap
      3065 ± 27%     -42.7%       1757        interrupts.CPU0.NMI:Non-maskable_interrupts
      3065 ± 27%     -42.7%       1757        interrupts.CPU0.PMI:Performance_monitoring_interrupts
    504.00 ± 10%     +46.4%     737.75 ± 10%  interrupts.CPU0.RES:Rescheduling_interrupts
      3905 ± 45%     -53.6%       1813 ± 26%  interrupts.CPU101.NMI:Non-maskable_interrupts
      3905 ± 45%     -53.6%       1813 ± 26%  interrupts.CPU101.PMI:Performance_monitoring_interrupts
      4411 ± 26%     -39.2%       2681 ± 44%  interrupts.CPU102.NMI:Non-maskable_interrupts
      4411 ± 26%     -39.2%       2681 ± 44%  interrupts.CPU102.PMI:Performance_monitoring_interrupts
    240.75 ± 20%     -34.3%     158.25 ± 19%  interrupts.CPU102.RES:Rescheduling_interrupts
      3503 ± 14%     -44.3%       1950 ± 17%  interrupts.CPU103.NMI:Non-maskable_interrupts
      3503 ± 14%     -44.3%       1950 ± 17%  interrupts.CPU103.PMI:Performance_monitoring_interrupts
      3953 ± 26%     -66.6%       1319 ± 33%  interrupts.CPU105.NMI:Non-maskable_interrupts
      3953 ± 26%     -66.6%       1319 ± 33%  interrupts.CPU105.PMI:Performance_monitoring_interrupts
    209.75 ±  9%     -24.4%     158.50 ± 22%  interrupts.CPU105.RES:Rescheduling_interrupts
      4731 ± 17%     -38.4%       2916 ± 42%  interrupts.CPU107.NMI:Non-maskable_interrupts
      4731 ± 17%     -38.4%       2916 ± 42%  interrupts.CPU107.PMI:Performance_monitoring_interrupts
    219.75 ±  6%     -25.5%     163.75 ± 26%  interrupts.CPU109.RES:Rescheduling_interrupts
    344.00 ± 10%     -33.6%     228.50 ± 11%  interrupts.CPU11.RES:Rescheduling_interrupts
      4777 ± 21%     -54.1%       2194 ± 24%  interrupts.CPU110.NMI:Non-maskable_interrupts
      4777 ± 21%     -54.1%       2194 ± 24%  interrupts.CPU110.PMI:Performance_monitoring_interrupts
      4894 ± 26%     -47.6%       2565 ± 40%  interrupts.CPU111.NMI:Non-maskable_interrupts
      4894 ± 26%     -47.6%       2565 ± 40%  interrupts.CPU111.PMI:Performance_monitoring_interrupts
     25831 ± 17%     -44.7%      14290 ±  8%  interrupts.CPU112.CAL:Function_call_interrupts
      5598           -54.1%       2568 ± 55%  interrupts.CPU112.NMI:Non-maskable_interrupts
      5598           -54.1%       2568 ± 55%  interrupts.CPU112.PMI:Performance_monitoring_interrupts
    287.50 ± 22%     -49.5%     145.25 ± 39%  interrupts.CPU112.RES:Rescheduling_interrupts
     23913 ± 18%     -48.9%      12221 ±  9%  interrupts.CPU112.TLB:TLB_shootdowns
     22230 ± 17%     -27.9%      16030 ± 15%  interrupts.CPU113.CAL:Function_call_interrupts
     20295 ± 19%     -30.9%      14014 ± 18%  interrupts.CPU113.TLB:TLB_shootdowns
     20557 ± 12%     -50.0%      10278 ± 19%  interrupts.CPU114.CAL:Function_call_interrupts
    204.00 ± 13%     -29.7%     143.50 ± 23%  interrupts.CPU114.RES:Rescheduling_interrupts
     18589 ± 13%     -56.2%       8139 ± 24%  interrupts.CPU114.TLB:TLB_shootdowns
    246.75 ± 24%     -42.5%     142.00 ±  8%  interrupts.CPU115.RES:Rescheduling_interrupts
     22949 ±  5%     -26.7%      16810 ± 22%  interrupts.CPU116.CAL:Function_call_interrupts
    305.25 ± 30%     -38.9%     186.50 ± 15%  interrupts.CPU116.RES:Rescheduling_interrupts
     21033 ±  6%     -29.5%      14828 ± 26%  interrupts.CPU116.TLB:TLB_shootdowns
      3504 ±  6%     -42.5%       2015 ± 39%  interrupts.CPU118.NMI:Non-maskable_interrupts
      3504 ±  6%     -42.5%       2015 ± 39%  interrupts.CPU118.PMI:Performance_monitoring_interrupts
     21514 ± 21%     -29.5%      15157 ± 26%  interrupts.CPU119.CAL:Function_call_interrupts
     19583 ± 23%     -33.0%      13111 ± 31%  interrupts.CPU119.TLB:TLB_shootdowns
     21379 ± 29%     -30.1%      14946 ±  9%  interrupts.CPU120.CAL:Function_call_interrupts
     19469 ± 32%     -33.8%      12882 ± 11%  interrupts.CPU120.TLB:TLB_shootdowns
     22738 ± 27%     -45.0%      12513 ± 15%  interrupts.CPU121.CAL:Function_call_interrupts
     20913 ± 30%     -50.3%      10388 ± 19%  interrupts.CPU121.TLB:TLB_shootdowns
     22173 ± 28%     -32.9%      14889 ±  3%  interrupts.CPU124.CAL:Function_call_interrupts
     20282 ± 31%     -36.7%      12837 ±  4%  interrupts.CPU124.TLB:TLB_shootdowns
      3720 ± 46%     -38.1%       2301 ± 61%  interrupts.CPU130.NMI:Non-maskable_interrupts
      3720 ± 46%     -38.1%       2301 ± 61%  interrupts.CPU130.PMI:Performance_monitoring_interrupts
      4589 ± 20%     -49.2%       2332 ± 43%  interrupts.CPU140.NMI:Non-maskable_interrupts
      4589 ± 20%     -49.2%       2332 ± 43%  interrupts.CPU140.PMI:Performance_monitoring_interrupts
      4601 ± 19%     -41.3%       2699 ± 55%  interrupts.CPU141.NMI:Non-maskable_interrupts
      4601 ± 19%     -41.3%       2699 ± 55%  interrupts.CPU141.PMI:Performance_monitoring_interrupts
     25068 ± 20%     -52.6%      11894 ± 20%  interrupts.CPU143.CAL:Function_call_interrupts
      4765 ± 19%     -53.9%       2197 ± 29%  interrupts.CPU143.NMI:Non-maskable_interrupts
      4765 ± 19%     -53.9%       2197 ± 29%  interrupts.CPU143.PMI:Performance_monitoring_interrupts
    203.75 ±  8%     -36.2%     130.00 ± 25%  interrupts.CPU143.RES:Rescheduling_interrupts
     23255 ± 22%     -58.0%       9773 ± 25%  interrupts.CPU143.TLB:TLB_shootdowns
      4429 ± 25%     -47.4%       2328 ± 68%  interrupts.CPU144.NMI:Non-maskable_interrupts
      4429 ± 25%     -47.4%       2328 ± 68%  interrupts.CPU144.PMI:Performance_monitoring_interrupts
     26160 ± 16%     -47.7%      13686 ± 16%  interrupts.CPU145.CAL:Function_call_interrupts
      4429 ± 17%     -60.2%       1762        interrupts.CPU145.NMI:Non-maskable_interrupts
      4429 ± 17%     -60.2%       1762        interrupts.CPU145.PMI:Performance_monitoring_interrupts
    225.25 ± 15%     -31.0%     155.50 ± 14%  interrupts.CPU145.RES:Rescheduling_interrupts
     24344 ± 18%     -52.3%      11618 ± 20%  interrupts.CPU145.TLB:TLB_shootdowns
     17912 ± 15%     -26.5%      13163 ± 20%  interrupts.CPU146.CAL:Function_call_interrupts
     15945 ± 17%     -30.3%      11116 ± 24%  interrupts.CPU146.TLB:TLB_shootdowns
    399.25 ± 39%     -53.2%     187.00 ± 34%  interrupts.CPU15.RES:Rescheduling_interrupts
     18871 ± 15%     -28.4%      13508 ± 10%  interrupts.CPU150.CAL:Function_call_interrupts
      3975 ± 31%     -43.2%       2256 ± 63%  interrupts.CPU150.NMI:Non-maskable_interrupts
      3975 ± 31%     -43.2%       2256 ± 63%  interrupts.CPU150.PMI:Performance_monitoring_interrupts
     16909 ± 17%     -32.5%      11415 ± 12%  interrupts.CPU150.TLB:TLB_shootdowns
      4982 ± 13%     -51.8%       2403 ± 63%  interrupts.CPU151.NMI:Non-maskable_interrupts
      4982 ± 13%     -51.8%       2403 ± 63%  interrupts.CPU151.PMI:Performance_monitoring_interrupts
     19960 ± 45%     -39.7%      12032 ± 45%  interrupts.CPU174.TLB:TLB_shootdowns
      3683 ± 31%     -43.2%       2092 ± 15%  interrupts.CPU178.NMI:Non-maskable_interrupts
      3683 ± 31%     -43.2%       2092 ± 15%  interrupts.CPU178.PMI:Performance_monitoring_interrupts
    142.50 ± 10%     +36.7%     194.75 ± 27%  interrupts.CPU179.RES:Rescheduling_interrupts
    206.75 ± 18%     +28.1%     264.75 ±  6%  interrupts.CPU18.RES:Rescheduling_interrupts
    130.25 ±  9%     +49.9%     195.25 ± 40%  interrupts.CPU184.RES:Rescheduling_interrupts
      4909 ± 13%     -46.0%       2649 ± 49%  interrupts.CPU39.NMI:Non-maskable_interrupts
      4909 ± 13%     -46.0%       2649 ± 49%  interrupts.CPU39.PMI:Performance_monitoring_interrupts
    212.25 ±  9%     +37.9%     292.75 ± 15%  interrupts.CPU39.RES:Rescheduling_interrupts
     22686 ± 15%     -34.5%      14862 ± 15%  interrupts.CPU41.CAL:Function_call_interrupts
     20805 ± 16%     -38.4%      12805 ± 18%  interrupts.CPU41.TLB:TLB_shootdowns
     19999 ± 15%     -32.6%      13482 ± 38%  interrupts.CPU43.CAL:Function_call_interrupts
     18121 ± 17%     -37.1%      11392 ± 47%  interrupts.CPU43.TLB:TLB_shootdowns
    205.75 ± 12%    +436.3%       1103 ±133%  interrupts.CPU46.RES:Rescheduling_interrupts
     15151 ± 19%     +29.3%      19597 ± 29%  interrupts.CPU47.CAL:Function_call_interrupts
    153.25 ± 18%    +307.5%     624.50 ±109%  interrupts.CPU47.RES:Rescheduling_interrupts
     13170 ± 23%     +34.0%      17651 ± 32%  interrupts.CPU47.TLB:TLB_shootdowns
    142.50 ±  7%     +67.4%     238.50 ± 18%  interrupts.CPU49.RES:Rescheduling_interrupts
      4583 ± 21%     -39.5%       2771 ± 55%  interrupts.CPU56.NMI:Non-maskable_interrupts
      4583 ± 21%     -39.5%       2771 ± 55%  interrupts.CPU56.PMI:Performance_monitoring_interrupts
     21903 ± 31%     -35.7%      14081 ± 25%  interrupts.CPU58.CAL:Function_call_interrupts
    227.75 ± 11%     -28.5%     162.75 ± 16%  interrupts.CPU58.RES:Rescheduling_interrupts
     19981 ± 34%     -39.8%      12031 ± 30%  interrupts.CPU58.TLB:TLB_shootdowns
     22651 ± 25%     -29.7%      15924 ± 25%  interrupts.CPU59.CAL:Function_call_interrupts
     20700 ± 28%     -32.8%      13915 ± 30%  interrupts.CPU59.TLB:TLB_shootdowns
     21110 ± 21%     -40.9%      12473 ± 17%  interrupts.CPU61.CAL:Function_call_interrupts
    219.50 ± 23%     -40.7%     130.25 ± 23%  interrupts.CPU61.RES:Rescheduling_interrupts
     19180 ± 23%     -45.9%      10375 ± 21%  interrupts.CPU61.TLB:TLB_shootdowns
     20792 ± 22%     -22.7%      16082 ± 27%  interrupts.CPU62.CAL:Function_call_interrupts
      3800 ± 46%     -38.6%       2332 ± 66%  interrupts.CPU62.NMI:Non-maskable_interrupts
      3800 ± 46%     -38.6%       2332 ± 66%  interrupts.CPU62.PMI:Performance_monitoring_interrupts
     18881 ± 25%     -25.5%      14063 ± 31%  interrupts.CPU62.TLB:TLB_shootdowns
      4375 ± 30%     -50.4%       2171 ± 76%  interrupts.CPU63.NMI:Non-maskable_interrupts
      4375 ± 30%     -50.4%       2171 ± 76%  interrupts.CPU63.PMI:Performance_monitoring_interrupts
     21452 ± 15%     -45.3%      11737 ± 21%  interrupts.CPU66.CAL:Function_call_interrupts
     19571 ± 17%     -50.9%       9613 ± 26%  interrupts.CPU66.TLB:TLB_shootdowns
     22818 ± 26%     -34.2%      15006 ± 15%  interrupts.CPU68.CAL:Function_call_interrupts
     20956 ± 29%     -38.0%      12989 ± 18%  interrupts.CPU68.TLB:TLB_shootdowns
      2585 ± 26%     -32.0%       1757        interrupts.CPU69.NMI:Non-maskable_interrupts
      2585 ± 26%     -32.0%       1757        interrupts.CPU69.PMI:Performance_monitoring_interrupts
     22490 ± 17%     -41.3%      13193 ± 28%  interrupts.CPU70.CAL:Function_call_interrupts
    210.00 ± 10%     -31.9%     143.00 ± 19%  interrupts.CPU70.RES:Rescheduling_interrupts
     20594 ± 19%     -45.9%      11141 ± 34%  interrupts.CPU70.TLB:TLB_shootdowns
      2763 ± 28%     -28.8%       1967 ± 16%  interrupts.CPU71.NMI:Non-maskable_interrupts
      2763 ± 28%     -28.8%       1967 ± 16%  interrupts.CPU71.PMI:Performance_monitoring_interrupts
     18770 ± 23%     -39.5%      11362 ± 19%  interrupts.CPU72.CAL:Function_call_interrupts
     17416 ± 29%     -45.3%       9531 ± 19%  interrupts.CPU72.TLB:TLB_shootdowns
     19106 ± 26%     -34.2%      12580 ± 20%  interrupts.CPU74.CAL:Function_call_interrupts
     17297 ± 30%     -39.1%      10537 ± 24%  interrupts.CPU74.TLB:TLB_shootdowns
      4060 ± 26%     -46.5%       2174 ± 42%  interrupts.CPU79.NMI:Non-maskable_interrupts
      4060 ± 26%     -46.5%       2174 ± 42%  interrupts.CPU79.PMI:Performance_monitoring_interrupts
      4761 ±  3%     -53.2%       2226 ± 36%  interrupts.CPU8.NMI:Non-maskable_interrupts
      4761 ±  3%     -53.2%       2226 ± 36%  interrupts.CPU8.PMI:Performance_monitoring_interrupts
     19922 ± 16%     -30.0%      13943 ± 25%  interrupts.CPU80.CAL:Function_call_interrupts
     17990 ± 18%     -33.8%      11902 ± 29%  interrupts.CPU80.TLB:TLB_shootdowns
     24340 ± 25%     -46.3%      13081 ± 37%  interrupts.CPU83.CAL:Function_call_interrupts
     22584 ± 27%     -51.1%      11051 ± 45%  interrupts.CPU83.TLB:TLB_shootdowns
     26501 ± 19%     -50.5%      13116 ± 40%  interrupts.CPU88.CAL:Function_call_interrupts
      5063 ± 15%     -45.2%       2773 ± 48%  interrupts.CPU88.NMI:Non-maskable_interrupts
      5063 ± 15%     -45.2%       2773 ± 48%  interrupts.CPU88.PMI:Performance_monitoring_interrupts
    218.00 ± 10%     -37.2%     137.00 ± 28%  interrupts.CPU88.RES:Rescheduling_interrupts
     24693 ± 21%     -55.2%      11062 ± 49%  interrupts.CPU88.TLB:TLB_shootdowns
     19304 ± 28%     -35.9%      12371 ± 14%  interrupts.CPU92.CAL:Function_call_interrupts
     17361 ± 31%     -40.4%      10344 ± 18%  interrupts.CPU92.TLB:TLB_shootdowns
      5646           -53.3%       2639 ± 57%  interrupts.CPU95.NMI:Non-maskable_interrupts
      5646           -53.3%       2639 ± 57%  interrupts.CPU95.PMI:Performance_monitoring_interrupts
      4544 ± 14%     -51.9%       2185 ± 12%  interrupts.CPU97.NMI:Non-maskable_interrupts
      4544 ± 14%     -51.9%       2185 ± 12%  interrupts.CPU97.PMI:Performance_monitoring_interrupts
    271.75 ± 18%     -28.9%     193.25 ± 30%  interrupts.CPU98.RES:Rescheduling_interrupts
    721411 ±  8%     -20.0%     577152 ±  6%  interrupts.NMI:Non-maskable_interrupts
    721411 ±  8%     -20.0%     577152 ±  6%  interrupts.PMI:Performance_monitoring_interrupts


                                                                                
                            will-it-scale.per_thread_ops                        
                                                                                
  25500 +-------------------------------------------------------------------+   
        |                                                      +            |   
  25000 |-+                                                   : :           |   
  24500 |-+                       +                           : :       +   |   
        |         .+.   .+.       ::                       +.+   :     + +  |   
  24000 |-+. .+. +   +.+   +.   .+ :  +. .+.    +. +. .+. +      +.+ .+   +.|   
  23500 |++ +   +            +.+    :+  +   +. +  +  +   +          +       |   
        |                           +         +                             |   
  23000 |-+                                                                 |   
  22500 |-+                                                                 |   
        |        O                                                          |   
  22000 |-O O O O        O   O   OO O O O       O O  O                      |   
  21500 |-+        O O     O   O          O        O                        |   
        |              O                    O O                             |   
  21000 +-------------------------------------------------------------------+   
                                                                                
                                                                                                                                                                
                                will-it-scale.workload                          
                                                                                
  2.45e+06 +----------------------------------------------------------------+   
           |                                                   +            |   
   2.4e+06 |-+                                                 ::           |   
  2.35e+06 |-+                     .+                         : :       +   |   
           |         .+. +.+.     +  :                      +.+  :      :+  |   
   2.3e+06 |-+.++. .+   +    +.   :  :  +.+.+    +.+.+ .+. +     +.+.+.+  +.|   
  2.25e+06 |++    +            +.+    :+     +. +     +   +                 |   
           |                          +        +                            |   
   2.2e+06 |-+                                                              |   
  2.15e+06 |-+                                                              |   
           |   O    O          O    O   O O                                 |   
   2.1e+06 |-O  O O        O O   OO   O          O O  O                     |   
  2.05e+06 |-+        O OO                  OO       O                      |   
           |                                   O                            |   
     2e+06 +----------------------------------------------------------------+   
                                                                                
                                                                                
[*] 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,
Oliver Sang


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