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Date:   Tue, 12 Jan 2021 22:10:45 +0800
From:   kernel test robot <oliver.sang@...el.com>
To:     Sami Tolvanen <samitolvanen@...gle.com>
Cc:     Kees Cook <keescook@...omium.org>,
        Bjorn Helgaas <bhelgaas@...gle.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: [PCI]  dc83615370:  will-it-scale.per_process_ops -1.2% regression


Greeting,

FYI, we noticed a -1.2% regression of will-it-scale.per_process_ops due to commit:


commit: dc83615370e7ebcb181a21a8ad13a77c278ab81c ("PCI: Fix PREL32 relocations for LTO")
https://git.kernel.org/cgit/linux/kernel/git/kees/linux.git for-next/kspp


in testcase: will-it-scale
on test machine: 104 threads Skylake with 192G memory
with following parameters:

	nr_task: 50%
	mode: process
	test: mmap1
	cpufreq_governor: performance
	ucode: 0x2006a08

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

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

+------------------+-------------------------------------------------------------------+
| testcase: change | reaim: reaim.jobs_per_min -1.3% regression                        |
| test machine     | 16 threads Intel(R) Xeon(R) E-2278G CPU @ 3.40GHz with 32G memory |
| test parameters  | cpufreq_governor=performance                                      |
|                  | nr_task=100%                                                      |
|                  | runtime=300s                                                      |
|                  | test=new_dbase                                                    |
|                  | ucode=0xde                                                        |
+------------------+-------------------------------------------------------------------+


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/process/50%/debian-10.4-x86_64-20200603.cgz/lkp-skl-fpga01/mmap1/will-it-scale/0x2006a08

commit: 
  a51d9615ff ("init: lto: fix PREL32 relocations")
  dc83615370 ("PCI: Fix PREL32 relocations for LTO")

a51d9615ffb5559c dc83615370e7ebcb181a21a8ad1 
---------------- --------------------------- 
         %stddev     %change         %stddev
             \          |                \  
  21214909            -1.2%   20965820        will-it-scale.52.processes
    407978            -1.2%     403188        will-it-scale.per_process_ops
  21214909            -1.2%   20965820        will-it-scale.workload
    220218 ±139%   +4481.9%   10090202 ± 57%  cpuidle.C6.usage
      3713 ±  5%      -3.6%       3578 ±  5%  sched_debug.cpu.nr_switches.avg
    356911 ±  6%      -9.6%     322794 ±  2%  numa-numastat.node0.local_node
     45147 ± 51%     +99.7%      90173 ±  6%  numa-numastat.node0.other_node
     48643 ± 47%     -92.7%       3532 ±164%  numa-numastat.node1.other_node
     18557            -1.3%      18311        proc-vmstat.nr_kernel_stack
      8073 ± 61%     +93.2%      15595 ± 23%  proc-vmstat.numa_hint_faults
    958803            +0.9%     967277        proc-vmstat.pgfault
      0.03 ±  3%     +16.8%       0.04 ±  8%  perf-sched.wait_and_delay.avg.ms.preempt_schedule_common._cond_resched.unmap_page_range.unmap_vmas.unmap_region
    684.53 ±  2%     -15.3%     579.57 ± 10%  perf-sched.wait_and_delay.avg.ms.schedule_hrtimeout_range_clock.ep_poll.do_epoll_wait.__x64_sys_epoll_wait
      0.13 ± 28%    +218.0%       0.42 ± 68%  perf-sched.wait_and_delay.max.ms.preempt_schedule_common._cond_resched.unmap_page_range.unmap_vmas.unmap_region
      0.03 ±  3%     +16.8%       0.04 ±  8%  perf-sched.wait_time.avg.ms.preempt_schedule_common._cond_resched.unmap_page_range.unmap_vmas.unmap_region
    684.52 ±  2%     -15.3%     579.56 ± 10%  perf-sched.wait_time.avg.ms.schedule_hrtimeout_range_clock.ep_poll.do_epoll_wait.__x64_sys_epoll_wait
      0.13 ± 28%    +218.0%       0.42 ± 68%  perf-sched.wait_time.max.ms.preempt_schedule_common._cond_resched.unmap_page_range.unmap_vmas.unmap_region
      1310 ±  4%      -9.7%       1183 ±  4%  slabinfo.dmaengine-unmap-16.active_objs
      1310 ±  4%      -9.7%       1183 ±  4%  slabinfo.dmaengine-unmap-16.num_objs
     35004 ±  2%      -8.2%      32147 ±  6%  slabinfo.vm_area_struct.active_objs
      1752 ±  2%      -8.1%       1609 ±  6%  slabinfo.vm_area_struct.active_slabs
     35050 ±  2%      -8.1%      32199 ±  6%  slabinfo.vm_area_struct.num_objs
      1752 ±  2%      -8.1%       1609 ±  6%  slabinfo.vm_area_struct.num_slabs
      2898 ± 14%     -27.6%       2099 ±  6%  numa-meminfo.node0.Active
      2858 ± 14%     -33.0%       1915 ±  7%  numa-meminfo.node0.Active(anon)
     90099 ± 38%     +66.5%     150033 ±  5%  numa-meminfo.node0.AnonPages
    158948 ± 62%     +93.8%     308046 ± 11%  numa-meminfo.node0.AnonPages.max
     96670 ± 32%     +60.2%     154892 ±  4%  numa-meminfo.node0.Inactive
     96637 ± 32%     +60.1%     154748 ±  4%  numa-meminfo.node0.Inactive(anon)
    179842 ± 17%     -33.2%     120168 ±  5%  numa-meminfo.node1.Inactive
    179727 ± 17%     -33.1%     120164 ±  5%  numa-meminfo.node1.Inactive(anon)
      3840 ± 10%     -21.5%       3015 ± 11%  numa-meminfo.node1.PageTables
    714.50 ± 14%     -33.0%     478.75 ±  7%  numa-vmstat.node0.nr_active_anon
     22517 ± 38%     +66.5%      37498 ±  5%  numa-vmstat.node0.nr_anon_pages
     24152 ± 32%     +60.1%      38677 ±  4%  numa-vmstat.node0.nr_inactive_anon
    714.50 ± 14%     -33.0%     478.75 ±  7%  numa-vmstat.node0.nr_zone_active_anon
     24152 ± 32%     +60.1%      38677 ±  4%  numa-vmstat.node0.nr_zone_inactive_anon
    961010 ±  9%     +10.8%    1064969 ±  5%  numa-vmstat.node0.numa_hit
     44968 ± 17%     -33.3%      29999 ±  5%  numa-vmstat.node1.nr_inactive_anon
    225.50 ± 11%     -80.2%      44.75 ±173%  numa-vmstat.node1.nr_mlock
    960.75 ± 10%     -21.6%     753.50 ± 11%  numa-vmstat.node1.nr_page_table_pages
     44968 ± 17%     -33.3%      29999 ±  5%  numa-vmstat.node1.nr_zone_inactive_anon
     14012 ± 13%     +30.4%      18268 ±  8%  softirqs.CPU16.RCU
     30796 ± 31%     -59.4%      12509 ± 37%  softirqs.CPU16.SCHED
     12512 ±  7%     +47.9%      18510 ±  6%  softirqs.CPU2.RCU
     32471 ± 18%     -80.2%       6425 ± 20%  softirqs.CPU2.SCHED
     22103 ± 21%     +62.8%      35973 ±  9%  softirqs.CPU22.SCHED
     25696 ± 55%     -65.4%       8900 ± 58%  softirqs.CPU34.SCHED
     15659 ±  6%     +21.5%      19026 ±  6%  softirqs.CPU38.RCU
     22098 ± 31%     -61.2%       8571 ± 44%  softirqs.CPU38.SCHED
     17434 ± 13%     -30.2%      12160 ±  5%  softirqs.CPU54.RCU
      9976 ± 45%    +274.9%      37404 ±  4%  softirqs.CPU54.SCHED
     39372 ±  3%     -26.1%      29080 ± 35%  softirqs.CPU56.SCHED
     14032 ± 66%    +129.6%      32221 ± 15%  softirqs.CPU68.SCHED
     14559 ±  4%     +14.9%      16722 ±  7%  softirqs.CPU74.RCU
     23526 ± 14%     -63.9%       8492 ± 35%  softirqs.CPU74.SCHED
     14648 ±  6%     +20.8%      17695 ± 12%  softirqs.CPU79.RCU
     22648 ± 34%     +57.2%      35591 ± 12%  softirqs.CPU90.SCHED
      1.10 ± 11%      +0.2        1.29 ±  9%  perf-profile.calltrace.cycles-pp.perf_event_mmap_output.perf_iterate_sb.perf_event_mmap.mmap_region.do_mmap
      2.30 ± 10%      +0.3        2.62 ±  9%  perf-profile.calltrace.cycles-pp.perf_iterate_sb.perf_event_mmap.mmap_region.do_mmap.vm_mmap_pgoff
      5.25 ± 10%      +1.2        6.48 ±  9%  perf-profile.calltrace.cycles-pp.___might_sleep.unmap_page_range.unmap_vmas.unmap_region.__do_munmap
     14.56 ± 10%      +2.2       16.79 ±  9%  perf-profile.calltrace.cycles-pp.unmap_page_range.unmap_vmas.unmap_region.__do_munmap.__vm_munmap
     14.94 ± 10%      +2.3       17.21 ±  9%  perf-profile.calltrace.cycles-pp.unmap_vmas.unmap_region.__do_munmap.__vm_munmap.__x64_sys_munmap
     20.53 ± 10%      +2.9       23.44 ±  9%  perf-profile.calltrace.cycles-pp.unmap_region.__do_munmap.__vm_munmap.__x64_sys_munmap.do_syscall_64
     24.89 ± 10%      +3.4       28.27 ±  9%  perf-profile.calltrace.cycles-pp.__do_munmap.__vm_munmap.__x64_sys_munmap.do_syscall_64.entry_SYSCALL_64_after_hwframe
     25.84 ± 10%      +3.5       29.32 ±  9%  perf-profile.calltrace.cycles-pp.__vm_munmap.__x64_sys_munmap.do_syscall_64.entry_SYSCALL_64_after_hwframe.__munmap
     26.23 ± 10%      +3.5       29.76 ±  9%  perf-profile.calltrace.cycles-pp.__x64_sys_munmap.do_syscall_64.entry_SYSCALL_64_after_hwframe.__munmap
     26.40 ± 10%      +3.5       29.94 ±  9%  perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__munmap
     31.31 ± 10%      +4.1       35.36 ±  9%  perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__munmap
     36.81 ± 10%      +4.7       41.52 ±  9%  perf-profile.calltrace.cycles-pp.__munmap
      0.22 ±  9%      +0.0        0.27 ±  8%  perf-profile.children.cycles-pp.free_pgtables
      1.14 ± 12%      +0.2        1.33 ±  9%  perf-profile.children.cycles-pp.perf_event_mmap_output
      2.34 ± 10%      +0.3        2.66 ±  9%  perf-profile.children.cycles-pp.perf_iterate_sb
      5.72 ± 10%      +1.3        7.00 ±  9%  perf-profile.children.cycles-pp.___might_sleep
     14.58 ± 10%      +2.2       16.80 ±  9%  perf-profile.children.cycles-pp.unmap_page_range
     14.96 ± 10%      +2.3       17.23 ±  9%  perf-profile.children.cycles-pp.unmap_vmas
     20.57 ± 10%      +2.9       23.48 ±  9%  perf-profile.children.cycles-pp.unmap_region
     24.93 ± 10%      +3.4       28.31 ±  9%  perf-profile.children.cycles-pp.__do_munmap
     25.85 ± 10%      +3.5       29.33 ±  9%  perf-profile.children.cycles-pp.__vm_munmap
     26.25 ± 10%      +3.5       29.78 ±  9%  perf-profile.children.cycles-pp.__x64_sys_munmap
     37.22 ± 10%      +4.8       41.98 ±  9%  perf-profile.children.cycles-pp.__munmap
     40.09 ± 10%      +5.1       45.21 ±  9%  perf-profile.children.cycles-pp.do_syscall_64
      0.09 ± 11%      +0.0        0.12 ± 10%  perf-profile.self.cycles-pp.unlink_anon_vmas
      0.46 ± 11%      +0.1        0.53 ±  9%  perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe
      1.09 ± 11%      +0.2        1.28 ±  9%  perf-profile.self.cycles-pp.perf_event_mmap_output
      5.64 ± 10%      +1.3        6.91 ±  9%  perf-profile.self.cycles-pp.___might_sleep
 4.912e+10            -1.2%  4.855e+10        perf-stat.i.branch-instructions
 2.135e+08            -1.1%  2.111e+08        perf-stat.i.branch-misses
   6788478 ± 11%     -10.0%    6109308 ±  2%  perf-stat.i.cache-references
      0.71            +1.3%       0.72        perf-stat.i.cpi
  42307178            -1.1%   41837456        perf-stat.i.dTLB-load-misses
 5.014e+10            -1.1%  4.958e+10        perf-stat.i.dTLB-loads
     37290            -1.9%      36573        perf-stat.i.dTLB-store-misses
 2.265e+10            -1.2%  2.239e+10        perf-stat.i.dTLB-stores
  43306433            +4.1%   45095720        perf-stat.i.iTLB-load-misses
 2.034e+11            -1.2%  2.011e+11        perf-stat.i.instructions
      4751            -5.5%       4489        perf-stat.i.instructions-per-iTLB-miss
      1.41            -1.3%       1.40        perf-stat.i.ipc
      1172            -1.1%       1159        perf-stat.i.metric.M/sec
      7957 ±  2%      +9.0%       8672 ±  2%  perf-stat.i.node-stores
      0.71            +1.3%       0.72        perf-stat.overall.cpi
      4698            -5.1%       4460        perf-stat.overall.instructions-per-iTLB-miss
      1.41            -1.3%       1.40        perf-stat.overall.ipc
 4.895e+10            -1.2%  4.838e+10        perf-stat.ps.branch-instructions
 2.128e+08            -1.1%  2.105e+08        perf-stat.ps.branch-misses
   6786238 ± 11%      -9.8%    6121425 ±  2%  perf-stat.ps.cache-references
  42160053            -1.1%   41690240        perf-stat.ps.dTLB-load-misses
 4.996e+10            -1.1%  4.941e+10        perf-stat.ps.dTLB-loads
     37208            -1.8%      36524        perf-stat.ps.dTLB-store-misses
 2.258e+10            -1.1%  2.232e+10        perf-stat.ps.dTLB-stores
  43155095            +4.1%   44932048        perf-stat.ps.iTLB-load-misses
 2.027e+11            -1.2%  2.004e+11        perf-stat.ps.instructions
      3046            +0.7%       3069        perf-stat.ps.minor-faults
      8008 ±  2%      +9.1%       8735 ±  2%  perf-stat.ps.node-stores
      3047            +0.7%       3069        perf-stat.ps.page-faults
 6.123e+13            -1.1%  6.055e+13        perf-stat.total.instructions
      1321 ±144%    +378.3%       6319 ± 86%  interrupts.40:PCI-MSI.67633155-edge.eth0-TxRx-2
    833.25 ±  3%     -12.8%     726.25 ±  8%  interrupts.CPU101.CAL:Function_call_interrupts
    113.25 ± 80%     -47.7%      59.25 ±120%  interrupts.CPU103.TLB:TLB_shootdowns
    768.00 ±  5%     +34.8%       1035 ± 25%  interrupts.CPU15.CAL:Function_call_interrupts
    120.00 ± 62%     +96.0%     235.25 ± 15%  interrupts.CPU16.RES:Rescheduling_interrupts
    876.75 ±  8%     -14.7%     748.00 ±  5%  interrupts.CPU2.CAL:Function_call_interrupts
     79.75 ± 58%    +259.2%     286.50 ±  4%  interrupts.CPU2.RES:Rescheduling_interrupts
      6449 ± 30%     -61.2%       2505 ± 24%  interrupts.CPU21.NMI:Non-maskable_interrupts
      6449 ± 30%     -61.2%       2505 ± 24%  interrupts.CPU21.PMI:Performance_monitoring_interrupts
    793.25 ±  6%     +11.3%     883.25 ±  3%  interrupts.CPU22.CAL:Function_call_interrupts
      5472 ± 17%     -41.2%       3217 ± 48%  interrupts.CPU22.NMI:Non-maskable_interrupts
      5472 ± 17%     -41.2%       3217 ± 48%  interrupts.CPU22.PMI:Performance_monitoring_interrupts
    179.25 ± 12%     -69.5%      54.75 ± 47%  interrupts.CPU22.RES:Rescheduling_interrupts
    222.00 ± 23%     -45.3%     121.50 ± 27%  interrupts.CPU27.RES:Rescheduling_interrupts
      6433 ± 13%     -41.0%       3794 ± 30%  interrupts.CPU29.NMI:Non-maskable_interrupts
      6433 ± 13%     -41.0%       3794 ± 30%  interrupts.CPU29.PMI:Performance_monitoring_interrupts
      1321 ±144%    +378.3%       6319 ± 86%  interrupts.CPU32.40:PCI-MSI.67633155-edge.eth0-TxRx-2
     59.75 ±123%     -88.3%       7.00 ±124%  interrupts.CPU34.TLB:TLB_shootdowns
    299.00 ± 11%     -25.8%     221.75 ± 15%  interrupts.CPU37.RES:Rescheduling_interrupts
      5375 ± 29%     +34.6%       7232 ± 10%  interrupts.CPU38.NMI:Non-maskable_interrupts
      5375 ± 29%     +34.6%       7232 ± 10%  interrupts.CPU38.PMI:Performance_monitoring_interrupts
    173.75 ± 24%     +61.2%     280.00 ±  6%  interrupts.CPU38.RES:Rescheduling_interrupts
    746.00 ±  4%     +32.5%     988.25 ± 20%  interrupts.CPU4.CAL:Function_call_interrupts
      7490 ±  6%     -29.2%       5304 ± 18%  interrupts.CPU51.NMI:Non-maskable_interrupts
      7490 ±  6%     -29.2%       5304 ± 18%  interrupts.CPU51.PMI:Performance_monitoring_interrupts
    746.50 ±  4%     +63.7%       1222 ± 41%  interrupts.CPU54.CAL:Function_call_interrupts
    246.50 ± 18%     -82.7%      42.75 ± 32%  interrupts.CPU54.RES:Rescheduling_interrupts
      6665 ± 14%     -48.3%       3444 ± 29%  interrupts.CPU62.NMI:Non-maskable_interrupts
      6665 ± 14%     -48.3%       3444 ± 29%  interrupts.CPU62.PMI:Performance_monitoring_interrupts
      7141 ± 11%     -39.8%       4298 ± 35%  interrupts.CPU63.NMI:Non-maskable_interrupts
      7141 ± 11%     -39.8%       4298 ± 35%  interrupts.CPU63.PMI:Performance_monitoring_interrupts
    746.00 ±  2%     +19.3%     889.75 ± 10%  interrupts.CPU68.CAL:Function_call_interrupts
    224.25 ± 33%     -64.1%      80.50 ± 49%  interrupts.CPU68.RES:Rescheduling_interrupts
    160.00 ± 25%     +67.7%     268.25 ±  7%  interrupts.CPU74.RES:Rescheduling_interrupts
      6663 ± 14%     -53.8%       3076 ± 11%  interrupts.CPU77.NMI:Non-maskable_interrupts
      6663 ± 14%     -53.8%       3076 ± 11%  interrupts.CPU77.PMI:Performance_monitoring_interrupts
      6876 ± 14%     -53.1%       3222 ± 48%  interrupts.CPU80.NMI:Non-maskable_interrupts
      6876 ± 14%     -53.1%       3222 ± 48%  interrupts.CPU80.PMI:Performance_monitoring_interrupts
      6347 ± 14%     -44.8%       3504 ± 11%  interrupts.CPU83.NMI:Non-maskable_interrupts
      6347 ± 14%     -44.8%       3504 ± 11%  interrupts.CPU83.PMI:Performance_monitoring_interrupts
    195.50 ± 49%     -59.7%      78.75 ± 67%  interrupts.CPU86.RES:Rescheduling_interrupts
      7498 ±  8%     -43.5%       4236 ± 46%  interrupts.CPU90.NMI:Non-maskable_interrupts
      7498 ±  8%     -43.5%       4236 ± 46%  interrupts.CPU90.PMI:Performance_monitoring_interrupts
    177.75 ± 27%     -64.8%      62.50 ± 48%  interrupts.CPU90.RES:Rescheduling_interrupts
      1078 ± 10%     -23.7%     823.00 ± 12%  interrupts.CPU96.CAL:Function_call_interrupts


                                                                                
                              will-it-scale.52.processes                        
                                                                                
  2.14e+07 +----------------------------------------------------------------+   
           |.+. .+ :        +  +.+.               +.+. .+   +.+. .+  :      |   
  2.13e+07 |-+ +    :    +.+       +             +    +         +    :      |   
           |        :   :           + .+.+..+. .+                     +.    |   
  2.12e+07 |-+       :  :            +        +                         +.+.|   
           |         +.+                                                    |   
  2.11e+07 |-+                                                              |   
           |                                                                |   
   2.1e+07 |-+                   O O     O  O O   O     O                   |   
           |                 O O     O O        O   O O   O O               |   
  2.09e+07 |-+         O                                                    |   
           |         O   O                                                  |   
  2.08e+07 |-O O O O       O                                                |   
           |                                                                |   
  2.07e+07 +----------------------------------------------------------------+   
                                                                                
                                                                                                                                                                
                            will-it-scale.per_process_ops                       
                                                                                
  412000 +------------------------------------------------------------------+   
         |.+. .+.+         .+.+.+                +.+. .+.+.+.+.  .+.+       |   
  410000 |-+ +    :     +.+      +              :    +         +.    :      |   
         |        :    :          +.            :                    :      |   
  408000 |-+       :   :            +.+.+..+.+.+                      +.+.+.|   
         |         +..+                                                     |   
  406000 |-+                                                                |   
         |                                                                  |   
  404000 |-+                    O O     O  O           O                    |   
         |                  O O     O O      O O O O O   O O                |   
  402000 |-+          O                                                     |   
         |         O    O                                                   |   
  400000 |-O O O O        O                                                 |   
         |                                                                  |   
  398000 +------------------------------------------------------------------+   
                                                                                
                                                                                                                                                                
                                will-it-scale.workload                          
                                                                                
  2.14e+07 +----------------------------------------------------------------+   
           |.+. .+ :        +  +.+.               +.+. .+   +.+. .+  :      |   
  2.13e+07 |-+ +    :    +.+       +             +    +         +    :      |   
           |        :   :           + .+.+..+. .+                     +.    |   
  2.12e+07 |-+       :  :            +        +                         +.+.|   
           |         +.+                                                    |   
  2.11e+07 |-+                                                              |   
           |                                                                |   
   2.1e+07 |-+                   O O     O  O O   O     O                   |   
           |                 O O     O O        O   O O   O O               |   
  2.09e+07 |-+         O                                                    |   
           |         O   O                                                  |   
  2.08e+07 |-O O O O       O                                                |   
           |                                                                |   
  2.07e+07 +----------------------------------------------------------------+   
                                                                                
                                                                                
[*] bisect-good sample
[O] bisect-bad  sample

***************************************************************************************************
lkp-cfl-e1: 16 threads Intel(R) Xeon(R) E-2278G CPU @ 3.40GHz with 32G memory
=========================================================================================
compiler/cpufreq_governor/kconfig/nr_task/rootfs/runtime/tbox_group/test/testcase/ucode:
  gcc-9/performance/x86_64-rhel-8.3/100%/debian-10.4-x86_64-20200603.cgz/300s/lkp-cfl-e1/new_dbase/reaim/0xde

commit: 
  a51d9615ff ("init: lto: fix PREL32 relocations")
  dc83615370 ("PCI: Fix PREL32 relocations for LTO")

a51d9615ffb5559c dc83615370e7ebcb181a21a8ad1 
---------------- --------------------------- 
       fail:runs  %reproduction    fail:runs
           |             |             |    
          1:4           -1%           1:4     perf-profile.children.cycles-pp.error_entry
          0:4           -1%           0:4     perf-profile.self.cycles-pp.error_entry
         %stddev     %change         %stddev
             \          |                \  
      0.51            +1.0%       0.52        reaim.child_systime
    243564            -1.3%     240371        reaim.jobs_per_min
     15222            -1.3%      15023        reaim.jobs_per_min_child
      0.41            +1.4%       0.41        reaim.parent_time
      2.80            +9.4%       3.06 ±  3%  reaim.std_dev_percent
      0.01            +7.0%       0.01 ±  3%  reaim.std_dev_time
   2243615            -1.3%    2215564        proc-vmstat.pgreuse
      0.64            +0.1        0.77 ±  7%  mpstat.cpu.all.irq%
      0.05 ±  2%      +0.0        0.07 ±  5%  mpstat.cpu.all.soft%
      2499 ±  3%      +7.7%       2690 ±  3%  vmstat.system.cs
     23157 ± 19%     +39.1%      32211        vmstat.system.in
    171129 ± 32%     -42.0%      99233 ± 50%  cpuidle.C10.time
  60165674 ± 24%    +520.9%  3.736e+08 ± 56%  cpuidle.C1E.time
    427407 ± 20%    +157.8%    1101739 ± 44%  cpuidle.C1E.usage
  65948995 ± 60%   +2121.4%  1.465e+09 ± 17%  cpuidle.C3.time
    844032 ± 79%    +755.1%    7216904 ± 17%  cpuidle.C3.usage
 3.824e+09 ±  4%     -45.1%    2.1e+09 ± 18%  cpuidle.C6.time
   1141333 ±141%     -88.1%     135266 ±  4%  cpuidle.POLL.time
     98165 ±  3%      -8.8%      89487 ±  3%  sched_debug.cfs_rq:/.load.avg
      2.33 ± 37%    +301.8%       9.38 ± 39%  sched_debug.cfs_rq:/.load_avg.min
    170.62 ± 70%     +60.0%     273.07 ± 24%  sched_debug.cfs_rq:/.removed.load_avg.max
    226.69 ± 10%     +54.1%     349.30 ± 21%  sched_debug.cfs_rq:/.runnable_avg.avg
    218.71 ± 11%     +55.3%     339.67 ± 22%  sched_debug.cfs_rq:/.util_avg.avg
     34.08 ± 43%    +234.2%     113.92 ± 41%  sched_debug.cfs_rq:/.util_est_enqueued.avg
      0.26 ± 43%    +100.8%       0.52 ± 19%  sched_debug.cpu.clock.stddev
     18.46 ± 33%     -45.9%       9.98 ± 25%  sched_debug.cpu.nr_uninterruptible.max
    -17.42           -51.5%      -8.45        sched_debug.cpu.nr_uninterruptible.min
      9.71 ± 40%     -45.9%       5.25 ± 11%  sched_debug.cpu.nr_uninterruptible.stddev
    916.75 ±127%    +709.3%       7419 ± 96%  interrupts.135:IR-PCI-MSI.2097156-edge.eth1-TxRx-3
    435045 ± 19%     +38.7%     603449        interrupts.CPU0.LOC:Local_timer_interrupts
    435308 ± 19%     +38.5%     603037        interrupts.CPU1.LOC:Local_timer_interrupts
    434929 ± 19%     +38.8%     603749        interrupts.CPU10.LOC:Local_timer_interrupts
    434479 ± 19%     +39.0%     603791        interrupts.CPU11.LOC:Local_timer_interrupts
    434621 ± 19%     +39.0%     604229        interrupts.CPU12.LOC:Local_timer_interrupts
    434722 ± 19%     +39.1%     604482        interrupts.CPU13.LOC:Local_timer_interrupts
    434385 ± 19%     +39.2%     604524        interrupts.CPU14.LOC:Local_timer_interrupts
    434173 ± 19%     +39.3%     604697        interrupts.CPU15.LOC:Local_timer_interrupts
    434690 ± 19%     +38.9%     603755        interrupts.CPU2.LOC:Local_timer_interrupts
    433816 ± 19%     +39.3%     604290        interrupts.CPU3.LOC:Local_timer_interrupts
    916.75 ±127%    +709.3%       7419 ± 96%  interrupts.CPU4.135:IR-PCI-MSI.2097156-edge.eth1-TxRx-3
    434195 ± 19%     +39.0%     603740        interrupts.CPU4.LOC:Local_timer_interrupts
    434195 ± 19%     +39.1%     604095        interrupts.CPU5.LOC:Local_timer_interrupts
    433638 ± 19%     +39.1%     603395        interrupts.CPU6.LOC:Local_timer_interrupts
    433862 ± 19%     +39.1%     603548        interrupts.CPU7.LOC:Local_timer_interrupts
    436082 ± 19%     +38.6%     604258        interrupts.CPU8.LOC:Local_timer_interrupts
    435856 ± 19%     +38.5%     603861        interrupts.CPU9.LOC:Local_timer_interrupts
   6954003 ± 19%     +39.0%    9662907        interrupts.LOC:Local_timer_interrupts
     48914 ± 13%     +50.8%      73740 ± 16%  softirqs.CPU0.RCU
     48512 ± 15%     +45.1%      70381 ± 10%  softirqs.CPU1.RCU
     48402 ± 14%     +53.5%      74319 ± 18%  softirqs.CPU10.RCU
     47968 ± 16%     +54.5%      74124 ± 20%  softirqs.CPU11.RCU
     48860 ± 14%     +55.2%      75812 ± 23%  softirqs.CPU12.RCU
     48603 ± 14%     +54.9%      75300 ± 23%  softirqs.CPU13.RCU
     47769 ± 14%     +55.5%      74284 ± 19%  softirqs.CPU14.RCU
     47544 ±  9%     +58.4%      75317 ± 20%  softirqs.CPU15.RCU
     50185 ± 16%     +48.8%      74685 ± 17%  softirqs.CPU2.RCU
     48269 ± 17%     +58.9%      76692 ± 20%  softirqs.CPU3.RCU
     48160 ± 14%     +61.5%      77778 ± 20%  softirqs.CPU4.RCU
     48987 ± 14%     +55.2%      76010 ± 19%  softirqs.CPU5.RCU
     47547 ± 15%     +55.6%      73969 ± 19%  softirqs.CPU6.RCU
     48942 ±  8%     +58.0%      77312 ± 17%  softirqs.CPU7.RCU
     47663 ± 15%     +50.8%      71899 ± 17%  softirqs.CPU8.RCU
     47067 ± 15%     +44.9%      68194 ± 10%  softirqs.CPU9.RCU
     10264 ± 63%    +177.9%      28525 ± 53%  softirqs.NET_RX
    773402 ± 14%     +53.8%    1189824 ± 18%  softirqs.RCU
     30133 ± 10%     +31.1%      39495 ± 10%  softirqs.TIMER
   4744705            +4.9%    4977897        perf-stat.i.cache-misses
      2501 ±  3%      +7.7%       2692 ±  3%  perf-stat.i.context-switches
 1.187e+10            +1.0%  1.198e+10        perf-stat.i.cpu-cycles
    253.78            -2.7%     246.90        perf-stat.i.cpu-migrations
      2222            -5.4%       2102        perf-stat.i.cycles-between-cache-misses
      0.24 ±  2%      +0.1        0.33 ±  9%  perf-stat.i.dTLB-load-miss-rate%
    556067 ±  4%     +45.5%     809110 ±  8%  perf-stat.i.dTLB-load-misses
      0.08 ±  2%      +0.1        0.13 ± 11%  perf-stat.i.dTLB-store-miss-rate%
    571183            +8.9%     621811 ±  2%  perf-stat.i.dTLB-store-misses
    737933 ±  3%     +24.9%     921496        perf-stat.i.iTLB-load-misses
     10849 ±  2%     -15.3%       9194        perf-stat.i.instructions-per-iTLB-miss
      0.74            +1.0%       0.75        perf-stat.i.metric.GHz
      0.39 ±  2%      +4.5%       0.41        perf-stat.i.metric.K/sec
      0.69            +0.0        0.72        perf-stat.overall.cache-miss-rate%
      1.00            +1.0%       1.01        perf-stat.overall.cpi
      2499            -3.8%       2405        perf-stat.overall.cycles-between-cache-misses
      0.04 ±  4%      +0.0        0.06 ±  8%  perf-stat.overall.dTLB-load-miss-rate%
      0.07            +0.0        0.07 ±  2%  perf-stat.overall.dTLB-store-miss-rate%
     65.65            +4.1       69.75        perf-stat.overall.iTLB-load-miss-rate%
     16036 ±  3%     -20.0%      12827        perf-stat.overall.instructions-per-iTLB-miss
      1.00            -1.0%       0.99        perf-stat.overall.ipc
   4729387            +4.9%    4961480        perf-stat.ps.cache-misses
      2492 ±  3%      +7.7%       2683 ±  3%  perf-stat.ps.context-switches
 1.182e+10            +0.9%  1.193e+10        perf-stat.ps.cpu-cycles
    252.92            -2.7%     246.03        perf-stat.ps.cpu-migrations
    554253 ±  4%     +45.5%     806429 ±  8%  perf-stat.ps.dTLB-load-misses
    569176            +8.9%     619587 ±  2%  perf-stat.ps.dTLB-store-misses
    735389 ±  3%     +24.9%     918286        perf-stat.ps.iTLB-load-misses
      0.03 ± 10%     +61.9%       0.06 ±  5%  perf-sched.sch_delay.avg.ms.devkmsg_read.vfs_read.ksys_read.do_syscall_64
      0.01 ± 17%     +37.5%       0.02 ±  9%  perf-sched.sch_delay.avg.ms.do_nanosleep.hrtimer_nanosleep.__x64_sys_nanosleep.do_syscall_64
      0.04 ±  2%     +46.1%       0.06 ± 10%  perf-sched.sch_delay.avg.ms.do_syslog.part.0.kmsg_read.vfs_read
      0.05 ±131%     -95.0%       0.00 ± 60%  perf-sched.sch_delay.avg.ms.preempt_schedule_common._cond_resched.down_read.iterate_supers.ksys_sync
      0.01 ±127%   +4793.3%       0.37 ±159%  perf-sched.sch_delay.avg.ms.preempt_schedule_common._cond_resched.down_read.walk_component.link_path_walk
      0.04 ±173%   +1138.3%       0.48 ±116%  perf-sched.sch_delay.avg.ms.preempt_schedule_common._cond_resched.exit_mmap.mmput.do_exit
      0.10 ±167%    +297.8%       0.41 ±102%  perf-sched.sch_delay.avg.ms.preempt_schedule_common._cond_resched.kmem_cache_alloc.vm_area_dup.__split_vma
      0.04 ±  4%     +34.3%       0.06 ±  6%  perf-sched.sch_delay.avg.ms.schedule_hrtimeout_range_clock.ep_poll.do_epoll_wait.__x64_sys_epoll_wait
      0.00 ± 63%  +18775.0%       0.75 ±109%  perf-sched.sch_delay.avg.ms.schedule_timeout.wait_for_completion.__flush_work.lru_add_drain_all
      0.09           +20.2%       0.11 ± 12%  perf-sched.sch_delay.max.ms.devkmsg_read.vfs_read.ksys_read.do_syscall_64
      0.03           +41.4%       0.05 ± 19%  perf-sched.sch_delay.max.ms.do_nanosleep.hrtimer_nanosleep.__x64_sys_nanosleep.do_syscall_64
      0.09 ±139%     -95.5%       0.00 ± 85%  perf-sched.sch_delay.max.ms.preempt_schedule_common._cond_resched.down_read.iterate_supers.ksys_sync
      0.02 ±154%   +3776.7%       0.71 ±165%  perf-sched.sch_delay.max.ms.preempt_schedule_common._cond_resched.down_read.walk_component.link_path_walk
      0.11 ±161%   +1121.1%       1.30 ± 94%  perf-sched.sch_delay.max.ms.preempt_schedule_common._cond_resched.kmem_cache_alloc.vm_area_dup.__split_vma
      0.09 ±  5%     +19.8%       0.10 ± 13%  perf-sched.sch_delay.max.ms.schedule_hrtimeout_range_clock.ep_poll.do_epoll_wait.__x64_sys_epoll_wait
      0.00 ± 63%  +18775.0%       0.75 ±109%  perf-sched.sch_delay.max.ms.schedule_timeout.wait_for_completion.__flush_work.lru_add_drain_all
    126.40 ±  5%     -14.6%     107.96 ±  2%  perf-sched.wait_and_delay.avg.ms.devkmsg_read.vfs_read.ksys_read.do_syscall_64
    125.99 ±  5%     -14.6%     107.62 ±  2%  perf-sched.wait_and_delay.avg.ms.do_syslog.part.0.kmsg_read.vfs_read
     12.97 ± 10%     +24.8%      16.18 ±  6%  perf-sched.wait_and_delay.avg.ms.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64
    122.43 ±  6%     -13.7%     105.63 ±  2%  perf-sched.wait_and_delay.avg.ms.schedule_hrtimeout_range_clock.ep_poll.do_epoll_wait.__x64_sys_epoll_wait
      1598           -11.5%       1414 ±  2%  perf-sched.wait_and_delay.avg.ms.schedule_hrtimeout_range_clock.poll_schedule_timeout.constprop.0.do_select
    111.50 ±  8%     +19.3%     133.00 ± 12%  perf-sched.wait_and_delay.count.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_reschedule_ipi.[unknown]
    126.37 ±  5%     -14.6%     107.90 ±  2%  perf-sched.wait_time.avg.ms.devkmsg_read.vfs_read.ksys_read.do_syscall_64
    125.95 ±  5%     -14.6%     107.56 ±  2%  perf-sched.wait_time.avg.ms.do_syslog.part.0.kmsg_read.vfs_read
     12.88 ± 10%     +25.0%      16.10 ±  6%  perf-sched.wait_time.avg.ms.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64
      0.47 ±  9%    +147.3%       1.17 ± 96%  perf-sched.wait_time.avg.ms.preempt_schedule_common._cond_resched.__alloc_pages_nodemask.alloc_pages_vma.do_anonymous_page
      0.24 ± 32%   +5539.0%      13.49 ± 96%  perf-sched.wait_time.avg.ms.preempt_schedule_common._cond_resched.do_user_addr_fault.exc_page_fault.asm_exc_page_fault
    122.39 ±  6%     -13.7%     105.57 ±  2%  perf-sched.wait_time.avg.ms.schedule_hrtimeout_range_clock.ep_poll.do_epoll_wait.__x64_sys_epoll_wait
      1598           -11.5%       1414 ±  2%  perf-sched.wait_time.avg.ms.schedule_hrtimeout_range_clock.poll_schedule_timeout.constprop.0.do_select
      2.66 ± 95%  +18768.8%     501.01 ± 99%  perf-sched.wait_time.max.ms.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_exc_page_fault.[unknown]
      1.95 ± 47%  +25754.4%     504.35 ± 98%  perf-sched.wait_time.max.ms.preempt_schedule_common._cond_resched.do_user_addr_fault.exc_page_fault.asm_exc_page_fault
      0.28 ±165%     -97.4%       0.01 ±  5%  perf-sched.wait_time.max.ms.preempt_schedule_common._cond_resched.dput.__fput.task_work_run
      1.91 ± 17%      -0.8        1.08 ± 24%  perf-profile.calltrace.cycles-pp.devkmsg_write.cold.new_sync_write.vfs_write.ksys_write.do_syscall_64
      1.91 ± 17%      -0.8        1.08 ± 24%  perf-profile.calltrace.cycles-pp.devkmsg_emit.devkmsg_write.cold.new_sync_write.vfs_write.ksys_write
      1.91 ± 17%      -0.8        1.08 ± 24%  perf-profile.calltrace.cycles-pp.vprintk_emit.devkmsg_emit.devkmsg_write.cold.new_sync_write.vfs_write
      1.69 ± 14%      -0.8        0.89 ± 15%  perf-profile.calltrace.cycles-pp.console_unlock.vprintk_emit.devkmsg_emit.devkmsg_write.cold.new_sync_write
      2.24 ± 14%      -0.8        1.45 ± 16%  perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.write
      2.23 ± 14%      -0.8        1.45 ± 16%  perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
      2.18 ± 14%      -0.8        1.40 ± 17%  perf-profile.calltrace.cycles-pp.new_sync_write.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe
      2.22 ± 14%      -0.8        1.44 ± 17%  perf-profile.calltrace.cycles-pp.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
      2.25 ± 14%      -0.8        1.48 ± 16%  perf-profile.calltrace.cycles-pp.write
      2.20 ± 14%      -0.8        1.43 ± 17%  perf-profile.calltrace.cycles-pp.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
      1.43 ± 18%      -0.7        0.73 ± 12%  perf-profile.calltrace.cycles-pp.serial8250_console_write.console_unlock.vprintk_emit.devkmsg_emit.devkmsg_write.cold
      1.33 ± 20%      -0.7        0.67 ± 13%  perf-profile.calltrace.cycles-pp.uart_console_write.serial8250_console_write.console_unlock.vprintk_emit.devkmsg_emit
      1.07 ± 21%      -0.6        0.43 ± 57%  perf-profile.calltrace.cycles-pp.wait_for_xmitr.serial8250_console_putchar.uart_console_write.serial8250_console_write.console_unlock
      1.07 ± 21%      -0.6        0.43 ± 57%  perf-profile.calltrace.cycles-pp.serial8250_console_putchar.uart_console_write.serial8250_console_write.console_unlock.vprintk_emit
      1.01 ± 22%      -0.6        0.42 ± 57%  perf-profile.calltrace.cycles-pp.io_serial_in.wait_for_xmitr.serial8250_console_putchar.uart_console_write.serial8250_console_write
      1.25 ± 24%      -0.4        0.85 ±  9%  perf-profile.calltrace.cycles-pp.asm_exc_page_fault
      1.97 ±  9%      -0.3        1.69 ±  9%  perf-profile.calltrace.cycles-pp.kthread.ret_from_fork
      1.98 ±  9%      -0.3        1.70 ±  9%  perf-profile.calltrace.cycles-pp.ret_from_fork
      1.98 ±  9%      -0.3        1.72 ±  2%  perf-profile.calltrace.cycles-pp.__handle_mm_fault.handle_mm_fault.do_user_addr_fault.exc_page_fault.asm_exc_page_fault
      1.77 ±  9%      -0.2        1.52 ±  8%  perf-profile.calltrace.cycles-pp.memcpy_toio.drm_fb_helper_damage_work.process_one_work.worker_thread.kthread
      1.83 ±  9%      -0.2        1.59 ±  9%  perf-profile.calltrace.cycles-pp.drm_fb_helper_damage_work.process_one_work.worker_thread.kthread.ret_from_fork
      1.84 ±  9%      -0.2        1.60 ±  9%  perf-profile.calltrace.cycles-pp.worker_thread.kthread.ret_from_fork
      1.84 ±  9%      -0.2        1.60 ±  9%  perf-profile.calltrace.cycles-pp.process_one_work.worker_thread.kthread.ret_from_fork
      0.74 ± 13%      -0.1        0.60 ± 13%  perf-profile.calltrace.cycles-pp.__hrtimer_run_queues.hrtimer_interrupt.__sysvec_apic_timer_interrupt.asm_call_sysvec_on_stack.sysvec_apic_timer_interrupt
      6.58 ± 12%      +1.8        8.39 ±  4%  perf-profile.calltrace.cycles-pp.intel_idle.cpuidle_enter_state.cpuidle_enter.do_idle.cpu_startup_entry
      9.51 ±  6%      -1.5        7.99 ±  2%  perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
      9.31 ±  6%      -1.5        7.82 ±  3%  perf-profile.children.cycles-pp.do_syscall_64
      2.28 ± 12%      -0.8        1.44 ± 17%  perf-profile.children.cycles-pp.ksys_write
      2.23 ± 12%      -0.8        1.40 ± 17%  perf-profile.children.cycles-pp.new_sync_write
      2.27 ± 12%      -0.8        1.44 ± 17%  perf-profile.children.cycles-pp.vfs_write
      1.91 ± 17%      -0.8        1.08 ± 24%  perf-profile.children.cycles-pp.devkmsg_write.cold
      1.91 ± 17%      -0.8        1.08 ± 24%  perf-profile.children.cycles-pp.devkmsg_emit
      2.14 ± 13%      -0.8        1.33 ± 28%  perf-profile.children.cycles-pp.vprintk_emit
      2.26 ± 14%      -0.8        1.49 ± 16%  perf-profile.children.cycles-pp.write
      1.90 ± 10%      -0.8        1.14 ± 23%  perf-profile.children.cycles-pp.console_unlock
      1.64 ± 14%      -0.7        0.97 ± 23%  perf-profile.children.cycles-pp.serial8250_console_write
      1.53 ± 15%      -0.6        0.89 ± 24%  perf-profile.children.cycles-pp.uart_console_write
      1.33 ± 14%      -0.5        0.80 ± 24%  perf-profile.children.cycles-pp.wait_for_xmitr
      1.26 ± 15%      -0.5        0.77 ± 23%  perf-profile.children.cycles-pp.io_serial_in
      1.23 ± 16%      -0.5        0.74 ± 26%  perf-profile.children.cycles-pp.serial8250_console_putchar
      2.39 ±  9%      -0.3        2.08 ±  2%  perf-profile.children.cycles-pp.__handle_mm_fault
      3.69 ±  7%      -0.3        3.40 ±  3%  perf-profile.children.cycles-pp.asm_exc_page_fault
      1.99 ±  9%      -0.3        1.71 ±  9%  perf-profile.children.cycles-pp.ret_from_fork
      1.97 ±  9%      -0.3        1.69 ±  9%  perf-profile.children.cycles-pp.kthread
      1.81 ±  9%      -0.3        1.56 ±  9%  perf-profile.children.cycles-pp.memcpy_toio
      1.83 ±  9%      -0.2        1.59 ±  9%  perf-profile.children.cycles-pp.drm_fb_helper_damage_work
      1.84 ±  9%      -0.2        1.60 ±  9%  perf-profile.children.cycles-pp.worker_thread
      1.84 ±  9%      -0.2        1.60 ±  9%  perf-profile.children.cycles-pp.process_one_work
      0.31 ± 20%      -0.2        0.15 ± 21%  perf-profile.children.cycles-pp.io_serial_out
      1.17 ± 11%      -0.2        1.02 ±  5%  perf-profile.children.cycles-pp.bprm_execve
      0.55 ± 16%      -0.1        0.41 ± 17%  perf-profile.children.cycles-pp.tick_sched_handle
      0.53 ± 11%      -0.1        0.43 ±  4%  perf-profile.children.cycles-pp.filemap_map_pages
      0.61 ± 11%      -0.1        0.51 ±  4%  perf-profile.children.cycles-pp.do_fault
      0.29 ± 14%      -0.1        0.23 ± 12%  perf-profile.children.cycles-pp.scheduler_tick
      0.09 ± 14%      -0.1        0.03 ±100%  perf-profile.children.cycles-pp.vma_interval_tree_insert
      0.38 ±  6%      -0.1        0.32 ±  3%  perf-profile.children.cycles-pp.ksys_mmap_pgoff
      0.11 ±  9%      -0.1        0.06 ± 61%  perf-profile.children.cycles-pp.vmacache_find
      0.20 ± 15%      -0.1        0.14 ±  7%  perf-profile.children.cycles-pp.wp_page_copy
      0.18 ±  7%      -0.0        0.13 ± 13%  perf-profile.children.cycles-pp.alloc_set_pte
      0.15 ± 26%      -0.0        0.11 ± 23%  perf-profile.children.cycles-pp.exit_to_user_mode_prepare
      0.10 ± 14%      -0.0        0.06 ± 14%  perf-profile.children.cycles-pp.vma_link
      0.15 ± 10%      -0.0        0.11 ± 12%  perf-profile.children.cycles-pp.__mmap
      0.17 ± 11%      -0.0        0.13 ±  6%  perf-profile.children.cycles-pp.__x64_sys_mprotect
      0.17 ± 11%      -0.0        0.13 ±  6%  perf-profile.children.cycles-pp.do_mprotect_pkey
      0.16 ±  8%      -0.0        0.12 ± 12%  perf-profile.children.cycles-pp.mprotect_fixup
      0.07 ± 10%      -0.0        0.04 ± 57%  perf-profile.children.cycles-pp.arch_scale_freq_tick
      0.09 ± 23%      -0.0        0.06 ± 11%  perf-profile.children.cycles-pp.irqtime_account_irq
      0.09 ±  9%      -0.0        0.06 ± 13%  perf-profile.children.cycles-pp.__do_sys_wait4
      0.12 ±  8%      -0.0        0.10        perf-profile.children.cycles-pp.compar2
      0.09 ± 20%      -0.0        0.07 ± 23%  perf-profile.children.cycles-pp.copy_user_enhanced_fast_string
      0.09 ± 10%      -0.0        0.06 ± 13%  perf-profile.children.cycles-pp.kernel_wait4
      0.08 ±  8%      -0.0        0.06 ± 11%  perf-profile.children.cycles-pp.do_wait
      0.09 ±  9%      -0.0        0.07 ± 12%  perf-profile.children.cycles-pp.__list_del_entry_valid
      2.47 ±  6%      +0.2        2.67        perf-profile.children.cycles-pp.page_test
      6.90 ± 12%      +1.7        8.59 ±  4%  perf-profile.children.cycles-pp.intel_idle
      1.26 ± 15%      -0.5        0.77 ± 23%  perf-profile.self.cycles-pp.io_serial_in
      1.81 ±  9%      -0.3        1.55 ±  9%  perf-profile.self.cycles-pp.memcpy_toio
      0.31 ± 20%      -0.2        0.15 ± 21%  perf-profile.self.cycles-pp.io_serial_out
      0.09 ± 14%      -0.1        0.03 ±100%  perf-profile.self.cycles-pp.vma_interval_tree_insert
      0.34 ±  8%      -0.1        0.29 ± 11%  perf-profile.self.cycles-pp.zap_pte_range
      0.11 ±  6%      -0.0        0.06 ± 61%  perf-profile.self.cycles-pp.vmacache_find
      0.21 ± 18%      -0.0        0.17 ± 17%  perf-profile.self.cycles-pp.___might_sleep
      0.07 ± 10%      -0.0        0.04 ± 57%  perf-profile.self.cycles-pp.arch_scale_freq_tick
      0.12 ±  6%      -0.0        0.10        perf-profile.self.cycles-pp.compar2
      0.08 ±  5%      -0.0        0.07 ± 13%  perf-profile.self.cycles-pp.__list_del_entry_valid
      0.15 ±  9%      +0.1        0.21 ± 14%  perf-profile.self.cycles-pp.cfree
      6.90 ± 12%      +1.7        8.59 ±  4%  perf-profile.self.cycles-pp.intel_idle





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


Thanks,
Oliver Sang


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