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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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