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Subject[LKP] [rcu] 7e28c5af4e: will-it-scale.per_process_ops 84.7% improvement
Greeting,

FYI, we noticed a 84.7% improvement of will-it-scale.per_process_ops due to commit:


commit: 7e28c5af4ef6b539334aa5de40feca0c041c94df ("rcu: Eliminate ->rcu_qs_ctr from the rcu_dynticks structure")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master

in testcase: will-it-scale
on test machine: 288 threads Intel(R) Xeon Phi(TM) CPU 7295 @ 1.50GHz with 80G memory
with following parameters:

nr_task: 100%
mode: process
test: brk1
cpufreq_governor: performance

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



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:
gcc-7/performance/x86_64-rhel-7.2/process/100%/debian-x86_64-2018-04-03.cgz/lkp-knm01/brk1/will-it-scale

commit:
c5bacd9417 ("rcu: Motivate Tiny RCU forward progress")
7e28c5af4e ("rcu: Eliminate ->rcu_qs_ctr from the rcu_dynticks structure")

c5bacd94173ec49d 7e28c5af4ef6b539334aa5de40
---------------- --------------------------
%stddev %change %stddev
\ | \
48605 +84.7% 89756 ± 4% will-it-scale.per_process_ops
13998509 +84.7% 25850040 ± 4% will-it-scale.workload
0.01 ± 63% -0.0 0.00 ±131% mpstat.cpu.soft%
11.86 ± 3% -1.2 10.65 ± 4% mpstat.cpu.usr%
662910 +15.8% 767829 ± 3% numa-numastat.node0.local_node
662889 +15.8% 767801 ± 3% numa-numastat.node0.numa_hit
2149 ± 4% -16.9% 1785 ± 2% vmstat.system.cs
727237 ± 3% -14.9% 618668 vmstat.system.in
284156 ± 4% +32.5% 376625 numa-meminfo.node0.Active
283908 ± 4% +32.6% 376374 numa-meminfo.node0.Active(anon)
110629 ± 15% -77.7% 24625 ± 18% numa-meminfo.node0.Inactive
110393 ± 15% -77.9% 24400 ± 19% numa-meminfo.node0.Inactive(anon)
284255 ± 4% +32.5% 376666 meminfo.Active
284007 ± 4% +32.5% 376415 meminfo.Active(anon)
110855 ± 15% -77.8% 24620 ± 18% meminfo.Inactive
110619 ± 15% -77.9% 24395 ± 19% meminfo.Inactive(anon)
8.00 ±173% +11303.1% 912.25 ± 87% meminfo.Mlocked
11072 -15.7% 9338 ± 3% meminfo.max_used_kB
71004 ± 4% +32.6% 94124 numa-vmstat.node0.nr_active_anon
27812 ± 15% -78.1% 6100 ± 19% numa-vmstat.node0.nr_inactive_anon
1.00 ±173% +13100.0% 132.00 ± 87% numa-vmstat.node0.nr_mlock
71002 ± 4% +32.6% 94122 numa-vmstat.node0.nr_zone_active_anon
27811 ± 15% -78.1% 6100 ± 19% numa-vmstat.node0.nr_zone_inactive_anon
1.00 ±173% +9450.0% 95.50 ± 87% numa-vmstat.node1.nr_mlock
70939 ± 4% +32.8% 94186 proc-vmstat.nr_active_anon
27523 ± 15% -77.8% 6101 ± 19% proc-vmstat.nr_inactive_anon
2.25 ±173% +10044.4% 228.25 ± 86% proc-vmstat.nr_mlock
70939 ± 4% +32.8% 94186 proc-vmstat.nr_zone_active_anon
27523 ± 15% -77.8% 6101 ± 19% proc-vmstat.nr_zone_inactive_anon
680060 +15.8% 787707 ± 2% proc-vmstat.numa_hit
680060 +15.8% 787707 ± 2% proc-vmstat.numa_local
140509 ± 10% -45.3% 76820 ± 24% proc-vmstat.numa_pte_updates
895.50 ± 30% +480.0% 5193 ± 36% proc-vmstat.pgactivate
774283 +13.9% 882060 ± 3% proc-vmstat.pgalloc_normal
653457 +21.9% 796258 ± 3% proc-vmstat.pgfault
610954 ± 2% +32.4% 808662 ± 3% proc-vmstat.pgfree
5299 ± 6% +106.4% 10939 ± 36% softirqs.CPU10.RCU
106293 ± 5% +28.2% 136274 ± 15% softirqs.CPU126.TIMER
108234 ± 6% +26.3% 136696 ± 15% softirqs.CPU127.TIMER
109747 ± 7% +26.4% 138696 ± 11% softirqs.CPU135.TIMER
111732 ± 8% +24.4% 138967 ± 11% softirqs.CPU138.TIMER
107031 ± 8% +26.7% 135558 ± 14% softirqs.CPU148.TIMER
100841 +23.1% 124155 ± 15% softirqs.CPU15.TIMER
104640 ± 4% +27.8% 133719 ± 16% softirqs.CPU172.TIMER
103142 ± 3% +30.9% 135023 ± 13% softirqs.CPU190.TIMER
106698 ± 10% +27.5% 136023 ± 13% softirqs.CPU197.TIMER
110268 ± 2% +22.5% 135052 ± 12% softirqs.CPU205.TIMER
106111 ± 8% +23.9% 131436 ± 14% softirqs.CPU206.TIMER
106894 ± 6% +28.7% 137574 ± 14% softirqs.CPU213.TIMER
108418 ± 8% +28.3% 139100 ± 12% softirqs.CPU214.TIMER
100170 ± 10% +32.8% 132978 ± 15% softirqs.CPU215.TIMER
100836 ± 2% +30.3% 131406 ± 17% softirqs.CPU217.TIMER
112497 ± 8% +22.9% 138291 ± 13% softirqs.CPU219.TIMER
108669 ± 10% +22.1% 132720 ± 15% softirqs.CPU220.TIMER
108584 ± 8% +25.5% 136230 ± 13% softirqs.CPU227.TIMER
106251 ± 6% +28.6% 136686 ± 11% softirqs.CPU236.TIMER
105296 ± 7% +31.3% 138251 ± 12% softirqs.CPU238.TIMER
3915 ± 8% +77.4% 6945 ± 30% softirqs.CPU249.RCU
101465 ± 2% +26.5% 128388 ± 19% softirqs.CPU271.TIMER
104242 ± 8% +23.7% 128907 ± 17% softirqs.CPU70.TIMER
107020 ± 7% +26.9% 135845 ± 13% softirqs.CPU92.TIMER
9.659e+09 ± 10% +16.3% 1.124e+10 ± 3% perf-stat.i.branch-instructions
6.69 +1.0 7.69 ± 2% perf-stat.i.branch-miss-rate%
6.443e+08 ± 10% +33.3% 8.59e+08 ± 2% perf-stat.i.branch-misses
4.10 ± 6% +0.9 5.04 ± 10% perf-stat.i.cache-miss-rate%
67464898 ± 10% +25.2% 84491315 ± 4% perf-stat.i.cache-misses
2820 ± 13% -32.4% 1906 ± 3% perf-stat.i.context-switches
15.34 -37.0% 9.67 ± 3% perf-stat.i.cpi
7.067e+11 ± 11% -30.2% 4.932e+11 ± 4% perf-stat.i.cpu-cycles
71.93 ± 10% -41.9% 41.79 ± 9% perf-stat.i.cpu-migrations
2.36 -0.0 2.33 perf-stat.i.iTLB-load-miss-rate%
1.106e+09 ± 10% +15.1% 1.273e+09 ± 2% perf-stat.i.iTLB-load-misses
4.569e+10 ± 10% +17.0% 5.345e+10 ± 3% perf-stat.i.iTLB-loads
4.621e+10 ± 10% +16.1% 5.364e+10 ± 3% perf-stat.i.instructions
0.07 +64.1% 0.11 ± 3% perf-stat.i.ipc
3524 ± 11% -18.3% 2878 perf-stat.i.minor-faults
993359 ± 11% -32.0% 675215 ± 2% perf-stat.i.msec
3529 ± 11% -18.5% 2878 perf-stat.i.page-faults
6.67 +1.0 7.65 perf-stat.overall.branch-miss-rate%
3.91 +0.6 4.54 ± 3% perf-stat.overall.cache-miss-rate%
15.28 -39.8% 9.20 ± 3% perf-stat.overall.cpi
2.36 -0.0 2.33 perf-stat.overall.iTLB-load-miss-rate%
41.78 +0.9% 42.13 perf-stat.overall.instructions-per-iTLB-miss
0.07 +66.4% 0.11 ± 3% perf-stat.overall.ipc
580565 -5.5% 548645 perf-stat.overall.path-length
1.699e+12 +74.9% 2.971e+12 ± 4% perf-stat.total.branch-instructions
1.133e+11 +100.6% 2.272e+11 ± 5% perf-stat.total.branch-misses
1.186e+10 +88.0% 2.23e+10 perf-stat.total.cache-misses
3.032e+11 +62.2% 4.918e+11 ± 2% perf-stat.total.cache-references
1.242e+14 +4.8% 1.302e+14 perf-stat.total.cpu-cycles
12654 -13.0% 11014 ± 5% perf-stat.total.cpu-migrations
1.945e+11 +73.0% 3.365e+11 ± 3% perf-stat.total.iTLB-load-misses
8.038e+12 +75.8% 1.413e+13 ± 4% perf-stat.total.iTLB-loads
8.127e+12 +74.5% 1.418e+13 ± 4% perf-stat.total.instructions
619183 +22.9% 760791 ± 3% perf-stat.total.minor-faults
620031 +22.7% 760750 ± 3% perf-stat.total.page-faults
23472574 ± 28% -50.0% 11736977 ± 60% sched_debug.cfs_rq:/.MIN_vruntime.max
1380731 ± 28% -46.9% 733243 ± 66% sched_debug.cfs_rq:/.MIN_vruntime.stddev
109109 +17.1% 127734 sched_debug.cfs_rq:/.exec_clock.avg
115740 +12.4% 130080 sched_debug.cfs_rq:/.exec_clock.max
4252 ± 4% -50.4% 2110 ± 36% sched_debug.cfs_rq:/.exec_clock.stddev
6243 ± 12% -14.0% 5369 ± 15% sched_debug.cfs_rq:/.load.avg
887713 ± 24% -30.6% 616115 ± 43% sched_debug.cfs_rq:/.load.max
53788 ± 23% -30.4% 37427 ± 40% sched_debug.cfs_rq:/.load.stddev
23472574 ± 28% -50.0% 11736977 ± 60% sched_debug.cfs_rq:/.max_vruntime.max
1380731 ± 28% -46.9% 733243 ± 66% sched_debug.cfs_rq:/.max_vruntime.stddev
36862110 +17.8% 43411425 sched_debug.cfs_rq:/.min_vruntime.avg
39448691 +12.5% 44387703 sched_debug.cfs_rq:/.min_vruntime.max
1668979 ± 3% -45.0% 917652 ± 30% sched_debug.cfs_rq:/.min_vruntime.stddev
1.38 ± 9% -9.1% 1.25 ± 6% sched_debug.cfs_rq:/.nr_running.max
0.56 ± 19% +42.2% 0.80 sched_debug.cfs_rq:/.nr_running.min
0.07 ± 13% -32.7% 0.05 ± 15% sched_debug.cfs_rq:/.nr_running.stddev
2.25 ± 3% -51.5% 1.09 ± 2% sched_debug.cfs_rq:/.nr_spread_over.avg
6235 ± 12% -14.0% 5361 ± 16% sched_debug.cfs_rq:/.runnable_weight.avg
887713 ± 24% -30.6% 616088 ± 43% sched_debug.cfs_rq:/.runnable_weight.max
53791 ± 23% -30.4% 37423 ± 40% sched_debug.cfs_rq:/.runnable_weight.stddev
513480 ± 46% -68.1% 163689 ± 16% sched_debug.cfs_rq:/.spread0.avg
992070 ± 25% -55.6% 440313 ± 8% sched_debug.cfs_rq:/.spread0.max
271.31 ± 25% +54.1% 418.15 ± 23% sched_debug.cfs_rq:/.util_avg.min
71.69 ± 6% -14.9% 61.03 ± 7% sched_debug.cfs_rq:/.util_avg.stddev
638.86 +18.5% 756.85 ± 3% sched_debug.cfs_rq:/.util_est_enqueued.avg
131.07 ± 2% -17.0% 108.78 ± 5% sched_debug.cfs_rq:/.util_est_enqueued.stddev
1617727 ± 4% -24.5% 1222141 ± 11% sched_debug.cpu.avg_idle.avg
167800 ± 2% +13.3% 190124 ± 4% sched_debug.cpu.clock.avg
174380 +10.3% 192313 ± 4% sched_debug.cpu.clock.max
161230 ± 2% +16.5% 187888 ± 4% sched_debug.cpu.clock.min
3797 ± 4% -66.4% 1276 ± 8% sched_debug.cpu.clock.stddev
167800 ± 2% +13.3% 190124 ± 4% sched_debug.cpu.clock_task.avg
174380 +10.3% 192313 ± 4% sched_debug.cpu.clock_task.max
161230 ± 2% +16.5% 187888 ± 4% sched_debug.cpu.clock_task.min
3797 ± 4% -66.4% 1276 ± 8% sched_debug.cpu.clock_task.stddev
5416 ± 2% +15.6% 6262 ± 5% sched_debug.cpu.curr->pid.max
2045 ± 18% +20.6% 2466 ± 3% sched_debug.cpu.curr->pid.min
892728 ± 7% -37.5% 557989 ± 5% sched_debug.cpu.max_idle_balance_cost.avg
4113479 ± 18% -51.6% 1989769 ± 36% sched_debug.cpu.max_idle_balance_cost.max
461057 ± 17% -67.6% 149491 ± 36% sched_debug.cpu.max_idle_balance_cost.stddev
0.00 ± 4% -65.8% 0.00 ± 23% sched_debug.cpu.next_balance.stddev
117031 +16.4% 136279 sched_debug.cpu.nr_load_updates.avg
139472 ± 3% +16.0% 161763 ± 4% sched_debug.cpu.nr_load_updates.max
109218 +22.1% 133390 sched_debug.cpu.nr_load_updates.min
3910 ± 3% -46.0% 2111 ± 19% sched_debug.cpu.nr_load_updates.stddev
0.16 ± 4% -19.4% 0.13 ± 3% sched_debug.cpu.nr_running.stddev
1108 +12.5% 1247 ± 2% sched_debug.cpu.nr_switches.avg
26767 ± 16% +60.1% 42860 ± 15% sched_debug.cpu.nr_switches.max
2342 ± 4% +34.2% 3144 ± 7% sched_debug.cpu.nr_switches.stddev
29066 ± 11% +83.5% 53341 ± 36% sched_debug.cpu.sched_count.max
2473 ± 2% +61.3% 3988 ± 33% sched_debug.cpu.sched_count.stddev
275.25 ± 3% +33.5% 367.54 sched_debug.cpu.ttwu_count.avg
10910 ± 17% +67.3% 18254 ± 13% sched_debug.cpu.ttwu_count.max
50.31 ± 2% +19.9% 60.30 ± 2% sched_debug.cpu.ttwu_count.min
832.06 ± 10% +46.1% 1215 ± 7% sched_debug.cpu.ttwu_count.stddev
176.33 +42.8% 251.81 ± 2% sched_debug.cpu.ttwu_local.avg
10535 ± 18% +69.7% 17877 ± 14% sched_debug.cpu.ttwu_local.max
31.56 +15.2% 36.35 sched_debug.cpu.ttwu_local.min
729.04 ± 13% +57.2% 1146 ± 9% sched_debug.cpu.ttwu_local.stddev
161164 ± 2% +16.6% 187864 ± 4% sched_debug.cpu_clk
160513 ± 2% +16.6% 187213 ± 4% sched_debug.ktime
1.31 ± 24% +39.1% 1.82 sched_debug.rt_rq:/.rt_runtime.stddev
161891 ± 2% +16.3% 188213 ± 4% sched_debug.sched_clk
745.75 ± 61% -87.9% 90.25 ±173% interrupts.36:IR-PCI-MSI.2621442-edge.eth1-TxRx-1
961.75 ± 48% -75.5% 235.25 ±173% interrupts.37:IR-PCI-MSI.2621443-edge.eth1-TxRx-2
4649 ± 16% -25.2% 3475 ± 3% interrupts.CPU100.NMI:Non-maskable_interrupts
4649 ± 16% -25.2% 3475 ± 3% interrupts.CPU100.PMI:Performance_monitoring_interrupts
30.50 ± 17% +277.9% 115.25 ± 49% interrupts.CPU109.RES:Rescheduling_interrupts
552027 ± 5% +12.2% 619466 ± 2% interrupts.CPU110.LOC:Local_timer_interrupts
274.50 ± 59% -44.9% 151.25 ± 92% interrupts.CPU116.RES:Rescheduling_interrupts
37.50 ± 47% +323.3% 158.75 ± 43% interrupts.CPU121.RES:Rescheduling_interrupts
7275 ± 12% -45.9% 3937 ± 25% interrupts.CPU125.NMI:Non-maskable_interrupts
7275 ± 12% -45.9% 3937 ± 25% interrupts.CPU125.PMI:Performance_monitoring_interrupts
5151 ± 34% -32.6% 3470 ± 6% interrupts.CPU140.NMI:Non-maskable_interrupts
5151 ± 34% -32.6% 3470 ± 6% interrupts.CPU140.PMI:Performance_monitoring_interrupts
5589 ± 28% -26.0% 4134 ± 32% interrupts.CPU153.NMI:Non-maskable_interrupts
5589 ± 28% -26.0% 4134 ± 32% interrupts.CPU153.PMI:Performance_monitoring_interrupts
745.75 ± 61% -87.9% 90.25 ±173% interrupts.CPU16.36:IR-PCI-MSI.2621442-edge.eth1-TxRx-1
961.75 ± 48% -75.5% 235.25 ±173% interrupts.CPU17.37:IR-PCI-MSI.2621443-edge.eth1-TxRx-2
6606 ± 25% -38.6% 4057 ± 27% interrupts.CPU171.NMI:Non-maskable_interrupts
6606 ± 25% -38.6% 4057 ± 27% interrupts.CPU171.PMI:Performance_monitoring_interrupts
5916 ± 21% -28.9% 4205 ± 28% interrupts.CPU172.NMI:Non-maskable_interrupts
5916 ± 21% -28.9% 4205 ± 28% interrupts.CPU172.PMI:Performance_monitoring_interrupts
85.50 ± 36% -79.2% 17.75 ± 72% interrupts.CPU176.RES:Rescheduling_interrupts
74.00 ± 79% -79.1% 15.50 ± 27% interrupts.CPU177.RES:Rescheduling_interrupts
6513 ± 21% -36.4% 4139 ± 24% interrupts.CPU180.NMI:Non-maskable_interrupts
6513 ± 21% -36.4% 4139 ± 24% interrupts.CPU180.PMI:Performance_monitoring_interrupts
17.50 ± 32% +371.4% 82.50 ±101% interrupts.CPU181.RES:Rescheduling_interrupts
41.00 ±101% +232.9% 136.50 ± 79% interrupts.CPU183.RES:Rescheduling_interrupts
5998 ± 31% -29.3% 4238 ± 18% interrupts.CPU192.NMI:Non-maskable_interrupts
5998 ± 31% -29.3% 4238 ± 18% interrupts.CPU192.PMI:Performance_monitoring_interrupts
5812 ± 21% -40.6% 3450 ± 4% interrupts.CPU198.NMI:Non-maskable_interrupts
5812 ± 21% -40.6% 3450 ± 4% interrupts.CPU198.PMI:Performance_monitoring_interrupts
5605 ± 22% -27.0% 4093 ± 26% interrupts.CPU200.NMI:Non-maskable_interrupts
5605 ± 22% -27.0% 4093 ± 26% interrupts.CPU200.PMI:Performance_monitoring_interrupts
5528 ± 27% -38.1% 3423 ± 2% interrupts.CPU212.NMI:Non-maskable_interrupts
5528 ± 27% -38.1% 3423 ± 2% interrupts.CPU212.PMI:Performance_monitoring_interrupts
6447 ± 27% -31.2% 4433 ± 39% interrupts.CPU216.NMI:Non-maskable_interrupts
6447 ± 27% -31.2% 4433 ± 39% interrupts.CPU216.PMI:Performance_monitoring_interrupts
561218 ± 5% +10.4% 619618 ± 2% interrupts.CPU220.LOC:Local_timer_interrupts
201.00 ±134% -85.0% 30.25 ± 53% interrupts.CPU228.RES:Rescheduling_interrupts
5757 ± 22% -35.4% 3719 ± 4% interrupts.CPU229.NMI:Non-maskable_interrupts
5757 ± 22% -35.4% 3719 ± 4% interrupts.CPU229.PMI:Performance_monitoring_interrupts
165.75 ± 46% -70.6% 48.75 ±103% interrupts.CPU230.RES:Rescheduling_interrupts
23.75 ± 38% +346.3% 106.00 ± 87% interrupts.CPU236.RES:Rescheduling_interrupts
4576 ± 15% -26.0% 3385 ± 3% interrupts.CPU248.NMI:Non-maskable_interrupts
4576 ± 15% -26.0% 3385 ± 3% interrupts.CPU248.PMI:Performance_monitoring_interrupts
606.75 ±140% -92.7% 44.00 ± 69% interrupts.CPU252.RES:Rescheduling_interrupts
80.00 ± 62% -67.5% 26.00 ± 30% interrupts.CPU256.RES:Rescheduling_interrupts
5696 ± 30% -26.9% 4164 ± 26% interrupts.CPU259.NMI:Non-maskable_interrupts
5696 ± 30% -26.9% 4164 ± 26% interrupts.CPU259.PMI:Performance_monitoring_interrupts
1796 ± 99% -76.2% 428.00 ± 45% interrupts.CPU26.RES:Rescheduling_interrupts
109.50 ± 70% -66.0% 37.25 ± 55% interrupts.CPU266.RES:Rescheduling_interrupts
143.00 ± 38% -69.1% 44.25 ± 90% interrupts.CPU271.RES:Rescheduling_interrupts
5526 ± 29% -34.5% 3619 interrupts.CPU278.NMI:Non-maskable_interrupts
5526 ± 29% -34.5% 3619 interrupts.CPU278.PMI:Performance_monitoring_interrupts
94.75 ± 42% -55.1% 42.50 ± 64% interrupts.CPU278.RES:Rescheduling_interrupts
6671 ± 19% -31.4% 4579 ± 31% interrupts.CPU281.NMI:Non-maskable_interrupts
6671 ± 19% -31.4% 4579 ± 31% interrupts.CPU281.PMI:Performance_monitoring_interrupts
7140 ± 25% -45.1% 3917 ± 2% interrupts.CPU37.NMI:Non-maskable_interrupts
7140 ± 25% -45.1% 3917 ± 2% interrupts.CPU37.PMI:Performance_monitoring_interrupts
6176 ± 29% -37.9% 3834 ± 3% interrupts.CPU38.NMI:Non-maskable_interrupts
6176 ± 29% -37.9% 3834 ± 3% interrupts.CPU38.PMI:Performance_monitoring_interrupts
968.50 ±109% -75.0% 241.75 ± 42% interrupts.CPU38.RES:Rescheduling_interrupts
6057 ± 24% -28.2% 4352 ± 23% interrupts.CPU41.NMI:Non-maskable_interrupts
6057 ± 24% -28.2% 4352 ± 23% interrupts.CPU41.PMI:Performance_monitoring_interrupts
120.00 ± 99% +376.2% 571.50 ± 85% interrupts.CPU47.RES:Rescheduling_interrupts
177.75 ± 31% +247.4% 617.50 ± 88% interrupts.CPU48.RES:Rescheduling_interrupts
110.00 ± 83% +116.6% 238.25 ± 26% interrupts.CPU49.RES:Rescheduling_interrupts
6925 ± 22% -45.4% 3781 ± 3% interrupts.CPU50.NMI:Non-maskable_interrupts
6925 ± 22% -45.4% 3781 ± 3% interrupts.CPU50.PMI:Performance_monitoring_interrupts
180.25 ± 97% +685.2% 1415 ±115% interrupts.CPU51.RES:Rescheduling_interrupts
182.50 ± 53% +1719.2% 3320 ± 62% interrupts.CPU52.RES:Rescheduling_interrupts
5043 ± 18% -26.0% 3730 ± 5% interrupts.CPU57.NMI:Non-maskable_interrupts
5043 ± 18% -26.0% 3730 ± 5% interrupts.CPU57.PMI:Performance_monitoring_interrupts
3655 ± 9% +33.0% 4863 ± 21% interrupts.CPU60.NMI:Non-maskable_interrupts
3655 ± 9% +33.0% 4863 ± 21% interrupts.CPU60.PMI:Performance_monitoring_interrupts
6130 ± 24% -28.1% 4410 ± 21% interrupts.CPU64.NMI:Non-maskable_interrupts
6130 ± 24% -28.1% 4410 ± 21% interrupts.CPU64.PMI:Performance_monitoring_interrupts
5811 ± 25% -36.1% 3713 interrupts.CPU76.NMI:Non-maskable_interrupts
5811 ± 25% -36.1% 3713 interrupts.CPU76.PMI:Performance_monitoring_interrupts
6036 ± 28% -39.4% 3660 ± 5% interrupts.CPU80.NMI:Non-maskable_interrupts
6036 ± 28% -39.4% 3660 ± 5% interrupts.CPU80.PMI:Performance_monitoring_interrupts
6494 ± 25% -43.9% 3640 ± 5% interrupts.CPU82.NMI:Non-maskable_interrupts
6494 ± 25% -43.9% 3640 ± 5% interrupts.CPU82.PMI:Performance_monitoring_interrupts
6881 ± 13% -48.8% 3522 ± 3% interrupts.CPU84.NMI:Non-maskable_interrupts
6881 ± 13% -48.8% 3522 ± 3% interrupts.CPU84.PMI:Performance_monitoring_interrupts
110.75 ± 19% +119.4% 243.00 ± 19% interrupts.CPU9.RES:Rescheduling_interrupts



will-it-scale.per_process_ops

95000 +-+-----------------------------------O-----------------------------+
90000 +-+ O O O O O |
| O O OO O O |
85000 +-+ OOO O O O |
80000 +-+ OO O O O |
| O O O |
75000 +-+O O |
70000 OO+ O O O |
65000 +-+ |
| |
60000 +-+ |
55000 +-+ + + .+ .+ ++. |
| .+++.+ ++.+ :.+ + ++ + +++.+++.++ + .+++.+ +. + |
50000 +-+ + + :+ +++ + .++ + ++.+++.+|
45000 +-+-----------------------------------------------------------------+


[*] bisect-good sample
[O] bisect-bad sample



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


Thanks,
Rong Chen
---

#! jobs/will-it-scale-100.yaml
suite: will-it-scale
testcase: will-it-scale
category: benchmark
nr_task: 100%
will-it-scale:
mode: process
test: brk1
job_origin: "/lkp/lkp/.src-20181229-091801/allot/cyclic:p1:linux-devel:devel-hourly/lkp-knm01/will-it-scale-100.yaml"

#! queue options
queue: bisect
testbox: lkp-knm01
tbox_group: lkp-knm01
submit_id: 5c2b509f0b9a935849d3d1a6
job_file: "/lkp/jobs/scheduled/lkp-knm01/will-it-scale-performance-process-100%-brk1-debian-x86_64-2018-04-03.cgz-7e28c5af4ef6b539334aa5de40feca0c041c94df-20190101-22601-1ncxbj9-0.yaml"
id: 3b65780fc5b8920f2e29ad867cd42a75eee7bd74
queuer_version: "/lkp/lkp/.src-20181229-164014"

#! hosts/lkp-knm01

#! include/category/benchmark
kmsg:
boot-time:
iostat:
heartbeat:
vmstat:
numa-numastat:
numa-vmstat:
numa-meminfo:
proc-vmstat:
proc-stat:
meminfo:
slabinfo:
interrupts:
lock_stat:
latency_stats:
softirqs:
bdi_dev_mapping:
diskstats:
nfsstat:
cpuidle:
cpufreq-stats:
turbostat:
sched_debug:
perf-stat:
mpstat:
perf-profile:

#! include/category/ALL
cpufreq_governor: performance

#! include/queue/cyclic
commit: 7e28c5af4ef6b539334aa5de40feca0c041c94df

#! default params
kconfig: x86_64-rhel-7.2
compiler: gcc-7
rootfs: debian-x86_64-2018-04-03.cgz
enqueue_time: 2019-01-01 19:35:59.961441013 +08:00
_id: 5c2b509f0b9a935849d3d1a6
_rt: "/result/will-it-scale/performance-process-100%-brk1/lkp-knm01/debian-x86_64-2018-04-03.cgz/x86_64-rhel-7.2/gcc-7/7e28c5af4ef6b539334aa5de40feca0c041c94df"

#! schedule options
user: lkp
head_commit: ab4756ff8ee9144cb7045eff9043ed2c6522e3b1
base_commit: 8fe28cb58bcb235034b64cbbb7550a8a43fd88be
branch: linux-devel/devel-hourly-2018123112
result_root: "/result/will-it-scale/performance-process-100%-brk1/lkp-knm01/debian-x86_64-2018-04-03.cgz/x86_64-rhel-7.2/gcc-7/7e28c5af4ef6b539334aa5de40feca0c041c94df/0"
scheduler_version: "/lkp/lkp/.src-20181229-164014"
LKP_SERVER: inn
max_uptime: 1500
initrd: "/osimage/debian/debian-x86_64-2018-04-03.cgz"
bootloader_append:
- root=/dev/ram0
- user=lkp
- job=/lkp/jobs/scheduled/lkp-knm01/will-it-scale-performance-process-100%-brk1-debian-x86_64-2018-04-03.cgz-7e28c5af4ef6b539334aa5de40feca0c041c94df-20190101-22601-1ncxbj9-0.yaml
- ARCH=x86_64
- kconfig=x86_64-rhel-7.2
- branch=linux-devel/devel-hourly-2018123112
- commit=7e28c5af4ef6b539334aa5de40feca0c041c94df
- BOOT_IMAGE=/pkg/linux/x86_64-rhel-7.2/gcc-7/7e28c5af4ef6b539334aa5de40feca0c041c94df/vmlinuz-4.19.0-rc1-00100-g7e28c5a
- max_uptime=1500
- RESULT_ROOT=/result/will-it-scale/performance-process-100%-brk1/lkp-knm01/debian-x86_64-2018-04-03.cgz/x86_64-rhel-7.2/gcc-7/7e28c5af4ef6b539334aa5de40feca0c041c94df/0
- LKP_SERVER=inn
- debug
- apic=debug
- sysrq_always_enabled
- rcupdate.rcu_cpu_stall_timeout=100
- net.ifnames=0
- printk.devkmsg=on
- panic=-1
- softlockup_panic=1
- nmi_watchdog=panic
- oops=panic
- load_ramdisk=2
- prompt_ramdisk=0
- drbd.minor_count=8
- systemd.log_level=err
- ignore_loglevel
- console=tty0
- earlyprintk=ttyS0,115200
- console=ttyS0,115200
- vga=normal
- rw
modules_initrd: "/pkg/linux/x86_64-rhel-7.2/gcc-7/7e28c5af4ef6b539334aa5de40feca0c041c94df/modules.cgz"
bm_initrd: "/osimage/deps/debian-x86_64-2018-04-03.cgz/run-ipconfig_2018-04-03.cgz,/osimage/deps/debian-x86_64-2018-04-03.cgz/lkp_2018-04-03.cgz,/osimage/deps/debian-x86_64-2018-04-03.cgz/rsync-rootfs_2018-04-03.cgz,/osimage/deps/debian-x86_64-2018-04-03.cgz/will-it-scale_2018-05-17.cgz,/osimage/pkg/debian-x86_64-2018-04-03.cgz/will-it-scale-x86_64-decad85_2018-06-07.cgz,/osimage/deps/debian-x86_64-2018-04-03.cgz/mpstat_2018-06-19.cgz,/osimage/deps/debian-x86_64-2018-04-03.cgz/turbostat_2018-05-17.cgz,/osimage/pkg/debian-x86_64-2018-04-03.cgz/turbostat-x86_64-d5256b2_2018-05-18.cgz,/osimage/deps/debian-x86_64-2018-04-03.cgz/perf_2019-01-01.cgz,/osimage/pkg/debian-x86_64-2018-04-03.cgz/perf-x86_64-e1ef035d272e_2019-01-01.cgz,/osimage/deps/debian-x86_64-2018-04-03.cgz/hw_2016-11-15.cgz"
lkp_initrd: "/lkp/lkp/lkp-x86_64.cgz"
site: inn

#! /lkp/lkp/.src-20181229-164014/include/site/inn
LKP_CGI_PORT: 80
LKP_CIFS_PORT: 139
oom-killer:
watchdog:

#! runtime status
repeat_to: 2
model: Knights Mill
nr_node: 1
nr_cpu: 288
memory: 80G
hdd_partitions:
swap_partitions: LABEL=SWAP
rootfs_partition: LABEL=LKP-ROOTFS

#! user overrides
kernel: "/pkg/linux/x86_64-rhel-7.2/gcc-7/7e28c5af4ef6b539334aa5de40feca0c041c94df/vmlinuz-4.19.0-rc1-00100-g7e28c5a"
dequeue_time: 2019-01-01 20:16:40.604583551 +08:00
job_state: finished
loadavg: 60.12 134.31 72.59 1/1845 11197
start_time: '1546345124'
end_time: '1546345447'
version: "/lkp/lkp/.src-20181229-164014"

for cpu_dir in /sys/devices/system/cpu/cpu[0-9]*
do
online_file="$cpu_dir"/online
[ -f "$online_file" ] && [ "$(cat "$online_file")" -eq 0 ] && continue

file="$cpu_dir"/cpufreq/scaling_governor
[ -f "$file" ] && echo "performance" > "$file"
done

"python2" "./runtest.py" "brk1" "295" "process" "288"
\
 
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