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Date: Sun, 22 Nov 2020 23:04:15 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Mel Gorman <mgorman@...hsingularity.net>
Cc: LKML <linux-kernel@...r.kernel.org>,
Ingo Molnar <mingo@...nel.org>,
Peter Zijlstra <peterz@...radead.org>,
Vincent Guittot <vincent.guittot@...aro.org>,
Valentin Schneider <valentin.schneider@....com>,
Juri Lelli <juri.lelli@...hat.com>,
Mel Gorman <mgorman@...hsingularity.net>,
0day robot <lkp@...el.com>, lkp@...ts.01.org,
ying.huang@...el.com, feng.tang@...el.com, zhengjun.xing@...el.com,
aubrey.li@...ux.intel.com, yu.c.chen@...el.com
Subject: [sched/numa] e7f28850ea: unixbench.score 1.5% improvement
Greeting,
FYI, we noticed a 1.5% improvement of unixbench.score due to commit:
commit: e7f28850eadc14c0976f7872f2ddfef7a0a1d9f4 ("[PATCH 3/3] sched/numa: Limit the amount of imbalance that can exist at fork time")
url: https://github.com/0day-ci/linux/commits/Mel-Gorman/Revisit-NUMA-imbalance-tolerance-and-fork-balancing/20201117-214609
base: https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git dc824eb898534cd8e34582874dae3bb7cf2fa008
in testcase: unixbench
on test machine: 96 threads Intel(R) Xeon(R) CPU @ 2.30GHz with 128G memory
with following parameters:
runtime: 300s
nr_task: 30%
test: pipe
cpufreq_governor: performance
ucode: 0x4003003
test-description: UnixBench is the original BYTE UNIX benchmark suite aims to test performance of Unix-like system.
test-url: https://github.com/kdlucas/byte-unixbench
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/nr_task/rootfs/runtime/tbox_group/test/testcase/ucode:
gcc-9/performance/x86_64-rhel-8.3/30%/debian-10.4-x86_64-20200603.cgz/300s/lkp-csl-2sp4/pipe/unixbench/0x4003003
commit:
b619be42c0 ("sched/numa: Allow a floating imbalance between NUMA nodes")
e7f28850ea ("sched/numa: Limit the amount of imbalance that can exist at fork time")
b619be42c0eab221 e7f28850eadc14c0976f7872f2d
---------------- ---------------------------
%stddev %change %stddev
\ | \
41663 +1.5% 42289 unixbench.score
17225 -2.7% 16754 unixbench.time.involuntary_context_switches
2.025e+10 +1.4% 2.054e+10 unixbench.workload
0.30 ±101% +0.3 0.65 ± 8% perf-profile.calltrace.cycles-pp.__entry_text_start.read
0.38 ± 13% +0.1 0.46 ± 10% perf-profile.self.cycles-pp.write
7969 ± 6% +13.7% 9064 ± 7% numa-vmstat.node0.nr_kernel_stack
9007 ± 5% -11.6% 7966 ± 8% numa-vmstat.node1.nr_kernel_stack
11370 ± 14% -18.2% 9295 ± 12% numa-vmstat.node1.nr_slab_reclaimable
7971 ± 6% +13.7% 9063 ± 7% numa-meminfo.node0.KernelStack
45482 ± 14% -18.2% 37186 ± 12% numa-meminfo.node1.KReclaimable
9000 ± 5% -11.4% 7974 ± 8% numa-meminfo.node1.KernelStack
45482 ± 14% -18.2% 37186 ± 12% numa-meminfo.node1.SReclaimable
27.83 ± 5% -20.4% 22.16 ± 12% sched_debug.cfs_rq:/.load_avg.avg
260.86 ± 7% -13.0% 226.86 ± 12% sched_debug.cfs_rq:/.load_avg.max
64.01 ± 30% -77.2% 14.62 ±173% sched_debug.cfs_rq:/.removed.runnable_avg.max
64.01 ± 30% -77.2% 14.62 ±173% sched_debug.cfs_rq:/.removed.util_avg.max
140029 ± 6% -15.5% 118380 ± 9% sched_debug.cpu.avg_idle.stddev
6.87 ±117% -70.0% 2.06 ± 5% perf-stat.i.MPKI
2.058e+10 +1.6% 2.092e+10 perf-stat.i.branch-instructions
1.776e+08 +1.5% 1.802e+08 perf-stat.i.branch-misses
3.084e+10 +1.6% 3.134e+10 perf-stat.i.dTLB-loads
1.937e+10 +1.6% 1.968e+10 perf-stat.i.dTLB-stores
1.831e+08 +2.0% 1.868e+08 perf-stat.i.iTLB-load-misses
1.025e+11 +1.6% 1.042e+11 perf-stat.i.instructions
1.28 +2.0% 1.31 perf-stat.i.ipc
737.53 +1.6% 749.52 perf-stat.i.metric.M/sec
0.67 -1.3% 0.66 perf-stat.overall.cpi
1.49 +1.3% 1.51 perf-stat.overall.ipc
2.056e+10 +1.6% 2.089e+10 perf-stat.ps.branch-instructions
1.774e+08 +1.4% 1.8e+08 perf-stat.ps.branch-misses
3.08e+10 +1.6% 3.13e+10 perf-stat.ps.dTLB-loads
1.935e+10 +1.6% 1.965e+10 perf-stat.ps.dTLB-stores
1.829e+08 +2.0% 1.865e+08 perf-stat.ps.iTLB-load-misses
1.024e+11 +1.6% 1.04e+11 perf-stat.ps.instructions
4.017e+13 +1.7% 4.085e+13 perf-stat.total.instructions
40627 ± 4% +9.9% 44633 ± 2% softirqs.CPU10.SCHED
40722 +7.9% 43959 ± 3% softirqs.CPU11.SCHED
14454 ± 5% +16.4% 16827 ± 8% softirqs.CPU15.RCU
14800 ± 8% +21.4% 17968 ± 10% softirqs.CPU16.RCU
15254 ± 7% +16.9% 17835 ± 7% softirqs.CPU17.RCU
14676 ± 11% +19.3% 17502 ± 8% softirqs.CPU18.RCU
15098 ± 6% +15.7% 17472 ± 8% softirqs.CPU19.RCU
14311 ± 5% +23.0% 17595 ± 6% softirqs.CPU21.RCU
15728 ± 3% +14.2% 17965 ± 10% softirqs.CPU22.RCU
15758 ± 6% +14.3% 18005 ± 8% softirqs.CPU23.RCU
15700 +14.8% 18018 ± 6% softirqs.CPU49.RCU
15386 ± 3% +15.4% 17757 ± 8% softirqs.CPU50.RCU
16064 ± 3% +14.9% 18455 ± 8% softirqs.CPU52.RCU
16072 ± 3% +19.5% 19200 ± 4% softirqs.CPU54.RCU
16371 ± 4% +12.9% 18479 ± 5% softirqs.CPU58.RCU
15825 ± 3% +14.5% 18116 ± 6% softirqs.CPU59.RCU
16359 ± 5% +13.6% 18592 ± 7% softirqs.CPU60.RCU
16020 ± 7% +14.7% 18370 ± 7% softirqs.CPU62.RCU
15940 ± 6% +17.6% 18740 ± 8% softirqs.CPU63.RCU
15520 ± 4% +25.0% 19403 ± 7% softirqs.CPU64.RCU
16212 ± 8% +19.4% 19354 ± 11% softirqs.CPU65.RCU
16164 ± 7% +19.1% 19247 ± 9% softirqs.CPU67.RCU
16678 ± 6% +17.5% 19592 ± 9% softirqs.CPU68.RCU
16328 ± 6% +19.7% 19551 ± 6% softirqs.CPU69.RCU
16351 ± 4% +17.2% 19155 ± 7% softirqs.CPU70.RCU
15636 ± 2% +11.1% 17370 ± 6% softirqs.CPU72.RCU
15764 +13.9% 17949 ± 7% softirqs.CPU75.RCU
15899 ± 3% +13.3% 18015 ± 7% softirqs.CPU76.RCU
16157 ± 4% +11.2% 17967 ± 8% softirqs.CPU77.RCU
15480 ± 2% +14.4% 17716 ± 10% softirqs.CPU91.RCU
16142 +10.9% 17893 ± 7% softirqs.CPU93.RCU
16424 ± 3% +12.7% 18503 ± 7% softirqs.CPU95.RCU
38301 ± 7% -12.0% 33723 ± 8% softirqs.CPU95.SCHED
1550393 ± 2% +10.6% 1714970 ± 6% softirqs.RCU
56868 -4.8% 54162 interrupts.CAL:Function_call_interrupts
788.75 ± 25% -30.4% 548.75 ± 15% interrupts.CPU1.CAL:Function_call_interrupts
120.75 ± 37% -56.5% 52.50 ± 41% interrupts.CPU10.RES:Rescheduling_interrupts
498.50 ± 9% -12.7% 435.25 ± 2% interrupts.CPU12.CAL:Function_call_interrupts
94.50 ± 14% -51.6% 45.75 ± 37% interrupts.CPU12.RES:Rescheduling_interrupts
658.25 ± 27% -32.4% 445.25 ± 2% interrupts.CPU14.CAL:Function_call_interrupts
613.75 ± 24% -33.6% 407.50 ± 22% interrupts.CPU2.CAL:Function_call_interrupts
626.25 ± 19% -26.8% 458.25 ± 5% interrupts.CPU23.CAL:Function_call_interrupts
851.00 ± 19% -30.7% 590.00 ± 6% interrupts.CPU25.CAL:Function_call_interrupts
474.75 ± 4% +16.4% 552.50 ± 7% interrupts.CPU32.CAL:Function_call_interrupts
58.75 ± 10% +59.6% 93.75 ± 13% interrupts.CPU36.RES:Rescheduling_interrupts
73.00 ± 29% +111.0% 154.00 ± 59% interrupts.CPU37.RES:Rescheduling_interrupts
3002 ± 43% -85.0% 449.25 ±112% interrupts.CPU40.NMI:Non-maskable_interrupts
3002 ± 43% -85.0% 449.25 ±112% interrupts.CPU40.PMI:Performance_monitoring_interrupts
3355 ± 28% -77.4% 757.50 ± 93% interrupts.CPU42.NMI:Non-maskable_interrupts
3355 ± 28% -77.4% 757.50 ± 93% interrupts.CPU42.PMI:Performance_monitoring_interrupts
3557 ± 29% -51.7% 1718 ± 61% interrupts.CPU46.NMI:Non-maskable_interrupts
3557 ± 29% -51.7% 1718 ± 61% interrupts.CPU46.PMI:Performance_monitoring_interrupts
2004 ± 43% -55.9% 884.75 ± 80% interrupts.CPU61.NMI:Non-maskable_interrupts
2004 ± 43% -55.9% 884.75 ± 80% interrupts.CPU61.PMI:Performance_monitoring_interrupts
609.25 ± 88% +496.3% 3632 ± 64% interrupts.CPU62.NMI:Non-maskable_interrupts
609.25 ± 88% +496.3% 3632 ± 64% interrupts.CPU62.PMI:Performance_monitoring_interrupts
52.75 ± 56% +133.2% 123.00 ± 42% interrupts.CPU63.RES:Rescheduling_interrupts
441.25 ± 78% +744.6% 3727 ± 64% interrupts.CPU69.NMI:Non-maskable_interrupts
441.25 ± 78% +744.6% 3727 ± 64% interrupts.CPU69.PMI:Performance_monitoring_interrupts
48.50 ± 58% +152.6% 122.50 ± 37% interrupts.CPU69.RES:Rescheduling_interrupts
408.25 ± 74% +610.8% 2901 ± 67% interrupts.CPU70.NMI:Non-maskable_interrupts
408.25 ± 74% +610.8% 2901 ± 67% interrupts.CPU70.PMI:Performance_monitoring_interrupts
57.00 ± 68% +95.6% 111.50 ± 32% interrupts.CPU70.RES:Rescheduling_interrupts
57.00 ± 45% +120.2% 125.50 ± 30% interrupts.CPU71.RES:Rescheduling_interrupts
712.50 ± 24% -34.3% 468.00 ± 7% interrupts.CPU75.CAL:Function_call_interrupts
1236 ±111% +258.1% 4426 ± 20% interrupts.CPU75.NMI:Non-maskable_interrupts
1236 ±111% +258.1% 4426 ± 20% interrupts.CPU75.PMI:Performance_monitoring_interrupts
1953 ± 42% -84.3% 306.75 ±108% interrupts.CPU88.NMI:Non-maskable_interrupts
1953 ± 42% -84.3% 306.75 ±108% interrupts.CPU88.PMI:Performance_monitoring_interrupts
1077 ± 39% -47.5% 565.50 ± 11% interrupts.CPU90.CAL:Function_call_interrupts
unixbench.score
42600 +-------------------------------------------------------------------+
| O O O O O |
42400 |-+ |
| O O O O O O O O |
| O O O O O O O O |
42200 |-+ |
| |
42000 |-+ |
| |
41800 |.+ .+. .+. .+.+ |
| +.+.+. .+.+ +. + +.+ : .+.+. .+.|
| + +. + : .+.+. .+ +.+.+.+ |
41600 |-+ + :.+. .+.+ +.+ |
| + + |
41400 +-------------------------------------------------------------------+
unixbench.workload
2.08e+10 +----------------------------------------------------------------+
| |
2.07e+10 |-+ O O |
| O O O |
2.06e+10 |-+ O OO O O O |
| O O O O O O O |
2.05e+10 |-+ O O O O |
| |
2.04e+10 |-+ |
| .+.+ |
2.03e+10 |++ .+. .++.+. .+.+.+ : .+.+ +.|
| +.+ + +. + : +.+ +.+ : .+. + |
2.02e+10 |-+ +. + ++.+.+. + + + +.+ + |
| + + + |
2.01e+10 +----------------------------------------------------------------+
[*] bisect-good sample
[O] bisect-bad sample
Disclaimer:
Results have been estimated based on internal Intel analysis and are provided
for informational purposes only. Any difference in system hardware or software
design or configuration may affect actual performance.
Thanks,
Oliver Sang
View attachment "config-5.10.0-rc1-00071-ge7f28850eadc" of type "text/plain" (170389 bytes)
View attachment "job-script" of type "text/plain" (8021 bytes)
View attachment "job.yaml" of type "text/plain" (5442 bytes)
View attachment "reproduce" of type "text/plain" (290 bytes)
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