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Date: Mon, 13 Dec 2021 15:15:22 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Namhyung Kim <namhyung@...gle.com>
Cc: Peter Zijlstra <peterz@...radead.org>,
Namhyung Kim <namhyung@...nel.org>,
LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org,
lkp@...el.com, ying.huang@...el.com, feng.tang@...el.com,
zhengjun.xing@...ux.intel.com, fengwei.yin@...el.com,
guobing.chen@...el.com, ming.a.chen@...el.com, frank.du@...el.com,
Shuhua.Fan@...el.com, wangyang.guo@...el.com,
Wenhuan.Huang@...el.com, jessica.ji@...el.com, shan.kang@...el.com,
guangli.li@...el.com, tiejun.li@...el.com, yu.ma@...el.com,
dapeng1.mi@...el.com, jiebin.sun@...el.com, gengxin.xie@...el.com,
fan.zhao@...el.com
Subject: [perf core] bdacfaf26d:
phoronix-test-suite.tungsten.Non-Exponential.seconds -22.7% improvement
Greeting,
FYI, we noticed a -22.7% improvement of phoronix-test-suite.tungsten.Non-Exponential.seconds due to commit:
commit: bdacfaf26da166dd56c62f23f27a4b3e71f2d89e ("perf core: Add a kmem_cache for struct perf_event")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
in testcase: phoronix-test-suite
on test machine: 96 threads 2 sockets Intel(R) Xeon(R) Gold 6252 CPU @ 2.10GHz with 128G memory
with following parameters:
test: tungsten-1.0.0
option_a: Non-Exponential
cpufreq_governor: performance
ucode: 0x5003006
test-description: The Phoronix Test Suite is the most comprehensive testing and benchmarking platform available that provides an extensible framework for which new tests can be easily added.
test-url: http://www.phoronix-test-suite.com/
Details are as below:
-------------------------------------------------------------------------------------------------->
To reproduce:
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
sudo bin/lkp install job.yaml # job file is attached in this email
bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run
sudo bin/lkp run generated-yaml-file
# if come across any failure that blocks the test,
# please remove ~/.lkp and /lkp dir to run from a clean state.
=========================================================================================
compiler/cpufreq_governor/kconfig/option_a/rootfs/tbox_group/test/testcase/ucode:
gcc-9/performance/x86_64-rhel-8.3/Non-Exponential/debian-x86_64-phoronix/lkp-csl-2sp8/tungsten-1.0.0/phoronix-test-suite/0x5003006
commit:
9483409ab5 ("perf core: Allocate perf_buffer in the target node memory")
bdacfaf26d ("perf core: Add a kmem_cache for struct perf_event")
9483409ab5067941 bdacfaf26da166dd56c62f23f27
---------------- ---------------------------
%stddev %change %stddev
\ | \
4989 ± 2% -9.5% 4516 phoronix-test-suite.time.percent_of_cpu_this_job_got
7.73 ± 12% -22.7% 5.97 phoronix-test-suite.tungsten.Non-Exponential.seconds
441319 ± 48% -75.1% 109832 ±190% numa-meminfo.node1.Shmem
110322 ± 48% -75.1% 27457 ±190% numa-vmstat.node1.nr_shmem
213.04 -4.4% 203.63 turbostat.PkgWatt
47.09 ± 2% +4.4 51.50 mpstat.cpu.all.idle%
1.12 ± 4% +0.4 1.56 ± 8% mpstat.cpu.all.irq%
40260 ± 55% -76.7% 9375 ± 98% numa-numastat.node0.other_node
27885 ± 80% +110.9% 58815 ± 15% numa-numastat.node1.other_node
47.50 ± 3% +9.1% 51.83 vmstat.cpu.id
50.17 ± 3% -9.3% 45.50 ± 2% vmstat.cpu.us
2417 ± 2% +4.7% 2530 vmstat.system.cs
12.83 ±145% -10.2 2.58 ± 11% perf-profile.calltrace.cycles-pp.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
12.83 ±145% -10.2 2.58 ± 11% perf-profile.calltrace.cycles-pp.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
12.83 ±145% -10.2 2.58 ± 11% perf-profile.calltrace.cycles-pp.start_secondary.secondary_startup_64_no_verify
12.87 ±145% -10.2 2.63 ± 11% perf-profile.calltrace.cycles-pp.secondary_startup_64_no_verify
10.96 ±141% -8.5 2.44 ± 12% perf-profile.calltrace.cycles-pp.cpuidle_enter.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
10.89 ±142% -8.5 2.40 ± 12% perf-profile.calltrace.cycles-pp.cpuidle_enter_state.cpuidle_enter.do_idle.cpu_startup_entry.start_secondary
12.83 ±145% -10.2 2.58 ± 11% perf-profile.children.cycles-pp.start_secondary
12.87 ±145% -10.2 2.63 ± 11% perf-profile.children.cycles-pp.secondary_startup_64_no_verify
12.87 ±145% -10.2 2.63 ± 11% perf-profile.children.cycles-pp.cpu_startup_entry
12.87 ±145% -10.2 2.63 ± 11% perf-profile.children.cycles-pp.do_idle
11.00 ±140% -8.5 2.48 ± 12% perf-profile.children.cycles-pp.cpuidle_enter
11.00 ±140% -8.5 2.48 ± 12% perf-profile.children.cycles-pp.cpuidle_enter_state
4.5e+09 ± 10% +17.8% 5.3e+09 perf-stat.i.branch-instructions
67695126 ± 7% +16.2% 78641337 ± 3% perf-stat.i.branch-misses
1.901e+08 ± 4% -12.4% 1.666e+08 ± 3% perf-stat.i.cache-misses
6.443e+08 ± 3% -16.9% 5.354e+08 ± 2% perf-stat.i.cache-references
2264 ± 3% +5.6% 2391 perf-stat.i.context-switches
1.43e+11 -9.1% 1.3e+11 perf-stat.i.cpu-cycles
1208 ± 12% +65.1% 1996 ± 13% perf-stat.i.cycles-between-cache-misses
1.367e+10 ± 11% +18.3% 1.617e+10 perf-stat.i.dTLB-loads
6.539e+09 ± 12% +18.5% 7.749e+09 perf-stat.i.dTLB-stores
4.362e+10 ± 11% +18.3% 5.161e+10 perf-stat.i.instructions
18628 ± 9% +24.9% 23262 ± 3% perf-stat.i.instructions-per-iTLB-miss
0.36 ± 4% +16.8% 0.42 ± 4% perf-stat.i.ipc
1489433 -9.2% 1353122 perf-stat.i.metric.GHz
2.645e+08 ± 11% +17.3% 3.103e+08 perf-stat.i.metric.M/sec
3110511 ± 3% -18.6% 2532907 ± 4% perf-stat.i.node-loads
12603127 ± 13% +23.6% 15575486 perf-stat.i.node-store-misses
15.00 ± 13% -54.5% 6.83 ± 70% perf-stat.overall.MPKI
3.33 ± 12% -50.0% 1.66 ± 70% perf-stat.overall.cpi
1.885e+08 ± 4% -42.5% 1.084e+08 ± 70% perf-stat.ps.cache-misses
6.388e+08 ± 3% -45.3% 3.493e+08 ± 70% perf-stat.ps.cache-references
1.418e+11 ± 2% -40.0% 8.504e+10 ± 70% perf-stat.ps.cpu-cycles
3083897 ± 3% -47.0% 1634468 ± 70% perf-stat.ps.node-loads
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.
---
0DAY/LKP+ Test Infrastructure Open Source Technology Center
https://lists.01.org/hyperkitty/list/lkp@lists.01.org Intel Corporation
Thanks,
Oliver Sang
View attachment "config-5.12.0-rc3-00002-gbdacfaf26da1" of type "text/plain" (169133 bytes)
View attachment "job-script" of type "text/plain" (7400 bytes)
View attachment "job.yaml" of type "text/plain" (4868 bytes)
View attachment "reproduce" of type "text/plain" (300 bytes)
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