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Date: Thu, 10 Aug 2017 09:39:20 +0800 From: kernel test robot <xiaolong.ye@...el.com> To: Brian Foster <bfoster@...hat.com> Cc: "Darrick J. Wong" <darrick.wong@...cle.com>, LKML <linux-kernel@...r.kernel.org>, Linus Torvalds <torvalds@...ux-foundation.org>, lkp@...org Subject: [lkp-robot] [xfs] e2f2342639: aim7.jobs-per-min 8.2% improvement Greeting, FYI, we noticed a 8.2% improvement of aim7.jobs-per-min due to commit: commit: e2f2342639a414b60de3876a8b437eac2b795dbe ("xfs: refactor xlog_cil_insert_items() to facilitate transaction dump") https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master in testcase: aim7 on test machine: 40 threads Intel(R) Xeon(R) CPU E5-2690 v2 @ 3.00GHz with 384G memory with following parameters: disk: 1BRD_48G fs: xfs test: disk_cp load: 3000 cpufreq_governor: performance test-description: AIM7 is a traditional UNIX system level benchmark suite which is used to test and measure the performance of multiuser system. test-url: https://sourceforge.net/projects/aimbench/files/aim-suite7/ Details are as below: --------------------------------------------------------------------------------------------------> To reproduce: git clone https://github.com/01org/lkp-tests.git cd lkp-tests bin/lkp install job.yaml # job file is attached in this email bin/lkp run job.yaml testcase/path_params/tbox_group/run: aim7/1BRD_48G-xfs-disk_cp-3000-performance/lkp-ivb-ep01 7d2d5653460443e0 e2f2342639a414b60de3876a8b ---------------- -------------------------- %stddev change %stddev \ | \ 80127 8% 86664 aim7.jobs-per-min 225 -8% 208 aim7.time.elapsed_time 225 -8% 208 aim7.time.elapsed_time.max 8212 -8% 7536 aim7.time.system_time 430021 ± 4% -12% 379972 ± 4% aim7.time.involuntary_context_switches 0.26 0.27 perf-stat.ipc 3.80 3.72 perf-stat.cpi 1.803e+12 -6% 1.695e+12 perf-stat.dTLB-loads 6.486e+12 -6% 6.081e+12 perf-stat.instructions 1.423e+12 -7% 1.322e+12 perf-stat.branch-instructions 2.463e+13 -8% 2.262e+13 perf-stat.cpu-cycles 66.00 ± 27% -44% 37.19 ± 20% perf-stat.iTLB-load-miss-rate% aim7.jobs-per-min 89000 ++O----O-------------------------------------------O----------------+ 88000 O+ O O O | | O O O O O | 87000 ++ O O O | 86000 ++ O O O O O O | 85000 ++ O O | 84000 ++ * * | | : + + : | 83000 ++ *.. : * *.. .*.. + : .*.* * | 82000 ++ : * : : * *. .* *. + + + *.. | 81000 ++ : : : * + .* + .* : | 80000 ++*..*.*.. : : : * * + : *.| * : * + : * 79000 ++ * * | 78000 ++------------------------------------------------------------------+ [*] 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, Xiaolong View attachment "config-4.12.0-rc6-00007-ge2f2342" of type "text/plain" (159256 bytes) View attachment "job-script" of type "text/plain" (7420 bytes) View attachment "job.yaml" of type "text/plain" (5052 bytes) View attachment "reproduce" of type "text/plain" (695 bytes)
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