Greeting, There is no primary kpi change in this test, below is the data collected through multiple monitors running background just for your information. commit: d23adb3ff8010dfb621cd51de668910978fc96ee ("locking/mutex: Enable optimistic spinning of woken task in wait queue") git://anongit.freedesktop.org/drm-intel topic/core-for-CI 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: 4BRD_12G md: RAID1 fs: ext4 test: creat-clo load: 1000 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 git://git.kernel.org/pub/scm/linux/kernel/git/wfg/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: aim7/4BRD_12G-RAID1-ext4-creat-clo-1000-performance/lkp-ivb-ep01 e646d060aec4c266 d23adb3ff8010dfb621cd51de6 ---------------- -------------------------- fail:runs %reproduction fail:runs | | | %stddev %change %stddev \ | \ 273433 ± 1% -12.9% 238072 ± 3% aim7.time.involuntary_context_switches 9453 ± 2% +3.9% 9820 ± 2% aim7.time.system_time 1936827 ± 1% -68.1% 617338 ± 4% aim7.time.voluntary_context_switches 15115 ± 10% -11.9% 13318 ± 3% slabinfo.kmalloc-32.active_objs 160965 ± 5% +11.4% 179391 ± 2% meminfo.Active(anon) 42397 ± 22% +35.7% 57520 ± 3% meminfo.Shmem 7514 ± 88% -56.1% 3302 ± 2% numa-meminfo.node1.KernelStack 45262 ± 25% -21.4% 35566 ± 3% numa-meminfo.node1.SUnreclaim 273433 ± 1% -12.9% 238072 ± 3% time.involuntary_context_switches 1936827 ± 1% -68.1% 617338 ± 4% time.voluntary_context_switches 85.77 ± 0% +4.6% 89.76 ± 0% turbostat.%Busy aim7.time.voluntary_context_switches 2e+06 ++----*------------------------------------*------*-*-----*---*---* 1.8e+06 ++*.* *.*.*.*.**.*.*.*.*.*.*.*.*.*.*.*.* *.*.* *.* * * | | : | 1.6e+06 ++: | 1.4e+06 ++: | |: | 1.2e+06 ++ | 1e+06 ++ | 800000 ++ | O:O O O O O O O OO O O O O O O O | 600000 ++ O O O O O O O O O O OO O O O O | 400000 ++ | | | 200000 ++ | 0 *+----------------------------------------------------------------+ [*] 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