Greeting, FYI, we noticed a -18.0% regression of aim7.jobs-per-min due to commit: commit: c0cef30e4ff0dc025f4a1660b8f0ba43ed58426e ("iversion: make inode_cmp_iversion{+raw} return bool instead of s64") 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: 4BRD_12G md: RAID0 fs: xfs test: disk_src 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/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/disk/fs/kconfig/load/md/rootfs/tbox_group/test/testcase: gcc-7/performance/4BRD_12G/xfs/x86_64-rhel-7.2/3000/RAID0/debian-x86_64-2016-08-31.cgz/lkp-ivb-ep01/disk_src/aim7 commit: 3da90b159b (" f2fs-for-4.16-rc1") c0cef30e4f ("iversion: make inode_cmp_iversion{+raw} return bool instead of s64") 3da90b159b146672 c0cef30e4ff0dc025f4a1660b8 ---------------- -------------------------- %stddev %change %stddev \ | \ 40183 -18.0% 32964 aim7.jobs-per-min 448.60 +21.9% 546.68 aim7.time.elapsed_time 448.60 +21.9% 546.68 aim7.time.elapsed_time.max 5615 ± 5% +33.4% 7489 ± 4% aim7.time.involuntary_context_switches 3086 +14.0% 3518 aim7.time.system_time 19439782 -5.6% 18359474 aim7.time.voluntary_context_switches 199333 +14.3% 227794 ± 2% interrupts.CAL:Function_call_interrupts 0.59 -0.1 0.50 mpstat.cpu.usr% 2839401 +16.0% 3293688 softirqs.SCHED 7600068 +15.1% 8747820 softirqs.TIMER 118.00 ± 43% +98.7% 234.50 ± 15% vmstat.io.bo 87840 -22.4% 68154 vmstat.system.cs 552798 ± 6% +15.8% 640107 ± 4% numa-numastat.node0.local_node 557345 ± 6% +15.7% 644666 ± 4% numa-numastat.node0.numa_hit 528341 ± 7% +21.7% 642933 ± 4% numa-numastat.node1.local_node 531604 ± 7% +21.6% 646209 ± 4% numa-numastat.node1.numa_hit 2.147e+09 -12.4% 1.88e+09 cpuidle.C1.time 13702041 -14.7% 11683737 cpuidle.C1.usage 2.082e+08 ± 4% +28.1% 2.667e+08 ± 5% cpuidle.C1E.time 4.719e+08 ± 2% +23.1% 5.807e+08 ± 4% cpuidle.C3.time 1.141e+10 +31.0% 1.496e+10 cpuidle.C6.time 15672622 +27.8% 20031028 cpuidle.C6.usage 13520572 ± 3% +29.5% 17514398 ± 9% cpuidle.POLL.time 278.25 ± 5% -46.0% 150.25 ± 73% numa-vmstat.node0.nr_dirtied 3200 ± 14% -20.6% 2542 ± 19% numa-vmstat.node0.nr_mapped 277.75 ± 5% -46.2% 149.50 ± 73% numa-vmstat.node0.nr_written 28.50 ± 52% +448.2% 156.25 ± 70% numa-vmstat.node1.nr_dirtied 2577 ± 19% +26.3% 3255 ± 15% numa-vmstat.node1.nr_mapped 634338 ± 4% +7.8% 683959 ± 4% numa-vmstat.node1.numa_hit 457411 ± 6% +10.8% 506800 ± 5% numa-vmstat.node1.numa_local 3734 ± 8% -11.5% 3306 ± 6% proc-vmstat.numa_hint_faults_local 1114538 +18.3% 1318978 proc-vmstat.numa_hit 1106722 +18.5% 1311136 proc-vmstat.numa_local 22100 +7.5% 23753 ± 4% proc-vmstat.numa_pages_migrated 1174556 +18.0% 1386359 proc-vmstat.pgalloc_normal 1241445 +18.1% 1466086 proc-vmstat.pgfault 1138310 +19.3% 1358132 proc-vmstat.pgfree 22100 +7.5% 23753 ± 4% proc-vmstat.pgmigrate_success 53332 ± 43% +143.0% 129617 ± 14% proc-vmstat.pgpgout 1.42 ± 2% +1.7 3.07 perf-stat.branch-miss-rate% 1.064e+10 +123.3% 2.375e+10 perf-stat.branch-misses 10.79 +0.6 11.43 perf-stat.cache-miss-rate% 5.583e+09 +5.9% 5.915e+09 perf-stat.cache-misses 39652092 -5.0% 37662545 perf-stat.context-switches 1.29 +11.7% 1.44 perf-stat.cpi 4.637e+12 +12.8% 5.23e+12 perf-stat.cpu-cycles 8.653e+11 +9.8% 9.498e+11 ± 2% perf-stat.dTLB-loads 3.654e+11 +12.4% 4.109e+11 perf-stat.dTLB-stores 0.78 -10.5% 0.70 perf-stat.ipc 1214932 +17.9% 1432266 perf-stat.minor-faults 1.334e+09 -1.8% 1.31e+09 perf-stat.node-store-misses 1.651e+09 -1.8% 1.62e+09 perf-stat.node-stores 1214954 +17.9% 1432313 perf-stat.page-faults 256.75 -100.0% 0.00 turbostat.Avg_MHz 21.39 -21.4 0.00 turbostat.Busy% 1200 -100.0% 0.00 turbostat.Bzy_MHz 13695007 -100.0% 0.00 turbostat.C1 11.92 -11.9 0.00 turbostat.C1% 2116683 ± 2% -100.0% 0.00 turbostat.C1E 1.16 ± 4% -1.2 0.00 turbostat.C1E% 3112269 -100.0% 0.00 turbostat.C3 2.62 ± 2% -2.6 0.00 turbostat.C3% 15671277 -100.0% 0.00 turbostat.C6 63.38 -63.4 0.00 turbostat.C6% 49.46 -100.0% 0.00 turbostat.CPU%c1 1.42 ± 2% -100.0% 0.00 turbostat.CPU%c3 27.73 -100.0% 0.00 turbostat.CPU%c6 31.41 -100.0% 0.00 turbostat.CorWatt 63.25 -100.0% 0.00 turbostat.CoreTmp 18919351 -100.0% 0.00 turbostat.IRQ 1.21 ± 18% -100.0% 0.00 turbostat.Pkg%pc2 0.67 ± 31% -100.0% 0.00 turbostat.Pkg%pc6 63.25 -100.0% 0.00 turbostat.PkgTmp 57.63 -100.0% 0.00 turbostat.PkgWatt 30.73 -100.0% 0.00 turbostat.RAMWatt 36030 -100.0% 0.00 turbostat.SMI 3000 -100.0% 0.00 turbostat.TSC_MHz aim7.jobs-per-min 41000 +-+-----------------------------------------------------------------+ | ..+....+.... ..+....+....+.... ..+....+....+...+.... | 40000 +-+ +. +.. + | 39000 +-+ | | | 38000 +-+ | 37000 +-+ | | | 36000 +-+ | 35000 +-+ | | | 34000 +-+ | 33000 +-+ O O | O O O O O O O O O O O O O 32000 +-+-----------------------------------------------------------------+ [*] 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