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Fri, 20 Oct 2023 00:03:58 -0700 (PDT) Hello, kernel test robot noticed a -40.3% regression of filebench.sum_operations/s on: commit: cbc06310c36f73a5f3b0c6f0d974d60cf66d816b ("xfs: reinstate the old i_version counter as STATX_CHANGE_COOKIE") https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master testcase: filebench test machine: 96 threads 2 sockets Intel(R) Xeon(R) Platinum 8260L CPU @ 2.40GHz (Cascade Lake) with 128G memory parameters: disk: 1HDD fs: xfs fs2: nfsv4 test: filemicro_rread.f cpufreq_governor: performance If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-lkp/202310201455.d9efae-oliver.sang@intel.com Details are as below: --------------------------------------------------------------------------------------------------> The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20231020/202310201455.d9efae-oliver.sang@intel.com ========================================================================================= compiler/cpufreq_governor/disk/fs2/fs/kconfig/rootfs/tbox_group/test/testcase: gcc-12/performance/1HDD/nfsv4/xfs/x86_64-rhel-8.3/debian-11.1-x86_64-20220510.cgz/lkp-csl-2sp3/filemicro_rread.f/filebench commit: f93b930030 ("xfs: Remove duplicate include") cbc06310c3 ("xfs: reinstate the old i_version counter as STATX_CHANGE_COOKIE") f93b9300301d30f2 cbc06310c36f73a5f3b0c6f0d97 ---------------- --------------------------- %stddev %change %stddev \ | \ 0.05 ? 3% +0.0 0.05 ? 6% mpstat.cpu.all.sys% 1801 ? 3% +192.8% 5272 ? 5% vmstat.system.cs 34136 ? 3% +47.7% 50422 ? 5% meminfo.Active 264.26 ? 11% +6281.8% 16864 ? 20% meminfo.Active(file) 22783 ? 7% +1234.4% 304018 ? 7% turbostat.C1 0.03 ? 17% +0.0 0.06 ? 11% turbostat.C1% 60181 ? 10% +93.2% 116249 ? 7% turbostat.POLL 68.91 +1.0% 69.58 turbostat.PkgWatt 64.00 -40.2% 38.24 ? 13% filebench.sum_bytes_mb/s 32765 -40.3% 19568 ? 13% filebench.sum_operations/s 32765 -40.3% 19568 ? 13% filebench.sum_reads/s 0.00 ? 33% +1911.1% 0.03 ? 19% filebench.sum_time_ms/op 20275 ? 31% +269.7% 74961 ? 8% filebench.time.voluntary_context_switches 65.23 ? 10% +6225.9% 4126 ? 16% proc-vmstat.nr_active_file 517254 -1.5% 509753 proc-vmstat.nr_inactive_file 65.23 ? 10% +6225.9% 4126 ? 16% proc-vmstat.nr_zone_active_file 517254 -1.5% 509753 proc-vmstat.nr_zone_inactive_file 1199999 +24.8% 1497636 proc-vmstat.numa_hit 13948 +1878.7% 276000 proc-vmstat.pgactivate 1767189 +17.2% 2070794 proc-vmstat.pgalloc_normal 1733917 +17.5% 2037105 proc-vmstat.pgfree 1.462e+08 +4.8% 1.532e+08 perf-stat.i.branch-instructions 1683 ? 3% +210.4% 5224 ? 5% perf-stat.i.context-switches 1.943e+08 +4.9% 2.038e+08 perf-stat.i.dTLB-loads 98635751 +5.4% 1.039e+08 perf-stat.i.dTLB-stores 177093 +18.5% 209883 ? 3% perf-stat.i.iTLB-loads 7.228e+08 +4.5% 7.552e+08 perf-stat.i.instructions 3.91 ? 3% +6.2% 4.15 ? 2% perf-stat.i.metric.M/sec 10.86 -0.5 10.34 perf-stat.overall.branch-miss-rate% 6.91 ? 2% -3.6% 6.66 perf-stat.overall.cpi 80.11 -2.6 77.55 perf-stat.overall.iTLB-load-miss-rate% 1012 +2.9% 1042 ? 2% perf-stat.overall.instructions-per-iTLB-miss 1.455e+08 +4.8% 1.524e+08 perf-stat.ps.branch-instructions 1674 ? 3% +209.9% 5188 ? 5% perf-stat.ps.context-switches 1.933e+08 +4.9% 2.028e+08 perf-stat.ps.dTLB-loads 98135969 +5.3% 1.034e+08 perf-stat.ps.dTLB-stores 176255 +18.5% 208779 ? 3% perf-stat.ps.iTLB-loads 7.19e+08 +4.5% 7.512e+08 perf-stat.ps.instructions 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. -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki