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0UWQxjUAIT52nx2vJ4MDQLvA/MycwZz2eWQKbDgn91xzyeB5RZrggC1LfvxB3F8SaD8AI7+LAnKx/ccWQbNwRQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH8PR11MB6779 X-OriginatorOrg: intel.com Hello, kernel test robot noticed a -1.7% regression of sysbench-fileio.write_operations/s on: commit: 060406c61c7cb4bbd82a02d179decca9c9bb3443 ("block: add plug while submitting IO") https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master testcase: sysbench-fileio test machine: 128 threads 2 sockets Intel(R) Xeon(R) Platinum 8358 CPU @ 2.60GHz (Ice Lake) with 128G memory parameters: period: 600s nr_threads: 100% disk: 1HDD fs: xfs size: 64G filenum: 1024f rwmode: rndwr iomode: sync 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/202406252157.348c160f-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/20240625/202406252157.348c160f-oliver.sang@intel.com ========================================================================================= compiler/cpufreq_governor/disk/filenum/fs/iomode/kconfig/nr_threads/period/rootfs/rwmode/size/tbox_group/testcase: gcc-13/performance/1HDD/1024f/xfs/sync/x86_64-rhel-8.3/100%/600s/debian-12-x86_64-20240206.cgz/rndwr/64G/lkp-icl-2sp6/sysbench-fileio commit: 3a861560cc ("bcache: fix variable length array abuse in btree_iter") 060406c61c ("block: add plug while submitting IO") 3a861560ccb35f2a 060406c61c7cb4bbd82a02d179d ---------------- --------------------------- %stddev %change %stddev \ | \ 24.53 ± 5% -3.0 21.49 ± 3% mpstat.cpu.all.idle% 52604 ± 70% +99.5% 104921 ± 10% numa-numastat.node1.other_node 24267 ± 4% -10.3% 21772 ± 3% uptime.idle 8218 -1.6% 8084 vmstat.system.cs 24.75 ± 5% -12.3% 21.72 ± 3% iostat.cpu.idle 75.08 +4.0% 78.12 iostat.cpu.iowait 132522 ± 11% +23.4% 163559 ± 6% numa-meminfo.node0.Inactive(file) 237987 ± 6% -15.5% 201059 ± 5% numa-meminfo.node1.Inactive(file) 22.53 ± 11% -6.3 16.22 ± 25% perf-profile.children.cycles-pp.native_flush_tlb_one_user 0.58 ± 29% +0.5 1.05 ± 28% perf-profile.children.cycles-pp.set_pte_vaddr_p4d 22.53 ± 11% -6.3 16.22 ± 25% perf-profile.self.cycles-pp.native_flush_tlb_one_user 0.58 ± 29% +0.5 1.05 ± 28% perf-profile.self.cycles-pp.set_pte_vaddr_p4d 0.03 ± 6% +13.9% 0.03 ± 4% sched_debug.cfs_rq:/.h_nr_running.avg 0.03 ± 6% +13.9% 0.03 ± 4% sched_debug.cfs_rq:/.nr_running.avg -226.99 +41.3% -320.83 sched_debug.cpu.nr_uninterruptible.min 25.90 ± 20% +40.7% 36.44 ± 10% sched_debug.cpu.nr_uninterruptible.stddev 194997 -1.7% 191663 proc-vmstat.nr_dirtied 92615 -1.6% 91119 proc-vmstat.nr_inactive_file 194997 -1.7% 191663 proc-vmstat.nr_written 92615 -1.6% 91119 proc-vmstat.nr_zone_inactive_file 952833 -1.7% 936954 proc-vmstat.pgpgout 1035 -1.4% 1020 sysbench-fileio.fsync_operations/s 140.12 +1.7% 142.56 sysbench-fileio.latency_avg_ms 1559978 -1.7% 1533306 sysbench-fileio.time.file_system_outputs 1497 ± 3% -51.2% 730.50 ± 10% sysbench-fileio.time.involuntary_context_switches 1871907 -1.5% 1843314 sysbench-fileio.time.voluntary_context_switches 1.31 -1.7% 1.29 sysbench-fileio.write_bytes_MB/s 1.25 -1.7% 1.23 sysbench-fileio.write_bytes_MiB/s 80.13 -1.7% 78.74 sysbench-fileio.write_operations/s 71858 ± 7% +18.7% 85272 ± 3% numa-vmstat.node0.nr_dirtied 33121 ± 11% +23.4% 40882 ± 6% numa-vmstat.node0.nr_inactive_file 71858 ± 7% +18.7% 85272 ± 3% numa-vmstat.node0.nr_written 33121 ± 11% +23.4% 40882 ± 6% numa-vmstat.node0.nr_zone_inactive_file 123139 ± 4% -13.6% 106391 ± 2% numa-vmstat.node1.nr_dirtied 59483 ± 6% -15.5% 50254 ± 5% numa-vmstat.node1.nr_inactive_file 123139 ± 4% -13.6% 106391 ± 2% numa-vmstat.node1.nr_written 59483 ± 6% -15.5% 50254 ± 5% numa-vmstat.node1.nr_zone_inactive_file 52604 ± 70% +99.5% 104921 ± 10% numa-vmstat.node1.numa_other 2.55 +4.8% 2.68 perf-stat.i.MPKI 92991408 ± 2% -3.7% 89545806 ± 2% perf-stat.i.branch-instructions 6.14 +0.3 6.41 perf-stat.i.branch-miss-rate% 18893060 -3.6% 18215592 perf-stat.i.cache-references 1.83 +4.9% 1.92 perf-stat.i.cpi 6.848e+08 -2.5% 6.675e+08 ± 2% perf-stat.i.cpu-cycles 214.11 ± 2% -7.2% 198.60 perf-stat.i.cpu-migrations 4.678e+08 ± 2% -3.9% 4.495e+08 ± 2% perf-stat.i.instructions 0.58 -4.3% 0.56 perf-stat.i.ipc 92993821 ± 2% -3.7% 89564915 ± 2% perf-stat.ps.branch-instructions 18876617 -3.6% 18201664 perf-stat.ps.cache-references 6.863e+08 -2.5% 6.692e+08 ± 2% perf-stat.ps.cpu-cycles 213.74 ± 2% -7.2% 198.25 perf-stat.ps.cpu-migrations 4.678e+08 ± 2% -3.9% 4.497e+08 ± 2% perf-stat.ps.instructions 3.003e+11 ± 2% -3.9% 2.887e+11 ± 2% perf-stat.total.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