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: 74cbb3898012216597c4a7200d356473b5cbde97 ("locking/mutex: Enable optimistic spinning of woken task in wait queue") git://anongit.freedesktop.org/drm-intel topic/core-for-CI in testcase: fsmark on test machine: 48 threads Intel(R) Xeon(R) CPU E5-2697 v2 @ 2.70GHz with 64G memory with following parameters: iterations: 1x nr_threads: 64t disk: 1BRD_48G fs: f2fs filesize: 4M test_size: 40G sync_method: fsyncBeforeClose cpufreq_governor: performance test-description: The fsmark is a file system benchmark to test synchronous write workloads, for example, mail servers workload. test-url: https://sourceforge.net/projects/fsmark/ 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: fsmark/1x-64t-1BRD_48G-f2fs-4M-40G-fsyncBeforeClose-performance/ivb44 e05c8f4658ee72c0 74cbb3898012216597c4a7200d ---------------- -------------------------- %stddev change %stddev \ | \ 7419 ± 8% 120% 16296 ± 4% fsmark.time.involuntary_context_switches 2063200 -77% 474914 fsmark.time.voluntary_context_switches 386575 25% 484879 ± 8% fsmark.app_overhead 271 -6% 256 fsmark.files_per_sec 934 ± 3% 66% 1546 fsmark.time.system_time 2450 ± 3% 56% 3834 fsmark.time.percent_of_cpu_this_job_got 35466 24% 44060 fsmark.time.minor_page_faults 62685 ± 7% 47% 92056 ± 12% interrupts.CAL:Function_call_interrupts 1031607 -5% 977505 vmstat.io.bo 103565 -77% 23649 vmstat.system.cs 1540 ± 3% 53% 2362 turbostat.Avg_MHz 51.49 ± 3% 53% 78.99 turbostat.%Busy 135 11% 150 turbostat.CorWatt 168 9% 182 turbostat.PkgWatt 7.87 -6% 7.39 turbostat.RAMWatt 348 ± 5% 7e+03 7782 ± 32% latency_stats.max.call_rwsem_down_read_failed.f2fs_submit_merged_bio_cond.[f2fs].f2fs_write_cache_pages.[f2fs].f2fs_write_data_pages.[f2fs].do_writepages.__filemap_fdatawrite_range.filemap_write_and_wait_range.f2fs_do_sync_file.[f2fs].f2fs_sync_file.[f2fs].vfs_fsync_range.do_fsync.SyS_fsync 1240194 ± 25% 1e+07 15121836 ± 17% latency_stats.sum.call_rwsem_down_read_failed.get_node_info.[f2fs].write_data_page.[f2fs].do_write_data_page.[f2fs].f2fs_write_data_page.[f2fs].f2fs_write_cache_pages.[f2fs].f2fs_write_data_pages.[f2fs].do_writepages.__filemap_fdatawrite_range.filemap_write_and_wait_range.f2fs_do_sync_file.[f2fs].f2fs_sync_file.[f2fs] 29432 ± 25% 1e+05 134088 ± 17% latency_stats.sum.call_rwsem_down_write_failed.set_node_addr.[f2fs].new_node_page.[f2fs].get_dnode_of_data.[f2fs].f2fs_map_blocks.[f2fs].f2fs_preallocate_blocks.[f2fs].f2fs_file_write_iter.[f2fs].__vfs_write.vfs_write.SyS_write.entry_SYSCALL_64_fastpath 4665 ± 47% 8e+04 86855 ± 23% latency_stats.sum.call_rwsem_down_write_failed.set_node_addr.[f2fs].f2fs_write_node_page.[f2fs].fsync_node_pages.[f2fs].f2fs_do_sync_file.[f2fs].f2fs_sync_file.[f2fs].vfs_fsync_range.do_fsync.SyS_fsync.entry_SYSCALL_64_fastpath 11898 ± 9% 5e+04 61422 ± 17% latency_stats.sum.call_rwsem_down_write_failed.set_node_addr.[f2fs].new_node_page.[f2fs].new_inode_page.[f2fs].init_inode_metadata.[f2fs].f2fs_add_regular_entry.[f2fs].__f2fs_do_add_link.[f2fs].__f2fs_add_link.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open 1258 ± 68% 5e+04 49298 ± 26% latency_stats.sum.call_rwsem_down_write_failed.get_node_info.[f2fs].new_node_page.[f2fs].new_inode_page.[f2fs].init_inode_metadata.[f2fs].f2fs_add_regular_entry.[f2fs].__f2fs_do_add_link.[f2fs].__f2fs_add_link.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open 473 ± 87% 1e+04 12720 ± 23% latency_stats.sum.call_rwsem_down_read_failed.get_node_info.[f2fs].f2fs_write_node_page.[f2fs].fsync_node_pages.[f2fs].f2fs_do_sync_file.[f2fs].f2fs_sync_file.[f2fs].vfs_fsync_range.do_fsync.SyS_fsync.entry_SYSCALL_64_fastpath 116 ± 69% 9e+03 9609 ± 25% latency_stats.sum.call_rwsem_down_read_failed.is_checkpointed_node.[f2fs].f2fs_do_sync_file.[f2fs].f2fs_sync_file.[f2fs].vfs_fsync_range.do_fsync.SyS_fsync.entry_SYSCALL_64_fastpath 298 ± 47% 7e+03 7496 ± 31% latency_stats.sum.call_rwsem_down_read_failed.need_inode_block_update.[f2fs].f2fs_do_sync_file.[f2fs].f2fs_sync_file.[f2fs].vfs_fsync_range.do_fsync.SyS_fsync.entry_SYSCALL_64_fastpath 9165016 ± 76% -5e+06 3994495 ± 26% latency_stats.sum.f2fs_sync_fs.[f2fs].f2fs_do_sync_file.[f2fs].f2fs_sync_file.[f2fs].vfs_fsync_range.do_fsync.SyS_fsync.entry_SYSCALL_64_fastpath 47073 ± 6% 208% 144866 ± 4% perf-stat.cpu-migrations 51080 ± 5% 110% 107239 ± 3% perf-stat.instructions-per-iTLB-miss 2.994e+12 ± 4% 57% 4.697e+12 perf-stat.cpu-cycles 3.036e+11 ± 3% 44% 4.362e+11 perf-stat.branch-instructions 3.139e+11 ± 6% 43% 4.498e+11 perf-stat.dTLB-loads 1.145e+12 ± 3% 40% 1.602e+12 perf-stat.instructions 127842 12% 143318 perf-stat.minor-faults 127867 12% 143338 perf-stat.page-faults 1.304e+09 1.281e+09 perf-stat.node-stores 6.531e+08 6.338e+08 perf-stat.node-load-misses 4.765e+09 -3% 4.609e+09 perf-stat.cache-references 49.05 -3% 47.40 perf-stat.cache-miss-rate% 9.865e+08 -4% 9.51e+08 perf-stat.node-loads 39.26 -6% 36.71 perf-stat.iTLB-load-miss-rate% 2.337e+09 -7% 2.184e+09 perf-stat.cache-misses 0.38 -11% 0.34 perf-stat.ipc 34728336 -26% 25779325 perf-stat.iTLB-loads 0.61 ± 3% -31% 0.42 perf-stat.dTLB-load-miss-rate% 0.15 ± 5% -32% 0.10 perf-stat.branch-miss-rate% 22445130 -33% 14955093 ± 3% perf-stat.iTLB-load-misses 4209598 -76% 1007929 perf-stat.context-switches perf-stat.context-switches 4.5e+06 ++---*--*-----------------*--------*----**--------*-------*-------+ *.** * * *.*.* *.**.* *.* *.**.* *.**.* *.*. *.* 4e+06 ++ : : * | 3.5e+06 ++ : : | | * .*. : | 3e+06 ++ * **.* | | | 2.5e+06 ++ | | | 2e+06 ++ | 1.5e+06 ++ | O O O O O O O | 1e+06 ++ O O O OO O O O O O O OO O OO O OO O OO O OO OO O | | | 500000 ++----------------------------------------------------------------+ perf-stat.branch-miss-rate_ 0.18 ++-------------------------------------------------------------------+ | *. * | 0.17 ++ : * : : | 0.16 ++ : + *. : : * * | | *. : * *. * *. .** : * *. + : :+| 0.15 ++* + *. * * .*. + *. .*. : * *. *. + *. .*. : * :: * 0.14 *+ * * * * * * * * * * * | | | 0.13 ++ | 0.12 ++ | | O O | 0.11 O+ OO O O O O | 0.1 ++ O O O O O O O O O O OO O O O | | O O O O OO OO OO | 0.09 ++-O-----------------------------------------------------------------+ fsmark.time.voluntary_context_switches 2.2e+06 ++---*--*-----------------*--------*----**--------*-------*-------+ *.** * * *.*.* *.**.* *.* *.**.* *.**.* *.*. *.* 2e+06 ++ : : * | 1.8e+06 ++ : : | | : .* : | 1.6e+06 ++ ** + *.: | 1.4e+06 ++ * * | | | 1.2e+06 ++ | 1e+06 ++ | | | 800000 ++ | 600000 ++ | O O O OO O O O OO OO O OO O OO O OO O OO O OO O OO O | 400000 ++-O--------O----------------------------------------O--O---------+ [*] 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, Ying Huang