FYI, we noticed the below changes on https://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs dev-test commit 957efb0c2144cc5ff1795f43bf2d2ca430eaa227 ("Revert "f2fs: check the node block address of newly allocated nid"") ========================================================================================= compiler/cpufreq_governor/disk/filesize/fs/iterations/kconfig/nr_directories/nr_files_per_directory/nr_threads/rootfs/sync_method/tbox_group/test_size/testcase: gcc-4.9/performance/1HDD/9B/f2fs/1x/x86_64-rhel/16d/256fpd/32t/debian-x86_64-2015-02-07.cgz/fsyncBeforeClose/lkp-ne04/400M/fsmark commit: a51311938e14c17f5a94d30baac9d7bec71f5858 957efb0c2144cc5ff1795f43bf2d2ca430eaa227 a51311938e14c17f 957efb0c2144cc5ff1795f43bf ---------------- -------------------------- %stddev %change %stddev \ | \ 5699822 ± 2% -23.2% 4375176 ± 5% fsmark.app_overhead 1853986 ± 0% +1.0% 1872422 ± 0% fsmark.time.file_system_outputs 60.75 ± 0% -21.4% 47.75 ± 0% fsmark.time.percent_of_cpu_this_job_got 47.56 ± 0% -21.8% 37.18 ± 1% fsmark.time.system_time 1021602 ± 0% -15.1% 867006 ± 0% fsmark.time.voluntary_context_switches 5171 ± 0% +17.5% 6076 ± 1% proc-vmstat.numa_pte_updates 31334 ± 2% -9.1% 28485 ± 3% softirqs.RCU 60.75 ± 0% -21.4% 47.75 ± 0% time.percent_of_cpu_this_job_got 47.56 ± 0% -21.8% 37.18 ± 1% time.system_time 1021602 ± 0% -15.1% 867006 ± 0% time.voluntary_context_switches 6278 ± 0% +1.8% 6390 ± 0% vmstat.io.bo 25379 ± 1% -13.9% 21840 ± 0% vmstat.system.cs 1735 ± 0% -3.6% 1672 ± 0% vmstat.system.in 2341 ±151% +263.3% 8505 ± 0% numa-meminfo.node0.Inactive(anon) 6544 ± 25% +43.9% 9414 ± 0% numa-meminfo.node0.Mapped 2516 ±141% +246.0% 8705 ± 1% numa-meminfo.node0.Shmem 80851 ± 8% -11.5% 71514 ± 1% numa-meminfo.node0.Slab 584.50 ±151% +263.7% 2125 ± 0% numa-vmstat.node0.nr_inactive_anon 1635 ± 25% +43.8% 2352 ± 0% numa-vmstat.node0.nr_mapped 628.25 ±141% +246.3% 2175 ± 1% numa-vmstat.node0.nr_shmem 2080 ± 11% -21.5% 1634 ± 21% numa-vmstat.node0.numa_other 1.173e+08 ± 4% +22.9% 1.441e+08 ± 3% cpuidle.C1-NHM.time 36242421 ± 3% +13.6% 41189247 ± 1% cpuidle.C1E-NHM.time 4.531e+08 ± 2% -22.3% 3.522e+08 ± 2% cpuidle.C3-NHM.time 447937 ± 0% -27.5% 324877 ± 1% cpuidle.C3-NHM.usage 6.434e+08 ± 1% +12.2% 7.221e+08 ± 1% cpuidle.C6-NHM.time 139.75 ± 5% -19.3% 112.75 ± 5% cpuidle.POLL.usage 3.96 ± 0% -18.7% 3.21 ± 1% turbostat.%Busy 88.25 ± 1% -13.6% 76.25 ± 1% turbostat.Avg_MHz 24.30 ± 2% +9.5% 26.61 ± 2% turbostat.CPU%c1 39.26 ± 3% -23.4% 30.08 ± 2% turbostat.CPU%c3 32.49 ± 2% +23.4% 40.10 ± 1% turbostat.CPU%c6 12.66 ± 5% -17.4% 10.46 ± 5% turbostat.Pkg%pc3 58968 ± 0% -100.0% 0.00 ± -1% latency_stats.hits.call_rwsem_down_read_failed.get_node_info.[f2fs].alloc_nid.[f2fs].f2fs_new_inode.[f2fs].f2fs_create.[f2fs].vfs_create.path_openat.do_filp_open.do_sys_open.SyS_open.entry_SYSCALL_64_fastpath 78507 ± 0% -100.0% 0.00 ± -1% latency_stats.hits.call_rwsem_down_write_failed.get_node_info.[f2fs].alloc_nid.[f2fs].f2fs_new_inode.[f2fs].f2fs_create.[f2fs].vfs_create.path_openat.do_filp_open.do_sys_open.SyS_open.entry_SYSCALL_64_fastpath 0.00 ± -1% +Inf% 77032 ± 0% latency_stats.hits.call_rwsem_down_write_failed.get_node_info.[f2fs].new_node_page.[f2fs].new_inode_page.[f2fs].init_inode_metadata.[f2fs].__f2fs_add_link.[f2fs].f2fs_create.[f2fs].vfs_create.path_openat.do_filp_open.do_sys_open.SyS_open 62300 ± 37% -85.0% 9341 ± 28% latency_stats.sum.call_rwsem_down_read_failed.f2fs_mkdir.[f2fs].vfs_mkdir.SyS_mkdir.entry_SYSCALL_64_fastpath 24001862 ± 1% -100.0% 0.00 ± -1% latency_stats.sum.call_rwsem_down_read_failed.get_node_info.[f2fs].alloc_nid.[f2fs].f2fs_new_inode.[f2fs].f2fs_create.[f2fs].vfs_create.path_openat.do_filp_open.do_sys_open.SyS_open.entry_SYSCALL_64_fastpath 80814 ± 5% -100.0% 0.00 ± -1% latency_stats.sum.call_rwsem_down_read_failed.get_node_info.[f2fs].alloc_nid.[f2fs].f2fs_new_inode.[f2fs].f2fs_mkdir.[f2fs].vfs_mkdir.SyS_mkdir.entry_SYSCALL_64_fastpath 251.50 ± 87% +5565.6% 14249 ± 34% latency_stats.sum.call_rwsem_down_write_failed.f2fs_init_extent_tree.[f2fs].f2fs_new_inode.[f2fs].f2fs_create.[f2fs].vfs_create.path_openat.do_filp_open.do_sys_open.SyS_open.entry_SYSCALL_64_fastpath 35549488 ± 1% -100.0% 0.00 ± -1% latency_stats.sum.call_rwsem_down_write_failed.get_node_info.[f2fs].alloc_nid.[f2fs].f2fs_new_inode.[f2fs].f2fs_create.[f2fs].vfs_create.path_openat.do_filp_open.do_sys_open.SyS_open.entry_SYSCALL_64_fastpath 116197 ± 3% -100.0% 0.00 ± -1% latency_stats.sum.call_rwsem_down_write_failed.get_node_info.[f2fs].alloc_nid.[f2fs].f2fs_new_inode.[f2fs].f2fs_mkdir.[f2fs].vfs_mkdir.SyS_mkdir.entry_SYSCALL_64_fastpath 0.00 ± -1% +Inf% 25888690 ± 1% 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_link.[f2fs].f2fs_create.[f2fs].vfs_create.path_openat.do_filp_open.do_sys_open.SyS_open 0.00 ± -1% +Inf% 93688 ± 8% 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_link.[f2fs].f2fs_mkdir.[f2fs].vfs_mkdir.SyS_mkdir.entry_SYSCALL_64_fastpath 4443 ± 20% -39.4% 2691 ± 2% sched_debug.cfs_rq:/.exec_clock.0 1232 ± 12% -24.1% 935.06 ± 5% sched_debug.cfs_rq:/.exec_clock.11 1114 ± 4% -19.8% 894.19 ± 8% sched_debug.cfs_rq:/.exec_clock.13 2510 ± 15% -20.5% 1996 ± 12% sched_debug.cfs_rq:/.exec_clock.4 2238 ± 0% -10.9% 1994 ± 0% sched_debug.cfs_rq:/.exec_clock.avg 1043 ± 1% -17.5% 861.26 ± 6% sched_debug.cfs_rq:/.exec_clock.min 8895 ± 13% -30.2% 6209 ± 1% sched_debug.cfs_rq:/.min_vruntime.0 4162 ± 9% -38.2% 2571 ± 6% sched_debug.cfs_rq:/.min_vruntime.11 3832 ± 4% -28.4% 2742 ± 11% sched_debug.cfs_rq:/.min_vruntime.13 7383 ± 8% -32.7% 4965 ± 25% sched_debug.cfs_rq:/.min_vruntime.3 8619 ± 36% -40.6% 5122 ± 3% sched_debug.cfs_rq:/.min_vruntime.4 11149 ± 40% -56.2% 4887 ± 8% sched_debug.cfs_rq:/.min_vruntime.7 4394 ± 6% -30.0% 3074 ± 7% sched_debug.cfs_rq:/.min_vruntime.8 4383 ± 21% -31.8% 2991 ± 13% sched_debug.cfs_rq:/.min_vruntime.9 6282 ± 1% -21.0% 4963 ± 0% sched_debug.cfs_rq:/.min_vruntime.avg 3475 ± 1% -30.5% 2416 ± 4% sched_debug.cfs_rq:/.min_vruntime.min 16.50 ±131% -92.4% 1.25 ±173% sched_debug.cfs_rq:/.runnable_load_avg.5 -5301 ±-20% -51.4% -2577 ±-23% sched_debug.cfs_rq:/.spread0.12 -5063 ±-22% -39.0% -3089 ±-20% sched_debug.cfs_rq:/.spread0.15 -2654 ±-32% -90.8% -243.56 ±-336% sched_debug.cfs_rq:/.spread0.6 -4501 ±-22% -30.4% -3134 ±-10% sched_debug.cfs_rq:/.spread0.8 15693 ± 8% -11.6% 13871 ± 9% sched_debug.cpu.nr_load_updates.0 10558 ± 3% -13.3% 9151 ± 2% sched_debug.cpu.nr_load_updates.10 10664 ± 1% -14.9% 9070 ± 2% sched_debug.cpu.nr_load_updates.11 10412 ± 1% -12.2% 9140 ± 1% sched_debug.cpu.nr_load_updates.12 10568 ± 0% -13.5% 9144 ± 1% sched_debug.cpu.nr_load_updates.13 10602 ± 0% -14.5% 9068 ± 2% sched_debug.cpu.nr_load_updates.15 14807 ± 9% -21.5% 11625 ± 9% sched_debug.cpu.nr_load_updates.3 14728 ± 9% -16.2% 12336 ± 3% sched_debug.cpu.nr_load_updates.4 13550 ± 9% -16.9% 11264 ± 10% sched_debug.cpu.nr_load_updates.5 10461 ± 1% -11.5% 9259 ± 2% sched_debug.cpu.nr_load_updates.8 10854 ± 1% -15.0% 9222 ± 1% sched_debug.cpu.nr_load_updates.9 12483 ± 0% -11.9% 11002 ± 0% sched_debug.cpu.nr_load_updates.avg 10206 ± 1% -17.0% 8471 ± 2% sched_debug.cpu.nr_load_updates.min 70384 ± 1% -10.9% 62687 ± 4% sched_debug.cpu.nr_switches.0 37725 ± 1% -19.1% 30535 ± 2% sched_debug.cpu.nr_switches.11 40729 ± 4% -9.3% 36933 ± 2% sched_debug.cpu.nr_switches.12 38235 ± 2% -20.2% 30507 ± 1% sched_debug.cpu.nr_switches.13 38149 ± 0% -21.6% 29911 ± 2% sched_debug.cpu.nr_switches.15 62122 ± 6% -20.8% 49171 ± 5% sched_debug.cpu.nr_switches.3 67546 ± 5% -15.2% 57293 ± 4% sched_debug.cpu.nr_switches.4 63223 ± 7% -18.4% 51620 ± 4% sched_debug.cpu.nr_switches.5 39171 ± 3% -23.5% 29966 ± 1% sched_debug.cpu.nr_switches.9 52157 ± 1% -13.3% 45227 ± 1% sched_debug.cpu.nr_switches.avg 73302 ± 2% -8.5% 67039 ± 1% sched_debug.cpu.nr_switches.max 37405 ± 1% -20.7% 29653 ± 1% sched_debug.cpu.nr_switches.min -11351 ± -6% -41.6% -6624 ± -5% sched_debug.cpu.nr_uninterruptible.0 2139 ± 7% -25.9% 1584 ± 8% sched_debug.cpu.nr_uninterruptible.10 2171 ± 7% -41.3% 1274 ± 9% sched_debug.cpu.nr_uninterruptible.11 2160 ± 9% -14.2% 1854 ± 2% sched_debug.cpu.nr_uninterruptible.12 2336 ± 9% -40.1% 1400 ± 5% sched_debug.cpu.nr_uninterruptible.13 2344 ± 9% -19.5% 1886 ± 4% sched_debug.cpu.nr_uninterruptible.14 2254 ± 5% -37.5% 1408 ± 5% sched_debug.cpu.nr_uninterruptible.15 -1447 ± -5% -18.8% -1174 ±-13% sched_debug.cpu.nr_uninterruptible.3 -187.00 ±-92% +111.1% -394.75 ±-18% sched_debug.cpu.nr_uninterruptible.4 -1690 ± -4% -30.0% -1182 ±-10% sched_debug.cpu.nr_uninterruptible.5 -1455 ± -9% -18.4% -1187 ± -7% sched_debug.cpu.nr_uninterruptible.7 1982 ± 2% -33.2% 1323 ± 12% sched_debug.cpu.nr_uninterruptible.8 2342 ± 5% -38.6% 1438 ± 2% sched_debug.cpu.nr_uninterruptible.9 2513 ± 8% -23.1% 1934 ± 2% sched_debug.cpu.nr_uninterruptible.max -11352 ± -6% -41.6% -6625 ± -5% sched_debug.cpu.nr_uninterruptible.min 3333 ± 5% -37.8% 2074 ± 3% sched_debug.cpu.nr_uninterruptible.stddev 64594 ± 4% -13.4% 55961 ± 9% sched_debug.cpu.sched_count.1 37747 ± 1% -19.1% 30556 ± 2% sched_debug.cpu.sched_count.11 40752 ± 4% -9.3% 36955 ± 2% sched_debug.cpu.sched_count.12 38258 ± 2% -19.7% 30739 ± 0% sched_debug.cpu.sched_count.13 38303 ± 1% -21.9% 29929 ± 2% sched_debug.cpu.sched_count.15 65140 ± 8% -21.6% 51079 ± 6% sched_debug.cpu.sched_count.3 83422 ± 34% -29.9% 58520 ± 3% sched_debug.cpu.sched_count.4 95088 ± 36% -41.7% 55482 ± 13% sched_debug.cpu.sched_count.7 39933 ± 6% -24.9% 29988 ± 1% sched_debug.cpu.sched_count.9 37427 ± 1% -20.7% 29673 ± 1% sched_debug.cpu.sched_count.min 30342 ± 1% -10.4% 27183 ± 4% sched_debug.cpu.sched_goidle.0 16587 ± 13% -15.6% 14005 ± 4% sched_debug.cpu.sched_goidle.10 15173 ± 1% -19.2% 12260 ± 2% sched_debug.cpu.sched_goidle.11 15803 ± 4% -10.5% 14137 ± 1% sched_debug.cpu.sched_goidle.12 15371 ± 2% -20.6% 12208 ± 1% sched_debug.cpu.sched_goidle.13 15353 ± 1% -22.9% 11829 ± 2% sched_debug.cpu.sched_goidle.15 27813 ± 6% -22.0% 21689 ± 5% sched_debug.cpu.sched_goidle.3 29571 ± 6% -17.0% 24532 ± 4% sched_debug.cpu.sched_goidle.4 28495 ± 8% -19.8% 22843 ± 5% sched_debug.cpu.sched_goidle.5 15828 ± 3% -24.9% 11887 ± 2% sched_debug.cpu.sched_goidle.9 22047 ± 1% -14.3% 18903 ± 0% sched_debug.cpu.sched_goidle.avg 32479 ± 3% -8.7% 29652 ± 3% sched_debug.cpu.sched_goidle.max 14845 ± 1% -20.9% 11738 ± 1% sched_debug.cpu.sched_goidle.min 34654 ± 7% -21.2% 27307 ± 7% sched_debug.cpu.ttwu_count.1 18674 ± 8% -18.4% 15244 ± 2% sched_debug.cpu.ttwu_count.10 16391 ± 3% -15.9% 13784 ± 3% sched_debug.cpu.ttwu_count.11 18849 ± 6% -15.1% 16000 ± 4% sched_debug.cpu.ttwu_count.12 19348 ± 18% -25.2% 14469 ± 10% sched_debug.cpu.ttwu_count.13 34534 ± 4% -24.5% 26061 ± 2% sched_debug.cpu.ttwu_count.3 34388 ± 3% -20.8% 27222 ± 8% sched_debug.cpu.ttwu_count.5 33995 ± 2% -18.2% 27821 ± 6% sched_debug.cpu.ttwu_count.7 17553 ± 7% -9.8% 15835 ± 1% sched_debug.cpu.ttwu_count.8 17278 ± 3% -15.5% 14604 ± 7% sched_debug.cpu.ttwu_count.9 29489 ± 1% -12.9% 25686 ± 1% sched_debug.cpu.ttwu_count.avg 16005 ± 1% -18.1% 13115 ± 1% sched_debug.cpu.ttwu_count.min 28738 ± 1% -21.6% 22523 ± 7% sched_debug.cpu.ttwu_local.0 4013 ± 2% -9.8% 3620 ± 1% sched_debug.cpu.ttwu_local.13 4091 ± 0% -10.2% 3674 ± 3% sched_debug.cpu.ttwu_local.15 8228 ± 16% -26.4% 6054 ± 6% sched_debug.cpu.ttwu_local.3 4115 ± 5% -13.8% 3547 ± 3% sched_debug.cpu.ttwu_local.9 7392 ± 1% -10.8% 6593 ± 1% sched_debug.cpu.ttwu_local.avg 29446 ± 2% -19.4% 23729 ± 4% sched_debug.cpu.ttwu_local.max 3903 ± 0% -13.4% 3382 ± 3% sched_debug.cpu.ttwu_local.min 6008 ± 2% -21.6% 4709 ± 6% sched_debug.cpu.ttwu_local.stddev lkp-ne04: Nehalem-EP Memory: 12G 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 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