FYI, we noticed the below changes on https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master commit 60b99b486b568c13cbb7caa83cf8a12af7665f1e ("f2fs: introduce a periodic checkpoint flow")
========================================================================================= tbox_group/testcase/rootfs/kconfig/compiler/period/nr_threads/disk/fs/size/filenum/rwmode/iomode: lkp-ws02/fileio/debian-x86_64-2015-02-07.cgz/x86_64-rhel/gcc-4.9/600s/100%/1HDD/f2fs/64G/1024f/seqrewr/sync commit: 5c2674347466d5c2d5169214e95f4ad6dc09e9b6 60b99b486b568c13cbb7caa83cf8a12af7665f1e 5c2674347466d5c2 60b99b486b568c13cbb7caa83c ---------------- -------------------------- %stddev %change %stddev \ | \ 1111 ± 8% +279.7% 4219 ± 23% fileio.request_latency_max_ms 5656 ± 0% +1.9% 5764 ± 0% fileio.requests_per_sec 1.088e+08 ± 0% +1.9% 1.108e+08 ± 0% fileio.time.file_system_outputs 46225 ± 0% +4.9% 48473 ± 0% fileio.time.involuntary_context_switches 3759 ± 0% +2.6% 3858 ± 1% fileio.time.maximum_resident_set_size 47.00 ± 92% +163.8% 124.00 ± 8% numa-vmstat.node0.workingset_refault 37306 ± 2% -10.6% 33365 ± 1% softirqs.BLOCK 328.00 ± 0% +55.5% 510.00 ± 1% time.file_system_inputs 79132 ± 17% +30.7% 103393 ± 2% numa-meminfo.node0.Active 122897 ± 10% -20.4% 97780 ± 2% numa-meminfo.node1.Active 1.45 ± 1% +3.3% 1.50 ± 1% turbostat.%Busy 0.40 ± 13% +76.1% 0.70 ± 19% turbostat.Pkg%pc3 0.12 ± 15% +638.8% 0.91 ± 16% turbostat.Pkg%pc6 83662 ± 0% +1.9% 85235 ± 0% vmstat.io.bo 626.00 ± 5% +23.0% 770.25 ± 8% vmstat.memory.buff 9980 ± 1% +2.6% 10241 ± 1% vmstat.system.cs 2.012e+08 ± 11% +25.0% 2.514e+08 ± 8% cpuidle.C1E-NHM.time 52329 ± 11% -23.6% 39994 ± 12% cpuidle.C3-NHM.usage 5227 ± 29% +413.0% 26816 ±114% cpuidle.POLL.time 336.25 ± 33% +82.5% 613.50 ± 6% cpuidle.POLL.usage 2648 ± 5% -13.8% 2283 ± 2% proc-vmstat.kswapd_high_wmark_hit_quickly 3872 ± 1% +12.6% 4361 ± 3% proc-vmstat.kswapd_low_wmark_hit_quickly 1072 ± 29% +30.1% 1395 ± 16% proc-vmstat.pgpgin 9856 ± 11% +350.3% 44384 ± 3% proc-vmstat.slabs_scanned 3364 ± 2% -20.9% 2660 ± 2% slabinfo.f2fs_extent_tree.active_objs 3364 ± 2% -20.9% 2660 ± 2% slabinfo.f2fs_extent_tree.num_objs 19645 ± 0% +9.8% 21579 ± 4% slabinfo.jbd2_revoke_record_s.num_objs 3165 ± 4% -8.7% 2891 ± 8% slabinfo.proc_inode_cache.num_objs 0.00 ± -1% +Inf% 1774752 ± 7% latency_stats.avg.call_rwsem_down_read_failed.f2fs_convert_inline_inode.[f2fs].f2fs_write_begin.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.f2fs_file_write_iter.[f2fs].__vfs_write.vfs_write.SyS_pwrite64.entry_SYSCALL_64_fastpath 0.00 ± -1% +Inf% 1804979 ± 68% latency_stats.avg.get_request.blk_queue_bio.generic_make_request.submit_bio.f2fs_submit_page_bio.[f2fs].get_meta_page.[f2fs].get_node_info.[f2fs].read_node_page.[f2fs].get_node_page.[f2fs].get_dnode_of_data.[f2fs].f2fs_reserve_block.[f2fs].f2fs_get_block.[f2fs] 0.00 ± -1% +Inf% 3191014 ± 6% latency_stats.max.call_rwsem_down_read_failed.f2fs_convert_inline_inode.[f2fs].f2fs_write_begin.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.f2fs_file_write_iter.[f2fs].__vfs_write.vfs_write.SyS_pwrite64.entry_SYSCALL_64_fastpath 1043277 ± 6% +294.7% 4118293 ± 23% latency_stats.max.generic_file_write_iter.f2fs_file_write_iter.[f2fs].__vfs_write.vfs_write.SyS_pwrite64.entry_SYSCALL_64_fastpath 0.00 ± -1% +Inf% 1804979 ± 68% latency_stats.max.get_request.blk_queue_bio.generic_make_request.submit_bio.f2fs_submit_page_bio.[f2fs].get_meta_page.[f2fs].get_node_info.[f2fs].read_node_page.[f2fs].get_node_page.[f2fs].get_dnode_of_data.[f2fs].f2fs_reserve_block.[f2fs].f2fs_get_block.[f2fs] 16549 ± 50% +248.8% 57724 ±145% latency_stats.max.rpc_wait_bit_killable.__rpc_wait_for_completion_task.nfs4_run_open_task.[nfsv4]._nfs4_open_and_get_state.[nfsv4].nfs4_do_open.[nfsv4].nfs4_atomic_open.[nfsv4].nfs4_file_open.[nfsv4].do_dentry_open.vfs_open.path_openat.do_filp_open.do_sys_open 0.00 ± -1% +Inf% 16400627 ± 7% latency_stats.sum.call_rwsem_down_read_failed.f2fs_convert_inline_inode.[f2fs].f2fs_write_begin.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.f2fs_file_write_iter.[f2fs].__vfs_write.vfs_write.SyS_pwrite64.entry_SYSCALL_64_fastpath 0.00 ± -1% +Inf% 1804979 ± 68% latency_stats.sum.get_request.blk_queue_bio.generic_make_request.submit_bio.f2fs_submit_page_bio.[f2fs].get_meta_page.[f2fs].get_node_info.[f2fs].read_node_page.[f2fs].get_node_page.[f2fs].get_dnode_of_data.[f2fs].f2fs_reserve_block.[f2fs].f2fs_get_block.[f2fs] -102455 ±-26% +43.5% -147067 ±-18% sched_debug.cfs_rq[14]:/.spread0 4.25 ± 42% +152.9% 10.75 ± 30% sched_debug.cfs_rq[15]:/.util_avg 49880 ± 10% -75.7% 12114 ± 81% sched_debug.cfs_rq[4]:/.spread0 47475 ± 29% -64.6% 16798 ± 70% sched_debug.cfs_rq[5]:/.spread0 4.75 ± 9% +157.9% 12.25 ± 65% sched_debug.cfs_rq[6]:/.load_avg 5.00 ± 14% +165.0% 13.25 ± 58% sched_debug.cfs_rq[6]:/.tg_load_avg_contrib -86.50 ±-72% +177.5% -240.00 ± -8% sched_debug.cpu#1.nr_uninterruptible -3.00 ±-212% -525.0% 12.75 ±115% sched_debug.cpu#11.nr_uninterruptible 2.75 ±211% +1154.5% 34.50 ± 9% sched_debug.cpu#15.nr_uninterruptible 4.50 ±163% +583.3% 30.75 ± 25% sched_debug.cpu#18.nr_uninterruptible 10.25 ±136% +234.1% 34.25 ± 43% sched_debug.cpu#19.nr_uninterruptible 4.75 ±399% +636.8% 35.00 ± 46% sched_debug.cpu#2.nr_uninterruptible 6.75 ±174% +259.3% 24.25 ± 39% sched_debug.cpu#22.nr_uninterruptible 921417 ± 7% -10.1% 828517 ± 7% sched_debug.cpu#5.avg_idle 14.00 ± 25% +98.2% 27.75 ± 29% sched_debug.cpu#7.nr_uninterruptible lkp-ws02: Westmere-EP Memory: 16G fileio.requests_per_sec 5860 ++-------------------------------------------------------------------+ 5840 ++ O O | O O O O O O O O O O O O O O O O O | 5820 ++ O O | 5800 ++ | 5780 ++ | 5760 ++ O O O | | O 5740 ++ | 5720 ++ | 5700 ++ | 5680 ++ | | .*..*.. .*. .*..*.. .* 5660 *+ *..*.*..*..*..*.. .*..*. *..*. *..*..*..*.*..*..*. | 5640 ++------------------------*------------------------------------------+ fileio.time.file_system_outputs 1.125e+08 ++--------------------------------------------------------------+ O O O O O O O | 1.12e+08 ++ O O O O O O O O O O O O O O | 1.115e+08 ++ | | | 1.11e+08 ++ O | | O O O 1.105e+08 ++ | | | 1.1e+08 ++ | 1.095e+08 ++ | | | 1.09e+08 ++.*.*.. .*.. .*..*. | *. *..*.*..*..*.*.. .*. *.*. *..*..*.*..*..*.*..* 1.085e+08 ++----------------------*--*------------------------------------+ time.file_system_inputs 520 O+----O--------O--O-------------------O--O----------------------O-----+ 500 ++ O O O O O O O O O O O O O O O | O O O | 480 ++ | 460 ++ | | | 440 ++ | 420 ++ | 400 ++ | | | 380 ++ | 360 ++ | | | 340 *+.*..*..*..*..*..*.*..*..*..*..*..*..*..*..*..*..*..*.*..*..*..*..*..* 320 ++--------------------------------------------------------------------+ vmstat.io.bo 86500 ++------------------------------------------------------------------+ O O O O O O O O O O O O O O O O O O | 86000 ++ O O O | | | 85500 ++ | | O O O O 85000 ++ | | | 84500 ++ | | | 84000 ++ | *..*.. .*..*..*.. .*.. .*..*.*..*..* 83500 ++ *..*.*..*.. .*.. .*.*..*. * *..*..*. | | *. *. | 83000 ++------------------------------------------------------------------+ proc-vmstat.slabs_scanned 50000 ++------------------------------------------------------------------+ | O O O O O O O O O 45000 O+ O O O O O O O O O O O O O O | 40000 ++ O | | | 35000 ++ | 30000 ++ | | .*..*.. .*..*..*.. .*..*. .* | 25000 *+ * *. *..*. : | 20000 ++ : | | : | 15000 ++ : | 10000 ++ : .* .*.. .*..| | *..*. + .*. .*..*.*. * 5000 ++-------------------------------------------*--------*-------------+ [*] bisect-good sample [O] bisect-bad sample 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
--- LKP_SERVER: inn LKP_CGI_PORT: 80 LKP_CIFS_PORT: 139 testcase: fileio default-monitors: wait: activate-monitor kmsg: uptime: iostat: vmstat: numa-numastat: numa-vmstat: numa-meminfo: proc-vmstat: proc-stat: interval: 10 meminfo: slabinfo: interrupts: lock_stat: latency_stats: softirqs: bdi_dev_mapping: diskstats: nfsstat: cpuidle: cpufreq-stats: turbostat: pmeter: sched_debug: interval: 60 cpufreq_governor: default-watchdogs: oom-killer: watchdog: commit: 33033a10ecaf8b27aee8dc2d3ffed1aa022ecb6d model: Westmere-EP memory: 16G nr_hdd_partitions: 11 hdd_partitions: "/dev/disk/by-id/scsi-35000c500*-part1" swap_partitions: rootfs_partition: "/dev/disk/by-id/ata-WDC_WD1002FAEX-00Z3A0_WD-WCATR5408564-part3" category: benchmark period: 600s nr_threads: 100% disk: 1HDD fs: f2fs size: 64G fileio: filenum: 1024f rwmode: seqrewr iomode: sync queue: cyclic testbox: lkp-ws02 tbox_group: lkp-ws02 kconfig: x86_64-rhel enqueue_time: 2015-10-30 17:52:45.410072749 +08:00 id: 9267ec2edfc3d4a915af562ff22cabb085646279 user: lkp compiler: gcc-4.9 head_commit: 33033a10ecaf8b27aee8dc2d3ffed1aa022ecb6d base_commit: 32b88194f71d6ae7768a29f87fbba454728273ee branch: linux-devel/devel-hourly-2015110200 kernel: "/pkg/linux/x86_64-rhel/gcc-4.9/33033a10ecaf8b27aee8dc2d3ffed1aa022ecb6d/vmlinuz-4.3.0-rc7-virtio-gpu-08131-g33033a1" rootfs: debian-x86_64-2015-02-07.cgz result_root: "/result/fileio/600s-100%-1HDD-f2fs-64G-1024f-seqrewr-sync/lkp-ws02/debian-x86_64-2015-02-07.cgz/x86_64-rhel/gcc-4.9/33033a10ecaf8b27aee8dc2d3ffed1aa022ecb6d/0" job_file: "/lkp/scheduled/lkp-ws02/cyclic_fileio-600s-100%-1HDD-f2fs-64G-1024f-seqrewr-sync-x86_64-rhel-CYCLIC_HEAD-33033a10ecaf8b27aee8dc2d3ffed1aa022ecb6d-20151030-77110-1o721no-0.yaml" dequeue_time: 2015-11-02 03:31:36.907364911 +08:00 nr_cpu: "$(nproc)" max_uptime: 1931.5400000000004 initrd: "/osimage/debian/debian-x86_64-2015-02-07.cgz" bootloader_append: - root=/dev/ram0 - user=lkp - job=/lkp/scheduled/lkp-ws02/cyclic_fileio-600s-100%-1HDD-f2fs-64G-1024f-seqrewr-sync-x86_64-rhel-CYCLIC_HEAD-33033a10ecaf8b27aee8dc2d3ffed1aa022ecb6d-20151030-77110-1o721no-0.yaml - ARCH=x86_64 - kconfig=x86_64-rhel - branch=linux-devel/devel-hourly-2015110200 - commit=33033a10ecaf8b27aee8dc2d3ffed1aa022ecb6d - BOOT_IMAGE=/pkg/linux/x86_64-rhel/gcc-4.9/33033a10ecaf8b27aee8dc2d3ffed1aa022ecb6d/vmlinuz-4.3.0-rc7-virtio-gpu-08131-g33033a1 - max_uptime=1931 - RESULT_ROOT=/result/fileio/600s-100%-1HDD-f2fs-64G-1024f-seqrewr-sync/lkp-ws02/debian-x86_64-2015-02-07.cgz/x86_64-rhel/gcc-4.9/33033a10ecaf8b27aee8dc2d3ffed1aa022ecb6d/0 - LKP_SERVER=inn - |- ipmi_watchdog.start_now=1 earlyprintk=ttyS0,115200 systemd.log_level=err debug apic=debug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100 panic=-1 softlockup_panic=1 nmi_watchdog=panic oops=panic load_ramdisk=2 prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal rw lkp_initrd: "/lkp/lkp/lkp-x86_64.cgz" modules_initrd: "/pkg/linux/x86_64-rhel/gcc-4.9/33033a10ecaf8b27aee8dc2d3ffed1aa022ecb6d/modules.cgz" bm_initrd: "/osimage/deps/debian-x86_64-2015-02-07.cgz/lkp.cgz,/osimage/deps/debian-x86_64-2015-02-07.cgz/run-ipconfig.cgz,/osimage/deps/debian-x86_64-2015-02-07.cgz/turbostat.cgz,/lkp/benchmarks/turbostat.cgz,/osimage/deps/debian-x86_64-2015-02-07.cgz/fs.cgz,/osimage/deps/debian-x86_64-2015-02-07.cgz/fileio.cgz" job_state: finished loadavg: 25.00 21.74 12.01 2/340 18620 start_time: '1446406393' end_time: '1446407012' version: "/lkp/lkp/.src-20151030-185949"
mkfs -t f2fs /dev/sdd1 mount -t f2fs /dev/sdd1 /fs/sdd1 cd /fs/sdd1 fallocate -l 67108864 test_file.0 fallocate -l 67108864 test_file.1 fallocate -l 67108864 test_file.2 fallocate -l 67108864 test_file.3 fallocate -l 67108864 test_file.4 fallocate -l 67108864 test_file.5 fallocate -l 67108864 test_file.6 fallocate -l 67108864 test_file.7 fallocate -l 67108864 test_file.8 fallocate -l 67108864 test_file.9 fallocate -l 67108864 test_file.10 fallocate -l 67108864 test_file.11 fallocate -l 67108864 test_file.12 fallocate -l 67108864 test_file.13 fallocate -l 67108864 test_file.14 fallocate -l 67108864 test_file.15 fallocate -l 67108864 test_file.16 fallocate -l 67108864 test_file.17 fallocate -l 67108864 test_file.18 fallocate -l 67108864 test_file.19 fallocate -l 67108864 test_file.20 fallocate -l 67108864 test_file.21 fallocate -l 67108864 test_file.22 fallocate -l 67108864 test_file.23 fallocate -l 67108864 test_file.24 fallocate -l 67108864 test_file.25 fallocate -l 67108864 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sysbench --test=fileio --max-requests=0 --num-threads=24 --max-time=600 --file-test-mode=seqrewr --file-total-size=68719476736 --file-io-mode=sync --file-num=1024 run