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Date: Sun, 23 Aug 2015 07:32:22 +0800
From: kernel test robot <ying.huang@...el.com>
TO: Jaegeuk Kim <jaegeuk@...nel.org>
CC: LKML <linux-kernel@...r.kernel.org>
Subject: [lkp] [f2fs] 88a70a69c0: +49.4% fsmark.files_per_sec
FYI, we noticed the below changes on
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
commit 88a70a69c088933011615fe26242e0335b012284 ("f2fs: fix wrong condition check to trigger f2fs_sync_fs")
=========================================================================================
tbox_group/testcase/rootfs/kconfig/compiler/cpufreq_governor/iterations/nr_threads/disk/fs/filesize/test_size/sync_method/nr_directories/nr_files_per_directory:
nhm4/fsmark/debian-x86_64-2015-02-07.cgz/x86_64-rhel/gcc-4.9/performance/1x/32t/1HDD/f2fs/16MB/60G/NoSync/16d/256fpd
commit:
cd52b6368f1301b55d0e484105c876930e443d83
88a70a69c088933011615fe26242e0335b012284
cd52b6368f1301b5 88a70a69c088933011615fe262
---------------- --------------------------
%stddev %change %stddev
\ | \
698894 ± 2% -10.7% 624267 ± 1% fsmark.app_overhead
6.43 ± 0% +49.4% 9.60 ± 0% fsmark.files_per_sec
496.30 ± 0% -3.7% 477.72 ± 0% fsmark.time.elapsed_time
496.30 ± 0% -3.7% 477.72 ± 0% fsmark.time.elapsed_time.max
58356 ± 9% -49.3% 29591 ± 7% fsmark.time.involuntary_context_switches
11.75 ± 3% -14.9% 10.00 ± 0% fsmark.time.percent_of_cpu_this_job_got
59.14 ± 0% -16.3% 49.50 ± 0% fsmark.time.system_time
609502 ± 0% -35.9% 390479 ± 0% fsmark.time.voluntary_context_switches
2134 ± 5% -29.7% 1499 ± 6% uptime.idle
229046 ± 0% -13.3% 198655 ± 1% meminfo.Dirty
146785 ± 1% +57.8% 231574 ± 1% meminfo.Writeback
2034 ± 0% +10.0% 2238 ± 1% slabinfo.kmalloc-256.active_objs
448.00 ± 0% +23.1% 551.50 ± 1% slabinfo.kmalloc-4096.active_objs
482.25 ± 0% +21.6% 586.25 ± 1% slabinfo.kmalloc-4096.num_objs
24996 ± 0% -18.5% 20379 ± 1% softirqs.BLOCK
93299 ± 1% +21.1% 112999 ± 0% softirqs.SCHED
132179 ± 0% +18.6% 156829 ± 1% softirqs.TIMER
58356 ± 9% -49.3% 29591 ± 7% time.involuntary_context_switches
11.75 ± 3% -14.9% 10.00 ± 0% time.percent_of_cpu_this_job_got
59.14 ± 0% -16.3% 49.50 ± 0% time.system_time
609502 ± 0% -35.9% 390479 ± 0% time.voluntary_context_switches
126546 ± 0% +3.6% 131110 ± 0% vmstat.io.bo
15.25 ± 2% +103.3% 31.00 ± 0% vmstat.procs.b
23495 ± 0% +1.6% 23881 ± 0% vmstat.system.cs
10330 ± 0% +4.8% 10825 ± 0% vmstat.system.in
3.14 ± 3% -8.0% 2.89 ± 0% turbostat.%Busy
96.75 ± 3% -12.4% 84.75 ± 0% turbostat.Avg_MHz
12.01 ± 2% +12.6% 13.53 ± 4% turbostat.CPU%c1
40.58 ± 1% +73.6% 70.47 ± 0% turbostat.CPU%c3
44.27 ± 0% -70.4% 13.12 ± 3% turbostat.CPU%c6
1.506e+08 ± 2% -18.6% 1.225e+08 ± 5% cpuidle.C1-NHM.time
63432793 ± 2% +45.7% 92408180 ± 5% cpuidle.C1E-NHM.time
85526 ± 1% -27.4% 62121 ± 2% cpuidle.C1E-NHM.usage
1.024e+09 ± 0% +45.5% 1.49e+09 ± 1% cpuidle.C3-NHM.time
266717 ± 0% +43.9% 383733 ± 1% cpuidle.C3-NHM.usage
2.619e+09 ± 0% -22.9% 2.018e+09 ± 0% cpuidle.C6-NHM.time
194213 ± 2% -30.4% 135255 ± 1% cpuidle.C6-NHM.usage
155.50 ± 58% -91.9% 12.67 ± 73% proc-vmstat.allocstall
951.00 ± 5% +230.8% 3145 ± 1% proc-vmstat.kswapd_high_wmark_hit_quickly
3011 ± 3% -31.6% 2060 ± 10% proc-vmstat.kswapd_low_wmark_hit_quickly
57266 ± 0% -13.3% 49663 ± 1% proc-vmstat.nr_dirty
0.75 ±110% +13700.0% 103.50 ± 26% proc-vmstat.nr_vmscan_immediate_reclaim
36690 ± 1% +57.8% 57885 ± 1% proc-vmstat.nr_writeback
4229 ± 1% +24.9% 5283 ± 3% proc-vmstat.pageoutrun
8779 ± 2% -45.8% 4755 ± 1% proc-vmstat.pgactivate
78067 ± 23% -97.8% 1738 ± 73% proc-vmstat.pgscan_direct_dma32
18409 ± 3% -32.8% 12373 ± 3% sched_debug.cfs_rq[0]:/.min_vruntime
18497 ± 4% -18.9% 14995 ± 2% sched_debug.cfs_rq[1]:/.min_vruntime
87.71 ±1609% +2889.8% 2622 ± 27% sched_debug.cfs_rq[1]:/.spread0
2068 ± 13% +39.3% 2880 ± 20% sched_debug.cfs_rq[2]:/.avg->runnable_avg_sum
18322 ± 1% -27.5% 13284 ± 5% sched_debug.cfs_rq[2]:/.min_vruntime
44.00 ± 13% +41.5% 62.25 ± 20% sched_debug.cfs_rq[2]:/.tg_runnable_contrib
2260 ± 17% +69.9% 3840 ± 39% sched_debug.cfs_rq[3]:/.avg->runnable_avg_sum
18810 ± 2% -27.2% 13703 ± 4% sched_debug.cfs_rq[3]:/.min_vruntime
48.50 ± 16% +70.1% 82.50 ± 39% sched_debug.cfs_rq[3]:/.tg_runnable_contrib
4839 ± 5% -43.8% 2718 ± 14% sched_debug.cfs_rq[4]:/.exec_clock
15393 ± 2% -55.7% 6817 ± 12% sched_debug.cfs_rq[4]:/.min_vruntime
-3016 ±-27% +84.2% -5555 ±-13% sched_debug.cfs_rq[4]:/.spread0
4957 ± 3% -47.1% 2622 ± 4% sched_debug.cfs_rq[5]:/.exec_clock
16150 ± 2% -52.8% 7615 ± 9% sched_debug.cfs_rq[5]:/.min_vruntime
-2259 ±-26% +110.5% -4757 ±-22% sched_debug.cfs_rq[5]:/.spread0
4977 ± 3% -50.7% 2454 ± 11% sched_debug.cfs_rq[6]:/.exec_clock
15474 ± 1% -51.2% 7558 ± 6% sched_debug.cfs_rq[6]:/.min_vruntime
-2935 ±-33% +64.0% -4814 ±-13% sched_debug.cfs_rq[6]:/.spread0
1797 ± 4% +27.7% 2295 ± 4% sched_debug.cfs_rq[7]:/.avg->runnable_avg_sum
4930 ± 1% -39.2% 2998 ± 8% sched_debug.cfs_rq[7]:/.exec_clock
16149 ± 4% -48.4% 8326 ± 5% sched_debug.cfs_rq[7]:/.min_vruntime
38.25 ± 5% +28.8% 49.25 ± 5% sched_debug.cfs_rq[7]:/.tg_runnable_contrib
1.25 ±103% +420.0% 6.50 ± 53% sched_debug.cpu#0.cpu_load[1]
-499.50 ±-14% -96.9% -15.25 ±-143% sched_debug.cpu#0.nr_uninterruptible
1523859 ± 91% -94.7% 80781 ± 8% sched_debug.cpu#1.ttwu_count
29758 ± 1% +70.6% 50758 ± 21% sched_debug.cpu#2.nr_load_updates
27535 ± 1% +3818.0% 1078840 ± 97% sched_debug.cpu#2.ttwu_local
28162 ± 1% +35.3% 38116 ± 4% sched_debug.cpu#3.nr_load_updates
183204 ± 16% -37.4% 114749 ± 4% sched_debug.cpu#3.nr_switches
183360 ± 16% -37.4% 114830 ± 4% sched_debug.cpu#3.sched_count
80066 ± 18% -32.0% 54416 ± 4% sched_debug.cpu#3.sched_goidle
25169 ± 2% +20.2% 30259 ± 4% sched_debug.cpu#3.ttwu_local
205.25 ± 14% -70.5% 60.50 ± 7% sched_debug.cpu#4.nr_uninterruptible
22718 ± 37% -50.2% 11302 ± 6% sched_debug.cpu#5.nr_load_updates
1620691 ± 90% -93.7% 102382 ± 14% sched_debug.cpu#5.nr_switches
177.25 ± 13% -74.0% 46.00 ± 58% sched_debug.cpu#5.nr_uninterruptible
1620849 ± 90% -93.7% 102471 ± 14% sched_debug.cpu#5.sched_count
794157 ± 91% -93.9% 48455 ± 15% sched_debug.cpu#5.sched_goidle
810491 ± 88% -91.3% 70436 ± 26% sched_debug.cpu#5.ttwu_count
729454 ± 98% -99.2% 6150 ± 7% sched_debug.cpu#5.ttwu_local
131.00 ± 37% -60.5% 51.75 ± 25% sched_debug.cpu#6.nr_uninterruptible
3.25 ±155% +1130.8% 40.00 ± 83% sched_debug.cpu#7.cpu_load[0]
3.75 ± 82% +160.0% 9.75 ± 53% sched_debug.cpu#7.cpu_load[4]
198.00 ± 20% -71.7% 56.00 ± 8% sched_debug.cpu#7.nr_uninterruptible
13180 ± 6% -43.2% 7481 ± 13% sched_debug.cpu#7.ttwu_local
43097 ± 0% +25.3% 54021 ± 0% latency_stats.avg.balance_dirty_pages_ratelimited.generic_perform_write.__generic_file_write_iter.generic_file_write_iter.new_sync_write.vfs_write.SyS_write.system_call_fastpath
1557144 ± 0% -100.0% 0.00 ± -1% 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.new_sync_write.vfs_write.SyS_write.system_call_fastpath
970823 ± 23% -100.0% 0.00 ± -1% latency_stats.avg.call_rwsem_down_read_failed.f2fs_new_inode.[f2fs].f2fs_create.[f2fs].vfs_create.do_last.path_openat.do_filp_open.do_sys_open.SyS_open.system_call_fastpath
0.00 ± -1% +Inf% 214155 ± 70% latency_stats.avg.call_rwsem_down_read_failed.f2fs_wait_on_page_writeback.[f2fs].f2fs_wait_on_page_writeback.[f2fs].__f2fs_add_link.[f2fs].f2fs_create.[f2fs].vfs_create.do_last.path_openat.do_filp_open.do_sys_open.SyS_open.system_call_fastpath
0.00 ± -1% +Inf% 60170 ± 93% latency_stats.avg.call_rwsem_down_read_failed.f2fs_wait_on_page_writeback.[f2fs].f2fs_wait_on_page_writeback.[f2fs].update_inode.[f2fs].sync_inode_page.[f2fs].reserve_new_block.[f2fs].f2fs_reserve_block.[f2fs].f2fs_write_begin.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.new_sync_write
225094 ± 16% -100.0% 0.00 ± -1% latency_stats.avg.call_rwsem_down_read_failed.f2fs_write_begin.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.new_sync_write.vfs_write.SyS_write.system_call_fastpath
0.00 ± -1% +Inf% 101419 ± 96% latency_stats.avg.get_request.blk_queue_bio.generic_make_request.submit_bio.__submit_merged_bio.[f2fs].f2fs_submit_merged_bio.[f2fs].f2fs_wait_on_page_writeback.[f2fs].f2fs_wait_on_page_writeback.[f2fs].update_inode.[f2fs].update_inode_page.[f2fs].f2fs_write_end.[f2fs].generic_perform_write
0.00 ± -1% +Inf% 1566660 ± 2% latency_stats.avg.wait_on_page_bit.f2fs_wait_on_page_writeback.[f2fs].f2fs_wait_on_page_writeback.[f2fs].__set_data_blkaddr.[f2fs].reserve_new_block.[f2fs].f2fs_reserve_block.[f2fs].f2fs_write_begin.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.new_sync_write.vfs_write
0.00 ± -1% +Inf% 60796 ± 69% latency_stats.avg.wait_on_page_bit.f2fs_wait_on_page_writeback.[f2fs].f2fs_wait_on_page_writeback.[f2fs].get_dnode_of_data.[f2fs].f2fs_reserve_block.[f2fs].f2fs_write_begin.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.new_sync_write.vfs_write.SyS_write
0.00 ± -1% +Inf% 1643593 ± 34% latency_stats.avg.wait_on_page_bit.f2fs_wait_on_page_writeback.[f2fs].f2fs_wait_on_page_writeback.[f2fs].update_inode.[f2fs].sync_inode_page.[f2fs].new_node_page.[f2fs].get_dnode_of_data.[f2fs].f2fs_reserve_block.[f2fs].f2fs_write_begin.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter
0.00 ± -1% +Inf% 210894 ±117% latency_stats.avg.wait_on_page_bit.f2fs_wait_on_page_writeback.[f2fs].f2fs_wait_on_page_writeback.[f2fs].update_inode.[f2fs].sync_inode_page.[f2fs].reserve_new_block.[f2fs].f2fs_reserve_block.[f2fs].f2fs_write_begin.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.new_sync_write
0.00 ± -1% +Inf% 885323 ± 71% latency_stats.avg.wait_on_page_bit.f2fs_wait_on_page_writeback.[f2fs].f2fs_wait_on_page_writeback.[f2fs].update_inode.[f2fs].update_inode_page.[f2fs].f2fs_write_end.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.new_sync_write.vfs_write.SyS_write
1593081 ± 27% -100.0% 0.00 ± -1% latency_stats.avg.wait_on_page_bit.find_data_page.[f2fs].f2fs_find_entry.[f2fs].f2fs_lookup.[f2fs].lookup_real.do_last.path_openat.do_filp_open.do_sys_open.SyS_open.system_call_fastpath
166104 ± 0% +43.7% 238737 ± 1% latency_stats.hits.balance_dirty_pages_ratelimited.generic_perform_write.__generic_file_write_iter.generic_file_write_iter.new_sync_write.vfs_write.SyS_write.system_call_fastpath
89938 ± 2% -77.3% 20398 ± 5% latency_stats.hits.call_rwsem_down_read_failed.get_node_info.[f2fs].read_node_page.[f2fs].get_node_page.[f2fs].f2fs_convert_inline_inode.[f2fs].f2fs_write_begin.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.new_sync_write.vfs_write.SyS_write
90810 ± 2% -77.3% 20638 ± 5% latency_stats.hits.call_rwsem_down_read_failed.get_node_info.[f2fs].read_node_page.[f2fs].get_node_page.[f2fs].f2fs_write_begin.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.new_sync_write.vfs_write.SyS_write.system_call_fastpath
73358 ± 3% -77.9% 16217 ± 5% latency_stats.hits.call_rwsem_down_read_failed.get_node_info.[f2fs].read_node_page.[f2fs].get_node_page.[f2fs].get_dnode_of_data.[f2fs].f2fs_reserve_block.[f2fs].f2fs_write_begin.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.new_sync_write.vfs_write
95785 ± 2% -76.4% 22618 ± 5% latency_stats.hits.call_rwsem_down_read_failed.get_node_info.[f2fs].read_node_page.[f2fs].get_node_page.[f2fs].update_inode_page.[f2fs].f2fs_write_end.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.new_sync_write.vfs_write.SyS_write
2926891 ± 2% -100.0% 0.00 ± -1% 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.new_sync_write.vfs_write.SyS_write.system_call_fastpath
1609764 ± 29% -100.0% 0.00 ± -1% latency_stats.max.call_rwsem_down_read_failed.f2fs_new_inode.[f2fs].f2fs_create.[f2fs].vfs_create.do_last.path_openat.do_filp_open.do_sys_open.SyS_open.system_call_fastpath
0.00 ± -1% +Inf% 493421 ± 62% latency_stats.max.call_rwsem_down_read_failed.f2fs_wait_on_page_writeback.[f2fs].f2fs_wait_on_page_writeback.[f2fs].__f2fs_add_link.[f2fs].f2fs_create.[f2fs].vfs_create.do_last.path_openat.do_filp_open.do_sys_open.SyS_open.system_call_fastpath
0.00 ± -1% +Inf% 99336 ± 98% latency_stats.max.call_rwsem_down_read_failed.f2fs_wait_on_page_writeback.[f2fs].f2fs_wait_on_page_writeback.[f2fs].update_inode.[f2fs].sync_inode_page.[f2fs].reserve_new_block.[f2fs].f2fs_reserve_block.[f2fs].f2fs_write_begin.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.new_sync_write
2242545 ± 22% -100.0% 0.00 ± -1% latency_stats.max.call_rwsem_down_read_failed.f2fs_write_begin.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.new_sync_write.vfs_write.SyS_write.system_call_fastpath
0.00 ± -1% +Inf% 101419 ± 96% latency_stats.max.get_request.blk_queue_bio.generic_make_request.submit_bio.__submit_merged_bio.[f2fs].f2fs_submit_merged_bio.[f2fs].f2fs_wait_on_page_writeback.[f2fs].f2fs_wait_on_page_writeback.[f2fs].update_inode.[f2fs].update_inode_page.[f2fs].f2fs_write_end.[f2fs].generic_perform_write
0.00 ± -1% +Inf% 2155762 ± 1% latency_stats.max.wait_on_page_bit.f2fs_wait_on_page_writeback.[f2fs].f2fs_wait_on_page_writeback.[f2fs].__set_data_blkaddr.[f2fs].reserve_new_block.[f2fs].f2fs_reserve_block.[f2fs].f2fs_write_begin.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.new_sync_write.vfs_write
0.00 ± -1% +Inf% 547532 ±147% latency_stats.max.wait_on_page_bit.f2fs_wait_on_page_writeback.[f2fs].f2fs_wait_on_page_writeback.[f2fs].get_dnode_of_data.[f2fs].f2fs_reserve_block.[f2fs].f2fs_write_begin.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.new_sync_write.vfs_write.SyS_write
0.00 ± -1% +Inf% 1643593 ± 34% latency_stats.max.wait_on_page_bit.f2fs_wait_on_page_writeback.[f2fs].f2fs_wait_on_page_writeback.[f2fs].update_inode.[f2fs].sync_inode_page.[f2fs].new_node_page.[f2fs].get_dnode_of_data.[f2fs].f2fs_reserve_block.[f2fs].f2fs_write_begin.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter
0.00 ± -1% +Inf% 936362 ±100% latency_stats.max.wait_on_page_bit.f2fs_wait_on_page_writeback.[f2fs].f2fs_wait_on_page_writeback.[f2fs].update_inode.[f2fs].sync_inode_page.[f2fs].reserve_new_block.[f2fs].f2fs_reserve_block.[f2fs].f2fs_write_begin.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.new_sync_write
0.00 ± -1% +Inf% 981143 ± 74% latency_stats.max.wait_on_page_bit.f2fs_wait_on_page_writeback.[f2fs].f2fs_wait_on_page_writeback.[f2fs].update_inode.[f2fs].update_inode_page.[f2fs].f2fs_write_end.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.new_sync_write.vfs_write.SyS_write
2311901 ± 1% -100.0% 0.00 ± -1% latency_stats.max.wait_on_page_bit.find_data_page.[f2fs].f2fs_find_entry.[f2fs].f2fs_lookup.[f2fs].lookup_real.do_last.path_openat.do_filp_open.do_sys_open.SyS_open.system_call_fastpath
7.159e+09 ± 1% +80.1% 1.29e+10 ± 0% latency_stats.sum.balance_dirty_pages_ratelimited.generic_perform_write.__generic_file_write_iter.generic_file_write_iter.new_sync_write.vfs_write.SyS_write.system_call_fastpath
7.392e+09 ± 1% -100.0% 0.00 ± -1% 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.new_sync_write.vfs_write.SyS_write.system_call_fastpath
4641241 ± 65% -100.0% 0.00 ± -1% latency_stats.sum.call_rwsem_down_read_failed.f2fs_new_inode.[f2fs].f2fs_create.[f2fs].vfs_create.do_last.path_openat.do_filp_open.do_sys_open.SyS_open.system_call_fastpath
0.00 ± -1% +Inf% 2970972 ±119% latency_stats.sum.call_rwsem_down_read_failed.f2fs_wait_on_page_writeback.[f2fs].f2fs_wait_on_page_writeback.[f2fs].__f2fs_add_link.[f2fs].f2fs_create.[f2fs].vfs_create.do_last.path_openat.do_filp_open.do_sys_open.SyS_open.system_call_fastpath
0.00 ± -1% +Inf% 1400735 ±115% latency_stats.sum.call_rwsem_down_read_failed.f2fs_wait_on_page_writeback.[f2fs].f2fs_wait_on_page_writeback.[f2fs].update_inode.[f2fs].sync_inode_page.[f2fs].reserve_new_block.[f2fs].f2fs_reserve_block.[f2fs].f2fs_write_begin.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.new_sync_write
34303529 ± 35% -100.0% 0.00 ± -1% latency_stats.sum.call_rwsem_down_read_failed.f2fs_write_begin.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.new_sync_write.vfs_write.SyS_write.system_call_fastpath
173732 ± 4% -43.4% 98372 ± 9% latency_stats.sum.call_rwsem_down_read_failed.get_node_info.[f2fs].new_node_page.[f2fs].get_dnode_of_data.[f2fs].f2fs_reserve_block.[f2fs].f2fs_write_begin.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.new_sync_write.vfs_write.SyS_write
12335489 ± 3% -82.6% 2148753 ± 7% latency_stats.sum.call_rwsem_down_read_failed.get_node_info.[f2fs].read_node_page.[f2fs].get_node_page.[f2fs].f2fs_convert_inline_inode.[f2fs].f2fs_write_begin.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.new_sync_write.vfs_write.SyS_write
12643502 ± 3% -82.9% 2161679 ± 7% latency_stats.sum.call_rwsem_down_read_failed.get_node_info.[f2fs].read_node_page.[f2fs].get_node_page.[f2fs].f2fs_write_begin.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.new_sync_write.vfs_write.SyS_write.system_call_fastpath
10460959 ± 4% -82.8% 1796848 ± 5% latency_stats.sum.call_rwsem_down_read_failed.get_node_info.[f2fs].read_node_page.[f2fs].get_node_page.[f2fs].get_dnode_of_data.[f2fs].f2fs_reserve_block.[f2fs].f2fs_write_begin.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.new_sync_write.vfs_write
46303 ± 10% -71.7% 13097 ± 23% latency_stats.sum.call_rwsem_down_read_failed.get_node_info.[f2fs].read_node_page.[f2fs].get_node_page.[f2fs].get_dnode_of_data.[f2fs].f2fs_reserve_block.[f2fs].get_new_data_page.[f2fs].__f2fs_add_link.[f2fs].f2fs_create.[f2fs].vfs_create.do_last.path_openat
24455 ± 18% -66.6% 8164 ± 29% latency_stats.sum.call_rwsem_down_read_failed.get_node_info.[f2fs].read_node_page.[f2fs].get_node_page.[f2fs].get_dnode_of_data.[f2fs].find_data_page.[f2fs].f2fs_find_entry.[f2fs].f2fs_lookup.[f2fs].lookup_real.do_last.path_openat.do_filp_open
13132122 ± 3% -81.7% 2403201 ± 7% latency_stats.sum.call_rwsem_down_read_failed.get_node_info.[f2fs].read_node_page.[f2fs].get_node_page.[f2fs].update_inode_page.[f2fs].f2fs_write_end.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.new_sync_write.vfs_write.SyS_write
689498 ± 4% -70.8% 201181 ± 6% latency_stats.sum.call_rwsem_down_write_failed.get_node_info.[f2fs].new_node_page.[f2fs].get_dnode_of_data.[f2fs].f2fs_reserve_block.[f2fs].f2fs_write_begin.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.new_sync_write.vfs_write.SyS_write
107001 ± 7% -67.6% 34703 ± 29% 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.do_last.path_openat.do_filp_open.do_sys_open
637933 ± 4% -72.5% 175156 ± 3% latency_stats.sum.call_rwsem_down_write_failed.set_node_addr.[f2fs].new_node_page.[f2fs].get_dnode_of_data.[f2fs].f2fs_reserve_block.[f2fs].f2fs_write_begin.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.new_sync_write.vfs_write.SyS_write
98057 ± 3% -71.3% 28111 ± 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_link.[f2fs].f2fs_create.[f2fs].vfs_create.do_last.path_openat.do_filp_open.do_sys_open
1107127 ± 0% +5.5% 1168564 ± 1% latency_stats.sum.do_wait.SyS_wait4.system_call_fastpath
0.00 ± -1% +Inf% 101419 ± 96% latency_stats.sum.get_request.blk_queue_bio.generic_make_request.submit_bio.__submit_merged_bio.[f2fs].f2fs_submit_merged_bio.[f2fs].f2fs_wait_on_page_writeback.[f2fs].f2fs_wait_on_page_writeback.[f2fs].update_inode.[f2fs].update_inode_page.[f2fs].f2fs_write_end.[f2fs].generic_perform_write
946288 ±128% +18540.4% 1.764e+08 ± 44% latency_stats.sum.wait_on_page_bit.f2fs_wait_on_page_writeback.[f2fs].f2fs_wait_on_page_writeback.[f2fs].__f2fs_add_link.[f2fs].f2fs_create.[f2fs].vfs_create.do_last.path_openat.do_filp_open.do_sys_open.SyS_open.system_call_fastpath
0.00 ± -1% +Inf% 9.825e+08 ± 4% latency_stats.sum.wait_on_page_bit.f2fs_wait_on_page_writeback.[f2fs].f2fs_wait_on_page_writeback.[f2fs].__set_data_blkaddr.[f2fs].reserve_new_block.[f2fs].f2fs_reserve_block.[f2fs].f2fs_write_begin.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.new_sync_write.vfs_write
0.00 ± -1% +Inf% 6369185 ± 77% latency_stats.sum.wait_on_page_bit.f2fs_wait_on_page_writeback.[f2fs].f2fs_wait_on_page_writeback.[f2fs].get_dnode_of_data.[f2fs].f2fs_reserve_block.[f2fs].f2fs_write_begin.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.new_sync_write.vfs_write.SyS_write
0.00 ± -1% +Inf% 1643593 ± 34% latency_stats.sum.wait_on_page_bit.f2fs_wait_on_page_writeback.[f2fs].f2fs_wait_on_page_writeback.[f2fs].update_inode.[f2fs].sync_inode_page.[f2fs].new_node_page.[f2fs].get_dnode_of_data.[f2fs].f2fs_reserve_block.[f2fs].f2fs_write_begin.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter
0.00 ± -1% +Inf% 14652195 ±106% latency_stats.sum.wait_on_page_bit.f2fs_wait_on_page_writeback.[f2fs].f2fs_wait_on_page_writeback.[f2fs].update_inode.[f2fs].sync_inode_page.[f2fs].reserve_new_block.[f2fs].f2fs_reserve_block.[f2fs].f2fs_write_begin.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.new_sync_write
0.00 ± -1% +Inf% 2354965 ±107% latency_stats.sum.wait_on_page_bit.f2fs_wait_on_page_writeback.[f2fs].f2fs_wait_on_page_writeback.[f2fs].update_inode.[f2fs].update_inode_page.[f2fs].f2fs_write_end.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.new_sync_write.vfs_write.SyS_write
6949333 ± 55% -100.0% 0.00 ± -1% latency_stats.sum.wait_on_page_bit.find_data_page.[f2fs].f2fs_find_entry.[f2fs].f2fs_lookup.[f2fs].lookup_real.do_last.path_openat.do_filp_open.do_sys_open.SyS_open.system_call_fastpath
nhm4: Nehalem
Memory: 4G
fsmark.files_per_sec
10 ++--------------------------------------------------------------------+
O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
9.5 ++ |
9 ++ |
| |
8.5 ++ |
| |
8 ++ |
| |
7.5 ++ |
7 ++ |
| |
6.5 *+.*.*.. .*. .*.*.. .*.. .* |
| *.*. *. *.*..* *.*..*.*..* |
6 ++--------------------------------------------------------------------+
fsmark.time.system_time
62 ++---------------------------------------------------------------------+
| *..* |
60 *+. + + .*.*..*.*..*.*.. *. |
| * *.. .*. .. *..*.*..* |
58 ++ * * |
| |
56 ++ |
| |
54 ++ |
| |
52 ++ |
O O O O O O O O |
50 ++ O O O O O O O O O O O O O O
| O O O O O O O |
48 ++---------------------------------------------------------------------+
fsmark.time.elapsed_time
620 ++--------------------------------------------------------------------+
| |
600 ++ * |
580 ++ : |
| :: |
560 ++ : : |
| : : |
540 ++ : : |
| : : |
520 ++ : : |
500 ++ : : |
*..*.*..*.*..*.*..*.*..*.*..*.*..* *.*..*.* |
480 O+ O O O O O O O O O O O O O O O O O O O O O O O O O |
| O O O
460 ++--------------------------------------------------------------------+
fsmark.time.elapsed_time.max
620 ++--------------------------------------------------------------------+
| |
600 ++ * |
580 ++ : |
| :: |
560 ++ : : |
| : : |
540 ++ : : |
| : : |
520 ++ : : |
500 ++ : : |
*..*.*..*.*..*.*..*.*..*.*..*.*..* *.*..*.* |
480 O+ O O O O O O O O O O O O O O O O O O O O O O O O O |
| O O O
460 ++--------------------------------------------------------------------+
fsmark.time.voluntary_context_switches
650000 ++-----------------------------------------------------------------+
* .*. |
600000 ++ .*.*..*.*.*..*.*..*.*.*..*.*. *.*..*.* |
| *. |
| |
550000 ++ |
| |
500000 ++ |
| |
450000 ++ |
| |
| O O |
400000 O+O O O O O O O O O O O O O O O O O O O O O O O O O O
| |
350000 ++-----------------------------------------------------------------+
time.system_time
62 ++---------------------------------------------------------------------+
| *..* |
60 *+. + + .*.*..*.*..*.*.. *. |
| * *.. .*. .. *..*.*..* |
58 ++ * * |
| |
56 ++ |
| |
54 ++ |
| |
52 ++ |
O O O O O O O O |
50 ++ O O O O O O O O O O O O O O
| O O O O O O O |
48 ++---------------------------------------------------------------------+
time.voluntary_context_switches
650000 ++-----------------------------------------------------------------+
* .*. |
600000 ++ .*.*..*.*.*..*.*..*.*.*..*.*. *.*..*.* |
| *. |
| |
550000 ++ |
| |
500000 ++ |
| |
450000 ++ |
| |
| O O |
400000 O+O O O O O O O O O O O O O O O O O O O O O O O O O O
| |
350000 ++-----------------------------------------------------------------+
vmstat.procs.b
32 ++---------------------------------------------------------------------+
O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
30 ++ |
28 ++ |
| |
26 ++ |
24 ++ |
| |
22 ++ |
20 ++ |
| |
18 ++ .*.. .*. |
16 *+.* *.*. *..*.*..*.*..*.*..*..*.*.. |
| *.*..* |
14 ++---------------------------------------------------------------------+
vmstat.io.bo
132000 ++-----------------------------------------------------------------+
| O O O |
131000 O+O O O O O O O O O O O O O O O O O O O O O O O
| O O |
| |
130000 ++ |
| |
129000 ++ |
| |
128000 ++ |
| |
| |
127000 ++ .*.*.. .*..*. .*. .*. .*. .* |
*.*. *.* *. *.*. *. *.*..* |
126000 ++-----------------------------------------------------------------+
proc-vmstat.nr_writeback
60000 ++--------------------------------------------------------O---------+
| O O O O O O O O O O O O O O O O |
55000 O+ O O O O O O O O O O O
| |
| |
50000 ++ |
| |
45000 ++ |
| |
40000 ++ |
|.*..*.*.. .*.. |
* *.*..*.*.*..*.*..* * *..*.*..* |
35000 ++ : : |
| : : |
30000 ++--------------------------------*---------------------------------+
proc-vmstat.nr_vmscan_immediate_reclaim
180 ++--------------------------------------------------------------------+
| O |
160 ++ |
140 ++ O O |
| O O O O O |
120 O+ O O O O |
100 ++ O O O O O O O O O |
| O O |
80 ++ O O O O O
60 ++ |
| |
40 ++ |
20 ++ |
| |
0 *+-*-*--*-*--*-*--*-*--*-*--*-*--*-*--*-*--*-*------------------------+
proc-vmstat.pgactivate
10000 ++------------------------------------------------------------------+
* *. |
9000 ++ .*.. .*..*. .*.*.. .*.. + *.. .*.. |
| *..* * *.*. * * * * |
| |
8000 ++ |
| |
7000 ++ |
| |
6000 ++ |
| |
| |
5000 O+O O O O O O O O O O O O O O O O O O O
| O O O O O O O O O |
4000 ++------------------------------------------------------------------+
proc-vmstat.kswapd_high_wmark_hit_quickly
3500 ++-------------------------------------------------------------------+
| O O O O O O O O O O O |
3000 O+O O O O O O O O O O O O O O O O O
| |
| |
2500 ++ |
| |
2000 ++ |
| |
1500 ++ |
| |
| .*. .*.. |
1000 *+*..*. .*.*..*.*. *..* *.*..*.*.*..*.* |
| *. |
500 ++-------------------------------------------------------------------+
meminfo.Writeback
240000 ++-------------------------------------------------------O---------+
| O O O O O O O O O O O O O O O O |
220000 O+ O O O O O O O O O O O
| |
| |
200000 ++ |
| |
180000 ++ |
| |
160000 ++ |
|.*..*.*.. .*. |
* *.*.*..*.*..*.*.*. * *.*..*.* |
140000 ++ + : |
| + : |
120000 ++--------------------------------*--------------------------------+
slabinfo.kmalloc-4096.active_objs
580 ++--------------------------------------------------------------------+
| O O |
560 O+ O O O O O O O O O O O O O O O O O O O |
540 ++ O O O O O O O
| |
520 ++ |
500 ++ |
| |
480 ++ |
460 ++ |
*..*.*..*.*..*.*..*. .*.*..*.*.. *.*..*.* |
440 ++ *. * + |
420 ++ + + |
| * |
400 ++--------------------------------------------------------------------+
slabinfo.kmalloc-4096.num_objs
600 ++------------------------------------------------------------------O-+
O O O O O O O O O O O O O O O O O O O |
580 ++ O O O O O O O O
560 ++ O |
| |
540 ++ |
| |
520 ++ |
| |
500 ++ |
480 *+.*.*..*.*..*.*..*. .*.*..*.*.. .*..*.* |
| *. * * |
460 ++ : + |
| : + |
440 ++---------------------------------*----------------------------------+
[*] 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
View attachment "job.yaml" of type "text/plain" (3714 bytes)
View attachment "reproduce" of type "text/plain" (1164 bytes)
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