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Date: Mon, 18 Jul 2016 10:09:50 +0800
From: kernel test robot <xiaolong.ye@...el.com>
To: Jaegeuk Kim <jaegeuk@...nel.org>
Cc: LKML <linux-kernel@...r.kernel.org>,
Jaegeuk Kim <jaegeuk@...nel.org>,
linux-f2fs-devel@...ts.sourceforge.net, lkp@...org
Subject: [lkp] [f2fs] ec795418c4: fsmark.app_overhead -36.3% regression
FYI, we noticed a -36.3% regression of fsmark.files_per_sec due to commit:
commit ec795418c41850056feb956534edf059dc1155d4 ("f2fs: use percpu_rw_semaphore")
https://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git dev-test
in testcase: fsmark
on test machine: 72 threads Haswell-EP with 128G memory
with following parameters: cpufreq_governor=performance/disk=1SSD/filesize=8K/fs=f2fs/iterations=8/nr_directories=16d/nr_files_per_directory=256fpd/nr_threads=4/sync_method=fsyncBeforeClose/test_size=72G
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.
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
=========================================================================================
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/1SSD/8K/f2fs/8/x86_64-rhel/16d/256fpd/4/debian-x86_64-2015-02-07.cgz/fsyncBeforeClose/lkp-hsw-ep4/72G/fsmark
commit:
3bdad3c7ee ("f2fs: skip to check the block address of node page")
ec795418c4 ("f2fs: use percpu_rw_semaphore")
3bdad3c7ee72a76e ec795418c41850056feb956534
---------------- --------------------------
fail:runs %reproduction fail:runs
| | |
%stddev %change %stddev
\ | \
29551 ± 0% -36.3% 18831 ± 2% fsmark.files_per_sec
6696820 ± 1% +4.2% 6977582 ± 1% fsmark.app_overhead
322.28 ± 0% +55.9% 502.37 ± 2% fsmark.time.elapsed_time
322.28 ± 0% +55.9% 502.37 ± 2% fsmark.time.elapsed_time.max
2.756e+08 ± 0% -7.6% 2.545e+08 ± 0% fsmark.time.file_system_outputs
8913 ± 6% +106.8% 18436 ± 10% fsmark.time.involuntary_context_switches
320.80 ± 0% -2.8% 311.80 ± 0% fsmark.time.percent_of_cpu_this_job_got
993.78 ± 0% +53.2% 1522 ± 2% fsmark.time.system_time
41.53 ± 2% +11.1% 46.13 ± 1% fsmark.time.user_time
21551618 ± 0% +123.2% 48100377 ± 2% fsmark.time.voluntary_context_switches
51036 ± 6% +77.9% 90812 ± 0% meminfo.Dirty
25742 ± 49% +100.4% 51585 ± 31% numa-meminfo.node1.Dirty
6517 ± 49% +97.7% 12887 ± 31% numa-vmstat.node1.nr_dirty
311222 ± 2% +55.6% 484246 ± 7% softirqs.RCU
483341 ± 3% +34.2% 648718 ± 3% softirqs.SCHED
849788 ± 7% +27.1% 1079705 ± 5% softirqs.TIMER
8.48 ± 0% -5.0% 8.06 ± 0% turbostat.%Busy
223.50 ± 0% -7.5% 206.80 ± 0% turbostat.Avg_MHz
1.02 ± 3% +45.2% 1.48 ± 2% turbostat.CPU%c3
7420 ± 2% -18.1% 6079 ± 1% slabinfo.ext4_extent_status.active_objs
7420 ± 2% -18.1% 6079 ± 1% slabinfo.ext4_extent_status.num_objs
7676 ± 1% -12.8% 6694 ± 3% slabinfo.kmalloc-1024.active_objs
8005 ± 1% -12.3% 7016 ± 2% slabinfo.kmalloc-1024.num_objs
270.00 ± 1% -36.3% 172.10 ± 3% vmstat.io.bi
424174 ± 0% -40.5% 252324 ± 2% vmstat.io.bo
137171 ± 0% +42.3% 195205 ± 0% vmstat.system.cs
129727 ± 0% -16.4% 108410 ± 0% vmstat.system.in
115.40 ±127% -96.1% 4.50 ±189% proc-vmstat.kswapd_high_wmark_hit_quickly
12748 ± 6% +78.2% 22719 ± 0% proc-vmstat.nr_dirty
6239 ± 9% +26.7% 7908 ± 13% proc-vmstat.numa_hint_faults
5275 ± 8% +22.6% 6469 ± 11% proc-vmstat.numa_hint_faults_local
746512 ± 2% +50.2% 1121580 ± 2% proc-vmstat.pgfault
2.331e+08 ± 1% +179.8% 6.522e+08 ± 5% cpuidle.C1-HSW.time
21473442 ± 0% +125.2% 48347668 ± 2% cpuidle.C1-HSW.usage
13731593 ± 4% +1207.0% 1.795e+08 ± 16% cpuidle.C1E-HSW.time
123887 ± 3% +1237.9% 1657510 ± 18% cpuidle.C1E-HSW.usage
2.173e+08 ± 4% +181.6% 6.12e+08 ± 4% cpuidle.C3-HSW.time
479301 ± 5% +441.1% 2593727 ± 5% cpuidle.C3-HSW.usage
2.042e+10 ± 0% +52.9% 3.123e+10 ± 2% cpuidle.C6-HSW.time
22061045 ± 0% +53.2% 33801151 ± 2% cpuidle.C6-HSW.usage
1.131e+08 ± 10% +44.0% 1.629e+08 ± 7% cpuidle.POLL.time
448858 ± 0% +25.2% 561850 ± 0% cpuidle.POLL.usage
6.679e+10 ± 3% +43.1% 9.559e+10 ± 2% perf-stat.L1-dcache-load-misses
7.043e+11 ± 3% +44.4% 1.017e+12 ± 4% perf-stat.L1-dcache-loads
4.012e+11 ± 5% +44.5% 5.798e+11 ± 4% perf-stat.L1-dcache-stores
3.657e+10 ± 5% +26.0% 4.609e+10 ± 4% perf-stat.L1-icache-load-misses
3.534e+10 ± 3% +39.2% 4.919e+10 ± 5% perf-stat.LLC-loads
5.802e+09 ± 8% +77.5% 1.03e+10 ± 6% perf-stat.LLC-stores
5.894e+11 ± 4% +44.1% 8.49e+11 ± 4% perf-stat.branch-instructions
5.843e+09 ± 5% +61.1% 9.414e+09 ± 5% perf-stat.branch-load-misses
5.715e+11 ± 3% +51.0% 8.631e+11 ± 4% perf-stat.branch-loads
5.885e+09 ± 7% +69.6% 9.981e+09 ± 8% perf-stat.branch-misses
1.778e+11 ± 5% +44.2% 2.564e+11 ± 4% perf-stat.bus-cycles
7.914e+10 ± 6% +38.9% 1.099e+11 ± 5% perf-stat.cache-references
44519137 ± 0% +121.2% 98455560 ± 2% perf-stat.context-switches
4.758e+12 ± 3% +42.2% 6.765e+12 ± 4% perf-stat.cpu-cycles
422734 ± 2% +113.7% 903275 ± 3% perf-stat.cpu-migrations
1.278e+10 ± 3% +35.1% 1.727e+10 ± 4% perf-stat.dTLB-load-misses
7.029e+11 ± 4% +44.3% 1.014e+12 ± 5% perf-stat.dTLB-loads
2.886e+08 ± 4% +139.9% 6.922e+08 ± 5% perf-stat.dTLB-store-misses
3.995e+11 ± 8% +45.3% 5.807e+11 ± 3% perf-stat.dTLB-stores
1.312e+09 ± 3% +47.0% 1.928e+09 ± 7% perf-stat.iTLB-loads
2.929e+12 ± 2% +38.8% 4.064e+12 ± 6% perf-stat.instructions
729801 ± 2% +50.8% 1100280 ± 2% perf-stat.minor-faults
1.071e+08 ± 8% +14.4% 1.224e+08 ± 6% perf-stat.node-store-misses
729789 ± 2% +50.8% 1100266 ± 2% perf-stat.page-faults
3.922e+12 ± 3% +47.2% 5.775e+12 ± 4% perf-stat.ref-cycles
6824 ± 0% +55.1% 10582 ± 0% sched_debug.cfs_rq:/.exec_clock.avg
28828 ± 12% +49.1% 42992 ± 6% sched_debug.cfs_rq:/.exec_clock.max
30.22 ± 11% +95.5% 59.08 ± 7% sched_debug.cfs_rq:/.exec_clock.min
7993 ± 6% +50.5% 12033 ± 2% sched_debug.cfs_rq:/.exec_clock.stddev
25.89 ± 18% -28.4% 18.53 ± 21% sched_debug.cfs_rq:/.load_avg.avg
7337 ± 0% +51.6% 11121 ± 0% sched_debug.cfs_rq:/.min_vruntime.avg
34800 ± 9% +43.2% 49818 ± 5% sched_debug.cfs_rq:/.min_vruntime.max
8745 ± 6% +46.1% 12773 ± 2% sched_debug.cfs_rq:/.min_vruntime.stddev
5.47 ± 16% -29.1% 3.88 ± 15% sched_debug.cfs_rq:/.runnable_load_avg.avg
-32162 ±-16% +39.6% -44890 ±-13% sched_debug.cfs_rq:/.spread0.min
8745 ± 6% +46.1% 12774 ± 2% sched_debug.cfs_rq:/.spread0.stddev
652.00 ± 6% -22.9% 502.53 ± 6% sched_debug.cfs_rq:/.util_avg.max
138.58 ± 6% -22.4% 107.57 ± 3% sched_debug.cfs_rq:/.util_avg.stddev
203456 ± 0% +44.0% 293000 ± 0% sched_debug.cpu.clock.avg
203461 ± 0% +44.0% 293005 ± 0% sched_debug.cpu.clock.max
203450 ± 0% +44.0% 292994 ± 0% sched_debug.cpu.clock.min
203456 ± 0% +44.0% 293000 ± 0% sched_debug.cpu.clock_task.avg
203461 ± 0% +44.0% 293005 ± 0% sched_debug.cpu.clock_task.max
203450 ± 0% +44.0% 292994 ± 0% sched_debug.cpu.clock_task.min
21.62 ± 35% -36.8% 13.66 ± 28% sched_debug.cpu.cpu_load[3].stddev
336.16 ± 9% +23.4% 414.96 ± 8% sched_debug.cpu.curr->pid.avg
5526 ± 0% +38.9% 7674 ± 2% sched_debug.cpu.curr->pid.max
1227 ± 5% +31.3% 1611 ± 5% sched_debug.cpu.curr->pid.stddev
46943 ± 2% +55.3% 72908 ± 1% sched_debug.cpu.nr_load_updates.avg
70757 ± 3% +51.6% 107258 ± 3% sched_debug.cpu.nr_load_updates.max
31077 ± 12% +56.5% 48628 ± 12% sched_debug.cpu.nr_load_updates.min
10900 ± 4% +53.9% 16781 ± 3% sched_debug.cpu.nr_load_updates.stddev
305199 ± 0% +123.9% 683210 ± 0% sched_debug.cpu.nr_switches.avg
1286089 ± 12% +115.6% 2772732 ± 7% sched_debug.cpu.nr_switches.max
602.75 ± 5% +64.8% 993.43 ± 7% sched_debug.cpu.nr_switches.min
362058 ± 7% +117.3% 786749 ± 3% sched_debug.cpu.nr_switches.stddev
57.60 ± 13% +124.4% 129.24 ± 11% sched_debug.cpu.nr_uninterruptible.max
-105.13 ±-13% +217.5% -333.79 ±-11% sched_debug.cpu.nr_uninterruptible.min
22.80 ± 5% +220.7% 73.11 ± 4% sched_debug.cpu.nr_uninterruptible.stddev
304847 ± 0% +124.1% 683016 ± 0% sched_debug.cpu.sched_count.avg
1283492 ± 12% +115.9% 2771349 ± 7% sched_debug.cpu.sched_count.max
373.43 ± 8% +109.1% 780.90 ± 7% sched_debug.cpu.sched_count.min
361891 ± 7% +117.4% 786838 ± 3% sched_debug.cpu.sched_count.stddev
151704 ± 0% +124.4% 340409 ± 0% sched_debug.cpu.sched_goidle.avg
639131 ± 12% +115.5% 1377132 ± 7% sched_debug.cpu.sched_goidle.max
148.13 ± 7% +104.1% 302.30 ± 7% sched_debug.cpu.sched_goidle.min
180189 ± 7% +117.6% 392032 ± 3% sched_debug.cpu.sched_goidle.stddev
152464 ± 0% +124.2% 341851 ± 0% sched_debug.cpu.ttwu_count.avg
931253 ± 13% +78.3% 1660600 ± 7% sched_debug.cpu.ttwu_count.max
201.32 ± 7% +91.7% 385.88 ± 4% sched_debug.cpu.ttwu_count.min
215408 ± 6% +95.3% 420609 ± 3% sched_debug.cpu.ttwu_count.stddev
106.18 ± 8% +89.1% 200.76 ± 4% sched_debug.cpu.ttwu_local.min
203453 ± 0% +44.0% 292997 ± 0% sched_debug.cpu_clk
200513 ± 0% +44.5% 289817 ± 0% sched_debug.ktime
0.17 ± 0% -46.7% 0.09 ± 49% sched_debug.rt_rq:/.rt_nr_running.max
0.02 ± 17% -44.8% 0.01 ± 53% sched_debug.rt_rq:/.rt_nr_running.stddev
203453 ± 0% +44.0% 292997 ± 0% sched_debug.sched_clk
3.58 ± 9% -42.2% 2.07 ± 34% perf-profile.cycles-pp.__alloc_percpu_gfp.__percpu_counter_init.f2fs_alloc_inode.alloc_inode.new_inode_pseudo
3.73 ± 5% -44.5% 2.07 ± 34% perf-profile.cycles-pp.__blk_mq_complete_request.blk_mq_complete_request.__nvme_process_cq.nvme_irq.handle_irq_event_percpu
0.93 ± 6% -41.0% 0.55 ± 35% perf-profile.cycles-pp.__f2fs_submit_merged_bio.f2fs_write_data_pages.do_writepages.__filemap_fdatawrite_range.filemap_write_and_wait_range
0.90 ± 8% -93.3% 0.06 ±300% perf-profile.cycles-pp.__filemap_fdatawait_range.filemap_fdatawait_range.filemap_write_and_wait_range.f2fs_do_sync_file.f2fs_sync_file
6.88 ± 7% -30.3% 4.79 ± 33% perf-profile.cycles-pp.__filemap_fdatawrite_range.filemap_write_and_wait_range.f2fs_do_sync_file.f2fs_sync_file.vfs_fsync_range
1.96 ± 8% -42.4% 1.13 ± 34% perf-profile.cycles-pp.__generic_file_write_iter.f2fs_file_write_iter.__vfs_write.vfs_write.sys_write
3.81 ± 5% -44.3% 2.12 ± 34% perf-profile.cycles-pp.__nvme_process_cq.nvme_irq.handle_irq_event_percpu.handle_irq_event.handle_edge_irq
3.68 ± 9% -42.2% 2.13 ± 34% perf-profile.cycles-pp.__percpu_counter_init.f2fs_alloc_inode.alloc_inode.new_inode_pseudo.new_inode
1.59 ± 7% -43.6% 0.90 ± 34% perf-profile.cycles-pp.__percpu_counter_sum.f2fs_balance_fs.f2fs_create.path_openat.do_filp_open
2.39 ± 9% -36.4% 1.52 ± 34% perf-profile.cycles-pp.__percpu_counter_sum.f2fs_balance_fs.f2fs_write_data_page.f2fs_write_cache_pages.f2fs_write_data_pages
2.79 ± 7% -40.8% 1.65 ± 34% perf-profile.cycles-pp.__vfs_write.vfs_write.sys_write.entry_SYSCALL_64_fastpath
2.91 ± 6% -45.2% 1.60 ± 34% perf-profile.cycles-pp.__wake_up.__wake_up_bit.end_page_writeback.f2fs_write_end_io.bio_endio
2.92 ± 6% -45.1% 1.61 ± 34% perf-profile.cycles-pp.__wake_up_bit.end_page_writeback.f2fs_write_end_io.bio_endio.blk_update_request
2.88 ± 6% -45.3% 1.57 ± 34% perf-profile.cycles-pp.__wake_up_common.__wake_up.__wake_up_bit.end_page_writeback.f2fs_write_end_io
0.98 ± 11% -62.2% 0.37 ± 81% perf-profile.cycles-pp.__writeback_inodes_wb.wb_writeback.wb_workfn.process_one_work.worker_thread
2.56 ± 7% -44.9% 1.41 ± 34% perf-profile.cycles-pp.activate_task.ttwu_do_activate.try_to_wake_up.default_wake_function.autoremove_wake_function
4.04 ± 8% -42.3% 2.33 ± 34% perf-profile.cycles-pp.alloc_inode.new_inode_pseudo.new_inode.f2fs_new_inode.f2fs_create
2.86 ± 6% -45.3% 1.56 ± 34% perf-profile.cycles-pp.autoremove_wake_function.wake_bit_function.__wake_up_common.__wake_up.__wake_up_bit
3.39 ± 6% -45.2% 1.86 ± 34% perf-profile.cycles-pp.bio_endio.blk_update_request.blk_mq_end_request.nvme_complete_rq.__blk_mq_complete_request
3.73 ± 5% -44.5% 2.07 ± 34% perf-profile.cycles-pp.blk_mq_complete_request.__nvme_process_cq.nvme_irq.handle_irq_event_percpu.handle_irq_event
3.65 ± 5% -44.7% 2.02 ± 34% perf-profile.cycles-pp.blk_mq_end_request.nvme_complete_rq.__blk_mq_complete_request.blk_mq_complete_request.__nvme_process_cq
3.50 ± 5% -45.2% 1.92 ± 34% perf-profile.cycles-pp.blk_update_request.blk_mq_end_request.nvme_complete_rq.__blk_mq_complete_request.blk_mq_complete_request
2.85 ± 6% -45.3% 1.56 ± 34% perf-profile.cycles-pp.default_wake_function.autoremove_wake_function.wake_bit_function.__wake_up_common.__wake_up
4.26 ± 6% -43.9% 2.39 ± 34% perf-profile.cycles-pp.do_IRQ.ret_from_intr.cpuidle_enter.call_cpuidle.cpu_startup_entry
20.48 ± 5% -21.1% 16.16 ± 34% perf-profile.cycles-pp.do_filp_open.do_sys_open.sys_open.entry_SYSCALL_64_fastpath
20.64 ± 5% -21.3% 16.25 ± 34% perf-profile.cycles-pp.do_sys_open.sys_open.entry_SYSCALL_64_fastpath
0.81 ± 18% -85.8% 0.11 ±200% perf-profile.cycles-pp.do_write_page.write_data_page.do_write_data_page.f2fs_write_data_page.f2fs_write_cache_pages
6.86 ± 7% -30.4% 4.78 ± 33% perf-profile.cycles-pp.do_writepages.__filemap_fdatawrite_range.filemap_write_and_wait_range.f2fs_do_sync_file.f2fs_sync_file
3.20 ± 6% -44.7% 1.77 ± 34% perf-profile.cycles-pp.end_page_writeback.f2fs_write_end_io.bio_endio.blk_update_request.blk_mq_end_request
2.54 ± 7% -44.7% 1.40 ± 33% perf-profile.cycles-pp.enqueue_task_fair.activate_task.ttwu_do_activate.try_to_wake_up.default_wake_function
3.88 ± 9% -42.5% 2.23 ± 34% perf-profile.cycles-pp.f2fs_alloc_inode.alloc_inode.new_inode_pseudo.new_inode.f2fs_new_inode
1.99 ± 5% -49.0% 1.01 ± 34% perf-profile.cycles-pp.f2fs_balance_fs.f2fs_create.path_openat.do_filp_open.do_sys_open
3.12 ± 9% -43.5% 1.76 ± 34% perf-profile.cycles-pp.f2fs_balance_fs.f2fs_write_data_page.f2fs_write_cache_pages.f2fs_write_data_pages.do_writepages
1.18 ± 6% -47.6% 0.62 ± 34% perf-profile.cycles-pp.f2fs_dentry_hash.find_in_level.f2fs_find_entry.f2fs_lookup.path_openat
2.73 ± 7% -41.1% 1.61 ± 34% perf-profile.cycles-pp.f2fs_file_write_iter.__vfs_write.vfs_write.sys_write.entry_SYSCALL_64_fastpath
7.86 ± 8% -52.0% 3.77 ± 34% perf-profile.cycles-pp.f2fs_find_entry.f2fs_lookup.path_openat.do_filp_open.do_sys_open
7.95 ± 8% -51.7% 3.84 ± 34% perf-profile.cycles-pp.f2fs_lookup.path_openat.do_filp_open.do_sys_open.sys_open
4.60 ± 7% -42.4% 2.65 ± 34% perf-profile.cycles-pp.f2fs_new_inode.f2fs_create.path_openat.do_filp_open.do_sys_open
1.12 ± 3% -41.5% 0.66 ± 35% perf-profile.cycles-pp.f2fs_wait_on_page_writeback.part.31.f2fs_wait_on_page_writeback.wait_on_node_pages_writeback.f2fs_do_sync_file.f2fs_sync_file
1.14 ± 3% -41.6% 0.67 ± 35% perf-profile.cycles-pp.f2fs_wait_on_page_writeback.wait_on_node_pages_writeback.f2fs_do_sync_file.f2fs_sync_file.vfs_fsync_range
5.46 ± 7% -27.3% 3.97 ± 34% perf-profile.cycles-pp.f2fs_write_cache_pages.f2fs_write_data_pages.do_writepages.__filemap_fdatawrite_range.filemap_write_and_wait_range
4.81 ± 8% -25.6% 3.57 ± 34% perf-profile.cycles-pp.f2fs_write_data_page.f2fs_write_cache_pages.f2fs_write_data_pages.do_writepages.__filemap_fdatawrite_range
6.86 ± 7% -30.4% 4.77 ± 33% perf-profile.cycles-pp.f2fs_write_data_pages.do_writepages.__filemap_fdatawrite_range.filemap_write_and_wait_range.f2fs_do_sync_file
3.38 ± 6% -45.1% 1.85 ± 34% perf-profile.cycles-pp.f2fs_write_end_io.bio_endio.blk_update_request.blk_mq_end_request.nvme_complete_rq
0.92 ± 9% -87.6% 0.11 ±201% perf-profile.cycles-pp.filemap_fdatawait_range.filemap_write_and_wait_range.f2fs_do_sync_file.f2fs_sync_file.vfs_fsync_range
8.18 ± 7% -35.5% 5.27 ± 34% perf-profile.cycles-pp.filemap_write_and_wait_range.f2fs_do_sync_file.f2fs_sync_file.vfs_fsync_range.do_fsync
1.28 ± 4% -65.3% 0.45 ± 66% perf-profile.cycles-pp.find_data_page.find_in_level.f2fs_find_entry.f2fs_lookup.path_openat
7.80 ± 8% -52.1% 3.74 ± 34% perf-profile.cycles-pp.find_in_level.f2fs_find_entry.f2fs_lookup.path_openat.do_filp_open
4.86 ± 9% -51.2% 2.37 ± 35% perf-profile.cycles-pp.find_target_dentry.find_in_level.f2fs_find_entry.f2fs_lookup.path_openat
1.80 ± 9% -43.4% 1.02 ± 33% perf-profile.cycles-pp.generic_perform_write.__generic_file_write_iter.f2fs_file_write_iter.__vfs_write.vfs_write
4.05 ± 6% -44.1% 2.26 ± 34% perf-profile.cycles-pp.handle_edge_irq.handle_irq.do_IRQ.ret_from_intr.cpuidle_enter
4.08 ± 6% -43.9% 2.29 ± 34% perf-profile.cycles-pp.handle_irq.do_IRQ.ret_from_intr.cpuidle_enter.call_cpuidle
3.92 ± 5% -44.0% 2.20 ± 34% perf-profile.cycles-pp.handle_irq_event.handle_edge_irq.handle_irq.do_IRQ.ret_from_intr
3.92 ± 5% -44.2% 2.19 ± 34% perf-profile.cycles-pp.handle_irq_event_percpu.handle_irq_event.handle_edge_irq.handle_irq.do_IRQ
1.57 ± 9% -43.7% 0.88 ± 35% perf-profile.cycles-pp.kthread.ret_from_fork
1.87 ± 9% -40.5% 1.11 ± 34% perf-profile.cycles-pp.memset_erms.__alloc_percpu_gfp.__percpu_counter_init.f2fs_alloc_inode.alloc_inode
4.10 ± 8% -42.4% 2.36 ± 34% perf-profile.cycles-pp.new_inode.f2fs_new_inode.f2fs_create.path_openat.do_filp_open
4.05 ± 8% -42.4% 2.33 ± 34% perf-profile.cycles-pp.new_inode_pseudo.new_inode.f2fs_new_inode.f2fs_create.path_openat
3.70 ± 5% -44.6% 2.05 ± 34% perf-profile.cycles-pp.nvme_complete_rq.__blk_mq_complete_request.blk_mq_complete_request.__nvme_process_cq.nvme_irq
3.83 ± 5% -44.3% 2.14 ± 34% perf-profile.cycles-pp.nvme_irq.handle_irq_event_percpu.handle_irq_event.handle_edge_irq.handle_irq
20.41 ± 6% -21.0% 16.12 ± 34% perf-profile.cycles-pp.path_openat.do_filp_open.do_sys_open.sys_open.entry_SYSCALL_64_fastpath
1.51 ± 10% -43.7% 0.85 ± 34% perf-profile.cycles-pp.pcpu_alloc.__alloc_percpu_gfp.__percpu_counter_init.f2fs_alloc_inode.alloc_inode
1.24 ± 10% -46.7% 0.66 ± 36% perf-profile.cycles-pp.process_one_work.worker_thread.kthread.ret_from_fork
1.57 ± 9% -43.7% 0.88 ± 35% perf-profile.cycles-pp.ret_from_fork
4.22 ± 6% -42.9% 2.41 ± 34% perf-profile.cycles-pp.ret_from_intr.cpuidle_enter.call_cpuidle.cpu_startup_entry.start_secondary
20.66 ± 5% -21.3% 16.27 ± 34% perf-profile.cycles-pp.sys_open.entry_SYSCALL_64_fastpath
2.93 ± 7% -40.9% 1.73 ± 34% perf-profile.cycles-pp.sys_write.entry_SYSCALL_64_fastpath
2.82 ± 6% -45.2% 1.55 ± 34% perf-profile.cycles-pp.try_to_wake_up.default_wake_function.autoremove_wake_function.wake_bit_function.__wake_up_common
2.64 ± 6% -44.9% 1.45 ± 34% perf-profile.cycles-pp.ttwu_do_activate.try_to_wake_up.default_wake_function.autoremove_wake_function.wake_bit_function
2.88 ± 7% -41.2% 1.69 ± 34% perf-profile.cycles-pp.vfs_write.sys_write.entry_SYSCALL_64_fastpath
1.43 ± 3% -43.0% 0.82 ± 34% perf-profile.cycles-pp.wait_on_node_pages_writeback.f2fs_do_sync_file.f2fs_sync_file.vfs_fsync_range.do_fsync
2.86 ± 6% -45.2% 1.57 ± 34% perf-profile.cycles-pp.wake_bit_function.__wake_up_common.__wake_up.__wake_up_bit.end_page_writeback
1.05 ± 10% -51.3% 0.51 ± 51% perf-profile.cycles-pp.wb_workfn.process_one_work.worker_thread.kthread.ret_from_fork
1.05 ± 10% -51.3% 0.51 ± 51% perf-profile.cycles-pp.wb_writeback.wb_workfn.process_one_work.worker_thread.kthread
1.25 ± 10% -46.7% 0.66 ± 36% perf-profile.cycles-pp.worker_thread.kthread.ret_from_fork
0.94 ± 11% -62.2% 0.36 ± 81% perf-profile.cycles-pp.writeback_sb_inodes.__writeback_inodes_wb.wb_writeback.wb_workfn.process_one_work
12602 ± 10% +605.7% 88933 ± 4% latency_stats.avg.f2fs_sync_fs.[f2fs].f2fs_balance_fs_bg.[f2fs].f2fs_balance_fs.[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].vfs_fsync_range
117.20 ± 38% +14638.0% 17272 ± 10% latency_stats.avg.f2fs_sync_fs.[f2fs].f2fs_do_sync_file.[f2fs].f2fs_sync_file.[f2fs].vfs_fsync_range.do_fsync.SyS_fsync.entry_SYSCALL_64_fastpath
0.00 ± -1% +Inf% 6536 ± 74% latency_stats.avg.rcu_sync_enter.percpu_down_write.get_node_info.[f2fs].new_node_page.[f2fs].new_inode_page.[f2fs].init_inode_metadata.[f2fs].f2fs_add_regular_entry.[f2fs].__f2fs_add_link.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open
110089 ± 5% -100.0% 0.00 ± -1% latency_stats.hits.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
123952 ± 2% -100.0% 0.00 ± -1% latency_stats.hits.call_rwsem_down_read_failed.get_node_info.[f2fs].new_node_page.[f2fs].new_inode_page.[f2fs].init_inode_metadata.[f2fs].f2fs_add_regular_entry.[f2fs].__f2fs_add_link.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open.SyS_open
10543 ± 6% -100.0% 0.00 ± -1% latency_stats.hits.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_fdatawrite.sync_dirty_inodes.[f2fs].write_checkpoint.[f2fs]
417255 ± 1% -100.0% 0.00 ± -1% latency_stats.hits.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]
96289 ± 4% -100.0% 0.00 ± -1% latency_stats.hits.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
116316 ± 5% -100.0% 0.00 ± -1% latency_stats.hits.call_rwsem_down_read_failed.need_dentry_mark.[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
96158 ± 3% -100.0% 0.00 ± -1% latency_stats.hits.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
0.00 ± -1% +Inf% 1238583 ± 1% latency_stats.hits.call_rwsem_down_read_failed.percpu_down_read.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
0.00 ± -1% +Inf% 2911068 ± 7% latency_stats.hits.call_rwsem_down_read_failed.percpu_down_read.get_node_info.[f2fs].new_node_page.[f2fs].new_inode_page.[f2fs].init_inode_metadata.[f2fs].f2fs_add_regular_entry.[f2fs].__f2fs_add_link.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open
0.00 ± -1% +Inf% 6208007 ± 2% latency_stats.hits.call_rwsem_down_read_failed.percpu_down_read.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]
0.00 ± -1% +Inf% 2257817 ± 10% latency_stats.hits.call_rwsem_down_read_failed.percpu_down_read.is_checkpointed_node.[f2fs].f2fs_do_sync_file.[f2fs].f2fs_sync_file.[f2fs].vfs_fsync_range.do_fsync.SyS_fsync.entry_SYSCALL_64_fastpath
0.00 ± -1% +Inf% 2727789 ± 1% latency_stats.hits.call_rwsem_down_read_failed.percpu_down_read.need_dentry_mark.[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
0.00 ± -1% +Inf% 2227301 ± 2% latency_stats.hits.call_rwsem_down_read_failed.percpu_down_read.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
12787 ± 9% -83.0% 2177 ± 9% latency_stats.hits.call_rwsem_down_write_failed.__f2fs_submit_merged_bio.[f2fs].f2fs_submit_merged_bio_cond.[f2fs].f2fs_wait_on_page_writeback.[f2fs].f2fs_wait_on_page_writeback.[f2fs].wait_on_node_pages_writeback.[f2fs].f2fs_do_sync_file.[f2fs].f2fs_sync_file.[f2fs].vfs_fsync_range.do_fsync.SyS_fsync.entry_SYSCALL_64_fastpath
140416 ± 3% -100.0% 0.00 ± -1% 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_regular_entry.[f2fs].__f2fs_add_link.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open.SyS_open
0.00 ± -1% +Inf% 2617435 ± 9% latency_stats.hits.call_rwsem_down_write_failed.percpu_down_write.get_node_info.[f2fs].new_node_page.[f2fs].new_inode_page.[f2fs].init_inode_metadata.[f2fs].f2fs_add_regular_entry.[f2fs].__f2fs_add_link.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open
0.00 ± -1% +Inf% 2581381 ± 1% latency_stats.hits.call_rwsem_down_write_failed.percpu_down_write.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
0.00 ± -1% +Inf% 5283128 ± 3% latency_stats.hits.call_rwsem_down_write_failed.percpu_down_write.set_node_addr.[f2fs].new_node_page.[f2fs].new_inode_page.[f2fs].init_inode_metadata.[f2fs].f2fs_add_regular_entry.[f2fs].__f2fs_add_link.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open
193673 ± 4% -100.0% 0.00 ± -1% latency_stats.hits.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
271526 ± 3% -100.0% 0.00 ± -1% latency_stats.hits.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_add_link.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open.SyS_open
0.00 ± -1% +Inf% 11445 ± 20% latency_stats.hits.percpu_down_write.get_node_info.[f2fs].new_node_page.[f2fs].new_inode_page.[f2fs].init_inode_metadata.[f2fs].f2fs_add_regular_entry.[f2fs].__f2fs_add_link.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open.SyS_open
0.00 ± -1% +Inf% 24410 ± 15% latency_stats.hits.percpu_down_write.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
0.00 ± -1% +Inf% 26517 ± 9% latency_stats.hits.percpu_down_write.set_node_addr.[f2fs].new_node_page.[f2fs].new_inode_page.[f2fs].init_inode_metadata.[f2fs].f2fs_add_regular_entry.[f2fs].__f2fs_add_link.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open.SyS_open
54803 ± 8% -100.0% 0.00 ± -1% latency_stats.max.call_rwsem_down_read_failed.f2fs_new_inode.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open.SyS_open.entry_SYSCALL_64_fastpath
7982 ± 76% -100.0% 0.00 ± -1% latency_stats.max.call_rwsem_down_read_failed.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].vfs_fsync_range.do_fsync.SyS_fsync
0.00 ± -1% +Inf% 9196 ± 32% latency_stats.max.call_rwsem_down_read_failed.percpu_down_read.f2fs_new_inode.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open.SyS_open.entry_SYSCALL_64_fastpath
0.00 ± -1% +Inf% 15634 ±151% latency_stats.max.call_rwsem_down_read_failed.percpu_down_read.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].vfs_fsync_range.do_fsync
5996 ± 54% -100.0% 0.00 ± -1% latency_stats.max.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
18794 ± 50% -99.8% 38.20 ± 36% latency_stats.max.call_rwsem_down_write_failed.write_checkpoint.[f2fs].f2fs_sync_fs.[f2fs].f2fs_balance_fs_bg.[f2fs].f2fs_balance_fs.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open.SyS_open.entry_SYSCALL_64_fastpath
25320 ± 17% -99.9% 18.30 ± 42% latency_stats.max.call_rwsem_down_write_failed.write_checkpoint.[f2fs].f2fs_sync_fs.[f2fs].f2fs_balance_fs_bg.[f2fs].f2fs_balance_fs.[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]
352.80 ± 66% +25704.3% 91037 ± 7% latency_stats.max.f2fs_sync_fs.[f2fs].f2fs_do_sync_file.[f2fs].f2fs_sync_file.[f2fs].vfs_fsync_range.do_fsync.SyS_fsync.entry_SYSCALL_64_fastpath
0.00 ± -1% +Inf% 20403 ±131% latency_stats.max.percpu_down_write.write_checkpoint.[f2fs].f2fs_sync_fs.[f2fs].f2fs_balance_fs_bg.[f2fs].f2fs_balance_fs.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open.SyS_open.entry_SYSCALL_64_fastpath
0.00 ± -1% +Inf% 11786 ± 39% latency_stats.max.percpu_down_write.write_checkpoint.[f2fs].f2fs_sync_fs.[f2fs].f2fs_balance_fs_bg.[f2fs].f2fs_balance_fs.[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]
0.00 ± -1% +Inf% 18121 ±153% latency_stats.max.rcu_sync_enter.percpu_down_write.get_node_info.[f2fs].new_node_page.[f2fs].new_inode_page.[f2fs].init_inode_metadata.[f2fs].f2fs_add_regular_entry.[f2fs].__f2fs_add_link.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open
0.00 ± -1% +Inf% 23677 ± 90% latency_stats.max.rcu_sync_enter.percpu_down_write.set_node_addr.[f2fs].f2fs_write_node_page.[f2fs].sync_node_pages.[f2fs].write_checkpoint.[f2fs].f2fs_sync_fs.[f2fs].f2fs_balance_fs_bg.[f2fs].f2fs_balance_fs.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open
0.00 ± -1% +Inf% 14660 ± 34% latency_stats.max.rcu_sync_enter.percpu_down_write.set_node_addr.[f2fs].f2fs_write_node_page.[f2fs].sync_node_pages.[f2fs].write_checkpoint.[f2fs].f2fs_sync_fs.[f2fs].f2fs_balance_fs_bg.[f2fs].f2fs_balance_fs.[f2fs].f2fs_write_data_page.[f2fs].f2fs_write_cache_pages.[f2fs].f2fs_write_data_pages.[f2fs]
0.00 ± -1% +Inf% 16700 ±162% latency_stats.max.rcu_sync_enter.percpu_down_write.try_to_free_nats.[f2fs].f2fs_balance_fs_bg.[f2fs].f2fs_balance_fs.[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]
51205 ± 11% -80.7% 9868 ± 29% latency_stats.max.wait_on_page_bit.f2fs_wait_on_page_writeback.[f2fs].f2fs_wait_on_page_writeback.[f2fs].wait_on_node_pages_writeback.[f2fs].f2fs_do_sync_file.[f2fs].f2fs_sync_file.[f2fs].vfs_fsync_range.do_fsync.SyS_fsync.entry_SYSCALL_64_fastpath
123642 ± 26% -100.0% 0.00 ± -1% latency_stats.sum.bt_get.blk_mq_get_tag.__blk_mq_alloc_request.blk_mq_map_request.blk_mq_make_request.generic_make_request.submit_bio.__submit_merged_bio.[f2fs].f2fs_submit_page_mbio.[f2fs].write_meta_page.[f2fs].f2fs_write_meta_page.[f2fs].sync_meta_pages.[f2fs]
19533 ± 10% -100.0% 0.00 ± -1% latency_stats.sum.call_rwsem_down_read_failed.build_free_nids.[f2fs].f2fs_balance_fs_bg.[f2fs].f2fs_balance_fs.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open.SyS_open.entry_SYSCALL_64_fastpath
145779 ± 11% -100.0% 0.00 ± -1% latency_stats.sum.call_rwsem_down_read_failed.build_free_nids.[f2fs].f2fs_balance_fs_bg.[f2fs].f2fs_balance_fs.[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]
23239 ± 49% -100.0% 0.00 ± -1% latency_stats.sum.call_rwsem_down_read_failed.f2fs_convert_inline_inode.[f2fs].f2fs_preallocate_blocks.[f2fs].f2fs_file_write_iter.[f2fs].__vfs_write.vfs_write.SyS_write.entry_SYSCALL_64_fastpath
15290 ± 17% -100.0% 0.00 ± -1% latency_stats.sum.call_rwsem_down_read_failed.f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open.SyS_open.entry_SYSCALL_64_fastpath
6123697 ± 6% -100.0% 0.00 ± -1% latency_stats.sum.call_rwsem_down_read_failed.f2fs_new_inode.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open.SyS_open.entry_SYSCALL_64_fastpath
34789 ± 22% -100.0% 0.00 ± -1% latency_stats.sum.call_rwsem_down_read_failed.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].vfs_fsync_range.do_fsync.SyS_fsync
472390 ± 4% -100.0% 0.00 ± -1% 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
1526265 ± 5% -100.0% 0.00 ± -1% latency_stats.sum.call_rwsem_down_read_failed.get_node_info.[f2fs].new_node_page.[f2fs].new_inode_page.[f2fs].init_inode_metadata.[f2fs].f2fs_add_regular_entry.[f2fs].__f2fs_add_link.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open.SyS_open
66045 ± 6% -100.0% 0.00 ± -1% 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_fdatawrite.sync_dirty_inodes.[f2fs].write_checkpoint.[f2fs]
2547237 ± 2% -100.0% 0.00 ± -1% 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]
1181887 ± 2% -100.0% 0.00 ± -1% 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
879407 ± 2% -100.0% 0.00 ± -1% latency_stats.sum.call_rwsem_down_read_failed.need_dentry_mark.[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
658290 ± 3% -100.0% 0.00 ± -1% 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
0.00 ± -1% +Inf% 56722 ± 8% latency_stats.sum.call_rwsem_down_read_failed.percpu_down_read.build_free_nids.[f2fs].f2fs_balance_fs_bg.[f2fs].f2fs_balance_fs.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open.SyS_open.entry_SYSCALL_64_fastpath
0.00 ± -1% +Inf% 201027 ± 7% latency_stats.sum.call_rwsem_down_read_failed.percpu_down_read.build_free_nids.[f2fs].f2fs_balance_fs_bg.[f2fs].f2fs_balance_fs.[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]
0.00 ± -1% +Inf% 7958 ± 50% latency_stats.sum.call_rwsem_down_read_failed.percpu_down_read.f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open.SyS_open.entry_SYSCALL_64_fastpath
0.00 ± -1% +Inf% 73190 ± 11% latency_stats.sum.call_rwsem_down_read_failed.percpu_down_read.f2fs_new_inode.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open.SyS_open.entry_SYSCALL_64_fastpath
0.00 ± -1% +Inf% 47053 ± 52% latency_stats.sum.call_rwsem_down_read_failed.percpu_down_read.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].vfs_fsync_range.do_fsync
0.00 ± -1% +Inf% 11815766 ± 5% latency_stats.sum.call_rwsem_down_read_failed.percpu_down_read.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
0.00 ± -1% +Inf% 21331651 ± 17% latency_stats.sum.call_rwsem_down_read_failed.percpu_down_read.get_node_info.[f2fs].new_node_page.[f2fs].new_inode_page.[f2fs].init_inode_metadata.[f2fs].f2fs_add_regular_entry.[f2fs].__f2fs_add_link.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open
0.00 ± -1% +Inf% 48966334 ± 11% latency_stats.sum.call_rwsem_down_read_failed.percpu_down_read.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]
0.00 ± -1% +Inf% 17894265 ± 10% latency_stats.sum.call_rwsem_down_read_failed.percpu_down_read.is_checkpointed_node.[f2fs].f2fs_do_sync_file.[f2fs].f2fs_sync_file.[f2fs].vfs_fsync_range.do_fsync.SyS_fsync.entry_SYSCALL_64_fastpath
0.00 ± -1% +Inf% 18580100 ± 4% latency_stats.sum.call_rwsem_down_read_failed.percpu_down_read.need_dentry_mark.[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
0.00 ± -1% +Inf% 27464359 ± 6% latency_stats.sum.call_rwsem_down_read_failed.percpu_down_read.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
22780 ± 8% -84.5% 3539 ± 10% latency_stats.sum.call_rwsem_down_write_failed.__f2fs_submit_merged_bio.[f2fs].f2fs_submit_merged_bio_cond.[f2fs].f2fs_wait_on_page_writeback.[f2fs].f2fs_wait_on_page_writeback.[f2fs].wait_on_node_pages_writeback.[f2fs].f2fs_do_sync_file.[f2fs].f2fs_sync_file.[f2fs].vfs_fsync_range.do_fsync.SyS_fsync.entry_SYSCALL_64_fastpath
965007 ± 5% -100.0% 0.00 ± -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_regular_entry.[f2fs].__f2fs_add_link.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open.SyS_open
0.00 ± -1% +Inf% 7963263 ± 15% latency_stats.sum.call_rwsem_down_write_failed.percpu_down_write.get_node_info.[f2fs].new_node_page.[f2fs].new_inode_page.[f2fs].init_inode_metadata.[f2fs].f2fs_add_regular_entry.[f2fs].__f2fs_add_link.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open
0.00 ± -1% +Inf% 7766380 ± 4% latency_stats.sum.call_rwsem_down_write_failed.percpu_down_write.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
0.00 ± -1% +Inf% 22993263 ± 10% latency_stats.sum.call_rwsem_down_write_failed.percpu_down_write.set_node_addr.[f2fs].new_node_page.[f2fs].new_inode_page.[f2fs].init_inode_metadata.[f2fs].f2fs_add_regular_entry.[f2fs].__f2fs_add_link.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open
0.00 ± -1% +Inf% 24094 ± 11% latency_stats.sum.call_rwsem_down_write_failed.percpu_down_write.try_to_free_nats.[f2fs].f2fs_balance_fs_bg.[f2fs].f2fs_balance_fs.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open.SyS_open.entry_SYSCALL_64_fastpath
0.00 ± -1% +Inf% 96995 ± 6% latency_stats.sum.call_rwsem_down_write_failed.percpu_down_write.try_to_free_nats.[f2fs].f2fs_balance_fs_bg.[f2fs].f2fs_balance_fs.[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]
1230935 ± 4% -100.0% 0.00 ± -1% 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
1133345 ± 5% -100.0% 0.00 ± -1% 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_add_link.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open.SyS_open
59569 ± 41% -99.4% 369.80 ± 18% latency_stats.sum.call_rwsem_down_write_failed.write_checkpoint.[f2fs].f2fs_sync_fs.[f2fs].f2fs_balance_fs_bg.[f2fs].f2fs_balance_fs.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open.SyS_open.entry_SYSCALL_64_fastpath
231014 ± 22% -100.0% 103.90 ± 39% latency_stats.sum.call_rwsem_down_write_failed.write_checkpoint.[f2fs].f2fs_sync_fs.[f2fs].f2fs_balance_fs_bg.[f2fs].f2fs_balance_fs.[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]
4537935 ± 27% +306.3% 18436209 ± 6% latency_stats.sum.f2fs_sync_fs.[f2fs].f2fs_balance_fs_bg.[f2fs].f2fs_balance_fs.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open.SyS_open.entry_SYSCALL_64_fastpath
1473434 ± 17% +530.5% 9289385 ± 11% latency_stats.sum.f2fs_sync_fs.[f2fs].f2fs_balance_fs_bg.[f2fs].f2fs_balance_fs.[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].vfs_fsync_range
1018 ± 52% +80360.5% 819812 ± 11% 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
0.00 ± -1% +Inf% 517363 ± 5% latency_stats.sum.percpu_down_write.get_node_info.[f2fs].new_node_page.[f2fs].new_inode_page.[f2fs].init_inode_metadata.[f2fs].f2fs_add_regular_entry.[f2fs].__f2fs_add_link.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open.SyS_open
0.00 ± -1% +Inf% 890753 ± 3% latency_stats.sum.percpu_down_write.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
0.00 ± -1% +Inf% 258657 ± 10% latency_stats.sum.percpu_down_write.set_node_addr.[f2fs].new_node_page.[f2fs].new_inode_page.[f2fs].init_inode_metadata.[f2fs].f2fs_add_regular_entry.[f2fs].__f2fs_add_link.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open.SyS_open
0.00 ± -1% +Inf% 70546 ± 50% latency_stats.sum.percpu_down_write.write_checkpoint.[f2fs].f2fs_sync_fs.[f2fs].f2fs_balance_fs_bg.[f2fs].f2fs_balance_fs.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open.SyS_open.entry_SYSCALL_64_fastpath
0.00 ± -1% +Inf% 65607 ± 25% latency_stats.sum.percpu_down_write.write_checkpoint.[f2fs].f2fs_sync_fs.[f2fs].f2fs_balance_fs_bg.[f2fs].f2fs_balance_fs.[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]
0.00 ± -1% +Inf% 50572 ± 81% latency_stats.sum.rcu_sync_enter.percpu_down_write.get_node_info.[f2fs].new_node_page.[f2fs].new_inode_page.[f2fs].init_inode_metadata.[f2fs].f2fs_add_regular_entry.[f2fs].__f2fs_add_link.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open
0.00 ± -1% +Inf% 123301 ± 26% latency_stats.sum.rcu_sync_enter.percpu_down_write.set_node_addr.[f2fs].f2fs_write_node_page.[f2fs].sync_node_pages.[f2fs].write_checkpoint.[f2fs].f2fs_sync_fs.[f2fs].f2fs_balance_fs_bg.[f2fs].f2fs_balance_fs.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open
0.00 ± -1% +Inf% 110076 ± 10% latency_stats.sum.rcu_sync_enter.percpu_down_write.set_node_addr.[f2fs].f2fs_write_node_page.[f2fs].sync_node_pages.[f2fs].write_checkpoint.[f2fs].f2fs_sync_fs.[f2fs].f2fs_balance_fs_bg.[f2fs].f2fs_balance_fs.[f2fs].f2fs_write_data_page.[f2fs].f2fs_write_cache_pages.[f2fs].f2fs_write_data_pages.[f2fs]
0.00 ± -1% +Inf% 52574 ± 79% latency_stats.sum.rcu_sync_enter.percpu_down_write.try_to_free_nats.[f2fs].f2fs_balance_fs_bg.[f2fs].f2fs_balance_fs.[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]
689963 ± 22% -98.9% 7538 ±238% latency_stats.sum.wait_on_page_bit.f2fs_wait_on_page_writeback.[f2fs].f2fs_wait_on_page_writeback.[f2fs].f2fs_add_regular_entry.[f2fs].__f2fs_add_link.[f2fs].f2fs_create.[f2fs].path_openat.do_filp_open.do_sys_open.SyS_open.entry_SYSCALL_64_fastpath
9358 ± 44% -95.3% 441.00 ± 39% 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_inode.[f2fs].f2fs_do_sync_file.[f2fs].f2fs_sync_file.[f2fs].vfs_fsync_range.do_fsync.SyS_fsync.entry_SYSCALL_64_fastpath
fsmark.time.system_time
1800 ++-------------------------------------------------------------------+
| O |
1600 OOO OOOOOO OOOOOO OOOOOO OOOO O OOOOOO OOOOOO OOOOO OOOOOO O |
1400 ++ |
| |
1200 ***.** * *.*** **.******.* * |
1000 ++ ****.******.******.*** * * *** *.******.******.***
| |
800 ++ |
600 ++ |
| |
400 ++ |
200 ++ |
| |
0 ++--------------------------------------------O----------------------+
fsmark.time.elapsed_time
600 ++--------------------------------------------------------------------+
| |
500 OOO OOOOOO OOOOO OOOOO OOOOOO OOOOO OOOO O O O OOOO OO O O |
| O O O O O O |
| |
400 ++ * * * |
***.******.*****.*****.***** + ****. ****.* ****.** **.*****. *** *. *
300 ++ * * * * **|
| |
200 ++ |
| |
| |
100 ++ |
| |
0 ++--------------------------------------------O-----------------------+
fsmark.time.elapsed_time.max
600 ++--------------------------------------------------------------------+
| |
500 OOO OOOOOO OOOOO OOOOO OOOOOO OOOOO OOOO O O O OOOO OO O O |
| O O O O O O |
| |
400 ++ * * * |
***.******.*****.*****.***** + ****. ****.* ****.** **.*****. *** *. *
300 ++ * * * * **|
| |
200 ++ |
| |
| |
100 ++ |
| |
0 ++--------------------------------------------O-----------------------+
fsmark.time.voluntary_context_switches
6e+07 ++------------------------------------------------------------------+
| |
5e+07 O+ OO O O O OO O OO O OO O O OO O OO |
|OOO OOOO OO OOO OOO OO O O O O OO O OOOOOO |
| |
4e+07 ++ |
| |
3e+07 ++ |
| *****.*******.******.** ***.*******. |
2e+07 ****.* *****.*******.*** ******.****
| |
| |
1e+07 ++ |
| |
0 ++-------------------------------------------O----------------------+
fsmark.files_per_sec
35000 ++------------------------------------------------------------------+
| |
30000 ++ * * ** .** .******.****
****.* * **.*******.******.** *** **** .******. ****** |
25000 ++ * * |
| |
20000 O+OO O OO O O O O O OO O OOOOO |
|O OOOOO OO OO OOOOOO OOOOO O OO O O OO OO OO |
15000 ++ |
| |
10000 ++ |
| |
5000 ++ |
| |
0 ++-------------------------------------------O----------------------+
[*] bisect-good sample
[O] bisect-bad sample
Thanks,
Xiaolong
View attachment "config-4.7.0-rc1-00171-gec79541" of type "text/plain" (150952 bytes)
View attachment "job.yaml" of type "text/plain" (3751 bytes)
View attachment "reproduce" of type "text/plain" (7017 bytes)
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