On 2017/3/14 16:53, Ye Xiaolong wrote: > On 03/14, Chao Yu wrote: >> On 2017/3/14 3:22, Jaegeuk Kim wrote: >>> On 03/13, Thorsten Leemhuis wrote: >>>> @Chao Yu/@Jaegeuk Kim: I'm considering to add this to the regressions >>>> report for 4.11; or is there a reason why it shouldn't be considered a >>>> regression? Ciao, Thorsten >>> >>> Hi, >>> >>> I'm planning to submit f2fs updates for 4.11-rcX including a patch which >>> resolves this issue as well, as I expect. >>> >>> https://lkml.org/lkml/2017/3/7/813 >> >> Sorry for late repay. >> >> I expect below patches in Jaegeuk's tree could help to recover the >> performance >> as well >> >> f2fs: skip scanning free nid bitmap of full NAT blocks >> f2fs: combine nat_bits and free_nid_bitmap cache > > These 2 patches do help recover the performance back. Details as below. > > Tested-by: Xiaolong Ye <xiaolong...@intel.com>
Thank you very much for the test. :) Thanks, > > commit: > 4ac912427c4214d8031d9ad6fbc3bc75e71512df ("f2fs: introduce free nid bitmap") > ced2c7ea8e99b46755a270872cd5ba61c27cffad <= parent commit of 4ac912427c > c0e39d642e41be12937f4532721fc2538182e264 ("f2fs: combine nat_bits and > free_nid_bitmap cache") > > 4ac912427c4214d8 ced2c7ea8e99b46755a270872c c0e39d642e41be12937f453272 > ---------------- -------------------------- -------------------------- > %stddev %change %stddev %change %stddev > \ | \ | \ > 77863 ± 0% +50.8% 117419 ± 1% +50.9% 117500 ± 0% > aim7.jobs-per-min > 231.63 ± 0% -33.6% 153.78 ± 1% -33.7% 153.67 ± 0% > aim7.time.elapsed_time > 231.63 ± 0% -33.6% 153.78 ± 1% -33.7% 153.67 ± 0% > aim7.time.elapsed_time.max > 896604 ± 0% -10.1% 805644 ± 3% -20.8% 710207 ± 1% > aim7.time.involuntary_context_switches > 6240 ± 0% -13.3% 5408 ± 1% -14.2% 5353 ± 1% > aim7.time.system_time > 1111357 ± 3% -1.3% 1097209 ± 2% -7.8% 1024716 ± 0% > aim7.time.voluntary_context_switches > 5600256 ± 9% -9.5% 5066069 ± 0% -9.3% 5078220 ± 13% > meminfo.DirectMap2M > 78738 ± 8% +72.1% 135538 ± 8% +23.2% 96995 ± 6% > meminfo.Dirty > 315.50 ± 12% +210.8% 980.67 ± 16% +123.9% 706.40 ± 22% > meminfo.Writeback > 1328 ± 18% +357.1% 6069 ± 57% +231.1% 4397 ± 75% > softirqs.NET_RX > 669152 ± 3% -7.4% 619333 ± 4% -14.4% 572896 ± 1% > softirqs.RCU > 170724 ± 0% -25.0% 128030 ± 2% -23.0% 131531 ± 4% > softirqs.SCHED > 2688290 ± 0% -13.3% 2331994 ± 1% -14.7% 2292443 ± 1% > softirqs.TIMER > 4948 ± 3% +55.6% 7701 ± 1% +55.8% 7710 ± 0% > vmstat.io.bo > 39.00 ± 2% +65.8% 64.67 ± 2% -52.8% 18.40 ± 30% > vmstat.procs.b > 171.50 ± 2% +94.4% 333.33 ± 7% +29.7% 222.40 ± 7% > vmstat.procs.r > 13425 ± 1% +30.6% 17530 ± 1% +43.9% 19321 ± 10% > vmstat.system.cs > 45100 ± 1% +5.6% 47642 ± 1% +6.3% 47957 ± 0% > vmstat.system.in > 19068 ± 0% +75.8% 33522 ± 4% +24.5% 23745 ± 5% > proc-vmstat.nr_dirty > 80.00 ± 3% +195.0% 236.00 ± 14% +126.0% 180.80 ± 23% > proc-vmstat.nr_writeback > 19222 ± 0% +76.4% 33907 ± 4% +24.9% 24004 ± 5% > proc-vmstat.nr_zone_write_pending > > Thanks, > Xiaolong >> >> Xiaolong, Thorsten >> >> Could you help to test these patches? >> >> Thanks, >> >>> >>> Thanks, >>> >>>> >>>> On 08.03.2017 02:21, kernel test robot wrote: >>>>> >>>>> Greeting, >>>>> >>>>> We noticed a -33.7 regression of aim7.jobs-per-min due to commit: >>>>> >>>>> commit: 4ac912427c4214d8031d9ad6fbc3bc75e71512df ("f2fs: introduce free >>>>> nid bitmap") >>>>> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master >>>>> >>>>> in testcase: aim7 >>>>> on test machine: 40 threads Intel(R) Xeon(R) CPU E5-2690 v2 @ 3.00GHz >>>>> with 384G memory >>>>> with following parameters: >>>>> >>>>> disk: 1BRD_48G >>>>> fs: f2fs >>>>> test: disk_wrt >>>>> load: 3000 >>>>> cpufreq_governor: performance >>>>> >>>>> test-description: AIM7 is a traditional UNIX system level benchmark suite >>>>> which is used to test and measure the performance of multiuser system. >>>>> test-url: https://sourceforge.net/projects/aimbench/files/aim-suite7/ >>>>> >>>>> >>>>> >>>>> Details are as below: >>>>> --------------------------------------------------------------------------------------------------> >>>>> >>>>> >>>>> To reproduce: >>>>> >>>>> git clone >>>>> git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git >>>>> cd lkp-tests >>>>> bin/lkp install job.yaml # job file is attached in this email >>>>> bin/lkp run job.yaml >>>>> >>>>> testcase/path_params/tbox_group/run: >>>>> aim7/1BRD_48G-f2fs-disk_wrt-3000-performance/lkp-ivb-ep01 >>>>> >>>>> ced2c7ea8e99b467 4ac912427c4214d8031d9ad6fb >>>>> ---------------- -------------------------- >>>>> %stddev change %stddev >>>>> \ | \ >>>>> 117419 ± 1% -33.7% 77863 ± 0% aim7.jobs-per-min >>>>> 153.78 ± 1% +50.6% 231.63 ± 0% aim7.time.elapsed_time >>>>> 153.78 ± 1% +50.6% 231.63 ± 0% aim7.time.elapsed_time.max >>>>> 805644 ± 3% +11.3% 896604 ± 0% >>>>> aim7.time.involuntary_context_switches >>>>> 5408 ± 1% +15.4% 6240 ± 0% aim7.time.system_time >>>>> 5066069 ± 0% +10.5% 5600256 ± 9% meminfo.DirectMap2M >>>>> 135538 ± 8% -41.9% 78738 ± 8% meminfo.Dirty >>>>> 980.67 ± 16% -67.8% 315.50 ± 12% meminfo.Writeback >>>>> 71322 ± 10% -44.0% 39953 ± 1% numa-meminfo.node0.Dirty >>>>> 11158 ± 18% -27.1% 8132 ± 0% numa-meminfo.node0.Mapped >>>>> 56776 ± 6% -32.5% 38309 ± 0% numa-meminfo.node1.Dirty >>>>> 9684 ± 22% +30.9% 12676 ± 0% numa-meminfo.node1.Mapped >>>>> 6069 ± 57% -78.1% 1328 ± 18% softirqs.NET_RX >>>>> 619333 ± 4% +8.0% 669152 ± 3% softirqs.RCU >>>>> 128030 ± 2% +33.3% 170724 ± 0% softirqs.SCHED >>>>> 2331994 ± 1% +15.3% 2688290 ± 0% softirqs.TIMER >>>>> 7701 ± 1% -35.7% 4948 ± 3% vmstat.io.bo >>>>> 64.67 ± 2% -39.7% 39.00 ± 2% vmstat.procs.b >>>>> 333.33 ± 7% -48.5% 171.50 ± 2% vmstat.procs.r >>>>> 17530 ± 1% -23.4% 13425 ± 1% vmstat.system.cs >>>>> 47642 ± 1% -5.3% 45100 ± 1% vmstat.system.in >>>>> 33522 ± 4% -43.1% 19068 ± 0% proc-vmstat.nr_dirty >>>>> 236.00 ± 14% -66.1% 80.00 ± 3% proc-vmstat.nr_writeback >>>>> 33907 ± 4% -43.3% 19222 ± 0% >>>>> proc-vmstat.nr_zone_write_pending >>>>> 28194 ± 10% +10.4% 31131 ± 6% proc-vmstat.pgactivate >>>>> 746402 ± 2% +24.6% 929960 ± 3% proc-vmstat.pgfault >>>>> 153.78 ± 1% +50.6% 231.63 ± 0% time.elapsed_time >>>>> 153.78 ± 1% +50.6% 231.63 ± 0% time.elapsed_time.max >>>>> 805644 ± 3% +11.3% 896604 ± 0% >>>>> time.involuntary_context_switches >>>>> 3524 ± 0% -23.4% 2701 ± 0% >>>>> time.percent_of_cpu_this_job_got >>>>> 5408 ± 1% +15.4% 6240 ± 0% time.system_time >>>>> 12.19 ± 1% +36.7% 16.66 ± 0% time.user_time >>>>> 48260939 ± 3% +12.1% 54110616 ± 2% cpuidle.C1-IVT.time >>>>> 33149237 ± 5% +52.6% 50597349 ± 1% cpuidle.C1E-IVT.time >>>>> 89642 ± 4% +52.8% 136976 ± 0% cpuidle.C1E-IVT.usage >>>>> 13534795 ± 6% +276.3% 50934566 ± 55% cpuidle.C3-IVT.time >>>>> 42893 ± 6% +138.8% 102439 ± 30% cpuidle.C3-IVT.usage >>>>> 6.431e+08 ± 2% +390.1% 3.152e+09 ± 10% cpuidle.C6-IVT.time >>>>> 802009 ± 2% +375.3% 3811880 ± 10% cpuidle.C6-IVT.usage >>>>> 1535987 ± 4% +156.3% 3936830 ± 4% cpuidle.POLL.time >>>>> 88.14 ± 0% -24.9% 66.17 ± 3% turbostat.%Busy >>>>> 2659 ± 0% -44.7% 1471 ± 3% turbostat.Avg_MHz >>>>> 3016 ± 0% -26.3% 2224 ± 0% turbostat.Bzy_MHz >>>>> 5.20 ± 5% +127.0% 11.80 ± 2% turbostat.CPU%c1 >>>>> >>>>> >>>>> >>>>> perf-stat.page-faults >>>>> >>>>> 1e+06 >>>>> ++-----------------------------------------------------------------+ >>>>> 900000 O+O O O O O O O O >>>>> | >>>>> | O O O O O O O O O O >>>>> | >>>>> 800000 ++ .*.*. .*. .*. .*.. >>>>> | >>>>> 700000 ++*.*.*.*.*..*.* *.*.*.*.*.*..*.* * *.*.*.*.* *.*.*.* >>>>> * >>>>> | : : >>>>> | >>>>> 600000 ++: : >>>>> | >>>>> 500000 ++ >>>>> : :| >>>>> 400000 ++ >>>>> : :| >>>>> |: >>>>> : :| >>>>> 300000 ++ >>>>> : :| >>>>> 200000 ++ >>>>> : :| >>>>> | >>>>> : | >>>>> 100000 ++ >>>>> : | >>>>> 0 >>>>> *+------------------------------------O-O------------------------*-+ >>>>> >>>>> >>>>> perf-stat.minor-faults >>>>> >>>>> 1e+06 >>>>> ++-----------------------------------------------------------------+ >>>>> 900000 O+O O O O O O O O >>>>> | >>>>> | O O O O O O O O O O >>>>> | >>>>> 800000 ++ .*.*. .*. .*. .*.. >>>>> | >>>>> 700000 ++*.*.*.*.*..*.* *.*.*.*.*.*..*.* * *.*.*.*.* *.*.*.* >>>>> * >>>>> | : : >>>>> | >>>>> 600000 ++: : >>>>> | >>>>> 500000 ++ >>>>> : :| >>>>> 400000 ++ >>>>> : :| >>>>> |: >>>>> : :| >>>>> 300000 ++ >>>>> : :| >>>>> 200000 ++ >>>>> : :| >>>>> | >>>>> : | >>>>> 100000 ++ >>>>> : | >>>>> 0 >>>>> *+------------------------------------O-O------------------------*-+ >>>>> >>>>> >>>>> aim7.jobs-per-min >>>>> >>>>> 140000 >>>>> ++-----------------------------------------------------------------+ >>>>> | *. .*.. .*.*.*.*.*.*.*..*.*.*.*.*.*. >>>>> | >>>>> 120000 ++: *.*.* *.*.* *.*.*.*.*..*.*.*. >>>>> * >>>>> | : * >>>>> | >>>>> 100000 ++: : >>>>> | >>>>> |: : >>>>> | >>>>> 80000 O+O O O O O O O O O O O O O O O O O O >>>>> : :| >>>>> |: >>>>> : :| >>>>> 60000 ++ >>>>> : :| >>>>> |: >>>>> : :| >>>>> 40000 ++ >>>>> : :| >>>>> | >>>>> : :| >>>>> 20000 ++ >>>>> : | >>>>> | >>>>> : | >>>>> 0 >>>>> *+------------------------------------O-O------------------------*-+ >>>>> >>>>> >>>>> >>>>> [*] bisect-good sample >>>>> [O] bisect-bad sample >>>>> >>>>> >>>>> Disclaimer: >>>>> Results have been estimated based on internal Intel analysis and are >>>>> provided >>>>> for informational purposes only. Any difference in system hardware or >>>>> software >>>>> design or configuration may affect actual performance. >>>>> >>>>> >>>>> Thanks, >>>>> Xiaolong >>>>> >>> >>> . >>> >> > > . >