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Message-ID: <f1abba58-5fd2-5f26-74cc-f72724cfa13f@linux.intel.com>
Date: Thu, 30 May 2019 09:35:12 +0800
From: Xing Zhengjun <zhengjun.xing@...ux.intel.com>
To: kernel test robot <rong.a.chen@...el.com>,
Trond Myklebust <trond.myklebust@...merspace.com>
Cc: lkp@...org, Linus Torvalds <torvalds@...ux-foundation.org>,
LKML <linux-kernel@...r.kernel.org>
Subject: Re: [LKP] [SUNRPC] 0472e47660: fsmark.app_overhead 16.0% regression
Hi Trond,
On 5/20/2019 1:54 PM, kernel test robot wrote:
> Greeting,
>
> FYI, we noticed a 16.0% improvement of fsmark.app_overhead due to commit:
>
>
> commit: 0472e476604998c127f3c80d291113e77c5676ac ("SUNRPC: Convert socket page send code to use iov_iter()")
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
>
> in testcase: fsmark
> on test machine: 40 threads Intel(R) Xeon(R) CPU E5-2690 v2 @ 3.00GHz with 384G memory
> with following parameters:
>
> iterations: 1x
> nr_threads: 64t
> disk: 1BRD_48G
> fs: xfs
> fs2: nfsv4
> filesize: 4M
> test_size: 40G
> sync_method: fsyncBeforeClose
> cpufreq_governor: performance
>
> test-description: The fsmark is a file system benchmark to test synchronous write workloads, for example, mail servers workload.
> test-url: https://sourceforge.net/projects/fsmark/
>
>
>
> Details are as below:
> -------------------------------------------------------------------------------------------------->
>
>
> To reproduce:
>
> git clone https://github.com/intel/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/fs2/fs/iterations/kconfig/nr_threads/rootfs/sync_method/tbox_group/test_size/testcase:
> gcc-7/performance/1BRD_48G/4M/nfsv4/xfs/1x/x86_64-rhel-7.6/64t/debian-x86_64-2018-04-03.cgz/fsyncBeforeClose/lkp-ivb-ep01/40G/fsmark
>
> commit:
> e791f8e938 ("SUNRPC: Convert xs_send_kvec() to use iov_iter_kvec()")
> 0472e47660 ("SUNRPC: Convert socket page send code to use iov_iter()")
>
> e791f8e9380d945e 0472e476604998c127f3c80d291
> ---------------- ---------------------------
> fail:runs %reproduction fail:runs
> | | |
> :4 50% 2:4 dmesg.WARNING:at#for_ip_interrupt_entry/0x
> %stddev %change %stddev
> \ | \
> 15118573 ± 2% +16.0% 17538083 fsmark.app_overhead
> 510.93 -22.7% 395.12 fsmark.files_per_sec
> 24.90 +22.8% 30.57 fsmark.time.elapsed_time
> 24.90 +22.8% 30.57 fsmark.time.elapsed_time.max
> 288.00 ± 2% -27.8% 208.00 fsmark.time.percent_of_cpu_this_job_got
> 70.03 ± 2% -11.3% 62.14 fsmark.time.system_time
> 4391964 -16.7% 3658341 meminfo.max_used_kB
> 6.10 ± 4% +1.9 7.97 ± 3% mpstat.cpu.all.iowait%
> 0.27 -0.0 0.24 ± 3% mpstat.cpu.all.soft%
> 13668070 ± 40% +118.0% 29801846 ± 19% numa-numastat.node0.local_node
> 13677774 ± 40% +117.9% 29810258 ± 19% numa-numastat.node0.numa_hit
> 5.70 ± 3% +32.1% 7.53 ± 3% iostat.cpu.iowait
> 16.42 ± 2% -5.8% 15.47 iostat.cpu.system
> 2.57 -4.1% 2.46 iostat.cpu.user
> 1406781 ± 2% -15.5% 1188498 vmstat.io.bo
> 251792 ± 3% -16.6% 209928 vmstat.system.cs
> 84841 -1.9% 83239 vmstat.system.in
> 97374502 ± 20% +66.1% 1.617e+08 ± 17% cpuidle.C1E.time
> 573934 ± 19% +44.6% 829662 ± 26% cpuidle.C1E.usage
> 5.892e+08 ± 8% +15.3% 6.796e+08 ± 2% cpuidle.C6.time
> 1968016 ± 3% -15.1% 1670867 ± 3% cpuidle.POLL.time
> 106420 ± 47% +86.2% 198108 ± 35% numa-meminfo.node0.Active
> 106037 ± 48% +86.2% 197395 ± 35% numa-meminfo.node0.Active(anon)
> 105052 ± 48% +86.6% 196037 ± 35% numa-meminfo.node0.AnonPages
> 212876 ± 24% -41.5% 124572 ± 56% numa-meminfo.node1.Active
> 211801 ± 24% -41.5% 123822 ± 56% numa-meminfo.node1.Active(anon)
> 208559 ± 24% -42.2% 120547 ± 57% numa-meminfo.node1.AnonPages
> 9955 +1.6% 10116 proc-vmstat.nr_kernel_stack
> 452.25 ± 59% +280.9% 1722 ±100% proc-vmstat.numa_hint_faults_local
> 33817303 +55.0% 52421773 ± 5% proc-vmstat.numa_hit
> 33804286 +55.0% 52408807 ± 5% proc-vmstat.numa_local
> 33923002 +81.8% 61663426 ± 5% proc-vmstat.pgalloc_normal
> 184765 +9.3% 201985 proc-vmstat.pgfault
> 12840986 +216.0% 40581327 ± 7% proc-vmstat.pgfree
> 31447 ± 11% -26.1% 23253 ± 13% sched_debug.cfs_rq:/.min_vruntime.max
> 4241 ± 3% -12.2% 3724 ± 11% sched_debug.cfs_rq:/.min_vruntime.stddev
> 20631 ± 11% -36.7% 13069 ± 29% sched_debug.cfs_rq:/.spread0.max
> 4238 ± 4% -12.1% 3724 ± 11% sched_debug.cfs_rq:/.spread0.stddev
> 497105 ± 19% -16.0% 417777 ± 4% sched_debug.cpu.avg_idle.avg
> 21199 ± 10% -12.0% 18650 ± 3% sched_debug.cpu.nr_load_updates.max
> 2229 ± 10% -15.0% 1895 ± 4% sched_debug.cpu.nr_load_updates.stddev
> 4.86 ± 5% -23.6% 3.72 ± 5% sched_debug.cpu.nr_uninterruptible.stddev
> 524.75 ± 2% -10.7% 468.50 turbostat.Avg_MHz
> 5.26 ± 41% -1.6 3.66 ± 2% turbostat.C1%
> 573633 ± 19% +44.6% 829267 ± 26% turbostat.C1E
> 8.53 ± 20% +3.4 11.88 ± 17% turbostat.C1E%
> 76.75 -6.4% 71.86 turbostat.CorWatt
> 2534071 ± 2% +16.2% 2943968 turbostat.IRQ
> 2.89 ± 24% +52.9% 4.42 ± 22% turbostat.Pkg%pc2
> 104.28 -4.6% 99.51 turbostat.PkgWatt
> 2289 +18.8% 2720 turbostat.SMI
> 26496 ± 47% +86.2% 49347 ± 35% numa-vmstat.node0.nr_active_anon
> 26251 ± 48% +86.7% 49008 ± 35% numa-vmstat.node0.nr_anon_pages
> 26496 ± 47% +86.2% 49347 ± 35% numa-vmstat.node0.nr_zone_active_anon
> 8272770 ± 35% +99.6% 16515977 ± 17% numa-vmstat.node0.numa_hit
> 8199681 ± 36% +100.9% 16474282 ± 17% numa-vmstat.node0.numa_local
> 52953 ± 24% -41.5% 30956 ± 56% numa-vmstat.node1.nr_active_anon
> 52144 ± 24% -42.2% 30136 ± 57% numa-vmstat.node1.nr_anon_pages
> 2899 ± 2% -19.4% 2336 ± 10% numa-vmstat.node1.nr_writeback
> 52953 ± 24% -41.5% 30956 ± 56% numa-vmstat.node1.nr_zone_active_anon
> 4549 ± 8% -18.9% 3689 ± 7% numa-vmstat.node1.nr_zone_write_pending
> 43.25 -1.6 41.69 perf-stat.i.cache-miss-rate%
> 286377 ± 2% -19.1% 231819 ± 2% perf-stat.i.context-switches
> 2.258e+10 ± 4% -16.2% 1.893e+10 ± 10% perf-stat.i.cpu-cycles
> 4084 -34.0% 2696 ± 2% perf-stat.i.cpu-migrations
> 21563675 ± 24% -30.8% 14929445 ± 5% perf-stat.i.dTLB-load-misses
> 1996341 ± 16% -25.7% 1482826 ± 6% perf-stat.i.dTLB-store-misses
> 2.313e+09 ± 4% -11.7% 2.042e+09 ± 6% perf-stat.i.dTLB-stores
> 75.93 -1.3 74.66 perf-stat.i.iTLB-load-miss-rate%
> 1561381 ± 3% -13.4% 1351731 perf-stat.i.iTLB-load-misses
> 549643 ± 4% -10.1% 494255 ± 3% perf-stat.i.iTLB-loads
> 6423 -10.0% 5779 perf-stat.i.minor-faults
> 31.72 ± 2% +4.4 36.14 perf-stat.i.node-load-miss-rate%
> 23492890 +23.5% 29020305 ± 3% perf-stat.i.node-load-misses
> 15.13 ± 8% +7.9 23.02 ± 3% perf-stat.i.node-store-miss-rate%
> 11517615 +71.3% 19734054 ± 2% perf-stat.i.node-store-misses
> 6423 -10.0% 5779 perf-stat.i.page-faults
> 16.88 ± 14% +33.4% 22.52 ± 23% perf-stat.overall.MPKI
> 46.67 -2.4 44.31 perf-stat.overall.cache-miss-rate%
> 31.96 +4.8 36.72 perf-stat.overall.node-load-miss-rate%
> 13.85 +8.0 21.87 perf-stat.overall.node-store-miss-rate%
> 2.266e+08 +2.8% 2.331e+08 ± 2% perf-stat.ps.cache-references
> 275634 ± 2% -18.5% 224718 ± 2% perf-stat.ps.context-switches
> 2.174e+10 ± 4% -15.6% 1.835e+10 ± 10% perf-stat.ps.cpu-cycles
> 3931 -33.5% 2614 ± 2% perf-stat.ps.cpu-migrations
> 20746040 ± 24% -30.2% 14476157 ± 5% perf-stat.ps.dTLB-load-misses
> 1921077 ± 16% -25.2% 1437750 ± 6% perf-stat.ps.dTLB-store-misses
> 2.227e+09 ± 4% -11.1% 1.979e+09 ± 6% perf-stat.ps.dTLB-stores
> 1503433 ± 3% -12.8% 1310741 perf-stat.ps.iTLB-load-misses
> 529058 ± 4% -9.4% 479204 ± 3% perf-stat.ps.iTLB-loads
> 6200 -9.4% 5620 perf-stat.ps.minor-faults
> 22613159 +24.4% 28133123 ± 3% perf-stat.ps.node-load-misses
> 11085254 +72.6% 19131576 ± 2% perf-stat.ps.node-store-misses
> 6200 -9.4% 5620 perf-stat.ps.page-faults
> 7008 ± 13% +55.2% 10876 ± 31% softirqs.CPU1.NET_RX
> 6509 ± 4% +51.8% 9883 ± 27% softirqs.CPU1.RCU
> 7294 ± 13% +36.7% 9974 ± 8% softirqs.CPU10.RCU
> 7800 ± 14% +85.5% 14469 ± 23% softirqs.CPU12.NET_RX
> 5697 ± 43% +77.5% 10110 ± 24% softirqs.CPU13.NET_RX
> 15944 ± 9% +14.6% 18278 ± 12% softirqs.CPU14.TIMER
> 6064 ± 19% +68.6% 10223 ± 31% softirqs.CPU15.NET_RX
> 7796 ± 14% +80.3% 14059 ± 25% softirqs.CPU16.NET_RX
> 15934 ± 10% +22.1% 19452 ± 11% softirqs.CPU18.TIMER
> 6725 ± 7% +40.0% 9413 ± 18% softirqs.CPU19.NET_RX
> 5710 ± 3% +53.4% 8756 ± 12% softirqs.CPU20.RCU
> 7018 ± 14% +65.5% 11616 ± 40% softirqs.CPU21.NET_RX
> 6389 ± 18% +66.9% 10666 ± 31% softirqs.CPU23.NET_RX
> 7259 ± 7% +36.1% 9881 ± 6% softirqs.CPU24.RCU
> 6491 ± 20% +58.5% 10289 ± 33% softirqs.CPU25.NET_RX
> 7090 ± 10% +58.7% 11256 ± 29% softirqs.CPU27.NET_RX
> 6333 ± 27% +70.3% 10786 ± 27% softirqs.CPU29.NET_RX
> 5813 ± 20% +84.2% 10706 ± 36% softirqs.CPU3.NET_RX
> 7041 ± 23% +105.7% 14483 ± 21% softirqs.CPU30.NET_RX
> 6654 ± 7% +64.1% 10918 ± 29% softirqs.CPU31.NET_RX
> 18019 ± 10% +11.1% 20016 ± 7% softirqs.CPU31.TIMER
> 4666 ± 8% +104.0% 9518 ± 23% softirqs.CPU32.RCU
> 15721 ± 16% +35.9% 21371 ± 11% softirqs.CPU32.TIMER
> 15684 ± 13% +40.0% 21959 ± 18% softirqs.CPU34.TIMER
> 6489 ± 15% +69.7% 11013 ± 37% softirqs.CPU35.NET_RX
> 7930 ± 7% +82.1% 14442 ± 29% softirqs.CPU36.NET_RX
> 15744 ± 14% +24.3% 19563 ± 6% softirqs.CPU36.TIMER
> 7028 ± 13% +29.3% 9085 ± 11% softirqs.CPU39.NET_RX
> 7491 ± 22% +100.4% 15011 ± 24% softirqs.CPU4.NET_RX
> 6119 ± 13% +58.7% 9710 ± 37% softirqs.CPU5.NET_RX
> 6980 ± 8% +47.8% 10318 ± 42% softirqs.CPU7.NET_RX
> 285674 +65.7% 473395 softirqs.NET_RX
> 267950 ± 5% +21.1% 324597 softirqs.RCU
> 238298 ± 2% +15.1% 274371 ± 2% softirqs.SCHED
> 689305 ± 3% +14.1% 786236 ± 3% softirqs.TIMER
> 56196 ± 2% +19.9% 67389 interrupts.CPU0.LOC:Local_timer_interrupts
> 55971 ± 2% +19.7% 67005 interrupts.CPU1.LOC:Local_timer_interrupts
> 5265 ± 17% -32.2% 3568 ± 29% interrupts.CPU1.RES:Rescheduling_interrupts
> 56163 ± 2% +19.2% 66960 interrupts.CPU10.LOC:Local_timer_interrupts
> 56178 ± 2% +19.5% 67139 interrupts.CPU11.LOC:Local_timer_interrupts
> 4669 ± 15% -30.3% 3253 ± 29% interrupts.CPU11.RES:Rescheduling_interrupts
> 56081 +19.7% 67142 interrupts.CPU12.LOC:Local_timer_interrupts
> 55999 ± 2% +19.5% 66893 interrupts.CPU13.LOC:Local_timer_interrupts
> 4746 ± 23% -30.0% 3324 ± 29% interrupts.CPU13.RES:Rescheduling_interrupts
> 55991 ± 2% +19.5% 66898 interrupts.CPU14.LOC:Local_timer_interrupts
> 55855 ± 2% +20.0% 67031 interrupts.CPU15.LOC:Local_timer_interrupts
> 55943 ± 2% +19.9% 67087 interrupts.CPU16.LOC:Local_timer_interrupts
> 56164 +18.9% 66802 interrupts.CPU17.LOC:Local_timer_interrupts
> 4579 ± 20% -45.6% 2492 ± 16% interrupts.CPU17.RES:Rescheduling_interrupts
> 55913 ± 2% +19.6% 66860 interrupts.CPU18.LOC:Local_timer_interrupts
> 55820 ± 2% +19.7% 66822 interrupts.CPU19.LOC:Local_timer_interrupts
> 4733 ± 17% -35.5% 3052 ± 21% interrupts.CPU19.RES:Rescheduling_interrupts
> 55989 ± 2% +20.0% 67177 interrupts.CPU2.LOC:Local_timer_interrupts
> 55891 ± 2% +20.3% 67258 interrupts.CPU20.LOC:Local_timer_interrupts
> 55966 ± 2% +19.6% 66921 interrupts.CPU21.LOC:Local_timer_interrupts
> 4920 ± 21% -33.4% 3278 ± 31% interrupts.CPU21.RES:Rescheduling_interrupts
> 55945 ± 2% +19.9% 67098 interrupts.CPU22.LOC:Local_timer_interrupts
> 55945 ± 2% +19.9% 67073 interrupts.CPU23.LOC:Local_timer_interrupts
> 4972 ± 24% -34.1% 3277 ± 36% interrupts.CPU23.RES:Rescheduling_interrupts
> 56093 ± 2% +19.8% 67185 interrupts.CPU24.LOC:Local_timer_interrupts
> 55910 ± 2% +19.7% 66914 interrupts.CPU25.LOC:Local_timer_interrupts
> 4660 ± 25% -28.9% 3313 ± 34% interrupts.CPU25.RES:Rescheduling_interrupts
> 56105 ± 2% +18.8% 66631 interrupts.CPU26.LOC:Local_timer_interrupts
> 55928 ± 2% +19.5% 66827 interrupts.CPU27.LOC:Local_timer_interrupts
> 55934 ± 2% +19.3% 66740 interrupts.CPU28.LOC:Local_timer_interrupts
> 55918 ± 2% +19.5% 66812 interrupts.CPU29.LOC:Local_timer_interrupts
> 4825 ± 22% -30.3% 3362 ± 30% interrupts.CPU29.RES:Rescheduling_interrupts
> 55920 ± 2% +19.8% 67004 interrupts.CPU3.LOC:Local_timer_interrupts
> 56007 ± 2% +19.5% 66917 interrupts.CPU30.LOC:Local_timer_interrupts
> 56238 +18.8% 66838 interrupts.CPU31.LOC:Local_timer_interrupts
> 4859 ± 21% -33.0% 3257 ± 36% interrupts.CPU31.RES:Rescheduling_interrupts
> 56099 +19.3% 66921 interrupts.CPU32.LOC:Local_timer_interrupts
> 55963 ± 2% +19.5% 66866 interrupts.CPU33.LOC:Local_timer_interrupts
> 55992 ± 2% +19.2% 66767 interrupts.CPU34.LOC:Local_timer_interrupts
> 55964 ± 2% +19.6% 66939 interrupts.CPU35.LOC:Local_timer_interrupts
> 4797 ± 26% -33.6% 3185 ± 38% interrupts.CPU35.RES:Rescheduling_interrupts
> 55770 ± 2% +20.2% 67016 interrupts.CPU36.LOC:Local_timer_interrupts
> 55889 +20.0% 67095 interrupts.CPU37.LOC:Local_timer_interrupts
> 56140 ± 2% +18.9% 66743 interrupts.CPU38.LOC:Local_timer_interrupts
> 56040 ± 2% +19.2% 66828 interrupts.CPU39.LOC:Local_timer_interrupts
> 5126 ± 23% -40.5% 3052 ± 11% interrupts.CPU39.RES:Rescheduling_interrupts
> 56022 ± 2% +19.9% 67149 interrupts.CPU4.LOC:Local_timer_interrupts
> 55850 ± 2% +20.1% 67066 interrupts.CPU5.LOC:Local_timer_interrupts
> 4741 ± 23% -31.9% 3227 ± 29% interrupts.CPU5.RES:Rescheduling_interrupts
> 55912 +19.5% 66798 interrupts.CPU6.LOC:Local_timer_interrupts
> 56062 ± 2% +19.6% 67052 interrupts.CPU7.LOC:Local_timer_interrupts
> 56118 +19.6% 67142 interrupts.CPU8.LOC:Local_timer_interrupts
> 56110 ± 2% +19.6% 67121 interrupts.CPU9.LOC:Local_timer_interrupts
> 2216 ± 43% -69.4% 677.50 ±112% interrupts.CPU9.NMI:Non-maskable_interrupts
> 2216 ± 43% -69.4% 677.50 ±112% interrupts.CPU9.PMI:Performance_monitoring_interrupts
> 2240009 ± 2% +19.6% 2678940 interrupts.LOC:Local_timer_interrupts
> 168296 ± 3% -10.1% 151314 interrupts.RES:Rescheduling_interrupts
> 20.37 -3.3 17.04 ± 5% perf-profile.calltrace.cycles-pp.svc_process_common.svc_process.nfsd.kthread.ret_from_fork
> 20.38 -3.3 17.04 ± 5% perf-profile.calltrace.cycles-pp.svc_process.nfsd.kthread.ret_from_fork
> 20.27 -3.3 16.95 ± 5% perf-profile.calltrace.cycles-pp.nfsd_dispatch.svc_process_common.svc_process.nfsd.kthread
> 20.21 -3.3 16.91 ± 5% perf-profile.calltrace.cycles-pp.nfsd4_proc_compound.nfsd_dispatch.svc_process_common.svc_process.nfsd
> 26.02 -3.1 22.91 ± 4% perf-profile.calltrace.cycles-pp.nfsd.kthread.ret_from_fork
> 9.04 ± 2% -1.9 7.18 ± 7% perf-profile.calltrace.cycles-pp.nfsd_vfs_write.nfsd4_write.nfsd4_proc_compound.nfsd_dispatch.svc_process_common
> 9.02 ± 2% -1.9 7.17 ± 7% perf-profile.calltrace.cycles-pp.do_iter_readv_writev.do_iter_write.nfsd_vfs_write.nfsd4_write.nfsd4_proc_compound
> 9.02 ± 2% -1.9 7.16 ± 7% perf-profile.calltrace.cycles-pp.xfs_file_buffered_aio_write.do_iter_readv_writev.do_iter_write.nfsd_vfs_write.nfsd4_write
> 9.03 ± 2% -1.9 7.18 ± 7% perf-profile.calltrace.cycles-pp.do_iter_write.nfsd_vfs_write.nfsd4_write.nfsd4_proc_compound.nfsd_dispatch
> 9.07 ± 2% -1.9 7.22 ± 7% perf-profile.calltrace.cycles-pp.nfsd4_write.nfsd4_proc_compound.nfsd_dispatch.svc_process_common.svc_process
> 10.50 ± 2% -1.4 9.06 ± 4% perf-profile.calltrace.cycles-pp.xfs_file_fsync.nfsd_commit.nfsd4_proc_compound.nfsd_dispatch.svc_process_common
> 10.51 ± 2% -1.4 9.08 ± 4% perf-profile.calltrace.cycles-pp.nfsd_commit.nfsd4_proc_compound.nfsd_dispatch.svc_process_common.svc_process
> 10.45 ± 2% -1.4 9.02 ± 4% perf-profile.calltrace.cycles-pp.file_write_and_wait_range.xfs_file_fsync.nfsd_commit.nfsd4_proc_compound.nfsd_dispatch
> 9.82 ± 3% -1.4 8.45 ± 3% perf-profile.calltrace.cycles-pp.__filemap_fdatawrite_range.file_write_and_wait_range.xfs_file_fsync.nfsd_commit.nfsd4_proc_compound
> 9.82 ± 3% -1.4 8.45 ± 3% perf-profile.calltrace.cycles-pp.do_writepages.__filemap_fdatawrite_range.file_write_and_wait_range.xfs_file_fsync.nfsd_commit
> 9.82 ± 3% -1.4 8.45 ± 3% perf-profile.calltrace.cycles-pp.xfs_vm_writepages.do_writepages.__filemap_fdatawrite_range.file_write_and_wait_range.xfs_file_fsync
> 10.61 ± 5% -1.1 9.46 ± 4% perf-profile.calltrace.cycles-pp.write
> 7.54 -1.1 6.41 ± 6% perf-profile.calltrace.cycles-pp.iomap_apply.iomap_file_buffered_write.xfs_file_buffered_aio_write.do_iter_readv_writev.do_iter_write
> 7.54 -1.1 6.41 ± 6% perf-profile.calltrace.cycles-pp.iomap_file_buffered_write.xfs_file_buffered_aio_write.do_iter_readv_writev.do_iter_write.nfsd_vfs_write
> 10.27 ± 5% -1.1 9.15 ± 4% perf-profile.calltrace.cycles-pp.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
> 7.49 -1.1 6.37 ± 6% perf-profile.calltrace.cycles-pp.iomap_write_actor.iomap_apply.iomap_file_buffered_write.xfs_file_buffered_aio_write.do_iter_readv_writev
> 10.23 ± 5% -1.1 9.11 ± 4% perf-profile.calltrace.cycles-pp.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
> 10.35 ± 5% -1.1 9.23 ± 4% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.write
> 10.08 ± 5% -1.1 8.96 ± 4% perf-profile.calltrace.cycles-pp.__vfs_write.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe
> 10.33 ± 5% -1.1 9.22 ± 4% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
> 10.05 ± 5% -1.1 8.95 ± 4% perf-profile.calltrace.cycles-pp.nfs_file_write.__vfs_write.vfs_write.ksys_write.do_syscall_64
> 9.80 ± 5% -1.1 8.73 ± 4% perf-profile.calltrace.cycles-pp.generic_perform_write.nfs_file_write.__vfs_write.vfs_write.ksys_write
> 5.31 ± 5% -1.0 4.27 ± 5% perf-profile.calltrace.cycles-pp.rpc_free_task.rpc_async_release.process_one_work.worker_thread.kthread
> 5.31 ± 5% -1.0 4.27 ± 5% perf-profile.calltrace.cycles-pp.rpc_async_release.process_one_work.worker_thread.kthread.ret_from_fork
> 4.38 ± 5% -1.0 3.35 ± 2% perf-profile.calltrace.cycles-pp.tcp_recvmsg.inet_recvmsg.svc_recvfrom.svc_tcp_recvfrom.svc_recv
> 4.38 ± 6% -1.0 3.36 ± 2% perf-profile.calltrace.cycles-pp.inet_recvmsg.svc_recvfrom.svc_tcp_recvfrom.svc_recv.nfsd
> 4.39 ± 6% -1.0 3.40 ± 2% perf-profile.calltrace.cycles-pp.svc_recvfrom.svc_tcp_recvfrom.svc_recv.nfsd.kthread
> 3.53 ± 5% -0.9 2.62 ± 3% perf-profile.calltrace.cycles-pp.skb_copy_datagram_iter.tcp_recvmsg.inet_recvmsg.svc_recvfrom.svc_tcp_recvfrom
> 3.52 ± 5% -0.9 2.62 ± 3% perf-profile.calltrace.cycles-pp.__skb_datagram_iter.skb_copy_datagram_iter.tcp_recvmsg.inet_recvmsg.svc_recvfrom
> 5.01 ± 6% -0.9 4.14 ± 3% perf-profile.calltrace.cycles-pp.fsync
> 4.09 ± 7% -0.8 3.24 ± 5% perf-profile.calltrace.cycles-pp.nfs_write_completion.rpc_free_task.rpc_async_release.process_one_work.worker_thread
> 4.90 ± 6% -0.8 4.05 ± 3% perf-profile.calltrace.cycles-pp.__x64_sys_fsync.do_syscall_64.entry_SYSCALL_64_after_hwframe.fsync
> 4.90 ± 6% -0.8 4.05 ± 3% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.fsync
> 4.90 ± 6% -0.8 4.05 ± 3% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.fsync
> 4.90 ± 6% -0.8 4.05 ± 3% perf-profile.calltrace.cycles-pp.nfs_file_fsync.do_fsync.__x64_sys_fsync.do_syscall_64.entry_SYSCALL_64_after_hwframe
> 4.90 ± 6% -0.8 4.05 ± 3% perf-profile.calltrace.cycles-pp.do_fsync.__x64_sys_fsync.do_syscall_64.entry_SYSCALL_64_after_hwframe.fsync
> 5.84 ± 2% -0.8 5.01 ± 4% perf-profile.calltrace.cycles-pp.write_cache_pages.xfs_vm_writepages.do_writepages.__filemap_fdatawrite_range.file_write_and_wait_range
> 1.15 ± 7% -0.8 0.36 ±100% perf-profile.calltrace.cycles-pp.rwsem_spin_on_owner.rwsem_down_write_failed.call_rwsem_down_write_failed.down_write.xfs_ilock
> 4.38 ± 7% -0.8 3.59 ± 3% perf-profile.calltrace.cycles-pp.filemap_write_and_wait_range.nfs_file_fsync.do_fsync.__x64_sys_fsync.do_syscall_64
> 5.17 ± 2% -0.8 4.39 ± 5% perf-profile.calltrace.cycles-pp.xfs_do_writepage.write_cache_pages.xfs_vm_writepages.do_writepages.__filemap_fdatawrite_range
> 4.89 ± 4% -0.7 4.18 ± 5% perf-profile.calltrace.cycles-pp.brd_insert_page.brd_do_bvec.brd_make_request.generic_make_request.submit_bio
> 1.38 ± 9% -0.7 0.68 ± 22% perf-profile.calltrace.cycles-pp.down_write.xfs_ilock.xfs_file_buffered_aio_write.do_iter_readv_writev.do_iter_write
> 1.38 ± 9% -0.7 0.68 ± 22% perf-profile.calltrace.cycles-pp.call_rwsem_down_write_failed.down_write.xfs_ilock.xfs_file_buffered_aio_write.do_iter_readv_writev
> 1.38 ± 9% -0.7 0.68 ± 22% perf-profile.calltrace.cycles-pp.rwsem_down_write_failed.call_rwsem_down_write_failed.down_write.xfs_ilock.xfs_file_buffered_aio_write
> 1.38 ± 9% -0.7 0.68 ± 22% perf-profile.calltrace.cycles-pp.xfs_ilock.xfs_file_buffered_aio_write.do_iter_readv_writev.do_iter_write.nfsd_vfs_write
> 4.01 ± 3% -0.6 3.40 ± 5% perf-profile.calltrace.cycles-pp.brd_make_request.generic_make_request.submit_bio.xfs_add_to_ioend.xfs_do_writepage
> 4.01 ± 3% -0.6 3.40 ± 5% perf-profile.calltrace.cycles-pp.submit_bio.xfs_add_to_ioend.xfs_do_writepage.write_cache_pages.xfs_vm_writepages
> 4.01 ± 3% -0.6 3.40 ± 5% perf-profile.calltrace.cycles-pp.generic_make_request.submit_bio.xfs_add_to_ioend.xfs_do_writepage.write_cache_pages
> 3.99 ± 3% -0.6 3.38 ± 5% perf-profile.calltrace.cycles-pp.brd_do_bvec.brd_make_request.generic_make_request.submit_bio.xfs_add_to_ioend
> 4.11 ± 3% -0.6 3.51 ± 4% perf-profile.calltrace.cycles-pp.xfs_add_to_ioend.xfs_do_writepage.write_cache_pages.xfs_vm_writepages.do_writepages
> 3.97 ± 5% -0.5 3.43 ± 4% perf-profile.calltrace.cycles-pp.submit_bio.xfs_submit_ioend.xfs_vm_writepages.do_writepages.__filemap_fdatawrite_range
> 3.97 ± 5% -0.5 3.43 ± 4% perf-profile.calltrace.cycles-pp.generic_make_request.submit_bio.xfs_submit_ioend.xfs_vm_writepages.do_writepages
> 3.98 ± 5% -0.5 3.44 ± 4% perf-profile.calltrace.cycles-pp.xfs_submit_ioend.xfs_vm_writepages.do_writepages.__filemap_fdatawrite_range.file_write_and_wait_range
> 3.96 ± 5% -0.5 3.43 ± 4% perf-profile.calltrace.cycles-pp.brd_make_request.generic_make_request.submit_bio.xfs_submit_ioend.xfs_vm_writepages
> 3.92 ± 5% -0.5 3.40 ± 4% perf-profile.calltrace.cycles-pp.brd_do_bvec.brd_make_request.generic_make_request.submit_bio.xfs_submit_ioend
> 2.89 ± 6% -0.5 2.38 ± 6% perf-profile.calltrace.cycles-pp.nfs_end_page_writeback.nfs_write_completion.rpc_free_task.rpc_async_release.process_one_work
> 2.77 ± 10% -0.5 2.28 ± 2% perf-profile.calltrace.cycles-pp.__filemap_fdatawrite_range.filemap_write_and_wait_range.nfs_file_fsync.do_fsync.__x64_sys_fsync
> 2.77 ± 10% -0.5 2.28 ± 2% perf-profile.calltrace.cycles-pp.nfs_writepages.do_writepages.__filemap_fdatawrite_range.filemap_write_and_wait_range.nfs_file_fsync
> 2.77 ± 10% -0.5 2.28 ± 2% perf-profile.calltrace.cycles-pp.do_writepages.__filemap_fdatawrite_range.filemap_write_and_wait_range.nfs_file_fsync.do_fsync
> 2.74 ± 10% -0.5 2.25 ± 2% perf-profile.calltrace.cycles-pp.write_cache_pages.nfs_writepages.do_writepages.__filemap_fdatawrite_range.filemap_write_and_wait_range
> 3.12 ± 7% -0.5 2.64 ± 4% perf-profile.calltrace.cycles-pp.nfs_write_begin.generic_perform_write.nfs_file_write.__vfs_write.vfs_write
> 2.93 ± 7% -0.5 2.47 ± 3% perf-profile.calltrace.cycles-pp.grab_cache_page_write_begin.nfs_write_begin.generic_perform_write.nfs_file_write.__vfs_write
> 3.37 ± 4% -0.5 2.91 ± 4% perf-profile.calltrace.cycles-pp.nfs_write_end.generic_perform_write.nfs_file_write.__vfs_write.vfs_write
> 2.51 ± 4% -0.4 2.06 ± 7% perf-profile.calltrace.cycles-pp.clear_page_erms.get_page_from_freelist.__alloc_pages_nodemask.brd_insert_page.brd_do_bvec
> 3.12 ± 5% -0.4 2.68 ± 7% perf-profile.calltrace.cycles-pp.__alloc_pages_nodemask.brd_insert_page.brd_do_bvec.brd_make_request.generic_make_request
> 2.91 ± 5% -0.4 2.48 ± 3% perf-profile.calltrace.cycles-pp._copy_to_iter.__skb_datagram_iter.skb_copy_datagram_iter.tcp_recvmsg.inet_recvmsg
> 3.02 ± 5% -0.4 2.59 ± 7% perf-profile.calltrace.cycles-pp.get_page_from_freelist.__alloc_pages_nodemask.brd_insert_page.brd_do_bvec.brd_make_request
> 2.59 ± 4% -0.4 2.18 ± 5% perf-profile.calltrace.cycles-pp.nfs_updatepage.nfs_write_end.generic_perform_write.nfs_file_write.__vfs_write
> 2.84 ± 7% -0.4 2.43 ± 3% perf-profile.calltrace.cycles-pp.pagecache_get_page.grab_cache_page_write_begin.nfs_write_begin.generic_perform_write.nfs_file_write
> 3.27 -0.4 2.86 ± 6% perf-profile.calltrace.cycles-pp.iov_iter_copy_from_user_atomic.iomap_write_actor.iomap_apply.iomap_file_buffered_write.xfs_file_buffered_aio_write
> 3.20 -0.4 2.79 ± 6% perf-profile.calltrace.cycles-pp.memcpy_erms.iov_iter_copy_from_user_atomic.iomap_write_actor.iomap_apply.iomap_file_buffered_write
> 2.85 ± 5% -0.4 2.44 ± 3% perf-profile.calltrace.cycles-pp.memcpy_erms._copy_to_iter.__skb_datagram_iter.skb_copy_datagram_iter.tcp_recvmsg
> 2.50 ± 4% -0.4 2.14 ± 7% perf-profile.calltrace.cycles-pp.iomap_write_begin.iomap_write_actor.iomap_apply.iomap_file_buffered_write.xfs_file_buffered_aio_write
> 2.41 ± 4% -0.4 2.06 ± 7% perf-profile.calltrace.cycles-pp.grab_cache_page_write_begin.iomap_write_begin.iomap_write_actor.iomap_apply.iomap_file_buffered_write
> 2.02 ± 11% -0.3 1.67 ± 3% perf-profile.calltrace.cycles-pp.nfs_writepages_callback.write_cache_pages.nfs_writepages.do_writepages.__filemap_fdatawrite_range
> 0.60 ± 8% -0.3 0.26 ±100% perf-profile.calltrace.cycles-pp.iomap_set_page_dirty.iomap_write_end.iomap_write_actor.iomap_apply.iomap_file_buffered_write
> 1.96 ± 11% -0.3 1.62 ± 3% perf-profile.calltrace.cycles-pp.nfs_do_writepage.nfs_writepages_callback.write_cache_pages.nfs_writepages.do_writepages
> 1.55 ± 2% -0.3 1.22 ± 5% perf-profile.calltrace.cycles-pp.iomap_write_end.iomap_write_actor.iomap_apply.iomap_file_buffered_write.xfs_file_buffered_aio_write
> 2.35 ± 4% -0.3 2.03 ± 7% perf-profile.calltrace.cycles-pp.pagecache_get_page.grab_cache_page_write_begin.iomap_write_begin.iomap_write_actor.iomap_apply
> 1.60 ± 2% -0.3 1.32 ± 4% perf-profile.calltrace.cycles-pp.__filemap_fdatawait_range.filemap_write_and_wait_range.nfs_file_fsync.do_fsync.__x64_sys_fsync
> 1.49 ± 6% -0.2 1.24 ± 6% perf-profile.calltrace.cycles-pp._raw_spin_lock.brd_insert_page.brd_do_bvec.brd_make_request.generic_make_request
> 1.03 ± 6% -0.2 0.80 ± 7% perf-profile.calltrace.cycles-pp.end_page_writeback.nfs_end_page_writeback.nfs_write_completion.rpc_free_task.rpc_async_release
> 0.97 ± 7% -0.2 0.74 ± 9% perf-profile.calltrace.cycles-pp.test_clear_page_writeback.end_page_writeback.nfs_end_page_writeback.nfs_write_completion.rpc_free_task
> 1.45 ± 6% -0.2 1.23 ± 4% perf-profile.calltrace.cycles-pp.add_to_page_cache_lru.pagecache_get_page.grab_cache_page_write_begin.nfs_write_begin.generic_perform_write
> 0.97 ± 4% -0.2 0.77 ± 3% perf-profile.calltrace.cycles-pp.poll_idle.cpuidle_enter_state.do_idle.cpu_startup_entry.start_secondary
> 1.22 ± 6% -0.2 1.03 ± 6% perf-profile.calltrace.cycles-pp.nfs_commit_release_pages.nfs_commit_release.rpc_free_task.rpc_async_release.process_one_work
> 1.22 ± 6% -0.2 1.03 ± 5% perf-profile.calltrace.cycles-pp.nfs_commit_release.rpc_free_task.rpc_async_release.process_one_work.worker_thread
> 1.25 ± 5% -0.2 1.06 ± 8% perf-profile.calltrace.cycles-pp.add_to_page_cache_lru.pagecache_get_page.grab_cache_page_write_begin.iomap_write_begin.iomap_write_actor
> 1.06 ± 2% -0.2 0.87 ± 4% perf-profile.calltrace.cycles-pp.wait_on_page_bit_common.__filemap_fdatawait_range.filemap_write_and_wait_range.nfs_file_fsync.do_fsync
> 1.27 ± 5% -0.2 1.11 ± 6% perf-profile.calltrace.cycles-pp.wake_up_page_bit.nfs_end_page_writeback.nfs_write_completion.rpc_free_task.rpc_async_release
> 0.78 ± 8% -0.2 0.63 ± 6% perf-profile.calltrace.cycles-pp.__set_page_dirty_nobuffers.nfs_updatepage.nfs_write_end.generic_perform_write.nfs_file_write
> 1.11 ± 7% -0.1 0.99 ± 6% perf-profile.calltrace.cycles-pp.__wake_up_common.wake_up_page_bit.nfs_end_page_writeback.nfs_write_completion.rpc_free_task
> 0.68 -0.1 0.57 ± 5% perf-profile.calltrace.cycles-pp.nfs_create_request.nfs_updatepage.nfs_write_end.generic_perform_write.nfs_file_write
> 1.04 ± 7% -0.1 0.93 ± 5% perf-profile.calltrace.cycles-pp.autoremove_wake_function.__wake_up_common.wake_up_page_bit.nfs_end_page_writeback.nfs_write_completion
> 1.02 ± 8% -0.1 0.92 ± 4% perf-profile.calltrace.cycles-pp.try_to_wake_up.autoremove_wake_function.__wake_up_common.wake_up_page_bit.nfs_end_page_writeback
> 0.71 ± 2% -0.1 0.60 ± 8% perf-profile.calltrace.cycles-pp.__schedule.schedule.io_schedule.wait_on_page_bit_common.__filemap_fdatawait_range
> 0.72 ± 2% -0.1 0.61 ± 8% perf-profile.calltrace.cycles-pp.schedule.io_schedule.wait_on_page_bit_common.__filemap_fdatawait_range.filemap_write_and_wait_range
> 0.72 -0.1 0.62 ± 7% perf-profile.calltrace.cycles-pp.io_schedule.wait_on_page_bit_common.__filemap_fdatawait_range.filemap_write_and_wait_range.nfs_file_fsync
> 0.93 ± 5% -0.1 0.83 ± 5% perf-profile.calltrace.cycles-pp.__alloc_pages_nodemask.pagecache_get_page.grab_cache_page_write_begin.nfs_write_begin.generic_perform_write
> 0.73 -0.1 0.67 ± 5% perf-profile.calltrace.cycles-pp.end_page_writeback.xfs_destroy_ioend.process_one_work.worker_thread.kthread
> 4.86 ± 6% +0.5 5.39 perf-profile.calltrace.cycles-pp.svc_recv.nfsd.kthread.ret_from_fork
> 0.00 +0.5 0.54 ± 3% perf-profile.calltrace.cycles-pp.get_page_from_freelist.__alloc_pages_nodemask.svc_recv.nfsd.kthread
> 0.00 +0.6 0.59 ± 6% perf-profile.calltrace.cycles-pp.ip6_xmit.inet6_csk_xmit.__tcp_transmit_skb.tcp_write_xmit.tcp_sendmsg_locked
> 0.00 +0.6 0.63 ± 6% perf-profile.calltrace.cycles-pp.inet6_csk_xmit.__tcp_transmit_skb.tcp_write_xmit.tcp_sendmsg_locked.tcp_sendmsg
> 0.00 +0.7 0.65 ± 4% perf-profile.calltrace.cycles-pp.__alloc_pages_nodemask.svc_recv.nfsd.kthread.ret_from_fork
> 0.00 +0.7 0.74 ± 8% perf-profile.calltrace.cycles-pp.__tcp_transmit_skb.tcp_write_xmit.tcp_sendmsg_locked.tcp_sendmsg.sock_sendmsg
> 0.00 +0.9 0.86 ± 8% perf-profile.calltrace.cycles-pp.tcp_write_xmit.tcp_sendmsg_locked.tcp_sendmsg.sock_sendmsg.xs_sendpages
> 9.98 ± 4% +2.5 12.44 ± 4% perf-profile.calltrace.cycles-pp.worker_thread.kthread.ret_from_fork
> 9.61 ± 4% +2.5 12.15 ± 4% perf-profile.calltrace.cycles-pp.process_one_work.worker_thread.kthread.ret_from_fork
> 47.02 ± 3% +2.7 49.68 ± 4% perf-profile.calltrace.cycles-pp.secondary_startup_64
> 0.00 +3.5 3.54 ± 3% perf-profile.calltrace.cycles-pp.memcpy_erms.memcpy_from_page._copy_from_iter_full.tcp_sendmsg_locked.tcp_sendmsg
> 0.00 +3.6 3.56 ± 3% perf-profile.calltrace.cycles-pp.memcpy_from_page._copy_from_iter_full.tcp_sendmsg_locked.tcp_sendmsg.sock_sendmsg
> 0.00 +3.7 3.67 ± 3% perf-profile.calltrace.cycles-pp._copy_from_iter_full.tcp_sendmsg_locked.tcp_sendmsg.sock_sendmsg.xs_sendpages
> 2.29 ± 6% +3.8 6.05 ± 3% perf-profile.calltrace.cycles-pp.rpc_async_schedule.process_one_work.worker_thread.kthread.ret_from_fork
> 2.28 ± 6% +3.8 6.05 ± 3% perf-profile.calltrace.cycles-pp.__rpc_execute.rpc_async_schedule.process_one_work.worker_thread.kthread
> 1.86 ± 3% +3.8 5.64 ± 4% perf-profile.calltrace.cycles-pp.call_transmit.__rpc_execute.rpc_async_schedule.process_one_work.worker_thread
> 1.85 ± 3% +3.8 5.64 ± 4% perf-profile.calltrace.cycles-pp.xprt_transmit.call_transmit.__rpc_execute.rpc_async_schedule.process_one_work
> 1.80 ± 4% +3.8 5.60 ± 4% perf-profile.calltrace.cycles-pp.xs_tcp_send_request.xprt_transmit.call_transmit.__rpc_execute.rpc_async_schedule
> 1.79 ± 3% +3.8 5.60 ± 4% perf-profile.calltrace.cycles-pp.xs_sendpages.xs_tcp_send_request.xprt_transmit.call_transmit.__rpc_execute
> 0.00 +5.5 5.47 ± 4% perf-profile.calltrace.cycles-pp.tcp_sendmsg_locked.tcp_sendmsg.sock_sendmsg.xs_sendpages.xs_tcp_send_request
> 0.00 +5.6 5.56 ± 4% perf-profile.calltrace.cycles-pp.tcp_sendmsg.sock_sendmsg.xs_sendpages.xs_tcp_send_request.xprt_transmit
> 0.00 +5.6 5.57 ± 4% perf-profile.calltrace.cycles-pp.sock_sendmsg.xs_sendpages.xs_tcp_send_request.xprt_transmit.call_transmit
> 20.37 -3.3 17.04 ± 5% perf-profile.children.cycles-pp.svc_process_common
> 20.38 -3.3 17.04 ± 5% perf-profile.children.cycles-pp.svc_process
> 20.27 -3.3 16.95 ± 5% perf-profile.children.cycles-pp.nfsd_dispatch
> 20.21 -3.3 16.91 ± 5% perf-profile.children.cycles-pp.nfsd4_proc_compound
> 26.02 -3.1 22.91 ± 4% perf-profile.children.cycles-pp.nfsd
> 15.88 ± 5% -1.9 13.95 ± 3% perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
> 15.87 ± 5% -1.9 13.95 ± 4% perf-profile.children.cycles-pp.do_syscall_64
> 12.61 ± 3% -1.9 10.73 ± 3% perf-profile.children.cycles-pp.__filemap_fdatawrite_range
> 12.60 ± 3% -1.9 10.73 ± 3% perf-profile.children.cycles-pp.do_writepages
> 9.04 ± 2% -1.9 7.18 ± 7% perf-profile.children.cycles-pp.nfsd_vfs_write
> 9.02 ± 2% -1.9 7.17 ± 7% perf-profile.children.cycles-pp.do_iter_readv_writev
> 9.02 ± 2% -1.9 7.16 ± 7% perf-profile.children.cycles-pp.xfs_file_buffered_aio_write
> 9.03 ± 2% -1.9 7.18 ± 7% perf-profile.children.cycles-pp.do_iter_write
> 9.07 ± 2% -1.9 7.22 ± 7% perf-profile.children.cycles-pp.nfsd4_write
> 2.21 ± 4% -1.8 0.41 ± 4% perf-profile.children.cycles-pp.inet_sendpage
> 2.17 ± 4% -1.8 0.40 ± 5% perf-profile.children.cycles-pp.tcp_sendpage
> 10.50 ± 2% -1.4 9.06 ± 4% perf-profile.children.cycles-pp.xfs_file_fsync
> 10.51 ± 2% -1.4 9.08 ± 4% perf-profile.children.cycles-pp.nfsd_commit
> 10.45 ± 2% -1.4 9.02 ± 4% perf-profile.children.cycles-pp.file_write_and_wait_range
> 9.82 ± 3% -1.4 8.45 ± 3% perf-profile.children.cycles-pp.xfs_vm_writepages
> 8.59 ± 4% -1.3 7.27 ± 4% perf-profile.children.cycles-pp.write_cache_pages
> 8.02 ± 4% -1.2 6.87 ± 4% perf-profile.children.cycles-pp.submit_bio
> 8.02 ± 4% -1.2 6.87 ± 4% perf-profile.children.cycles-pp.generic_make_request
> 8.00 ± 4% -1.1 6.85 ± 4% perf-profile.children.cycles-pp.brd_make_request
> 7.94 ± 4% -1.1 6.79 ± 4% perf-profile.children.cycles-pp.brd_do_bvec
> 10.63 ± 5% -1.1 9.49 ± 4% perf-profile.children.cycles-pp.write
> 7.55 -1.1 6.41 ± 5% perf-profile.children.cycles-pp.iomap_apply
> 7.54 -1.1 6.41 ± 6% perf-profile.children.cycles-pp.iomap_file_buffered_write
> 10.28 ± 5% -1.1 9.16 ± 4% perf-profile.children.cycles-pp.ksys_write
> 7.50 -1.1 6.37 ± 6% perf-profile.children.cycles-pp.iomap_write_actor
> 4.68 ± 5% -1.1 3.56 ± 2% perf-profile.children.cycles-pp.inet_recvmsg
> 4.68 ± 5% -1.1 3.56 ± 2% perf-profile.children.cycles-pp.tcp_recvmsg
> 10.24 ± 5% -1.1 9.12 ± 4% perf-profile.children.cycles-pp.vfs_write
> 10.08 ± 5% -1.1 8.98 ± 4% perf-profile.children.cycles-pp.__vfs_write
> 10.05 ± 5% -1.1 8.95 ± 4% perf-profile.children.cycles-pp.nfs_file_write
> 5.51 ± 5% -1.1 4.43 ± 5% perf-profile.children.cycles-pp.rpc_free_task
> 9.82 ± 5% -1.1 8.74 ± 4% perf-profile.children.cycles-pp.generic_perform_write
> 1.39 ± 5% -1.1 0.32 ± 4% perf-profile.children.cycles-pp.tcp_sendpage_locked
> 1.36 ± 5% -1.1 0.31 ± 5% perf-profile.children.cycles-pp.do_tcp_sendpages
> 5.31 ± 5% -1.0 4.27 ± 5% perf-profile.children.cycles-pp.rpc_async_release
> 4.39 ± 6% -1.0 3.40 ± 2% perf-profile.children.cycles-pp.svc_recvfrom
> 3.55 ± 5% -0.9 2.64 ± 2% perf-profile.children.cycles-pp.__skb_datagram_iter
> 3.55 ± 5% -0.9 2.64 ± 2% perf-profile.children.cycles-pp.skb_copy_datagram_iter
> 5.01 ± 6% -0.9 4.15 ± 3% perf-profile.children.cycles-pp.fsync
> 4.09 ± 7% -0.9 3.24 ± 5% perf-profile.children.cycles-pp.nfs_write_completion
> 4.90 ± 6% -0.8 4.05 ± 3% perf-profile.children.cycles-pp.__x64_sys_fsync
> 4.91 ± 6% -0.8 4.07 ± 3% perf-profile.children.cycles-pp.nfs_file_fsync
> 4.90 ± 6% -0.8 4.05 ± 3% perf-profile.children.cycles-pp.do_fsync
> 5.36 ± 4% -0.8 4.53 ± 5% perf-profile.children.cycles-pp.grab_cache_page_write_begin
> 4.39 ± 7% -0.8 3.60 ± 2% perf-profile.children.cycles-pp.filemap_write_and_wait_range
> 5.18 ± 2% -0.8 4.40 ± 5% perf-profile.children.cycles-pp.xfs_do_writepage
> 5.21 ± 4% -0.7 4.47 ± 5% perf-profile.children.cycles-pp.pagecache_get_page
> 4.90 ± 4% -0.7 4.19 ± 5% perf-profile.children.cycles-pp.brd_insert_page
> 1.38 ± 9% -0.7 0.68 ± 22% perf-profile.children.cycles-pp.xfs_ilock
> 1.41 ± 8% -0.7 0.71 ± 22% perf-profile.children.cycles-pp.call_rwsem_down_write_failed
> 1.41 ± 8% -0.7 0.71 ± 22% perf-profile.children.cycles-pp.rwsem_down_write_failed
> 1.44 ± 7% -0.7 0.74 ± 21% perf-profile.children.cycles-pp.down_write
> 4.12 ± 3% -0.6 3.52 ± 4% perf-profile.children.cycles-pp.xfs_add_to_ioend
> 1.18 ± 6% -0.6 0.61 ± 21% perf-profile.children.cycles-pp.rwsem_spin_on_owner
> 3.98 ± 5% -0.5 3.44 ± 4% perf-profile.children.cycles-pp.xfs_submit_ioend
> 6.25 -0.5 5.72 ± 4% perf-profile.children.cycles-pp.iov_iter_copy_from_user_atomic
> 2.89 ± 6% -0.5 2.38 ± 6% perf-profile.children.cycles-pp.nfs_end_page_writeback
> 2.78 ± 10% -0.5 2.29 ± 2% perf-profile.children.cycles-pp.nfs_writepages
> 3.12 ± 7% -0.5 2.64 ± 4% perf-profile.children.cycles-pp.nfs_write_begin
> 3.37 ± 4% -0.5 2.91 ± 4% perf-profile.children.cycles-pp.nfs_write_end
> 2.54 ± 4% -0.5 2.08 ± 7% perf-profile.children.cycles-pp.clear_page_erms
> 2.92 ± 5% -0.4 2.48 ± 3% perf-profile.children.cycles-pp._copy_to_iter
> 2.60 ± 4% -0.4 2.18 ± 5% perf-profile.children.cycles-pp.nfs_updatepage
> 2.71 ± 4% -0.4 2.29 ± 6% perf-profile.children.cycles-pp.add_to_page_cache_lru
> 0.75 ± 3% -0.4 0.37 ± 6% perf-profile.children.cycles-pp.release_sock
> 2.51 ± 4% -0.4 2.15 ± 7% perf-profile.children.cycles-pp.iomap_write_begin
> 2.02 ± 10% -0.3 1.67 ± 3% perf-profile.children.cycles-pp.nfs_writepages_callback
> 2.23 ± 2% -0.3 1.89 ± 4% perf-profile.children.cycles-pp.__filemap_fdatawait_range
> 0.82 ± 7% -0.3 0.47 ± 7% perf-profile.children.cycles-pp.__tcp_push_pending_frames
> 1.96 ± 11% -0.3 1.63 ± 3% perf-profile.children.cycles-pp.nfs_do_writepage
> 1.55 ± 2% -0.3 1.22 ± 5% perf-profile.children.cycles-pp.iomap_write_end
> 0.78 ± 7% -0.3 0.48 ± 6% perf-profile.children.cycles-pp.svc_send
> 1.78 ± 3% -0.3 1.48 ± 4% perf-profile.children.cycles-pp.end_page_writeback
> 1.73 ± 3% -0.3 1.45 ± 4% perf-profile.children.cycles-pp.test_clear_page_writeback
> 0.90 ± 5% -0.3 0.63 ± 8% perf-profile.children.cycles-pp.xas_load
> 0.35 ± 14% -0.2 0.10 ± 14% perf-profile.children.cycles-pp.simple_copy_to_iter
> 1.78 ± 4% -0.2 1.54 ± 7% perf-profile.children.cycles-pp.__wake_up_common
> 0.43 ± 6% -0.2 0.19 ± 7% perf-profile.children.cycles-pp.lock_sock_nested
> 1.41 ± 5% -0.2 1.18 ± 4% perf-profile.children.cycles-pp.nfs_commit_release
> 1.41 ± 5% -0.2 1.18 ± 4% perf-profile.children.cycles-pp.nfs_commit_release_pages
> 1.95 ± 4% -0.2 1.72 ± 5% perf-profile.children.cycles-pp.try_to_wake_up
> 0.64 ± 8% -0.2 0.41 ± 4% perf-profile.children.cycles-pp.svc_tcp_sendto
> 0.63 ± 8% -0.2 0.41 ± 5% perf-profile.children.cycles-pp.svc_sendto
> 0.62 ± 8% -0.2 0.41 ± 5% perf-profile.children.cycles-pp.svc_send_common
> 0.62 ± 8% -0.2 0.41 ± 5% perf-profile.children.cycles-pp.kernel_sendpage
> 1.65 ± 5% -0.2 1.44 ± 7% perf-profile.children.cycles-pp.autoremove_wake_function
> 1.34 ± 3% -0.2 1.14 ± 3% perf-profile.children.cycles-pp.wait_on_page_bit_common
> 0.98 ± 4% -0.2 0.79 ± 2% perf-profile.children.cycles-pp.poll_idle
> 0.26 ± 8% -0.2 0.08 ± 13% perf-profile.children.cycles-pp._raw_spin_lock_bh
> 1.59 ± 5% -0.2 1.42 ± 5% perf-profile.children.cycles-pp.schedule
> 0.79 ± 5% -0.2 0.62 ± 4% perf-profile.children.cycles-pp.tcp_v6_do_rcv
> 0.64 ± 5% -0.2 0.47 ± 8% perf-profile.children.cycles-pp.tcp_v6_rcv
> 0.34 ± 12% -0.2 0.18 ± 20% perf-profile.children.cycles-pp.xas_start
> 0.24 ± 26% -0.2 0.08 ± 40% perf-profile.children.cycles-pp.osq_lock
> 0.76 ± 5% -0.2 0.61 ± 5% perf-profile.children.cycles-pp.tcp_rcv_established
> 0.49 ± 26% -0.2 0.34 ± 14% perf-profile.children.cycles-pp.nfs_request_add_commit_list
> 0.66 ± 5% -0.1 0.52 ± 8% perf-profile.children.cycles-pp.ip6_input
> 0.66 ± 4% -0.1 0.51 ± 8% perf-profile.children.cycles-pp.ip6_input_finish
> 0.65 ± 4% -0.1 0.51 ± 9% perf-profile.children.cycles-pp.ip6_protocol_deliver_rcu
> 0.79 ± 8% -0.1 0.64 ± 7% perf-profile.children.cycles-pp.__set_page_dirty_nobuffers
> 0.83 ± 6% -0.1 0.69 ± 8% perf-profile.children.cycles-pp.__nfs_commit_inode
> 0.42 ± 4% -0.1 0.29 ± 5% perf-profile.children.cycles-pp.xs_stream_data_receive_workfn
> 0.42 ± 4% -0.1 0.29 ± 5% perf-profile.children.cycles-pp.xs_stream_data_receive
> 0.70 ± 4% -0.1 0.56 ± 6% perf-profile.children.cycles-pp.percpu_counter_add_batch
> 0.71 ± 4% -0.1 0.58 ± 8% perf-profile.children.cycles-pp.ipv6_rcv
> 0.86 ± 6% -0.1 0.73 ± 6% perf-profile.children.cycles-pp.__local_bh_enable_ip
> 0.78 ± 5% -0.1 0.65 ± 8% perf-profile.children.cycles-pp.process_backlog
> 0.45 ± 14% -0.1 0.32 ± 14% perf-profile.children.cycles-pp.__mutex_lock
> 1.06 ± 4% -0.1 0.93 ± 7% perf-profile.children.cycles-pp._raw_spin_lock_irqsave
> 0.86 ± 6% -0.1 0.73 ± 9% perf-profile.children.cycles-pp.pagevec_lru_move_fn
> 0.75 ± 5% -0.1 0.63 ± 8% perf-profile.children.cycles-pp.__netif_receive_skb_one_core
> 0.61 ± 8% -0.1 0.49 ± 9% perf-profile.children.cycles-pp.iomap_set_page_dirty
> 0.94 ± 5% -0.1 0.81 ± 8% perf-profile.children.cycles-pp.__lru_cache_add
> 0.82 ± 6% -0.1 0.70 ± 2% perf-profile.children.cycles-pp.clear_page_dirty_for_io
> 0.80 ± 6% -0.1 0.68 ± 7% perf-profile.children.cycles-pp.net_rx_action
> 0.94 ± 2% -0.1 0.82 ± 3% perf-profile.children.cycles-pp.io_schedule
> 0.81 ± 7% -0.1 0.70 ± 7% perf-profile.children.cycles-pp.do_softirq_own_stack
> 0.69 -0.1 0.58 ± 5% perf-profile.children.cycles-pp.nfs_create_request
> 0.62 ± 4% -0.1 0.51 ± 5% perf-profile.children.cycles-pp.__pagevec_lru_add_fn
> 0.32 ± 4% -0.1 0.21 ± 11% perf-profile.children.cycles-pp.xs_sock_recvmsg
> 0.49 ± 12% -0.1 0.38 ± 7% perf-profile.children.cycles-pp.sched_ttwu_pending
> 0.82 ± 6% -0.1 0.72 ± 7% perf-profile.children.cycles-pp.do_softirq
> 0.32 ± 10% -0.1 0.22 ± 7% perf-profile.children.cycles-pp.xfs_map_blocks
> 0.40 ± 13% -0.1 0.30 ± 12% perf-profile.children.cycles-pp.mutex_spin_on_owner
> 0.47 ± 2% -0.1 0.38 ± 5% perf-profile.children.cycles-pp.kmem_cache_alloc
> 0.26 ± 4% -0.1 0.17 ± 8% perf-profile.children.cycles-pp.__wake_up_common_lock
> 0.52 ± 6% -0.1 0.43 ± 4% perf-profile.children.cycles-pp.account_page_dirtied
> 0.22 ± 16% -0.1 0.13 ± 9% perf-profile.children.cycles-pp.__check_object_size
> 0.50 ± 8% -0.1 0.42 ± 7% perf-profile.children.cycles-pp.iomap_set_range_uptodate
> 0.41 ± 3% -0.1 0.33 ± 14% perf-profile.children.cycles-pp.__set_page_dirty
> 0.31 ± 11% -0.1 0.24 ± 11% perf-profile.children.cycles-pp.nfs_io_completion_release
> 0.41 ± 8% -0.1 0.33 ± 7% perf-profile.children.cycles-pp.nfs_inode_remove_request
> 0.25 ± 9% -0.1 0.18 ± 8% perf-profile.children.cycles-pp.xfs_iomap_write_allocate
> 0.33 ± 8% -0.1 0.26 ± 4% perf-profile.children.cycles-pp.___might_sleep
> 0.25 ± 5% -0.1 0.18 ± 15% perf-profile.children.cycles-pp.__xa_set_mark
> 0.31 ± 9% -0.1 0.24 ± 5% perf-profile.children.cycles-pp.nfs_scan_commit_list
> 0.25 ± 5% -0.1 0.18 ± 8% perf-profile.children.cycles-pp.__x86_indirect_thunk_rax
> 0.45 ± 6% -0.1 0.39 ± 4% perf-profile.children.cycles-pp.nfs_lock_and_join_requests
> 0.50 ± 4% -0.1 0.45 ± 5% perf-profile.children.cycles-pp.nfs_page_group_destroy
> 0.19 ± 11% -0.1 0.14 ± 8% perf-profile.children.cycles-pp.xfs_bmap_btalloc
> 0.21 ± 2% -0.1 0.15 ± 14% perf-profile.children.cycles-pp.__lock_sock
> 0.17 ± 8% -0.1 0.12 ± 7% perf-profile.children.cycles-pp.xfs_alloc_ag_vextent
> 0.18 ± 9% -0.1 0.13 ± 6% perf-profile.children.cycles-pp.xfs_alloc_vextent
> 0.20 ± 12% -0.1 0.15 ± 5% perf-profile.children.cycles-pp.xfs_bmapi_write
> 0.30 ± 9% -0.0 0.25 ± 5% perf-profile.children.cycles-pp.select_task_rq_fair
> 0.16 ± 8% -0.0 0.11 ± 7% perf-profile.children.cycles-pp.xfs_alloc_ag_vextent_near
> 0.16 ± 15% -0.0 0.12 ± 17% perf-profile.children.cycles-pp.__generic_write_end
> 0.48 ± 2% -0.0 0.44 ± 7% perf-profile.children.cycles-pp.dequeue_task_fair
> 0.31 ± 2% -0.0 0.27 ± 10% perf-profile.children.cycles-pp.release_pages
> 0.20 ± 4% -0.0 0.17 ± 10% perf-profile.children.cycles-pp.nfs_initiate_commit
> 0.17 ± 10% -0.0 0.13 ± 5% perf-profile.children.cycles-pp.__might_sleep
> 0.29 ± 6% -0.0 0.26 ± 4% perf-profile.children.cycles-pp.dec_zone_page_state
> 0.23 ± 7% -0.0 0.20 ± 7% perf-profile.children.cycles-pp.__pagevec_release
> 0.19 ± 9% -0.0 0.15 ± 9% perf-profile.children.cycles-pp.nfs_get_lock_context
> 0.17 ± 13% -0.0 0.13 ± 8% perf-profile.children.cycles-pp.check_preempt_curr
> 0.09 ± 17% -0.0 0.06 ± 20% perf-profile.children.cycles-pp.memset_erms
> 0.14 ± 8% -0.0 0.11 ± 6% perf-profile.children.cycles-pp.nfs_request_remove_commit_list
> 0.07 ± 10% -0.0 0.04 ± 58% perf-profile.children.cycles-pp.xfs_defer_finish_noroll
> 0.15 ± 5% -0.0 0.12 ± 6% perf-profile.children.cycles-pp.__nfs_find_lock_context
> 0.19 ± 4% -0.0 0.16 ± 11% perf-profile.children.cycles-pp.mem_cgroup_try_charge
> 0.17 ± 8% -0.0 0.15 ± 10% perf-profile.children.cycles-pp.vfs_create
> 0.16 ± 2% -0.0 0.14 ± 8% perf-profile.children.cycles-pp.__fprop_inc_percpu_max
> 0.16 ± 8% -0.0 0.13 ± 8% perf-profile.children.cycles-pp.xfs_create
> 0.10 ± 4% -0.0 0.07 ± 17% perf-profile.children.cycles-pp.xfs_file_aio_write_checks
> 0.11 ± 10% -0.0 0.08 ± 15% perf-profile.children.cycles-pp.nfs_pageio_doio
> 0.11 ± 10% -0.0 0.08 ± 15% perf-profile.children.cycles-pp.nfs_generic_pg_pgios
> 0.19 ± 4% -0.0 0.17 ± 7% perf-profile.children.cycles-pp.update_rq_clock
> 0.15 ± 4% -0.0 0.13 ± 5% perf-profile.children.cycles-pp.__xfs_trans_commit
> 0.08 ± 15% -0.0 0.06 ± 6% perf-profile.children.cycles-pp.get_mem_cgroup_from_mm
> 0.06 ± 15% +0.0 0.07 ± 14% perf-profile.children.cycles-pp.selinux_ip_postroute
> 0.08 ± 16% +0.0 0.10 ± 10% perf-profile.children.cycles-pp.nf_hook_slow
> 0.04 ± 60% +0.0 0.08 ± 19% perf-profile.children.cycles-pp.__inc_numa_state
> 0.03 ±100% +0.0 0.07 ± 12% perf-profile.children.cycles-pp.get_task_policy
> 0.41 ± 6% +0.0 0.46 perf-profile.children.cycles-pp.__release_sock
> 0.14 ± 11% +0.1 0.19 ± 8% perf-profile.children.cycles-pp.__list_add_valid
> 0.09 ± 17% +0.1 0.14 ± 10% perf-profile.children.cycles-pp.svc_xprt_do_enqueue
> 0.14 ± 10% +0.1 0.20 ± 2% perf-profile.children.cycles-pp.tcp_clean_rtx_queue
> 0.00 +0.1 0.06 ± 11% perf-profile.children.cycles-pp.free_unref_page_commit
> 0.10 ± 11% +0.1 0.17 ± 6% perf-profile.children.cycles-pp.iov_iter_advance
> 0.17 ± 9% +0.1 0.24 ± 2% perf-profile.children.cycles-pp.tcp_ack
> 0.11 ± 21% +0.1 0.18 ± 2% perf-profile.children.cycles-pp.schedule_timeout
> 0.00 +0.1 0.08 ± 17% perf-profile.children.cycles-pp.free_one_page
> 0.23 ± 12% +0.1 0.32 ± 4% perf-profile.children.cycles-pp.__kfree_skb
> 0.10 ± 4% +0.1 0.19 ± 6% perf-profile.children.cycles-pp.xas_create
> 0.12 ± 17% +0.1 0.24 ± 4% perf-profile.children.cycles-pp.skb_release_data
> 0.00 +0.1 0.14 ± 5% perf-profile.children.cycles-pp.__free_pages_ok
> 0.00 +0.2 0.21 ± 9% perf-profile.children.cycles-pp.skb_page_frag_refill
> 0.00 +0.2 0.22 ± 9% perf-profile.children.cycles-pp.sk_page_frag_refill
> 0.00 +0.2 0.25 ± 5% perf-profile.children.cycles-pp.__sk_flush_backlog
> 0.03 ±100% +0.4 0.39 ± 7% perf-profile.children.cycles-pp.free_pcppages_bulk
> 0.07 ± 29% +0.5 0.54 ± 6% perf-profile.children.cycles-pp.free_unref_page
> 4.86 ± 6% +0.5 5.40 ± 2% perf-profile.children.cycles-pp.svc_recv
> 9.98 ± 4% +2.5 12.44 ± 4% perf-profile.children.cycles-pp.worker_thread
> 9.61 ± 4% +2.5 12.15 ± 4% perf-profile.children.cycles-pp.process_one_work
> 47.02 ± 3% +2.7 49.68 ± 4% perf-profile.children.cycles-pp.secondary_startup_64
> 47.02 ± 3% +2.7 49.68 ± 4% perf-profile.children.cycles-pp.cpu_startup_entry
> 47.02 ± 3% +2.7 49.69 ± 4% perf-profile.children.cycles-pp.do_idle
> 6.12 ± 2% +2.8 8.88 ± 3% perf-profile.children.cycles-pp.memcpy_erms
> 0.00 +3.6 3.58 ± 3% perf-profile.children.cycles-pp.memcpy_from_page
> 0.00 +3.7 3.68 ± 3% perf-profile.children.cycles-pp._copy_from_iter_full
> 2.43 ± 6% +3.8 6.20 ± 3% perf-profile.children.cycles-pp.__rpc_execute
> 2.29 ± 6% +3.8 6.05 ± 3% perf-profile.children.cycles-pp.rpc_async_schedule
> 1.93 ± 3% +3.8 5.71 ± 4% perf-profile.children.cycles-pp.call_transmit
> 1.92 ± 4% +3.8 5.71 ± 4% perf-profile.children.cycles-pp.xprt_transmit
> 1.87 ± 4% +3.8 5.67 ± 4% perf-profile.children.cycles-pp.xs_tcp_send_request
> 1.86 ± 4% +3.8 5.67 ± 4% perf-profile.children.cycles-pp.xs_sendpages
> 0.21 ± 7% +5.3 5.54 ± 4% perf-profile.children.cycles-pp.tcp_sendmsg_locked
> 0.24 ± 8% +5.4 5.63 ± 4% perf-profile.children.cycles-pp.tcp_sendmsg
> 0.25 ± 9% +5.4 5.64 ± 4% perf-profile.children.cycles-pp.sock_sendmsg
> 1.17 ± 7% -0.6 0.61 ± 21% perf-profile.self.cycles-pp.rwsem_spin_on_owner
> 2.50 ± 4% -0.5 2.05 ± 7% perf-profile.self.cycles-pp.clear_page_erms
> 2.46 ± 4% -0.4 2.06 ± 5% perf-profile.self.cycles-pp.brd_do_bvec
> 0.22 ± 10% -0.2 0.03 ±100% perf-profile.self.cycles-pp.__skb_datagram_iter
> 1.53 ± 6% -0.2 1.34 ± 3% perf-profile.self.cycles-pp._raw_spin_lock
> 0.91 ± 4% -0.2 0.74 ± 2% perf-profile.self.cycles-pp.poll_idle
> 0.24 ± 25% -0.2 0.08 ± 40% perf-profile.self.cycles-pp.osq_lock
> 0.74 ± 14% -0.2 0.59 ± 10% perf-profile.self.cycles-pp.nfs_do_writepage
> 0.32 ± 13% -0.1 0.17 ± 18% perf-profile.self.cycles-pp.xas_start
> 0.97 ± 3% -0.1 0.84 ± 8% perf-profile.self.cycles-pp._raw_spin_lock_irqsave
> 0.57 ± 6% -0.1 0.45 ± 9% perf-profile.self.cycles-pp.xas_load
> 0.55 ± 10% -0.1 0.43 ± 7% perf-profile.self.cycles-pp.__schedule
> 0.14 ± 12% -0.1 0.03 ±100% perf-profile.self.cycles-pp._raw_spin_lock_bh
> 0.53 ± 8% -0.1 0.43 ± 9% perf-profile.self.cycles-pp.percpu_counter_add_batch
> 0.40 ± 13% -0.1 0.30 ± 12% perf-profile.self.cycles-pp.mutex_spin_on_owner
> 0.33 ± 8% -0.1 0.24 ± 12% perf-profile.self.cycles-pp.nfs_end_page_writeback
> 0.74 ± 6% -0.1 0.65 ± 8% perf-profile.self.cycles-pp.nfs_updatepage
> 0.40 ± 8% -0.1 0.31 ± 11% perf-profile.self.cycles-pp.__test_set_page_writeback
> 0.50 ± 8% -0.1 0.41 ± 7% perf-profile.self.cycles-pp.iomap_set_range_uptodate
> 0.56 ± 5% -0.1 0.48 ± 8% perf-profile.self.cycles-pp.try_to_wake_up
> 0.38 ± 8% -0.1 0.30 ± 5% perf-profile.self.cycles-pp._raw_spin_unlock_irqrestore
> 0.28 ± 9% -0.1 0.20 ± 6% perf-profile.self.cycles-pp.iomap_write_end
> 0.45 ± 7% -0.1 0.38 ± 6% perf-profile.self.cycles-pp.__pagevec_lru_add_fn
> 0.15 ± 14% -0.1 0.08 ± 27% perf-profile.self.cycles-pp.add_to_page_cache_lru
> 0.43 ± 6% -0.1 0.36 perf-profile.self.cycles-pp.clear_page_dirty_for_io
> 0.51 ± 8% -0.1 0.45 ± 7% perf-profile.self.cycles-pp.test_clear_page_writeback
> 0.20 ± 9% -0.1 0.14 ± 11% perf-profile.self.cycles-pp.xas_store
> 0.31 ± 8% -0.1 0.25 ± 4% perf-profile.self.cycles-pp.___might_sleep
> 0.15 ± 20% -0.1 0.09 ± 12% perf-profile.self.cycles-pp.__check_object_size
> 0.22 ± 6% -0.1 0.17 ± 10% perf-profile.self.cycles-pp.__x86_indirect_thunk_rax
> 0.08 ± 11% -0.0 0.03 ±100% perf-profile.self.cycles-pp.switch_mm_irqs_off
> 0.28 ± 4% -0.0 0.24 ± 10% perf-profile.self.cycles-pp.release_pages
> 0.27 ± 8% -0.0 0.23 ± 2% perf-profile.self.cycles-pp.dec_zone_page_state
> 0.19 ± 6% -0.0 0.15 ± 12% perf-profile.self.cycles-pp.kmem_cache_alloc
> 0.15 ± 10% -0.0 0.11 ± 7% perf-profile.self.cycles-pp.__might_sleep
> 0.25 ± 10% -0.0 0.21 ± 6% perf-profile.self.cycles-pp.wait_on_page_bit_common
> 0.07 ± 12% -0.0 0.03 ±100% perf-profile.self.cycles-pp.___slab_alloc
> 0.23 ± 7% -0.0 0.20 ± 10% perf-profile.self.cycles-pp._raw_spin_lock_irq
> 0.18 ± 5% -0.0 0.15 ± 2% perf-profile.self.cycles-pp.select_task_rq_fair
> 0.14 ± 5% -0.0 0.11 ± 17% perf-profile.self.cycles-pp.alloc_pages_current
> 0.09 ± 16% -0.0 0.06 ± 20% perf-profile.self.cycles-pp.memset_erms
> 0.10 ± 8% -0.0 0.07 perf-profile.self.cycles-pp._cond_resched
> 0.15 ± 4% -0.0 0.12 ± 6% perf-profile.self.cycles-pp.__nfs_find_lock_context
> 0.11 ± 13% -0.0 0.09 ± 14% perf-profile.self.cycles-pp.nfs_request_add_commit_list_locked
> 0.09 ± 4% -0.0 0.07 perf-profile.self.cycles-pp.nfs_request_remove_commit_list
> 0.08 ± 10% -0.0 0.06 ± 11% perf-profile.self.cycles-pp.get_mem_cgroup_from_mm
> 0.08 ± 10% -0.0 0.06 ± 11% perf-profile.self.cycles-pp.nfs_request_add_commit_list
> 0.10 ± 5% -0.0 0.08 ± 5% perf-profile.self.cycles-pp.___perf_sw_event
> 0.08 ± 13% +0.0 0.11 ± 10% perf-profile.self.cycles-pp.mem_cgroup_commit_charge
> 0.03 ±100% +0.0 0.07 ± 12% perf-profile.self.cycles-pp.run_timer_softirq
> 0.03 ±100% +0.0 0.07 ± 12% perf-profile.self.cycles-pp.get_task_policy
> 0.03 ±100% +0.0 0.07 ± 17% perf-profile.self.cycles-pp.__inc_numa_state
> 0.03 ±102% +0.1 0.08 ± 8% perf-profile.self.cycles-pp.svc_recv
> 0.11 ± 13% +0.1 0.17 ± 12% perf-profile.self.cycles-pp.__list_add_valid
> 0.09 ± 14% +0.1 0.16 ± 9% perf-profile.self.cycles-pp.iov_iter_advance
> 0.06 ± 13% +0.1 0.15 ± 8% perf-profile.self.cycles-pp.xas_create
> 0.00 +0.1 0.15 ± 14% perf-profile.self.cycles-pp.tcp_sendmsg_locked
> 0.00 +0.2 0.20 ± 11% perf-profile.self.cycles-pp.free_pcppages_bulk
> 0.04 ± 60% +0.2 0.28 ± 7% perf-profile.self.cycles-pp.svc_tcp_recvfrom
> 1.25 +0.3 1.52 ± 5% perf-profile.self.cycles-pp.get_page_from_freelist
> 6.04 ± 2% +2.7 8.74 ± 3% perf-profile.self.cycles-pp.memcpy_erms
>
>
>
> fsmark.time.percent_of_cpu_this_job_got
>
> 320 +-+-------------------------------------------------------------------+
> | |
> 300 +-++. + |
> |. +.. .+. +.. +.. +. .. + .+.|
> 280 +-+ +.+. +.. : + .+..+. .+. .+. .+.+.. .. + +. |
> | : + + +. +. +. .+ |
> 260 +-+ + + |
> | |
> 240 +-+ |
> | |
> 220 +-+ |
> | O O O O O O O |
> 200 O-+ O O O O O O O O |
> | O O O O O O O O O O |
> 180 +-+-------------------------------------------------------------------+
>
>
> fsmark.time.elapsed_time
>
> 32 +-+O-------------------------------------------------------------------+
> O O O O O O O O O O O O |
> 31 +-+ O O O O O O O O O O O O |
> 30 +-+ O |
> | |
> 29 +-+ |
> 28 +-+ |
> | |
> 27 +-+ |
> 26 +-+ .+ |
> | + + +.+.. .+. + .+. .+. |
> 25 +-+ .. + .+ + : +..+.+..+. .. + +. +. +..|
> 24 +-+ .+.+..+.+ +. + + : .. + |
> | +.+. + + |
> 23 +-+--------------------------------------------------------------------+
>
>
> fsmark.time.elapsed_time.max
>
> 32 +-+O-------------------------------------------------------------------+
> O O O O O O O O O O O O |
> 31 +-+ O O O O O O O O O O O O |
> 30 +-+ O |
> | |
> 29 +-+ |
> 28 +-+ |
> | |
> 27 +-+ |
> 26 +-+ .+ |
> | + + +.+.. .+. + .+. .+. |
> 25 +-+ .. + .+ + : +..+.+..+. .. + +. +. +..|
> 24 +-+ .+.+..+.+ +. + + : .. + |
> | +.+. + + |
> 23 +-+--------------------------------------------------------------------+
>
>
> fsmark.files_per_sec
>
> 520 +-+-------------------------------------------------------------------+
> |.. +.+. + +.. .+.. : .+. .+.. .+.+..+ |
> 500 +-+ +.. + + : +.+..+.+. +..+ .+.+. |
> 480 +-+ + + +.+. |
> | |
> 460 +-+ |
> | |
> 440 +-+ |
> | |
> 420 +-+ |
> 400 +-+ O |
> | O O O O O O O O O |
> 380 O-+ O O O O O O O O O |
> | O O O O O O |
> 360 +-+-------------------------------------------------------------------+
>
>
> [*] 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,
> Rong Chen
>
>
> _______________________________________________
> LKP mailing list
> LKP@...ts.01.org
> https://lists.01.org/mailman/listinfo/lkp
>
Do you have time to take a look at this regression?
--
Zhengjun Xing
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