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Date: Fri, 10 Apr 2020 14:44:55 +0800
From: Qu Wenruo <wqu@...e.com>
To: Xing Zhengjun <zhengjun.xing@...ux.intel.com>,
kernel test robot <rong.a.chen@...el.com>
CC: David Sterba <dsterba@...e.com>,
Linus Torvalds <torvalds@...ux-foundation.org>,
Leonard Lausen <leonard@...sen.nl>,
LKML <linux-kernel@...r.kernel.org>, <lkp@...org>
Subject: Re: [LKP] [btrfs] 8d47a0d8f7: fio.write_bw_MBps -28.6% regression
On 2020/4/10 下午2:34, Xing Zhengjun wrote:
> Hi Wenruo,
>
> We test it in v5.6, the issue still exist, do you have time to take a
> look at this? Thanks.
This is expected.
The extra check brings new overhead mostly equal to another CRC32 run.
We believe it's worthy, as our read time tree checker has exposed quite
some bit flip corruption.
Thanks,
Qu
>
> On 5/13/2019 11:17 AM, kernel test robot wrote:
>> Greeting,
>>
>> FYI, we noticed a -28.6% regression of fio.write_bw_MBps due to commit:
>>
>>
>> commit: 8d47a0d8f7947422dd359ac8e462687f81a7a137 ("btrfs: Do mandatory
>> tree block check before submitting bio")
>> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
>>
>> in testcase: fio-basic
>> on test machine: 72 threads Intel(R) Xeon(R) CPU E5-2699 v3 @ 2.30GHz
>> with 256G memory
>> with following parameters:
>>
>> disk: 2pmem
>> fs: btrfs
>> runtime: 200s
>> nr_task: 50%
>> time_based: tb
>> rw: randwrite
>> bs: 4k
>> ioengine: libaio
>> test_size: 100G
>> cpufreq_governor: performance
>> ucode: 0x3d
>>
>> test-description: Fio is a tool that will spawn a number of threads or
>> processes doing a particular type of I/O action as specified by the user.
>> test-url: https://github.com/axboe/fio
>>
>>
>>
>> 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
>>
>> =========================================================================================
>>
>> bs/compiler/cpufreq_governor/disk/fs/ioengine/kconfig/nr_task/rootfs/runtime/rw/tbox_group/test_size/testcase/time_based/ucode:
>>
>>
>> 4k/gcc-7/performance/2pmem/btrfs/libaio/x86_64-rhel-7.6/50%/debian-x86_64-2018-04-03.cgz/200s/randwrite/lkp-hsw-ep2/100G/fio-basic/tb/0x3d
>>
>>
>> commit:
>> ff2ac107fa ("btrfs: tree-checker: Remove comprehensive root owner
>> check")
>> 8d47a0d8f7 ("btrfs: Do mandatory tree block check before submitting
>> bio")
>>
>> ff2ac107fae2440b 8d47a0d8f7947422dd359ac8e46
>> ---------------- ---------------------------
>> fail:runs %reproduction fail:runs
>> | | |
>> :4 25% 1:4
>> dmesg.BUG:unable_to_handle_kernel
>> :4 25% 1:4
>> dmesg.Kernel_panic-not_syncing:Fatal_exception_in_interrupt
>> :4 25% 1:4 dmesg.Oops:#[##]
>> :4 25% 1:4
>> dmesg.RIP:cpuidle_enter_state
>> :4 25% 1:4 dmesg.RIP:native_write_msr
>> :4 25% 1:4
>> dmesg.RIP:perf_prepare_sample
>> 1:4 -25% :4
>> dmesg.WARNING:at#for_ip_interrupt_entry/0x
>> %stddev %change %stddev
>> \ | \
>> 0.01 ± 21% +0.3 0.28 ± 20% fio.latency_1000ms%
>> 4.14 ± 13% +1.8 5.95 ± 9% fio.latency_10ms%
>> 8.73 ± 15% +3.0 11.68 ± 8% fio.latency_20ms%
>> 1.91 ± 5% -0.4 1.52 ± 3% fio.latency_250ms%
>> 66.81 -5.9 60.90 ± 2% fio.latency_4ms%
>> 0.18 ± 15% +0.1 0.29 ± 16% fio.latency_750us%
>> 1.017e+08 -28.5% 72701525
>> fio.time.file_system_outputs
>> 109.75 -26.8% 80.33 ± 2%
>> fio.time.percent_of_cpu_this_job_got
>> 197.97 -26.4% 145.79 ± 2% fio.time.system_time
>> 38.66 ± 4% -24.0% 29.39 ± 3% fio.time.user_time
>> 12388015 -28.5% 8858878
>> fio.time.voluntary_context_switches
>> 12711059 -28.5% 9083954 fio.workload
>> 247.91 -28.6% 176.96 fio.write_bw_MBps
>> 309248 ± 2% +71.7% 531114 ± 4% fio.write_clat_99%_us
>> 17574 +40.0% 24609 fio.write_clat_mean_us
>> 57989 ± 4% +82.2% 105661 fio.write_clat_stddev
>> 63463 -28.6% 45302 fio.write_iops
>> 564.61 +40.2% 791.54 fio.write_slat_mean_us
>> 9375 ± 7% +96.3% 18406 fio.write_slat_stddev
>> 21.25 +8.5% 23.06 ± 9% boot-time.dhcp
>> 93.32 +1.4% 94.58 iostat.cpu.idle
>> 6.43 -18.6% 5.23 ± 2% iostat.cpu.system
>> 6.48 -1.2 5.27 ± 2% mpstat.cpu.all.sys%
>> 0.24 ± 5% -0.1 0.18 ± 2% mpstat.cpu.all.usr%
>> 93.00 +1.1% 94.00 vmstat.cpu.id
>> 591200 -30.0% 413921 vmstat.io.bo
>> 31653776 ± 2% -10.9% 28196588 ± 2% vmstat.memory.cache
>> 11927341 ± 7% +29.8% 15486805 ± 4% vmstat.memory.free
>> 5.00 -26.7% 3.67 ± 12% vmstat.procs.r
>> 635910 ± 2% -27.6% 460384 vmstat.system.cs
>> 7822384 ± 2% -25.0% 5870498
>> numa-numastat.node0.local_node
>> 7839861 ± 2% -24.8% 5893785
>> numa-numastat.node0.numa_hit
>> 224988 ± 47% -93.5% 14675 ± 48%
>> numa-numastat.node0.numa_miss
>> 242465 ± 44% -84.3% 37964 ± 18%
>> numa-numastat.node0.other_node
>> 7762623 ± 12% -26.8% 5681358 ± 6%
>> numa-numastat.node1.local_node
>> 224988 ± 47% -93.5% 14675 ± 48%
>> numa-numastat.node1.numa_foreign
>> 7768618 ± 12% -26.9% 5681573 ± 6%
>> numa-numastat.node1.numa_hit
>> 9.429e+08 ± 10% -35.4% 6.094e+08 cpuidle.C1.time
>> 53504154 ± 6% -31.8% 36504731 cpuidle.C1.usage
>> 1.093e+09 ± 22% -50.3% 5.435e+08 ± 3% cpuidle.C1E.time
>> 16541925 ± 13% -45.0% 9103775 cpuidle.C1E.usage
>> 5.366e+09 ± 36% +71.7% 9.214e+09 ± 18% cpuidle.C3.time
>> 16163664 ± 33% +57.0% 25379738 ± 5% cpuidle.C3.usage
>> 9697055 ± 16% -35.8% 6225168 ± 19% cpuidle.C6.usage
>> 19313595 ± 17% -16.3% 16166123 cpuidle.POLL.time
>> 10291838 ± 9% -26.8% 7537045 ± 7% meminfo.Active
>> 10034782 ± 9% -27.4% 7280710 ± 7% meminfo.Active(file)
>> 31524905 ± 2% -10.9% 28082249 ± 2% meminfo.Cached
>> 115157 ± 4% +61.1% 185560 ± 3% meminfo.CmaFree
>> 6430720 ± 8% +19.1% 7660885 ± 6% meminfo.DirectMap2M
>> 534230 ± 5% -12.8% 465932 ± 6% meminfo.Dirty
>> 11737322 ± 7% +30.2% 15281189 ± 4% meminfo.MemFree
>> 37604344 ± 2% -9.4% 34060483 meminfo.Memused
>> 806.50 ± 37% +137.4% 1914 ± 8% meminfo.Writeback
>> 370.50 ± 11% +36.8% 507.00
>> slabinfo.bdev_cache.active_objs
>> 370.50 ± 11% +36.8% 507.00
>> slabinfo.bdev_cache.num_objs
>> 15147 ± 5% -8.3% 13897 ± 2%
>> slabinfo.blkdev_ioc.active_objs
>> 17839 ± 6% -11.7% 15745 ± 2%
>> slabinfo.blkdev_ioc.num_objs
>> 12178 ± 4% -7.4% 11275 ± 2%
>> slabinfo.kmalloc-512.num_objs
>> 7794 ± 3% +25.4% 9774
>> slabinfo.proc_inode_cache.active_objs
>> 8017 ± 2% +23.4% 9895
>> slabinfo.proc_inode_cache.num_objs
>> 2366 ± 23% -32.6% 1595 ± 5%
>> slabinfo.task_group.active_objs
>> 2366 ± 23% -32.6% 1595 ± 5%
>> slabinfo.task_group.num_objs
>> 263.75 ± 2% -15.1% 224.00 ± 2% turbostat.Avg_MHz
>> 9.46 ± 2% -1.4 8.07 ± 2% turbostat.Busy%
>> 53502248 ± 6% -31.8% 36503898 turbostat.C1
>> 5.86 ± 8% -2.0 3.82 turbostat.C1%
>> 16540396 ± 13% -45.0% 9102733 turbostat.C1E
>> 6.80 ± 22% -3.4 3.40 ± 4% turbostat.C1E%
>> 16163332 ± 33% +57.0% 25379351 ± 5% turbostat.C3
>> 33.55 ± 36% +24.1 57.61 ± 18% turbostat.C3%
>> 9689445 ± 16% -35.8% 6221033 ± 19% turbostat.C6
>> 18.04 ± 26% +49.1% 26.90 ± 9% turbostat.CPU%c3
>> 53.25 ± 3% +10.8% 59.00 ± 4% turbostat.CoreTmp
>> 4.67 ± 14% +62.7% 7.59 ± 26% turbostat.Pkg%pc2
>> 56.50 +9.7% 62.00 ± 2% turbostat.PkgTmp
>> 11.84 -4.8% 11.28 turbostat.RAMWatt
>> 7232478 ± 10% -37.2% 4543037 ± 22% numa-meminfo.node0.Active
>> 7072564 ± 10% -37.6% 4410135 ± 23%
>> numa-meminfo.node0.Active(file)
>> 308167 ± 6% -24.7% 232152 ± 10% numa-meminfo.node0.Dirty
>> 8784028 ± 13% +21.7% 10686327 ± 2%
>> numa-meminfo.node0.Inactive
>> 8669548 ± 12% +20.7% 10465444 ± 2%
>> numa-meminfo.node0.Inactive(file)
>> 572.50 ± 22% +115.9% 1236 ± 25%
>> numa-meminfo.node0.Writeback
>> 15098140 ± 3% -17.7% 12425670 ± 3%
>> numa-meminfo.node1.FilePages
>> 11599549 ± 7% -22.3% 9018051 ± 4%
>> numa-meminfo.node1.Inactive
>> 105067 ± 92% -99.3% 725.33 ± 51%
>> numa-meminfo.node1.Inactive(anon)
>> 11494482 ± 7% -21.6% 9017325 ± 4%
>> numa-meminfo.node1.Inactive(file)
>> 5504 ± 9% -12.5% 4819 ± 2%
>> numa-meminfo.node1.KernelStack
>> 6709938 ± 11% +45.8% 9781880 ± 5% numa-meminfo.node1.MemFree
>> 18029136 ± 4% -17.0% 14957200 ± 3% numa-meminfo.node1.MemUsed
>> 4427 ± 69% -77.5% 996.00 ± 8%
>> numa-meminfo.node1.PageTables
>> 857660 ± 32% -37.2% 538646 ± 8%
>> numa-meminfo.node1.SUnreclaim
>> 109232 ± 88% -96.1% 4274 ± 10% numa-meminfo.node1.Shmem
>> 986740 ± 35% -40.0% 592452 ± 10% numa-meminfo.node1.Slab
>> 575.21 ± 15% +30.1% 748.58 ± 2%
>> sched_debug.cfs_rq:/.runnable_load_avg.max
>> 100.45 ± 15% +28.6% 129.19 ± 5%
>> sched_debug.cfs_rq:/.runnable_load_avg.stddev
>> 830.19 ± 9% +15.7% 960.25 ± 6%
>> sched_debug.cfs_rq:/.util_avg.max
>> 29.97 ± 16% -25.2% 22.43 ± 31%
>> sched_debug.cfs_rq:/.util_est_enqueued.avg
>> 591.17 ± 13% -22.2% 459.83 ± 18%
>> sched_debug.cfs_rq:/.util_est_enqueued.max
>> 107.52 ± 13% -23.0% 82.84 ± 23%
>> sched_debug.cfs_rq:/.util_est_enqueued.stddev
>> 2.06 ± 5% -9.3% 1.87
>> sched_debug.cpu.clock.stddev
>> 2.06 ± 5% -9.3% 1.87
>> sched_debug.cpu.clock_task.stddev
>> 24.51 ± 7% +21.5% 29.77 ± 8%
>> sched_debug.cpu.cpu_load[0].avg
>> 541.29 ± 15% +38.3% 748.58 ± 2%
>> sched_debug.cpu.cpu_load[0].max
>> 93.97 ± 7% +27.8% 120.09 ± 2%
>> sched_debug.cpu.cpu_load[0].stddev
>> 519.08 ± 6% +40.5% 729.42 ± 4%
>> sched_debug.cpu.cpu_load[1].max
>> 87.45 ± 5% +28.5% 112.39 ± 4%
>> sched_debug.cpu.cpu_load[1].stddev
>> 480.83 ± 7% +39.5% 670.92 ± 13%
>> sched_debug.cpu.cpu_load[2].max
>> 80.92 ± 5% +25.7% 101.75 ± 8%
>> sched_debug.cpu.cpu_load[2].stddev
>> 408.83 ± 4% +54.0% 629.58 ± 19%
>> sched_debug.cpu.cpu_load[3].max
>> 71.62 ± 2% +30.7% 93.61 ± 11%
>> sched_debug.cpu.cpu_load[3].stddev
>> 381.50 ± 8% +66.7% 636.00 ± 18%
>> sched_debug.cpu.cpu_load[4].max
>> 64.40 ± 6% +39.7% 89.96 ± 12%
>> sched_debug.cpu.cpu_load[4].stddev
>> 106.75 ± 20% -88.4% 12.33 ± 10%
>> proc-vmstat.kswapd_high_wmark_hit_quickly
>> 2508660 ± 9% -27.5% 1819662 ± 7% proc-vmstat.nr_active_file
>> 33315360 -30.4% 23192301 proc-vmstat.nr_dirtied
>> 133447 ± 5% -12.6% 116580 ± 6% proc-vmstat.nr_dirty
>> 7881043 ± 2% -10.9% 7019533 ± 2% proc-vmstat.nr_file_pages
>> 28790 ± 4% +61.1% 46392 ± 3% proc-vmstat.nr_free_cma
>> 2934503 ± 7% +30.2% 3821369 ± 4% proc-vmstat.nr_free_pages
>> 5044168 -3.4% 4872965
>> proc-vmstat.nr_inactive_file
>> 430282 -6.0% 404589
>> proc-vmstat.nr_slab_unreclaimable
>> 197.75 ± 38% +136.5% 467.67 ± 10% proc-vmstat.nr_writeback
>> 33243480 -30.4% 23143756 proc-vmstat.nr_written
>> 2508665 ± 9% -27.5% 1819662 ± 7%
>> proc-vmstat.nr_zone_active_file
>> 5044399 -3.4% 4873026
>> proc-vmstat.nr_zone_inactive_file
>> 134972 ± 5% -12.4% 118262 ± 5%
>> proc-vmstat.nr_zone_write_pending
>> 15632301 ± 5% -25.8% 11598535 ± 3% proc-vmstat.numa_hit
>> 15608826 ± 5% -25.8% 11575029 ± 3% proc-vmstat.numa_local
>> 2300530 ± 10% -31.1% 1585363 ± 10% proc-vmstat.pgactivate
>> 16955745 -26.3% 12499611 ± 2% proc-vmstat.pgalloc_normal
>> 17488000 -25.9% 12959812 ± 2% proc-vmstat.pgfree
>> 1.33e+08 -30.4% 92575440 proc-vmstat.pgpgout
>> 5728177 ± 6% -78.5% 1232433 ± 25% proc-vmstat.pgscan_kswapd
>> 5727967 ± 6% -78.5% 1232244 ± 25% proc-vmstat.pgsteal_kswapd
>> 32760 -7.6% 30285 proc-vmstat.slabs_scanned
>> 1768211 ± 10% -37.7% 1102275 ± 23%
>> numa-vmstat.node0.nr_active_file
>> 10410188 ± 7% -32.5% 7023939 ± 7%
>> numa-vmstat.node0.nr_dirtied
>> 76995 ± 6% -24.6% 58035 ± 10% numa-vmstat.node0.nr_dirty
>> 2167457 ± 12% +20.7% 2616147 ± 2%
>> numa-vmstat.node0.nr_inactive_file
>> 142.00 ± 24% +120.4% 313.00 ± 24%
>> numa-vmstat.node0.nr_writeback
>> 10308758 ± 7% -32.6% 6949497 ± 7%
>> numa-vmstat.node0.nr_written
>> 1768216 ± 10% -37.7% 1102275 ± 23%
>> numa-vmstat.node0.nr_zone_active_file
>> 2167563 ± 12% +20.7% 2616189 ± 2%
>> numa-vmstat.node0.nr_zone_inactive_file
>> 77786 ± 7% -24.3% 58899 ± 10%
>> numa-vmstat.node0.nr_zone_write_pending
>> 5889240 ± 3% -14.3% 5046874 ± 3% numa-vmstat.node0.numa_hit
>> 5837851 ± 4% -14.0% 5023120 ± 3%
>> numa-vmstat.node0.numa_local
>> 68376 ± 48% -96.9% 2149 ± 46%
>> numa-vmstat.node0.numa_miss
>> 119766 ± 42% -78.4% 25904 ± 3%
>> numa-vmstat.node0.numa_other
>> 30.50 ± 38% -100.0% 0.00
>> numa-vmstat.node0.workingset_nodes
>> 6829126 ± 6% -22.8% 5269898 ± 10%
>> numa-vmstat.node1.nr_dirtied
>> 3774645 ± 3% -17.7% 3106081 ± 3%
>> numa-vmstat.node1.nr_file_pages
>> 28796 ± 4% +61.1% 46405 ± 3%
>> numa-vmstat.node1.nr_free_cma
>> 1677332 ± 11% +45.8% 2445778 ± 5%
>> numa-vmstat.node1.nr_free_pages
>> 26266 ± 92% -99.3% 180.67 ± 51%
>> numa-vmstat.node1.nr_inactive_anon
>> 2873702 ± 7% -21.6% 2254116 ± 4%
>> numa-vmstat.node1.nr_inactive_file
>> 5506 ± 9% -12.5% 4820 ± 2%
>> numa-vmstat.node1.nr_kernel_stack
>> 29031 ± 85% -88.2% 3436
>> numa-vmstat.node1.nr_mapped
>> 1106 ± 69% -77.5% 249.00 ± 8%
>> numa-vmstat.node1.nr_page_table_pages
>> 27308 ± 88% -96.1% 1068 ± 10% numa-vmstat.node1.nr_shmem
>> 214418 ± 32% -37.2% 134663 ± 8%
>> numa-vmstat.node1.nr_slab_unreclaimable
>> 75.00 ± 35% +145.3% 184.00 ± 18%
>> numa-vmstat.node1.nr_writeback
>> 6761224 ± 6% -23.1% 5202586 ± 10%
>> numa-vmstat.node1.nr_written
>> 26266 ± 92% -99.3% 180.67 ± 51%
>> numa-vmstat.node1.nr_zone_inactive_anon
>> 2873810 ± 7% -21.6% 2254135 ± 4%
>> numa-vmstat.node1.nr_zone_inactive_file
>> 68381 ± 48% -96.9% 2152 ± 46%
>> numa-vmstat.node1.numa_foreign
>> 5035283 ± 15% -26.9% 3679318 ± 7% numa-vmstat.node1.numa_hit
>> 4905249 ± 15% -28.2% 3522229 ± 8%
>> numa-vmstat.node1.numa_local
>> 18.43 ± 6% -28.3% 13.21 ± 3% perf-stat.i.MPKI
>> 2.205e+09 ± 3% +10.5% 2.437e+09
>> perf-stat.i.branch-instructions
>> 1.83 ± 5% -0.6 1.24 ± 7%
>> perf-stat.i.branch-miss-rate%
>> 37019551 ± 3% -29.4% 26140844 ± 5% perf-stat.i.branch-misses
>> 28932020 ± 6% -31.1% 19933819 ± 3% perf-stat.i.cache-misses
>> 2.03e+08 ± 4% -24.8% 1.526e+08
>> perf-stat.i.cache-references
>> 645248 ± 2% -27.4% 468301
>> perf-stat.i.context-switches
>> 1.97 ± 7% -22.1% 1.53 ± 2% perf-stat.i.cpi
>> 1.983e+10 ± 3% -15.1% 1.684e+10 perf-stat.i.cpu-cycles
>> 1.03 ± 5% -0.4 0.64 ± 10%
>> perf-stat.i.dTLB-load-miss-rate%
>> 31879502 ± 6% -37.9% 19807598 ± 9%
>> perf-stat.i.dTLB-load-misses
>> 3.201e+09 ± 3% +18.8% 3.804e+09 perf-stat.i.dTLB-loads
>> 0.13 ± 7% -0.0 0.09 ± 10%
>> perf-stat.i.dTLB-store-miss-rate%
>> 2516181 ± 10% -28.3% 1805272 ± 10%
>> perf-stat.i.dTLB-store-misses
>> 2.143e+09 ± 3% +19.8% 2.568e+09 ± 2% perf-stat.i.dTLB-stores
>> 13781489 ± 3% -28.4% 9866239 ± 3% perf-stat.i.iTLB-loads
>> 1.164e+10 ± 3% +21.6% 1.415e+10 perf-stat.i.instructions
>> 8435 ± 17% +42.5% 12023 ± 14%
>> perf-stat.i.instructions-per-iTLB-miss
>> 0.57 ± 3% +43.6% 0.82 perf-stat.i.ipc
>> 16050361 ± 9% -30.7% 11127721 ± 3%
>> perf-stat.i.node-load-misses
>> 8120610 ± 9% -31.3% 5580996 perf-stat.i.node-loads
>> 2591649 ± 13% -31.1% 1785932 ± 6%
>> perf-stat.i.node-store-misses
>> 1809775 ± 12% -31.2% 1244360 ± 2% perf-stat.i.node-stores
>> 17.45 ± 4% -38.2% 10.79 perf-stat.overall.MPKI
>> 1.68 ± 3% -0.6 1.07 ± 5%
>> perf-stat.overall.branch-miss-rate%
>> 1.70 ± 3% -30.2% 1.19 perf-stat.overall.cpi
>> 689.69 ± 9% +22.6% 845.48 ± 2%
>> perf-stat.overall.cycles-between-cache-misses
>> 0.99 ± 5% -0.5 0.52 ± 10%
>> perf-stat.overall.dTLB-load-miss-rate%
>> 0.12 ± 8% -0.0 0.07 ± 10%
>> perf-stat.overall.dTLB-store-miss-rate%
>> 10.81 ± 14% +2.3 13.09 ± 10%
>> perf-stat.overall.iTLB-load-miss-rate%
>> 7119 ± 14% +35.9% 9679 ± 13%
>> perf-stat.overall.instructions-per-iTLB-miss
>> 0.59 ± 3% +43.1% 0.84 perf-stat.overall.ipc
>> 202912 ± 2% +68.8% 342615 ± 3%
>> perf-stat.overall.path-length
>> 2.195e+09 ± 3% +10.5% 2.425e+09
>> perf-stat.ps.branch-instructions
>> 36847010 ± 3% -29.4% 26015686 ± 5% perf-stat.ps.branch-misses
>> 28799092 ± 6% -31.1% 19837306 ± 3% perf-stat.ps.cache-misses
>> 2.021e+08 ± 4% -24.8% 1.519e+08
>> perf-stat.ps.cache-references
>> 642266 ± 2% -27.4% 465968
>> perf-stat.ps.context-switches
>> 1.974e+10 ± 3% -15.1% 1.676e+10 perf-stat.ps.cpu-cycles
>> 31729472 ± 6% -37.9% 19715594 ± 9%
>> perf-stat.ps.dTLB-load-misses
>> 3.186e+09 ± 3% +18.8% 3.785e+09 perf-stat.ps.dTLB-loads
>> 2504443 ± 10% -28.2% 1797154 ± 10%
>> perf-stat.ps.dTLB-store-misses
>> 2.133e+09 ± 3% +19.8% 2.556e+09 ± 2% perf-stat.ps.dTLB-stores
>> 13717699 ± 3% -28.4% 9816979 ± 3% perf-stat.ps.iTLB-loads
>> 1.159e+10 ± 3% +21.5% 1.408e+10 perf-stat.ps.instructions
>> 15979371 ± 9% -30.7% 11073468 ± 3%
>> perf-stat.ps.node-load-misses
>> 8081205 ± 9% -31.3% 5554114 perf-stat.ps.node-loads
>> 2580198 ± 13% -31.1% 1777169 ± 6%
>> perf-stat.ps.node-store-misses
>> 1801590 ± 12% -31.3% 1238321 ± 2% perf-stat.ps.node-stores
>> 2.579e+12 +20.6% 3.111e+12 ± 2%
>> perf-stat.total.instructions
>> 36149 ± 4% -26.2% 26686 ± 5% softirqs.CPU0.RCU
>> 37255 ± 3% -26.8% 27256 ± 2% softirqs.CPU1.RCU
>> 37834 ± 5% -26.5% 27801 ± 9% softirqs.CPU10.RCU
>> 39075 ± 3% -24.5% 29494 ± 2% softirqs.CPU11.RCU
>> 38137 ± 6% -23.1% 29340 ± 4% softirqs.CPU12.RCU
>> 37480 ± 3% -20.5% 29797 ± 2% softirqs.CPU13.RCU
>> 37690 ± 5% -28.7% 26861 ± 4% softirqs.CPU14.RCU
>> 33863 ± 9% -29.5% 23885 ± 5% softirqs.CPU15.RCU
>> 34306 ± 9% -31.1% 23641 ± 12% softirqs.CPU16.RCU
>> 34374 ± 9% -29.0% 24402 ± 7% softirqs.CPU17.RCU
>> 44013 ± 9% -31.7% 30059 softirqs.CPU18.RCU
>> 43114 ± 8% -29.9% 30219 softirqs.CPU19.RCU
>> 36276 ± 8% -23.3% 27825 ± 5% softirqs.CPU2.RCU
>> 67049 ± 7% +39.1% 93267 ± 18% softirqs.CPU2.TIMER
>> 39721 ± 13% -31.4% 27233 ± 3% softirqs.CPU20.RCU
>> 42340 ± 5% -28.6% 30215 ± 6% softirqs.CPU21.RCU
>> 40896 ± 7% -30.3% 28506 ± 2% softirqs.CPU22.RCU
>> 42422 ± 7% -33.2% 28357 ± 2% softirqs.CPU23.RCU
>> 42330 ± 9% -33.5% 28150 ± 5% softirqs.CPU24.RCU
>> 41406 ± 9% -31.4% 28398 softirqs.CPU25.RCU
>> 39754 ± 5% -29.4% 28063 softirqs.CPU26.RCU
>> 40207 ± 6% -27.9% 28995 ± 12% softirqs.CPU27.RCU
>> 40351 ± 9% -29.4% 28487 ± 3% softirqs.CPU28.RCU
>> 41880 ± 5% -29.6% 29472 softirqs.CPU29.RCU
>> 36293 ± 4% -17.7% 29864 ± 7% softirqs.CPU3.RCU
>> 39341 ± 9% -34.3% 25847 softirqs.CPU30.RCU
>> 39687 ± 9% -33.5% 26400 ± 2% softirqs.CPU31.RCU
>> 38062 ± 14% -39.9% 22878 ± 10% softirqs.CPU32.RCU
>> 39769 ± 13% -33.8% 26314 ± 5% softirqs.CPU33.RCU
>> 39504 ± 10% -37.2% 24824 ± 6% softirqs.CPU34.RCU
>> 39591 ± 11% -38.6% 24300 ± 5% softirqs.CPU35.RCU
>> 40398 ± 8% -27.0% 29488 ± 12% softirqs.CPU36.RCU
>> 39464 ± 12% -25.3% 29478 ± 10% softirqs.CPU37.RCU
>> 41177 ± 9% -34.0% 27190 ± 19% softirqs.CPU38.RCU
>> 38734 ± 13% -24.8% 29145 ± 5% softirqs.CPU39.RCU
>> 36804 ± 5% -23.0% 28354 softirqs.CPU4.RCU
>> 40421 ± 12% -28.8% 28776 ± 6% softirqs.CPU40.RCU
>> 40371 ± 11% -31.1% 27834 ± 8% softirqs.CPU41.RCU
>> 40633 ± 10% -29.9% 28469 ± 10% softirqs.CPU42.RCU
>> 41018 ± 9% -33.6% 27252 ± 6% softirqs.CPU43.RCU
>> 38181 ± 12% -27.0% 27856 ± 10% softirqs.CPU44.RCU
>> 39605 ± 12% -32.3% 26803 ± 12% softirqs.CPU45.RCU
>> 42686 ± 11% -29.7% 30016 ± 9% softirqs.CPU47.RCU
>> 40433 ± 9% -31.8% 27586 ± 11% softirqs.CPU48.RCU
>> 38371 ± 12% -23.0% 29528 ± 7% softirqs.CPU49.RCU
>> 37172 ± 2% -25.9% 27562 ± 3% softirqs.CPU5.RCU
>> 39660 ± 12% -27.5% 28752 ± 11% softirqs.CPU50.RCU
>> 40375 ± 10% -26.7% 29582 ± 3% softirqs.CPU51.RCU
>> 40568 ± 9% -28.8% 28886 ± 6% softirqs.CPU52.RCU
>> 39967 ± 10% -27.3% 29073 ± 11% softirqs.CPU53.RCU
>> 40874 ± 11% -37.1% 25725 ± 6% softirqs.CPU54.RCU
>> 41227 ± 14% -37.9% 25606 ± 6% softirqs.CPU55.RCU
>> 38856 ± 13% -34.7% 25380 ± 8% softirqs.CPU56.RCU
>> 39618 ± 13% -39.1% 24119 ± 4% softirqs.CPU57.RCU
>> 39412 ± 12% -36.6% 24970 ± 3% softirqs.CPU58.RCU
>> 41572 ± 14% -41.3% 24399 ± 10% softirqs.CPU59.RCU
>> 36927 ± 3% -24.4% 27923 ± 22% softirqs.CPU6.RCU
>> 37057 ± 10% -31.8% 25261 ± 2% softirqs.CPU60.RCU
>> 36584 ± 8% -27.8% 26419 ± 2% softirqs.CPU61.RCU
>> 35859 ± 4% -28.2% 25729 ± 5% softirqs.CPU62.RCU
>> 35849 ± 7% -33.2% 23933 ± 5% softirqs.CPU63.RCU
>> 35379 ± 6% -26.4% 26041 ± 4% softirqs.CPU64.RCU
>> 36908 ± 6% -26.5% 27110 ± 2% softirqs.CPU65.RCU
>> 37595 ± 3% -26.1% 27783 ± 4% softirqs.CPU66.RCU
>> 36327 ± 2% -27.0% 26533 ± 2% softirqs.CPU67.RCU
>> 35136 ± 7% -31.7% 23998 ± 9% softirqs.CPU68.RCU
>> 35638 ± 4% -28.6% 25435 ± 4% softirqs.CPU69.RCU
>> 37268 ± 6% -25.4% 27786 ± 4% softirqs.CPU7.RCU
>> 36693 ± 4% -29.2% 25986 ± 5% softirqs.CPU70.RCU
>> 36859 ± 3% -28.8% 26260 ± 4% softirqs.CPU71.RCU
>> 37539 ± 7% -27.7% 27144 ± 4% softirqs.CPU8.RCU
>> 37584 ± 4% -26.0% 27802 ± 15% softirqs.CPU9.RCU
>> 2795313 ± 7% -29.7% 1964363 ± 4% softirqs.RCU
>> 249.50 ± 76% -50.4% 123.67 ± 2%
>> interrupts.41:PCI-MSI.1572870-edge.eth0-TxRx-6
>> 154.50 ± 13% -10.9% 137.67 ± 10%
>> interrupts.42:PCI-MSI.1572871-edge.eth0-TxRx-7
>> 150.50 ± 43% -28.0% 108.33
>> interrupts.84:PCI-MSI.1572913-edge.eth0-TxRx-49
>> 10393 ± 10% -26.4% 7653 ± 10%
>> interrupts.CPU1.RES:Rescheduling_interrupts
>> 12518 ± 15% -31.0% 8642 ± 21%
>> interrupts.CPU10.RES:Rescheduling_interrupts
>> 945.25 ± 79% -75.4% 232.67 ±141%
>> interrupts.CPU11.NMI:Non-maskable_interrupts
>> 945.25 ± 79% -75.4% 232.67 ±141%
>> interrupts.CPU11.PMI:Performance_monitoring_interrupts
>> 13068 ± 18% -30.6% 9075 ± 23%
>> interrupts.CPU11.RES:Rescheduling_interrupts
>> 11949 ± 11% -49.8% 6001 ± 29%
>> interrupts.CPU12.RES:Rescheduling_interrupts
>> 13711 ± 8% -19.4% 11052 ± 24%
>> interrupts.CPU13.RES:Rescheduling_interrupts
>> 13361 ± 6% -38.8% 8170 ± 25%
>> interrupts.CPU14.RES:Rescheduling_interrupts
>> 7628 ± 12% -29.2% 5401 ± 7%
>> interrupts.CPU18.RES:Rescheduling_interrupts
>> 7909 ± 25% -30.4% 5501 ± 37%
>> interrupts.CPU19.RES:Rescheduling_interrupts
>> 1482 ± 39% -100.0% 0.00
>> interrupts.CPU2.NMI:Non-maskable_interrupts
>> 1482 ± 39% -100.0% 0.00
>> interrupts.CPU2.PMI:Performance_monitoring_interrupts
>> 2116 +23.2% 2606 ± 10%
>> interrupts.CPU20.CAL:Function_call_interrupts
>> 194.75 ±173% +380.1% 935.00 ± 30%
>> interrupts.CPU20.NMI:Non-maskable_interrupts
>> 194.75 ±173% +380.1% 935.00 ± 30%
>> interrupts.CPU20.PMI:Performance_monitoring_interrupts
>> 2096 ± 4% +18.0% 2474 ± 9%
>> interrupts.CPU21.CAL:Function_call_interrupts
>> 11313 ± 20% -56.4% 4935 ± 23%
>> interrupts.CPU21.RES:Rescheduling_interrupts
>> 2111 ± 3% +20.1% 2534 ± 11%
>> interrupts.CPU22.CAL:Function_call_interrupts
>> 2109 ± 4% +22.6% 2585 ± 10%
>> interrupts.CPU23.CAL:Function_call_interrupts
>> 10305 ± 16% -40.7% 6115 ± 17%
>> interrupts.CPU23.RES:Rescheduling_interrupts
>> 2128 ± 2% +17.8% 2507 ± 10%
>> interrupts.CPU24.CAL:Function_call_interrupts
>> 12271 ± 20% -39.0% 7488 ± 29%
>> interrupts.CPU24.RES:Rescheduling_interrupts
>> 2123 +19.7% 2541 ± 7%
>> interrupts.CPU25.CAL:Function_call_interrupts
>> 9780 ± 21% -32.9% 6563 ± 25%
>> interrupts.CPU25.RES:Rescheduling_interrupts
>> 980.75 ± 89% -88.9% 109.00 ±141%
>> interrupts.CPU26.NMI:Non-maskable_interrupts
>> 980.75 ± 89% -88.9% 109.00 ±141%
>> interrupts.CPU26.PMI:Performance_monitoring_interrupts
>> 11163 ± 28% -49.8% 5605 ± 13%
>> interrupts.CPU27.RES:Rescheduling_interrupts
>> 11071 ± 12% -56.3% 4835 ± 26%
>> interrupts.CPU29.RES:Rescheduling_interrupts
>> 728.50 ± 66% -100.0% 0.00
>> interrupts.CPU3.NMI:Non-maskable_interrupts
>> 728.50 ± 66% -100.0% 0.00
>> interrupts.CPU3.PMI:Performance_monitoring_interrupts
>> 10599 ± 10% -38.7% 6501 ± 16%
>> interrupts.CPU31.RES:Rescheduling_interrupts
>> 2213 ± 4% +14.2% 2527 ± 7%
>> interrupts.CPU32.CAL:Function_call_interrupts
>> 8862 ± 16% -39.6% 5354 ± 28%
>> interrupts.CPU32.RES:Rescheduling_interrupts
>> 2156 ± 6% +20.5% 2599 ± 9%
>> interrupts.CPU33.CAL:Function_call_interrupts
>> 2169 ± 5% +19.9% 2601 ± 9%
>> interrupts.CPU34.CAL:Function_call_interrupts
>> 10483 ± 18% -48.8% 5371 ± 33%
>> interrupts.CPU34.RES:Rescheduling_interrupts
>> 2049 +24.4% 2549 ± 8%
>> interrupts.CPU35.CAL:Function_call_interrupts
>> 10929 ± 15% -49.0% 5578 ± 14%
>> interrupts.CPU35.RES:Rescheduling_interrupts
>> 1993 ± 4% +28.5% 2561 ± 12%
>> interrupts.CPU36.CAL:Function_call_interrupts
>> 161.75 ±161% +717.9% 1323 ± 43%
>> interrupts.CPU36.NMI:Non-maskable_interrupts
>> 161.75 ±161% +717.9% 1323 ± 43%
>> interrupts.CPU36.PMI:Performance_monitoring_interrupts
>> 1987 ± 4% +30.5% 2594 ± 13%
>> interrupts.CPU37.CAL:Function_call_interrupts
>> 1863 ± 10% +35.7% 2529 ± 14%
>> interrupts.CPU38.CAL:Function_call_interrupts
>> 1984 ± 6% +26.5% 2509 ± 12%
>> interrupts.CPU41.CAL:Function_call_interrupts
>> 12830 ± 30% -26.4% 9445 ± 9%
>> interrupts.CPU43.RES:Rescheduling_interrupts
>> 2067 ± 2% +27.4% 2632 ± 9%
>> interrupts.CPU44.CAL:Function_call_interrupts
>> 2066 ± 3% +27.2% 2629 ± 9%
>> interrupts.CPU45.CAL:Function_call_interrupts
>> 2158 ± 3% +19.6% 2582 ± 9%
>> interrupts.CPU46.CAL:Function_call_interrupts
>> 2036 ± 6% +30.3% 2652 ± 10%
>> interrupts.CPU47.CAL:Function_call_interrupts
>> 150.50 ± 43% -28.0% 108.33
>> interrupts.CPU49.84:PCI-MSI.1572913-edge.eth0-TxRx-49
>> 11823 ± 12% -36.9% 7460 ± 18%
>> interrupts.CPU49.RES:Rescheduling_interrupts
>> 1139 ± 58% -75.5% 278.67 ±141%
>> interrupts.CPU5.NMI:Non-maskable_interrupts
>> 1139 ± 58% -75.5% 278.67 ±141%
>> interrupts.CPU5.PMI:Performance_monitoring_interrupts
>> 11748 ± 22% -40.0% 7048 ± 27%
>> interrupts.CPU5.RES:Rescheduling_interrupts
>> 2102 ± 5% +19.6% 2515 ± 7%
>> interrupts.CPU52.CAL:Function_call_interrupts
>> 2115 ± 6% +19.5% 2527 ± 7%
>> interrupts.CPU53.CAL:Function_call_interrupts
>> 11318 ± 17% -20.4% 9004 ± 26%
>> interrupts.CPU53.RES:Rescheduling_interrupts
>> 2177 ± 5% +17.4% 2556 ± 9%
>> interrupts.CPU54.CAL:Function_call_interrupts
>> 10968 ± 23% -62.3% 4134 ± 21%
>> interrupts.CPU54.RES:Rescheduling_interrupts
>> 2161 ± 5% +20.2% 2598 ± 9%
>> interrupts.CPU55.CAL:Function_call_interrupts
>> 9334 ± 19% -55.4% 4158 ± 34%
>> interrupts.CPU55.RES:Rescheduling_interrupts
>> 1443 ± 22% -100.0% 0.00
>> interrupts.CPU56.NMI:Non-maskable_interrupts
>> 1443 ± 22% -100.0% 0.00
>> interrupts.CPU56.PMI:Performance_monitoring_interrupts
>> 11377 ± 31% -56.9% 4907 ± 43%
>> interrupts.CPU56.RES:Rescheduling_interrupts
>> 601.00 ± 99% -79.6% 122.67 ±141%
>> interrupts.CPU57.NMI:Non-maskable_interrupts
>> 601.00 ± 99% -79.6% 122.67 ±141%
>> interrupts.CPU57.PMI:Performance_monitoring_interrupts
>> 8295 ± 31% -47.7% 4340 ± 24%
>> interrupts.CPU57.RES:Rescheduling_interrupts
>> 9182 ± 37% -59.7% 3701 ± 46%
>> interrupts.CPU58.RES:Rescheduling_interrupts
>> 249.50 ± 76% -50.4% 123.67 ± 2%
>> interrupts.CPU6.41:PCI-MSI.1572870-edge.eth0-TxRx-6
>> 12473 ± 27% -44.4% 6940 ± 13%
>> interrupts.CPU6.RES:Rescheduling_interrupts
>> 7886 ± 12% -42.2% 4555 ± 31%
>> interrupts.CPU60.RES:Rescheduling_interrupts
>> 971.50 ± 47% -86.8% 128.33 ±141%
>> interrupts.CPU61.NMI:Non-maskable_interrupts
>> 971.50 ± 47% -86.8% 128.33 ±141%
>> interrupts.CPU61.PMI:Performance_monitoring_interrupts
>> 9253 ± 26% -56.4% 4033 ± 16%
>> interrupts.CPU61.RES:Rescheduling_interrupts
>> 2103 ± 5% +19.1% 2505 ± 11%
>> interrupts.CPU63.CAL:Function_call_interrupts
>> 2059 ± 2% +20.6% 2483 ± 10%
>> interrupts.CPU64.CAL:Function_call_interrupts
>> 8545 ± 17% -41.2% 5025 ± 8%
>> interrupts.CPU65.RES:Rescheduling_interrupts
>> 7378 ± 23% -51.0% 3614 ± 30%
>> interrupts.CPU68.RES:Rescheduling_interrupts
>> 8573 ± 28% -50.1% 4277 ± 6%
>> interrupts.CPU69.RES:Rescheduling_interrupts
>> 154.50 ± 13% -10.9% 137.67 ± 10%
>> interrupts.CPU7.42:PCI-MSI.1572871-edge.eth0-TxRx-7
>> 9910 ± 28% -51.2% 4839 ± 40%
>> interrupts.CPU70.RES:Rescheduling_interrupts
>> 8836 ± 26% -52.7% 4180 ± 6%
>> interrupts.CPU71.RES:Rescheduling_interrupts
>> 911.50 ± 37% -93.2% 61.67 ±141%
>> interrupts.CPU8.NMI:Non-maskable_interrupts
>> 911.50 ± 37% -93.2% 61.67 ±141%
>> interrupts.CPU8.PMI:Performance_monitoring_interrupts
>> 12326 ± 15% -32.3% 8350 ± 10%
>> interrupts.CPU8.RES:Rescheduling_interrupts
>> 1392 ± 58% -100.0% 0.00
>> interrupts.CPU9.NMI:Non-maskable_interrupts
>> 1392 ± 58% -100.0% 0.00
>> interrupts.CPU9.PMI:Performance_monitoring_interrupts
>> 60185 ± 19% -30.5% 41822 ± 11%
>> interrupts.NMI:Non-maskable_interrupts
>> 60185 ± 19% -30.5% 41822 ± 11%
>> interrupts.PMI:Performance_monitoring_interrupts
>> 749419 -31.9% 510225 ± 3%
>> interrupts.RES:Rescheduling_interrupts
>> 15.05 ± 6% -4.1 10.97 ± 20%
>> perf-profile.calltrace.cycles-pp.normal_work_helper.process_one_work.worker_thread.kthread.ret_from_fork
>>
>> 12.66 ± 5% -4.0 8.68 ± 20%
>> perf-profile.calltrace.cycles-pp.btrfs_finish_ordered_io.normal_work_helper.process_one_work.worker_thread.kthread
>>
>> 5.99 ± 8% -1.6 4.37 ± 6%
>> perf-profile.calltrace.cycles-pp.io_submit
>> 5.83 ± 8% -1.6 4.25 ± 6%
>> perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.io_submit
>> 5.82 ± 8% -1.6 4.24 ± 6%
>> perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.io_submit
>>
>> 5.81 ± 8% -1.6 4.23 ± 6%
>> perf-profile.calltrace.cycles-pp.__x64_sys_io_submit.do_syscall_64.entry_SYSCALL_64_after_hwframe.io_submit
>>
>> 5.76 ± 8% -1.6 4.19 ± 6%
>> perf-profile.calltrace.cycles-pp.io_submit_one.__x64_sys_io_submit.do_syscall_64.entry_SYSCALL_64_after_hwframe.io_submit
>>
>> 5.65 ± 6% -1.6 4.08 ± 20%
>> perf-profile.calltrace.cycles-pp.btrfs_mark_extent_written.btrfs_finish_ordered_io.normal_work_helper.process_one_work.worker_thread
>>
>> 4.52 ± 3% -1.5 2.99 ± 19%
>> perf-profile.calltrace.cycles-pp.add_pending_csums.btrfs_finish_ordered_io.normal_work_helper.process_one_work.worker_thread
>>
>> 6.90 ± 8% -1.5 5.38 ± 10%
>> perf-profile.calltrace.cycles-pp.extent_writepages.do_writepages.__writeback_single_inode.writeback_sb_inodes.wb_writeback
>>
>> 6.90 ± 8% -1.5 5.38 ± 10%
>> perf-profile.calltrace.cycles-pp.extent_write_cache_pages.extent_writepages.do_writepages.__writeback_single_inode.writeback_sb_inodes
>>
>> 5.58 ± 8% -1.5 4.07 ± 6%
>> perf-profile.calltrace.cycles-pp.aio_write.io_submit_one.__x64_sys_io_submit.do_syscall_64.entry_SYSCALL_64_after_hwframe
>>
>> 4.50 ± 3% -1.5 2.99 ± 19%
>> perf-profile.calltrace.cycles-pp.btrfs_csum_file_blocks.add_pending_csums.btrfs_finish_ordered_io.normal_work_helper.process_one_work
>>
>> 5.44 ± 8% -1.5 3.96 ± 7%
>> perf-profile.calltrace.cycles-pp.btrfs_file_write_iter.aio_write.io_submit_one.__x64_sys_io_submit.do_syscall_64
>>
>> 6.63 ± 8% -1.5 5.17 ± 10%
>> perf-profile.calltrace.cycles-pp.__extent_writepage.extent_write_cache_pages.extent_writepages.do_writepages.__writeback_single_inode
>>
>> 5.34 ± 9% -1.4 3.90 ± 6%
>> perf-profile.calltrace.cycles-pp.btrfs_buffered_write.btrfs_file_write_iter.aio_write.io_submit_one.__x64_sys_io_submit
>>
>> 5.55 ± 8% -1.2 4.32 ± 10%
>> perf-profile.calltrace.cycles-pp.writepage_delalloc.__extent_writepage.extent_write_cache_pages.extent_writepages.do_writepages
>>
>> 4.98 ± 8% -1.1 3.86 ± 10%
>> perf-profile.calltrace.cycles-pp.run_delalloc_nocow.btrfs_run_delalloc_range.writepage_delalloc.__extent_writepage.extent_write_cache_pages
>>
>> 5.00 ± 8% -1.1 3.88 ± 10%
>> perf-profile.calltrace.cycles-pp.btrfs_run_delalloc_range.writepage_delalloc.__extent_writepage.extent_write_cache_pages.extent_writepages
>>
>> 2.80 ± 4% -1.0 1.78 ± 22%
>> perf-profile.calltrace.cycles-pp.btrfs_search_slot.btrfs_mark_extent_written.btrfs_finish_ordered_io.normal_work_helper.process_one_work
>>
>> 1.45 ± 3% -0.7 0.79 ± 18%
>> perf-profile.calltrace.cycles-pp.__btrfs_cow_block.btrfs_cow_block.btrfs_search_slot.btrfs_mark_extent_written.btrfs_finish_ordered_io
>>
>> 1.45 ± 3% -0.7 0.79 ± 18%
>> perf-profile.calltrace.cycles-pp.btrfs_cow_block.btrfs_search_slot.btrfs_mark_extent_written.btrfs_finish_ordered_io.normal_work_helper
>>
>> 2.32 ± 3% -0.6 1.72 ± 18%
>> perf-profile.calltrace.cycles-pp.btrfs_insert_empty_items.btrfs_csum_file_blocks.add_pending_csums.btrfs_finish_ordered_io.normal_work_helper
>>
>> 0.91 ± 8% -0.5 0.42 ± 73%
>> perf-profile.calltrace.cycles-pp.btrfs_lookup_csum.btrfs_csum_file_blocks.add_pending_csums.btrfs_finish_ordered_io.normal_work_helper
>>
>> 0.88 ± 8% -0.5 0.41 ± 74%
>> perf-profile.calltrace.cycles-pp.btrfs_search_slot.btrfs_lookup_csum.btrfs_csum_file_blocks.add_pending_csums.btrfs_finish_ordered_io
>>
>> 0.83 ± 5% -0.4 0.41 ± 71%
>> perf-profile.calltrace.cycles-pp.split_leaf.btrfs_search_slot.btrfs_insert_empty_items.btrfs_csum_file_blocks.add_pending_csums
>>
>> 1.90 ± 20% -0.4 1.48 ± 29%
>> perf-profile.calltrace.cycles-pp.btrfs_run_delayed_refs.flush_space.btrfs_async_reclaim_metadata_space.process_one_work.worker_thread
>>
>> 1.89 ± 20% -0.4 1.48 ± 29%
>> perf-profile.calltrace.cycles-pp.__btrfs_run_delayed_refs.btrfs_run_delayed_refs.flush_space.btrfs_async_reclaim_metadata_space.process_one_work
>>
>> 0.82 ± 4% -0.4 0.42 ± 71%
>> perf-profile.calltrace.cycles-pp.run_one_async_done.normal_work_helper.process_one_work.worker_thread.kthread
>>
>> 0.81 ± 4% -0.4 0.41 ± 71%
>> perf-profile.calltrace.cycles-pp.btrfs_map_bio.run_one_async_done.normal_work_helper.process_one_work.worker_thread
>>
>> 0.74 ± 6% -0.4 0.36 ± 70%
>> perf-profile.calltrace.cycles-pp.push_leaf_right.split_leaf.btrfs_search_slot.btrfs_insert_empty_items.btrfs_csum_file_blocks
>>
>> 1.19 ± 3% -0.4 0.83 ± 16%
>> perf-profile.calltrace.cycles-pp.btrfs_search_slot.btrfs_insert_empty_items.btrfs_csum_file_blocks.add_pending_csums.btrfs_finish_ordered_io
>>
>> 1.00 ± 6% -0.4 0.65 ± 7%
>> perf-profile.calltrace.cycles-pp.lock_and_cleanup_extent_if_need.btrfs_buffered_write.btrfs_file_write_iter.aio_write.io_submit_one
>>
>> 1.27 ± 5% -0.4 0.92 ± 7%
>> perf-profile.calltrace.cycles-pp.btrfs_dirty_pages.btrfs_buffered_write.btrfs_file_write_iter.aio_write.io_submit_one
>>
>> 1.25 ± 6% -0.3 0.90 ± 7%
>> perf-profile.calltrace.cycles-pp.create_io_em.run_delalloc_nocow.btrfs_run_delalloc_range.writepage_delalloc.__extent_writepage
>>
>> 0.93 ± 8% -0.3 0.59 ± 7%
>> perf-profile.calltrace.cycles-pp.__set_extent_bit.lock_extent_bits.lock_and_cleanup_extent_if_need.btrfs_buffered_write.btrfs_file_write_iter
>>
>> 0.94 ± 7% -0.3 0.60 ± 6%
>> perf-profile.calltrace.cycles-pp.lock_extent_bits.lock_and_cleanup_extent_if_need.btrfs_buffered_write.btrfs_file_write_iter.aio_write
>>
>> 0.70 ± 8% -0.3 0.37 ± 70%
>> perf-profile.calltrace.cycles-pp.__lookup_extent_mapping.btrfs_get_extent.btrfs_dirty_pages.btrfs_buffered_write.btrfs_file_write_iter
>>
>> 0.79 ± 6% -0.3 0.47 ± 71%
>> perf-profile.calltrace.cycles-pp.setup_items_for_insert.btrfs_duplicate_item.btrfs_mark_extent_written.btrfs_finish_ordered_io.normal_work_helper
>>
>> 0.71 ± 21% -0.3 0.43 ± 74%
>> perf-profile.calltrace.cycles-pp.__btrfs_free_extent.__btrfs_run_delayed_refs.btrfs_run_delayed_refs.flush_space.btrfs_async_reclaim_metadata_space
>>
>> 1.15 ± 11% -0.3 0.88 ± 9%
>> perf-profile.calltrace.cycles-pp.btrfs_lookup_csums_range.csum_exist_in_range.run_delalloc_nocow.btrfs_run_delalloc_range.writepage_delalloc
>>
>> 1.15 ± 11% -0.3 0.88 ± 8%
>> perf-profile.calltrace.cycles-pp.csum_exist_in_range.run_delalloc_nocow.btrfs_run_delalloc_range.writepage_delalloc.__extent_writepage
>>
>> 1.43 ± 13% -0.3 1.17 ± 5%
>> perf-profile.calltrace.cycles-pp.btrfs_delalloc_reserve_metadata.btrfs_buffered_write.btrfs_file_write_iter.aio_write.io_submit_one
>>
>> 1.06 ± 5% -0.3 0.81 ± 7%
>> perf-profile.calltrace.cycles-pp.btrfs_drop_extent_cache.create_io_em.run_delalloc_nocow.btrfs_run_delalloc_range.writepage_delalloc
>>
>> 1.30 ± 15% -0.2 1.06 ± 4%
>> perf-profile.calltrace.cycles-pp.reserve_metadata_bytes.btrfs_delalloc_reserve_metadata.btrfs_buffered_write.btrfs_file_write_iter.aio_write
>>
>> 1.03 ± 13% -0.2 0.79 ± 9%
>> perf-profile.calltrace.cycles-pp.btrfs_search_slot.btrfs_lookup_csums_range.csum_exist_in_range.run_delalloc_nocow.btrfs_run_delalloc_range
>>
>> 1.20 ± 4% -0.2 0.96 ± 15%
>> perf-profile.calltrace.cycles-pp.__schedule.schedule_idle.do_idle.cpu_startup_entry.start_secondary
>>
>> 1.24 ± 3% -0.2 1.01 ± 15%
>> perf-profile.calltrace.cycles-pp.schedule_idle.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64
>>
>> 1.05 ± 8% -0.2 0.82 ± 12%
>> perf-profile.calltrace.cycles-pp.__extent_writepage_io.__extent_writepage.extent_write_cache_pages.extent_writepages.do_writepages
>>
>> 0.88 ± 13% -0.2 0.71 ± 2%
>> perf-profile.calltrace.cycles-pp.wait_reserve_ticket.reserve_metadata_bytes.btrfs_delalloc_reserve_metadata.btrfs_buffered_write.btrfs_file_write_iter
>>
>> 1.01 ± 9% -0.2 0.84 ± 9%
>> perf-profile.calltrace.cycles-pp.btrfs_search_slot.btrfs_lookup_file_extent.run_delalloc_nocow.btrfs_run_delalloc_range.writepage_delalloc
>>
>> 1.01 ± 10% -0.2 0.85 ± 9%
>> perf-profile.calltrace.cycles-pp.btrfs_lookup_file_extent.run_delalloc_nocow.btrfs_run_delalloc_range.writepage_delalloc.__extent_writepage
>>
>> 0.72 ± 7% -0.2 0.56 ± 6%
>> perf-profile.calltrace.cycles-pp.btrfs_get_extent.btrfs_dirty_pages.btrfs_buffered_write.btrfs_file_write_iter.aio_write
>>
>> 0.75 ± 8% -0.1 0.60 ± 10%
>> perf-profile.calltrace.cycles-pp.submit_extent_page.__extent_writepage_io.__extent_writepage.extent_write_cache_pages.extent_writepages
>>
>> 0.92 ± 15% +0.2 1.14 ± 3%
>> perf-profile.calltrace.cycles-pp.update_process_times.tick_sched_handle.tick_sched_timer.__hrtimer_run_queues.hrtimer_interrupt
>>
>> 1.01 ± 15% +0.2 1.25 ± 4%
>> perf-profile.calltrace.cycles-pp.tick_sched_handle.tick_sched_timer.__hrtimer_run_queues.hrtimer_interrupt.smp_apic_timer_interrupt
>>
>> 1.15 ± 15% +0.3 1.44 ± 6%
>> perf-profile.calltrace.cycles-pp.tick_sched_timer.__hrtimer_run_queues.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt
>>
>> 0.27 ±100% +0.4 0.63 ± 4%
>> perf-profile.calltrace.cycles-pp.rebalance_domains.__softirqentry_text_start.irq_exit.smp_apic_timer_interrupt.apic_timer_interrupt
>>
>> 1.74 ± 9% +0.4 2.11 ± 2%
>> perf-profile.calltrace.cycles-pp.__hrtimer_run_queues.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt.cpuidle_enter_state
>>
>> 2.63 ± 10% +0.6 3.26
>> perf-profile.calltrace.cycles-pp.hrtimer_interrupt.smp_apic_timer_interrupt.apic_timer_interrupt.cpuidle_enter_state.do_idle
>>
>> 0.00 +0.8 0.75 ± 18%
>> perf-profile.calltrace.cycles-pp.map_private_extent_buffer.btrfs_get_token_64.check_leaf.btree_csum_one_bio.btree_submit_bio_hook
>>
>> 2.37 ± 19% +0.8 3.19 ± 5%
>> perf-profile.calltrace.cycles-pp.btrfs_async_reclaim_metadata_space.process_one_work.worker_thread.kthread.ret_from_fork
>>
>> 2.33 ± 19% +0.8 3.17 ± 5%
>> perf-profile.calltrace.cycles-pp.flush_space.btrfs_async_reclaim_metadata_space.process_one_work.worker_thread.kthread
>>
>> 0.00 +0.9 0.90 ± 18%
>> perf-profile.calltrace.cycles-pp.map_private_extent_buffer.btrfs_get_token_32.check_leaf.btree_csum_one_bio.btree_submit_bio_hook
>>
>> 4.71 ± 11% +1.0 5.74
>> perf-profile.calltrace.cycles-pp.smp_apic_timer_interrupt.apic_timer_interrupt.cpuidle_enter_state.do_idle.cpu_startup_entry
>>
>> 5.04 ± 10% +1.2 6.19
>> perf-profile.calltrace.cycles-pp.apic_timer_interrupt.cpuidle_enter_state.do_idle.cpu_startup_entry.start_secondary
>>
>> 0.00 +1.3 1.30 ± 19%
>> perf-profile.calltrace.cycles-pp.submit_extent_page.write_one_eb.btree_write_cache_pages.do_writepages.__filemap_fdatawrite_range
>>
>> 0.00 +1.4 1.36 ± 19%
>> perf-profile.calltrace.cycles-pp.write_one_eb.btree_write_cache_pages.do_writepages.__filemap_fdatawrite_range.btrfs_write_marked_extents
>>
>> 0.29 ±101% +1.4 1.67 ± 18%
>> perf-profile.calltrace.cycles-pp.btrfs_commit_transaction.flush_space.btrfs_async_reclaim_metadata_space.process_one_work.worker_thread
>>
>> 0.00 +1.4 1.39 ± 19%
>> perf-profile.calltrace.cycles-pp.do_writepages.__filemap_fdatawrite_range.btrfs_write_marked_extents.btrfs_write_and_wait_transaction.btrfs_commit_transaction
>>
>> 0.00 +1.4 1.39 ± 19%
>> perf-profile.calltrace.cycles-pp.btree_write_cache_pages.do_writepages.__filemap_fdatawrite_range.btrfs_write_marked_extents.btrfs_write_and_wait_transaction
>>
>> 0.00 +1.4 1.39 ± 19%
>> perf-profile.calltrace.cycles-pp.__filemap_fdatawrite_range.btrfs_write_marked_extents.btrfs_write_and_wait_transaction.btrfs_commit_transaction.flush_space
>>
>> 0.00 +1.4 1.39 ± 19%
>> perf-profile.calltrace.cycles-pp.btrfs_write_and_wait_transaction.btrfs_commit_transaction.flush_space.btrfs_async_reclaim_metadata_space.process_one_work
>>
>> 0.00 +1.4 1.39 ± 19%
>> perf-profile.calltrace.cycles-pp.btrfs_write_marked_extents.btrfs_write_and_wait_transaction.btrfs_commit_transaction.flush_space.btrfs_async_reclaim_metadata_space
>>
>> 0.00 +1.5 1.52 ± 18%
>> perf-profile.calltrace.cycles-pp.btrfs_get_token_64.check_leaf.btree_csum_one_bio.btree_submit_bio_hook.submit_one_bio
>>
>> 0.00 +2.2 2.20 ± 14%
>> perf-profile.calltrace.cycles-pp.btrfs_get_token_32.check_leaf.btree_csum_one_bio.btree_submit_bio_hook.submit_one_bio
>>
>> 8.37 ± 7% +3.3 11.65 ± 16%
>> perf-profile.calltrace.cycles-pp.wb_writeback.wb_workfn.process_one_work.worker_thread.kthread
>>
>> 8.37 ± 7% +3.3 11.65 ± 16%
>> perf-profile.calltrace.cycles-pp.wb_workfn.process_one_work.worker_thread.kthread.ret_from_fork
>>
>> 7.97 ± 7% +3.5 11.44 ± 15%
>> perf-profile.calltrace.cycles-pp.do_writepages.__writeback_single_inode.writeback_sb_inodes.wb_writeback.wb_workfn
>>
>> 7.97 ± 7% +3.5 11.44 ± 15%
>> perf-profile.calltrace.cycles-pp.writeback_sb_inodes.wb_writeback.wb_workfn.process_one_work.worker_thread
>>
>> 7.97 ± 7% +3.5 11.44 ± 15%
>> perf-profile.calltrace.cycles-pp.__writeback_single_inode.writeback_sb_inodes.wb_writeback.wb_workfn.process_one_work
>>
>> 49.45 ± 2% +4.3 53.79 ± 4%
>> perf-profile.calltrace.cycles-pp.intel_idle.cpuidle_enter_state.do_idle.cpu_startup_entry.start_secondary
>>
>> 61.98 ± 2% +4.4 66.38 ± 3%
>> perf-profile.calltrace.cycles-pp.secondary_startup_64
>> 1.07 ± 18% +5.0 6.06 ± 20%
>> perf-profile.calltrace.cycles-pp.btree_write_cache_pages.do_writepages.__writeback_single_inode.writeback_sb_inodes.wb_writeback
>>
>> 0.93 ± 18% +5.0 5.95 ± 20%
>> perf-profile.calltrace.cycles-pp.write_one_eb.btree_write_cache_pages.do_writepages.__writeback_single_inode.writeback_sb_inodes
>>
>> 61.26 ± 2% +5.1 66.36 ± 3%
>> perf-profile.calltrace.cycles-pp.cpu_startup_entry.start_secondary.secondary_startup_64
>>
>> 61.27 ± 2% +5.1 66.37 ± 3%
>> perf-profile.calltrace.cycles-pp.start_secondary.secondary_startup_64
>> 61.21 ± 2% +5.1 66.32 ± 3%
>> perf-profile.calltrace.cycles-pp.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64
>>
>> 0.33 ±100% +5.3 5.68 ± 20%
>> perf-profile.calltrace.cycles-pp.submit_extent_page.write_one_eb.btree_write_cache_pages.do_writepages.__writeback_single_inode
>>
>> 55.45 ± 2% +5.4 60.88 ± 3%
>> perf-profile.calltrace.cycles-pp.cpuidle_enter_state.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64
>>
>> 0.00 +6.4 6.39 ± 13%
>> perf-profile.calltrace.cycles-pp.check_leaf.btree_csum_one_bio.btree_submit_bio_hook.submit_one_bio.submit_extent_page
>>
>> 0.00 +6.5 6.50 ± 13%
>> perf-profile.calltrace.cycles-pp.btree_csum_one_bio.btree_submit_bio_hook.submit_one_bio.submit_extent_page.write_one_eb
>>
>> 0.29 ±100% +6.6 6.92 ± 13%
>> perf-profile.calltrace.cycles-pp.submit_one_bio.submit_extent_page.write_one_eb.btree_write_cache_pages.do_writepages
>>
>> 0.29 ±100% +6.6 6.92 ± 13%
>> perf-profile.calltrace.cycles-pp.btree_submit_bio_hook.submit_one_bio.submit_extent_page.write_one_eb.btree_write_cache_pages
>>
>> 15.05 ± 6% -4.1 10.97 ± 20%
>> perf-profile.children.cycles-pp.normal_work_helper
>> 12.66 ± 5% -4.0 8.68 ± 20%
>> perf-profile.children.cycles-pp.btrfs_finish_ordered_io
>> 7.84 ± 5% -2.4 5.39 ± 10%
>> perf-profile.children.cycles-pp.btrfs_search_slot
>> 7.30 ± 7% -1.7 5.59 ± 11%
>> perf-profile.children.cycles-pp.extent_writepages
>> 7.30 ± 7% -1.7 5.59 ± 11%
>> perf-profile.children.cycles-pp.extent_write_cache_pages
>> 7.03 ± 7% -1.6 5.38 ± 12%
>> perf-profile.children.cycles-pp.__extent_writepage
>> 6.19 ± 8% -1.6 4.56 ± 7%
>> perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
>> 6.17 ± 8% -1.6 4.55 ± 7%
>> perf-profile.children.cycles-pp.do_syscall_64
>> 6.01 ± 8% -1.6 4.39 ± 7%
>> perf-profile.children.cycles-pp.io_submit
>> 5.81 ± 8% -1.6 4.23 ± 6%
>> perf-profile.children.cycles-pp.__x64_sys_io_submit
>> 5.76 ± 8% -1.6 4.19 ± 6%
>> perf-profile.children.cycles-pp.io_submit_one
>> 5.66 ± 5% -1.6 4.09 ± 20%
>> perf-profile.children.cycles-pp.btrfs_mark_extent_written
>> 4.52 ± 3% -1.5 2.99 ± 19%
>> perf-profile.children.cycles-pp.add_pending_csums
>> 5.59 ± 8% -1.5 4.07 ± 6%
>> perf-profile.children.cycles-pp.aio_write
>> 4.51 ± 3% -1.5 2.99 ± 19%
>> perf-profile.children.cycles-pp.btrfs_csum_file_blocks
>> 5.44 ± 8% -1.5 3.96 ± 7%
>> perf-profile.children.cycles-pp.btrfs_file_write_iter
>> 5.34 ± 9% -1.4 3.90 ± 6%
>> perf-profile.children.cycles-pp.btrfs_buffered_write
>> 5.88 ± 7% -1.4 4.47 ± 11%
>> perf-profile.children.cycles-pp.writepage_delalloc
>> 5.30 ± 8% -1.3 4.01 ± 11%
>> perf-profile.children.cycles-pp.btrfs_run_delalloc_range
>> 5.28 ± 8% -1.3 3.99 ± 11%
>> perf-profile.children.cycles-pp.run_delalloc_nocow
>> 2.55 ± 2% -0.9 1.67 ± 16%
>> perf-profile.children.cycles-pp.btrfs_cow_block
>> 2.54 ± 2% -0.9 1.66 ± 16%
>> perf-profile.children.cycles-pp.__btrfs_cow_block
>> 2.15 ± 13% -0.8 1.31 ± 8%
>> perf-profile.children.cycles-pp.__lookup_extent_mapping
>> 1.87 ± 12% -0.8 1.04 ± 12%
>> perf-profile.children.cycles-pp.__etree_search
>> 0.94 ± 51% -0.7 0.22 ± 34%
>> perf-profile.children.cycles-pp.printk
>> 0.94 ± 51% -0.7 0.22 ± 34%
>> perf-profile.children.cycles-pp.vprintk_emit
>> 2.60 ± 2% -0.7 1.92 ± 14%
>> perf-profile.children.cycles-pp.btrfs_insert_empty_items
>> 3.00 ± 5% -0.7 2.33 ± 6%
>> perf-profile.children.cycles-pp._raw_spin_lock
>> 1.89 ± 2% -0.7 1.23 ± 7%
>> perf-profile.children.cycles-pp.__set_extent_bit
>> 2.78 ± 4% -0.6 2.14 ± 14%
>> perf-profile.children.cycles-pp.__schedule
>> 1.57 ± 2% -0.5 1.02 ± 9%
>> perf-profile.children.cycles-pp.lock_extent_bits
>> 1.19 ± 14% -0.5 0.70 ± 11%
>> perf-profile.children.cycles-pp.__clear_extent_bit
>> 1.51 ± 7% -0.5 1.04 ± 9%
>> perf-profile.children.cycles-pp.read_block_for_search
>> 2.08 ± 5% -0.5 1.62 ± 18%
>> perf-profile.children.cycles-pp.setup_items_for_insert
>> 2.08 ± 17% -0.4 1.67 ± 24%
>> perf-profile.children.cycles-pp.btrfs_run_delayed_refs
>> 2.08 ± 17% -0.4 1.67 ± 24%
>> perf-profile.children.cycles-pp.__btrfs_run_delayed_refs
>> 1.60 ± 6% -0.4 1.20 ± 12%
>> perf-profile.children.cycles-pp.schedule
>> 1.95 ± 11% -0.4 1.58 ± 12%
>> perf-profile.children.cycles-pp.try_to_wake_up
>> 1.31 ± 6% -0.4 0.94 ± 9%
>> perf-profile.children.cycles-pp.create_io_em
>> 0.99 ± 4% -0.4 0.63 ± 13%
>> perf-profile.children.cycles-pp.alloc_tree_block_no_bg_flush
>> 1.00 ± 6% -0.4 0.65 ± 7%
>> perf-profile.children.cycles-pp.lock_and_cleanup_extent_if_need
>> 1.27 ± 9% -0.4 0.92 ± 11%
>> perf-profile.children.cycles-pp.__wake_up_common_lock
>> 0.98 ± 3% -0.4 0.63 ± 13%
>> perf-profile.children.cycles-pp.btrfs_alloc_tree_block
>> 1.27 ± 5% -0.4 0.92 ± 7%
>> perf-profile.children.cycles-pp.btrfs_dirty_pages
>> 1.34 ± 7% -0.3 0.99 ± 10%
>> perf-profile.children.cycles-pp.btrfs_map_bio
>> 1.11 ± 9% -0.3 0.77 ± 11%
>> perf-profile.children.cycles-pp.generic_bin_search
>> 1.16 ± 6% -0.3 0.82 ± 9%
>> perf-profile.children.cycles-pp.find_extent_buffer
>> 0.91 ± 7% -0.3 0.57 ± 21%
>> perf-profile.children.cycles-pp.btrfs_lookup_csum
>> 1.21 ± 11% -0.3 0.90 ± 10%
>> perf-profile.children.cycles-pp.btrfs_lookup_csums_range
>> 1.21 ± 11% -0.3 0.91 ± 9%
>> perf-profile.children.cycles-pp.csum_exist_in_range
>> 1.10 ± 10% -0.3 0.80 ± 9%
>> perf-profile.children.cycles-pp.__wake_up_common
>> 0.37 ± 70% -0.3 0.07 ± 18%
>> perf-profile.children.cycles-pp.test_range_bit
>> 1.61 ± 4% -0.3 1.32 ± 15%
>> perf-profile.children.cycles-pp.push_leaf_right
>> 0.60 ± 4% -0.3 0.31 ± 25%
>> perf-profile.children.cycles-pp.btrfs_extend_item
>> 1.02 ± 9% -0.3 0.73 ± 10%
>> perf-profile.children.cycles-pp.autoremove_wake_function
>> 1.12 ± 4% -0.3 0.84 ± 9%
>> perf-profile.children.cycles-pp.btrfs_drop_extent_cache
>> 0.82 ± 6% -0.3 0.55 ± 4%
>> perf-profile.children.cycles-pp.btrfs_release_path
>> 0.85 ± 8% -0.3 0.59 ± 17%
>> perf-profile.children.cycles-pp.copy_extent_buffer_full
>> 0.99 ± 4% -0.3 0.73 ± 13%
>> perf-profile.children.cycles-pp.btrfs_set_token_32
>> 1.44 ± 13% -0.3 1.18 ± 5%
>> perf-profile.children.cycles-pp.btrfs_delalloc_reserve_metadata
>> 0.84 ± 8% -0.3 0.59 ± 17%
>> perf-profile.children.cycles-pp.copy_page
>> 0.87 ± 11% -0.3 0.62 ± 11%
>> perf-profile.children.cycles-pp.pagecache_get_page
>> 0.84 ± 7% -0.2 0.60 ± 11%
>> perf-profile.children.cycles-pp.kmem_cache_alloc
>> 1.12 ± 7% -0.2 0.88 ± 17%
>> perf-profile.children.cycles-pp.__extent_writepage_io
>> 1.30 ± 15% -0.2 1.06 ± 5%
>> perf-profile.children.cycles-pp.reserve_metadata_bytes
>> 0.82 ± 4% -0.2 0.58 ± 13%
>> perf-profile.children.cycles-pp.run_one_async_done
>> 1.25 ± 3% -0.2 1.01 ± 15%
>> perf-profile.children.cycles-pp.schedule_idle
>> 0.34 ± 53% -0.2 0.10 ± 28%
>> perf-profile.children.cycles-pp.delay_tsc
>> 0.70 ± 13% -0.2 0.47 ± 11%
>> perf-profile.children.cycles-pp.prepare_pages
>> 0.50 ± 22% -0.2 0.28 ± 13%
>> perf-profile.children.cycles-pp.clear_state_bit
>> 0.84 ± 5% -0.2 0.63 ± 6%
>> perf-profile.children.cycles-pp.btrfs_get_extent
>> 0.54 ± 11% -0.2 0.34 ± 4%
>> perf-profile.children.cycles-pp.btrfs_free_path
>> 1.16 ± 11% -0.2 0.96 ± 19%
>> perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
>> 0.53 ± 9% -0.2 0.33 ± 18%
>> perf-profile.children.cycles-pp.unpin_extent_cache
>> 1.07 ± 10% -0.2 0.88 ± 10%
>> perf-profile.children.cycles-pp.btrfs_lookup_file_extent
>> 0.50 ± 4% -0.2 0.31 ± 15%
>> perf-profile.children.cycles-pp.clear_extent_bit
>> 0.45 ± 13% -0.2 0.26 ± 11%
>> perf-profile.children.cycles-pp.kmem_cache_free
>> 0.40 ± 14% -0.2 0.21 ± 50%
>> perf-profile.children.cycles-pp.__writeback_inodes_wb
>> 0.64 ± 7% -0.2 0.45 ± 10%
>> perf-profile.children.cycles-pp.dequeue_task_fair
>> 0.50 ± 8% -0.2 0.33 ± 23%
>> perf-profile.children.cycles-pp.btrfs_add_delayed_tree_ref
>> 0.88 ± 13% -0.2 0.71 ± 2%
>> perf-profile.children.cycles-pp.wait_reserve_ticket
>> 0.52 ± 9% -0.2 0.35 ± 7%
>> perf-profile.children.cycles-pp.__radix_tree_lookup
>> 0.52 ± 8% -0.2 0.36 ± 8%
>> perf-profile.children.cycles-pp.xas_load
>> 0.78 ± 19% -0.2 0.62 ± 23%
>> perf-profile.children.cycles-pp.__btrfs_free_extent
>> 0.56 ± 17% -0.1 0.42 ± 15%
>> perf-profile.children.cycles-pp.btrfs_del_items
>> 0.51 ± 5% -0.1 0.36 ± 9%
>> perf-profile.children.cycles-pp.dequeue_entity
>> 0.39 ± 7% -0.1 0.24 ± 6%
>> perf-profile.children.cycles-pp.__set_page_dirty_nobuffers
>> 0.82 ± 14% -0.1 0.68 ± 18%
>> perf-profile.children.cycles-pp.ttwu_do_activate
>> 0.55 ± 8% -0.1 0.41 ± 8%
>> perf-profile.children.cycles-pp.btrfs_submit_bio_hook
>> 0.53 ± 5% -0.1 0.40 ± 13%
>> perf-profile.children.cycles-pp.update_load_avg
>> 0.40 ± 8% -0.1 0.27 ± 27%
>> perf-profile.children.cycles-pp.add_delayed_ref_head
>> 0.35 ± 13% -0.1 0.22 ± 3%
>> perf-profile.children.cycles-pp.set_extent_bit
>> 0.52 ± 9% -0.1 0.39 ± 7%
>> perf-profile.children.cycles-pp.btrfs_wq_submit_bio
>> 0.35 ± 3% -0.1 0.23 ± 32%
>> perf-profile.children.cycles-pp.queued_write_lock_slowpath
>> 0.33 ± 6% -0.1 0.21 ± 15%
>> perf-profile.children.cycles-pp.__slab_alloc
>> 0.63 ± 19% -0.1 0.51 ± 13%
>> perf-profile.children.cycles-pp.sched_ttwu_pending
>> 0.31 ± 11% -0.1 0.19 ± 28%
>> perf-profile.children.cycles-pp.btrfs_update_inode
>> 0.31 ± 11% -0.1 0.19 ± 28%
>> perf-profile.children.cycles-pp.btrfs_update_inode_fallback
>> 0.57 ± 5% -0.1 0.46 ± 10%
>> perf-profile.children.cycles-pp.find_lock_delalloc_range
>> 0.45 ± 5% -0.1 0.34 ± 9%
>> perf-profile.children.cycles-pp.btrfs_cross_ref_exist
>> 0.29 ± 3% -0.1 0.18 ± 7%
>> perf-profile.children.cycles-pp.free_extent_buffer
>> 0.38 ± 3% -0.1 0.26 ± 8%
>> perf-profile.children.cycles-pp.btrfs_mark_buffer_dirty
>> 0.46 ± 5% -0.1 0.35 ± 13%
>> perf-profile.children.cycles-pp.find_delalloc_range
>> 0.41 ± 9% -0.1 0.30 ± 2%
>> perf-profile.children.cycles-pp.btrfs_copy_from_user
>> 0.40 ± 9% -0.1 0.29 ± 2%
>> perf-profile.children.cycles-pp.iov_iter_copy_from_user_atomic
>> 0.38 ± 10% -0.1 0.27
>> perf-profile.children.cycles-pp.find_get_entry
>> 0.31 ± 12% -0.1 0.20 ± 31%
>> perf-profile.children.cycles-pp.btrfs_remove_ordered_extent
>> 0.30 ± 6% -0.1 0.20 ± 14%
>> perf-profile.children.cycles-pp.___slab_alloc
>> 0.26 ± 8% -0.1 0.16 ± 7%
>> perf-profile.children.cycles-pp.merge_state
>> 0.38 ± 7% -0.1 0.28 ± 3%
>> perf-profile.children.cycles-pp.copyin
>> 0.26 ± 17% -0.1 0.15 ± 26%
>> perf-profile.children.cycles-pp.btrfs_delayed_update_inode
>> 0.25 ± 4% -0.1 0.15 ± 5%
>> perf-profile.children.cycles-pp.insert_state
>> 0.40 ± 13% -0.1 0.30 ± 13%
>> perf-profile.children.cycles-pp.extent_clear_unlock_delalloc
>> 0.36 ± 9% -0.1 0.26 ± 3%
>> perf-profile.children.cycles-pp.alloc_extent_state
>> 0.38 ± 7% -0.1 0.29 ± 3%
>> perf-profile.children.cycles-pp.copy_user_enhanced_fast_string
>> 0.39 ± 3% -0.1 0.29 ± 14%
>> perf-profile.children.cycles-pp.alloc_extent_buffer
>> 0.31 ± 4% -0.1 0.22 ± 11%
>> perf-profile.children.cycles-pp.set_extent_buffer_dirty
>> 0.26 ± 11% -0.1 0.17 ± 23%
>> perf-profile.children.cycles-pp.unlock_up
>> 0.32 ± 3% -0.1 0.24 ± 13%
>> perf-profile.children.cycles-pp.__btrfs_map_block
>> 0.23 ± 13% -0.1 0.15 ± 28%
>> perf-profile.children.cycles-pp.btrfs_add_delayed_data_ref
>> 0.25 ± 12% -0.1 0.17 ± 2%
>> perf-profile.children.cycles-pp.__slab_free
>> 0.47 ± 6% -0.1 0.39 ± 15%
>> perf-profile.children.cycles-pp.__push_leaf_right
>> 0.26 ± 9% -0.1 0.18 ± 19%
>> perf-profile.children.cycles-pp.__test_set_page_writeback
>> 0.32 ± 11% -0.1 0.24 ± 27%
>> perf-profile.children.cycles-pp.btrfs_add_ordered_extent
>> 0.15 ± 8% -0.1 0.07 ± 6%
>> perf-profile.children.cycles-pp.__xa_set_mark
>> 0.23 ± 7% -0.1 0.15 ± 3%
>> perf-profile.children.cycles-pp.release_extent_buffer
>> 0.18 ± 8% -0.1 0.11 ± 26%
>> perf-profile.children.cycles-pp.alloc_extent_map
>> 0.32 ± 10% -0.1 0.24 ± 27%
>> perf-profile.children.cycles-pp.__btrfs_add_ordered_extent
>> 0.32 ± 17% -0.1 0.24 ± 10%
>> perf-profile.children.cycles-pp.btrfs_tree_read_lock_atomic
>> 0.20 ± 13% -0.1 0.13 ± 27%
>> perf-profile.children.cycles-pp.btrfs_inc_extent_ref
>> 0.14 ± 21% -0.1 0.06 ± 19%
>> perf-profile.children.cycles-pp.find_ref_head
>> 0.13 ± 32% -0.1 0.06 ± 19%
>> perf-profile.children.cycles-pp.rb_erase_cached
>> 0.21 ± 7% -0.1 0.14 ± 15%
>> perf-profile.children.cycles-pp.btrfs_submit_bio_start
>> 0.53 ± 12% -0.1 0.46 ± 16%
>> perf-profile.children.cycles-pp.btrfs_tree_read_lock
>> 0.21 ± 7% -0.1 0.14 ± 15%
>> perf-profile.children.cycles-pp.btrfs_csum_one_bio
>> 0.17 ± 16% -0.1 0.10 ± 8%
>> perf-profile.children.cycles-pp.rb_erase
>> 0.21 ± 7% -0.1 0.14 ± 16%
>> perf-profile.children.cycles-pp.run_one_async_start
>> 0.22 ± 3% -0.1 0.15 ± 22%
>> perf-profile.children.cycles-pp.btrfs_try_tree_write_lock
>> 0.21 ± 9% -0.1 0.15 ± 21%
>> perf-profile.children.cycles-pp.btrfs_leaf_free_space
>> 0.15 ± 23% -0.1 0.09 ± 35%
>> perf-profile.children.cycles-pp.free_extent_map
>> 0.20 ± 9% -0.1 0.14 ± 20%
>> perf-profile.children.cycles-pp.leaf_space_used
>> 0.19 ± 8% -0.1 0.13 ± 13%
>> perf-profile.children.cycles-pp.check_delayed_ref
>> 0.17 ± 13% -0.1 0.12 ± 31%
>> perf-profile.children.cycles-pp.get_page_from_freelist
>> 0.13 ± 8% -0.1 0.08 ± 26%
>> perf-profile.children.cycles-pp.__update_load_avg_se
>> 0.17 ± 2% -0.1 0.12 ± 18%
>> perf-profile.children.cycles-pp.btrfs_set_range_writeback
>> 0.15 ± 8% -0.1 0.09 ± 20%
>> perf-profile.children.cycles-pp.xas_set_mark
>> 0.18 ± 6% -0.1 0.13 ± 16%
>> perf-profile.children.cycles-pp.___might_sleep
>> 0.20 ± 11% -0.1 0.15 ± 35%
>> perf-profile.children.cycles-pp.__alloc_pages_nodemask
>> 0.10 ± 9% -0.1 0.04 ± 71%
>> perf-profile.children.cycles-pp.btrfs_tree_unlock
>> 0.14 ± 11% -0.1 0.09 ± 28%
>> perf-profile.children.cycles-pp.btrfs_reserve_extent
>> 0.10 ± 33% -0.1 0.05 ± 72%
>> perf-profile.children.cycles-pp.__btrfs_release_delayed_node
>> 0.22 ± 9% -0.0 0.17 ± 25%
>> perf-profile.children.cycles-pp.mark_extent_buffer_accessed
>> 0.09 ± 13% -0.0 0.04 ± 71%
>> perf-profile.children.cycles-pp.btrfs_tree_read_unlock_blocking
>> 0.18 ± 8% -0.0 0.14 ± 24%
>> perf-profile.children.cycles-pp.__list_del_entry_valid
>> 0.09 ± 13% -0.0 0.04 ± 73%
>> perf-profile.children.cycles-pp.verify_parent_transid
>> 0.11 ± 19% -0.0 0.07 ± 11%
>> perf-profile.children.cycles-pp.entry_SYSCALL_64
>> 0.22 ± 5% -0.0 0.18 ± 12%
>> perf-profile.children.cycles-pp.check_committed_ref
>> 0.11 ± 19% -0.0 0.07 ± 23%
>> perf-profile.children.cycles-pp.select_idle_sibling
>> 0.14 ± 11% -0.0 0.09 ± 5%
>> perf-profile.children.cycles-pp.do_io_getevents
>> 0.15 ± 7% -0.0 0.11 ± 4%
>> perf-profile.children.cycles-pp.__x64_sys_io_getevents
>> 0.08 ± 10% -0.0 0.04 ± 71%
>> perf-profile.children.cycles-pp.btrfs_release_extent_buffer_pages
>> 0.17 ± 18% -0.0 0.13 ± 9%
>> perf-profile.children.cycles-pp.clear_page_dirty_for_io
>> 0.14 ± 5% -0.0 0.10 �� 25%
>> perf-profile.children.cycles-pp.block_group_cache_tree_search
>> 0.18 ± 4% -0.0 0.14 ± 11%
>> perf-profile.children.cycles-pp.btrfs_get_chunk_map
>> 0.11 ± 13% -0.0 0.08 ± 12%
>> perf-profile.children.cycles-pp.btrfs_buffer_uptodate
>> 0.15 ± 15% -0.0 0.11 ± 19%
>> perf-profile.children.cycles-pp.xas_find_marked
>> 0.12 ± 15% -0.0 0.08 ± 20%
>> perf-profile.children.cycles-pp.btrfs_unlock_up_safe
>> 0.12 ± 14% -0.0 0.08 ± 14%
>> perf-profile.children.cycles-pp.btrfs_set_path_blocking
>> 0.11 ± 11% -0.0 0.07 ± 28%
>> perf-profile.children.cycles-pp.find_free_extent
>> 0.24 ± 5% -0.0 0.20 ± 6%
>> perf-profile.children.cycles-pp.btrfs_root_node
>> 0.07 ± 6% -0.0 0.03 ± 70%
>> perf-profile.children.cycles-pp.extent_mergeable
>> 0.13 ± 12% -0.0 0.10 ± 9%
>> perf-profile.children.cycles-pp.__switch_to
>> 0.10 ± 18% -0.0 0.07 ± 7%
>> perf-profile.children.cycles-pp.rb_insert_color_cached
>> 0.07 ± 14% -0.0 0.04 ± 71%
>> perf-profile.children.cycles-pp.rb_prev
>> 0.11 ± 11% -0.0 0.08 ± 12%
>> perf-profile.children.cycles-pp.get_io_u
>> 0.10 ± 14% -0.0 0.07 ± 23%
>> perf-profile.children.cycles-pp.available_idle_cpu
>> 0.17 ± 10% -0.0 0.13 ± 3%
>> perf-profile.children.cycles-pp._raw_write_lock
>> 0.10 ± 11% -0.0 0.06 ± 7%
>> perf-profile.children.cycles-pp.__might_sleep
>> 0.17 ± 7% -0.0 0.14 ± 12%
>> perf-profile.children.cycles-pp._raw_read_lock
>> 0.17 ± 10% -0.0 0.14 ± 12%
>> perf-profile.children.cycles-pp.can_overcommit
>> 0.10 ± 11% -0.0 0.07
>> perf-profile.children.cycles-pp.__list_add_valid
>> 0.09 ± 7% -0.0 0.06 ± 7%
>> perf-profile.children.cycles-pp.aio_read_events
>> 0.11 ± 10% -0.0 0.08 ± 10%
>> perf-profile.children.cycles-pp.___perf_sw_event
>> 0.11 ± 9% -0.0 0.09 ± 18%
>> perf-profile.children.cycles-pp.get_alloc_profile
>> 0.11 ± 12% -0.0 0.08 ± 14%
>> perf-profile.children.cycles-pp.pick_next_task_idle
>> 0.10 ± 13% -0.0 0.07 ± 6%
>> perf-profile.children.cycles-pp.read_events
>> 0.08 ± 6% -0.0 0.06 ± 13%
>> perf-profile.children.cycles-pp.replace_extent_mapping
>> 0.10 ± 5% -0.0 0.08 ± 10%
>> perf-profile.children.cycles-pp.menu_reflect
>> 0.07 ± 17% +0.0 0.09 ± 5%
>> perf-profile.children.cycles-pp.run_posix_cpu_timers
>> 0.05 ± 58% +0.0 0.08 ± 6%
>> perf-profile.children.cycles-pp.rcu_irq_enter
>> 0.19 ± 11% +0.1 0.26 ± 17%
>> perf-profile.children.cycles-pp.native_irq_return_iret
>> 0.20 ± 14% +0.1 0.27 ± 8%
>> perf-profile.children.cycles-pp.btrfs_comp_cpu_keys
>> 0.38 ± 9% +0.1 0.46
>> perf-profile.children.cycles-pp.load_balance
>> 0.30 ± 8% +0.1 0.38 ± 15%
>> perf-profile.children.cycles-pp.irq_enter
>> 0.21 ± 24% +0.1 0.30 ± 9%
>> perf-profile.children.cycles-pp.rcu_sched_clock_irq
>> 0.22 ± 3% +0.1 0.32 ± 9%
>> perf-profile.children.cycles-pp.lapic_next_deadline
>> 0.52 ± 12% +0.1 0.63 ± 3%
>> perf-profile.children.cycles-pp.rebalance_domains
>> 1.90 ± 10% +0.3 2.23 ± 2%
>> perf-profile.children.cycles-pp.__hrtimer_run_queues
>> 0.23 ± 12% +0.4 0.67 ± 15%
>> perf-profile.children.cycles-pp.read_extent_buffer
>> 2.88 ± 11% +0.5 3.41
>> perf-profile.children.cycles-pp.hrtimer_interrupt
>> 0.09 ± 12% +0.7 0.83 ± 15%
>> perf-profile.children.cycles-pp.btrfs_get_token_8
>> 2.37 ± 19% +0.8 3.19 ± 5%
>> perf-profile.children.cycles-pp.btrfs_async_reclaim_metadata_space
>> 2.33 ± 19% +0.8 3.17 ± 5%
>> perf-profile.children.cycles-pp.flush_space
>> 0.14 ± 34% +1.3 1.39 ± 19%
>> perf-profile.children.cycles-pp.btrfs_write_and_wait_transaction
>> 0.14 ± 34% +1.3 1.39 ± 19%
>> perf-profile.children.cycles-pp.btrfs_write_marked_extents
>> 0.14 ± 34% +1.3 1.39 ± 19%
>> perf-profile.children.cycles-pp.__filemap_fdatawrite_range
>> 0.42 ± 43% +1.3 1.67 ± 18%
>> perf-profile.children.cycles-pp.btrfs_commit_transaction
>> 0.25 ± 5% +1.9 2.17 ± 10%
>> perf-profile.children.cycles-pp.btrfs_get_token_64
>> 1.71 ± 5% +2.1 3.79 ± 5%
>> perf-profile.children.cycles-pp.btrfs_get_token_32
>> 0.43 ± 8% +2.4 2.84 ± 10%
>> perf-profile.children.cycles-pp.map_private_extent_buffer
>> 8.37 ± 7% +3.3 11.65 ± 16%
>> perf-profile.children.cycles-pp.wb_writeback
>> 8.37 ± 7% +3.3 11.65 ± 16%
>> perf-profile.children.cycles-pp.writeback_sb_inodes
>> 8.37 ± 7% +3.3 11.65 ± 16%
>> perf-profile.children.cycles-pp.__writeback_single_inode
>> 8.37 ± 7% +3.3 11.65 ± 16%
>> perf-profile.children.cycles-pp.wb_workfn
>> 50.06 ± 2% +3.8 53.82 ± 4%
>> perf-profile.children.cycles-pp.intel_idle
>> 61.99 ± 2% +4.4 66.39 ± 3%
>> perf-profile.children.cycles-pp.do_idle
>> 61.98 ± 2% +4.4 66.38 ± 3%
>> perf-profile.children.cycles-pp.secondary_startup_64
>> 61.98 ± 2% +4.4 66.38 ± 3%
>> perf-profile.children.cycles-pp.cpu_startup_entry
>> 8.51 ± 7% +4.5 13.04 ± 12%
>> perf-profile.children.cycles-pp.do_writepages
>> 56.43 ± 3% +4.9 61.30 ± 3%
>> perf-profile.children.cycles-pp.cpuidle_enter_state
>> 61.27 ± 2% +5.1 66.37 ± 3%
>> perf-profile.children.cycles-pp.start_secondary
>> 1.43 ± 7% +6.2 7.64 ± 13%
>> perf-profile.children.cycles-pp.submit_extent_page
>> 1.20 ± 17% +6.2 7.45 ± 13%
>> perf-profile.children.cycles-pp.btree_write_cache_pages
>> 1.05 ± 17% +6.3 7.31 ± 13%
>> perf-profile.children.cycles-pp.write_one_eb
>> 1.11 ± 7% +6.3 7.37 ± 13%
>> perf-profile.children.cycles-pp.submit_one_bio
>> 0.55 ± 16% +6.4 6.95 ± 13%
>> perf-profile.children.cycles-pp.btree_submit_bio_hook
>> 0.00 +6.5 6.48 ± 13%
>> perf-profile.children.cycles-pp.check_leaf
>> 0.00 +6.5 6.53 ± 13%
>> perf-profile.children.cycles-pp.btree_csum_one_bio
>> 2.12 ± 11% -0.8 1.29 ± 7%
>> perf-profile.self.cycles-pp.__lookup_extent_mapping
>> 1.83 ± 12% -0.8 1.03 ± 13%
>> perf-profile.self.cycles-pp.__etree_search
>> 2.06 ± 5% -0.5 1.59 ± 5%
>> perf-profile.self.cycles-pp._raw_spin_lock
>> 0.81 ± 9% -0.3 0.52 ± 10%
>> perf-profile.self.cycles-pp.generic_bin_search
>> 0.84 ± 7% -0.3 0.58 ± 17%
>> perf-profile.self.cycles-pp.copy_page
>> 0.33 ± 54% -0.2 0.10 ± 28%
>> perf-profile.self.cycles-pp.delay_tsc
>> 0.89 ± 9% -0.2 0.69 ± 14%
>> perf-profile.self.cycles-pp.btrfs_set_token_32
>> 0.81 ± 4% -0.2 0.63 ± 14%
>> perf-profile.self.cycles-pp.__schedule
>> 0.51 ± 9% -0.2 0.35 ± 6%
>> perf-profile.self.cycles-pp.__radix_tree_lookup
>> 0.45 ± 8% -0.1 0.32 ± 10%
>> perf-profile.self.cycles-pp.xas_load
>> 0.43 ± 4% -0.1 0.31 ± 6%
>> perf-profile.self.cycles-pp.find_extent_buffer
>> 0.77 ± 5% -0.1 0.66 ± 11%
>> perf-profile.self.cycles-pp._raw_spin_lock_irqsave
>> 0.31 ± 10% -0.1 0.20 ± 28%
>> perf-profile.self.cycles-pp.add_delayed_ref_head
>> 0.39 ± 16% -0.1 0.29 ± 16%
>> perf-profile.self.cycles-pp.try_to_wake_up
>> 0.31 ± 4% -0.1 0.20 ± 26%
>> perf-profile.self.cycles-pp.queued_write_lock_slowpath
>> 0.38 ± 7% -0.1 0.29 ± 3%
>> perf-profile.self.cycles-pp.copy_user_enhanced_fast_string
>> 0.20 ± 17% -0.1 0.11 ± 14%
>> perf-profile.self.cycles-pp.kmem_cache_free
>> 0.25 ± 11% -0.1 0.17 ± 2%
>> perf-profile.self.cycles-pp.__slab_free
>> 0.16 ± 9% -0.1 0.08 ± 5%
>> perf-profile.self.cycles-pp.free_extent_buffer
>> 0.28 ± 17% -0.1 0.20 ± 11%
>> perf-profile.self.cycles-pp.btrfs_search_slot
>> 0.31 ± 4% -0.1 0.24 ± 20%
>> perf-profile.self.cycles-pp.kmem_cache_alloc
>> 0.14 ± 21% -0.1 0.06 ± 19%
>> perf-profile.self.cycles-pp.find_ref_head
>> 0.16 ± 10% -0.1 0.09 ± 5%
>> perf-profile.self.cycles-pp.insert_state
>> 0.12 ± 8% -0.1 0.06 ± 72%
>> perf-profile.self.cycles-pp.__update_load_avg_se
>> 0.16 ± 15% -0.1 0.10 ± 8%
>> perf-profile.self.cycles-pp.rb_erase
>> 0.10 ± 9% -0.1 0.04 ± 71%
>> perf-profile.self.cycles-pp.btrfs_tree_unlock
>> 0.15 ± 13% -0.1 0.10 ± 12%
>> perf-profile.self.cycles-pp.___slab_alloc
>> 0.28 ± 13% -0.1 0.22 ± 5%
>> perf-profile.self.cycles-pp.queued_read_lock_slowpath
>> 0.15 ± 21% -0.1 0.09 ± 35%
>> perf-profile.self.cycles-pp.free_extent_map
>> 0.18 ± 6% -0.1 0.12 ± 11%
>> perf-profile.self.cycles-pp.update_load_avg
>> 0.10 ± 11% -0.1 0.04 ± 70%
>> perf-profile.self.cycles-pp.btrfs_extend_item
>> 0.15 ± 23% -0.1 0.09 ± 9%
>> perf-profile.self.cycles-pp.add_extent_mapping
>> 0.15 ± 8% -0.1 0.09 ± 20%
>> perf-profile.self.cycles-pp.xas_set_mark
>> 0.18 ± 6% -0.1 0.13 ± 16%
>> perf-profile.self.cycles-pp.___might_sleep
>> 0.18 ± 6% -0.0 0.13 ± 22%
>> perf-profile.self.cycles-pp.__list_del_entry_valid
>> 0.18 ± 4% -0.0 0.14 ± 22%
>> perf-profile.self.cycles-pp.pick_next_task_fair
>> 0.09 ± 13% -0.0 0.04 ± 73%
>> perf-profile.self.cycles-pp.verify_parent_transid
>> 0.09 ± 12% -0.0 0.04 ± 71%
>> perf-profile.self.cycles-pp.btrfs_tree_read_unlock_blocking
>> 0.16 ± 13% -0.0 0.12 ± 24%
>> perf-profile.self.cycles-pp.mark_page_accessed
>> 0.12 ± 14% -0.0 0.08 ± 20%
>> perf-profile.self.cycles-pp.dequeue_task_fair
>> 0.10 ± 19% -0.0 0.07 ± 18%
>> perf-profile.self.cycles-pp.entry_SYSCALL_64
>> 0.08 ± 14% -0.0 0.04 ± 73%
>> perf-profile.self.cycles-pp.unlock_up
>> 0.15 ± 15% -0.0 0.11 ± 19%
>> perf-profile.self.cycles-pp.xas_find_marked
>> 0.24 ± 6% -0.0 0.20 ± 8%
>> perf-profile.self.cycles-pp.btrfs_root_node
>> 0.17 ± 6% -0.0 0.13 ± 10%
>> perf-profile.self.cycles-pp._raw_read_lock
>> 0.10 ± 13% -0.0 0.06 ± 14%
>> perf-profile.self.cycles-pp.btrfs_csum_one_bio
>> 0.16 ± 7% -0.0 0.13 ± 9%
>> perf-profile.self.cycles-pp.dequeue_entity
>> 0.07 -0.0 0.04 ± 71%
>> perf-profile.self.cycles-pp.io_u_queued_complete
>> 0.08 -0.0 0.05 ± 70%
>> perf-profile.self.cycles-pp.mutex_lock
>> 0.11 ± 11% -0.0 0.08 ± 12%
>> perf-profile.self.cycles-pp.get_io_u
>> 0.16 ± 9% -0.0 0.13
>> perf-profile.self.cycles-pp._raw_write_lock
>> 0.07 ± 17% -0.0 0.04 ± 73%
>> perf-profile.self.cycles-pp.btrfs_tree_read_lock
>> 0.12 ± 8% -0.0 0.09 ± 13%
>> perf-profile.self.cycles-pp.__switch_to
>> 0.10 ± 11% -0.0 0.06 ± 14%
>> perf-profile.self.cycles-pp.__clear_extent_bit
>> 0.07 ± 12% -0.0 0.04 ± 71%
>> perf-profile.self.cycles-pp.rb_prev
>> 0.10 ± 15% -0.0 0.07 ± 23%
>> perf-profile.self.cycles-pp.find_get_pages_range_tag
>> 0.10 ± 12% -0.0 0.07 ± 23%
>> perf-profile.self.cycles-pp.available_idle_cpu
>> 0.10 ± 11% -0.0 0.07 ± 7%
>> perf-profile.self.cycles-pp.__list_add_valid
>> 0.08 ± 13% -0.0 0.06 ± 8%
>> perf-profile.self.cycles-pp.__might_sleep
>> 0.12 ± 17% -0.0 0.09 ± 15%
>> perf-profile.self.cycles-pp.release_extent_buffer
>> 0.09 ± 17% -0.0 0.07 ± 14%
>> perf-profile.self.cycles-pp.___perf_sw_event
>> 0.08 ± 5% -0.0 0.06 ± 13%
>> perf-profile.self.cycles-pp.__push_leaf_right
>> 0.11 ± 7% -0.0 0.09 ± 9%
>> perf-profile.self.cycles-pp.set_extent_buffer_dirty
>> 0.11 ± 4% -0.0 0.08 ± 11%
>> perf-profile.self.cycles-pp.__set_extent_bit
>> 0.09 ± 7% +0.0 0.11 ± 4%
>> perf-profile.self.cycles-pp.hrtimer_interrupt
>> 0.07 ± 17% +0.0 0.09 ± 5%
>> perf-profile.self.cycles-pp.run_posix_cpu_timers
>> 0.07 ± 7% +0.0 0.09 ± 5%
>> perf-profile.self.cycles-pp.load_balance
>> 0.01 ±173% +0.1 0.07 ± 17%
>> perf-profile.self.cycles-pp.lapic_next_deadline
>> 0.00 +0.1 0.06 ± 23%
>> perf-profile.self.cycles-pp.find_next_and_bit
>> 0.19 ± 11% +0.1 0.26 ± 17%
>> perf-profile.self.cycles-pp.native_irq_return_iret
>> 0.19 ± 24% +0.1 0.28 ± 7%
>> perf-profile.self.cycles-pp.rcu_sched_clock_irq
>> 0.50 ± 8% +0.2 0.69 ± 17%
>> perf-profile.self.cycles-pp.cpuidle_enter_state
>> 0.07 ± 11% +0.4 0.46 ± 17%
>> perf-profile.self.cycles-pp.btrfs_get_token_8
>> 0.22 ± 13% +0.4 0.66 ± 16%
>> perf-profile.self.cycles-pp.read_extent_buffer
>> 0.00 +0.6 0.65 ± 14%
>> perf-profile.self.cycles-pp.check_leaf
>> 0.15 ± 11% +1.0 1.13 ± 11%
>> perf-profile.self.cycles-pp.btrfs_get_token_64
>> 1.48 ± 7% +1.0 2.51 ± 5%
>> perf-profile.self.cycles-pp.btrfs_get_token_32
>> 0.41 ± 8% +2.2 2.61 ± 9%
>> perf-profile.self.cycles-pp.map_private_extent_buffer
>> 49.99 ± 2% +3.7 53.74 ± 4%
>> perf-profile.self.cycles-pp.intel_idle
>>
>>
>>
>> fio.write_bw_MBps
>>
>> 300
>> +-+-------------------------------------------------------------------+
>>
>> | |
>> 250 +-++.+ +. .+.. .+..+..+.+.. .+..+..
>> .+ |
>> | : : +. +..+ + +..+ +.
>> + |
>> | : : : : :
>> : |
>> 200 +-+ : : : : : : O
>> O |
>> O O O: O :O O O O O O O O O O: O:O O: O: O
>> O O O O
>> 150 +-+ : : : : :
>> : |
>> | : : : : :
>> : |
>> 100 +-+ : : : : :
>> : |
>> | : : : : :
>> : |
>> | : : : : :
>> : |
>> 50 +-+ :: ::
>> :: |
>> | : :
>> : |
>> 0
>> +-+---------------------------------------------O-------------O-------+
>>
>>
>> fio.write_iops
>>
>> 70000
>> +-+-----------------------------------------------------------------+
>> |..+.+ +..+..+.+.. .+.+..+.+..+ +..
>> +..+.+..+..+ |
>> 60000 +-+ : : +. : : +
>> : |
>> | : : : : :
>> : |
>> 50000 +-+ : : : : :
>> : |
>> O O O: :O O O O O O O O O O: O:O O:O : O O O
>> O O O O
>> 40000 +-+ : O: : : :
>> : |
>> | : : : : :
>> : |
>> 30000 +-+ : : : : :
>> : |
>> | : : : : :
>> : |
>> 20000 +-+ : : : : :
>> : |
>> | :: ::
>> :: |
>> 10000 +-+ : :
>> : |
>> | : :
>> : |
>> 0
>> +-+--------------------------------------------O------------O-------+
>>
>>
>> fio.write_clat_mean_us
>>
>> 30000
>> +-+-----------------------------------------------------------------+
>>
>> | |
>> 25000 O-+O O O O O O O O O O O O O O O O O
>> O O |
>> | O O
>> O O O
>>
>> | |
>> 20000
>> +-+ |
>> |..+.+ +..+..+.+..+..+.+..+.+..+ +..+
>> +..+.+..+..+ |
>> 15000 +-+ : : : : :
>> : |
>> | : : : : :
>> : |
>> 10000 +-+ : : : : :
>> : |
>> | : : : : :
>> : |
>> | : : : : :
>> : |
>> 5000 +-+ : : : :
>> :: |
>> | : :
>> : |
>> 0
>> +-+--------------------------------------------O------------O-------+
>>
>>
>> fio.write_clat_stddev
>>
>> 160000
>> +-+----------------------------------------------------------------+
>>
>> | |
>> 140000 O-+O O O O O O O O O O O O O
>> O |
>> 120000 +-+ O
>> O |
>>
>> | |
>> 100000 +-+ O O O O
>> O O O O
>>
>> | |
>> 80000
>> +-+ |
>> |
>> .+.. |
>> 60000 +-++.+ +..+.+. +.+..+.+..+..+ +.+
>> +..+..+.+..+ |
>> 40000 +-+ : : : : :
>> : |
>> | : : : : :
>> : |
>> 20000 +-+ : : : : :
>> : |
>> | :: ::
>> :: |
>> 0
>> +-+-------------------------------------------O------------O-------+
>>
>>
>> fio.write_slat_mean_us
>>
>> 900
>> +-+-------------------------------------------------------------------+
>> O O O O O O O O O O O O O O O O
>> O O |
>> 800 +-+O O O O
>> O O O
>> 700
>> +-+ |
>>
>> | |
>> 600 +-++.+ +.+..+..+..+.+..+..+.+..+ +..+
>> +..+..+..+.+ |
>> 500 +-+ : : : : :
>> : |
>> | : : : : :
>> : |
>> 400 +-+ : : : : :
>> : |
>> 300 +-+ : : : : :
>> : |
>> | : : : : :
>> : |
>> 200 +-+ : : : : :
>> : |
>> 100 +-+ : : ::
>> :: |
>> | : :
>> : |
>> 0
>> +-+---------------------------------------------O-------------O-------+
>>
>>
>> fio.write_slat_stddev
>>
>> 25000
>> +-+-----O---------O-------------------------------------------------+
>> O O O O O O O O O O O O O O
>> O |
>>
>> | |
>> 20000
>> +-+ |
>> | O O O O
>> O O O O
>>
>> | |
>> 15000
>> +-+ |
>>
>> | |
>> 10000 +-++. .+.. .+.. .+..+ .+
>> .+..+ |
>> |. + +..+..+ +..+ + : +. :
>> +..+.+. |
>> | : : : : :
>> : |
>> 5000 +-+ : : : : :
>> : |
>> | : : : : :
>> : |
>> | :: :
>> :: |
>> 0
>> +-+--------------------------------------------O------------O-------+
>>
>>
>> fio.latency_1000ms_
>>
>> 0.4
>> +-+------------------------------------------------------------------+
>>
>> | |
>> 0.35
>> +-+ O |
>> 0.3
>> +-+ |
>> | O
>> O |
>> 0.25 +-+
>> O O |
>> | O
>> O O
>> 0.2 O-+ O O O O O O O O O
>> O |
>> | O
>> O |
>> 0.15 +-+O O O
>> O |
>> 0.1
>> +-+ |
>>
>> | |
>> 0.05
>> +-+ |
>> | .+. .+..+..+.+..+.. .+.
>> .+.+..+.. |
>> 0
>> +-+---------------------------------------------O------------O-------+
>>
>>
>> fio.workload
>>
>> 1.4e+07
>> +-+---------------------------------------------------------------+
>> |..+.+ +..+.+..+.+..+.+..+.+..+ +..
>> +.+..+.+..+ |
>> 1.2e+07 +-+ : : : : +
>> : |
>> | : : : : :
>> : |
>> 1e+07 +-+ : : : : :
>> : |
>> O O O: :O O O O O O O O O O: O:O O:O : O O O
>> O O O O
>> 8e+06 +-+ : O: : : :
>> : |
>> | : : : : :
>> : |
>> 6e+06 +-+ : : : : :
>> : |
>> | : : : : :
>> : |
>> 4e+06 +-+ : : : : :
>> : |
>> | :: ::
>> :: |
>> 2e+06 +-+ : :
>> : |
>> | : :
>> : |
>> 0
>> +-+-------------------------------------------O-----------O-------+
>>
>>
>> fio.time.voluntary_context_switches
>>
>> 1.4e+07
>> +-+---------------------------------------------------------------+
>>
>> | |
>> 1.2e+07 +-++.+ +..+.+..+.+..+.+..+.+..+ +..+
>> +.+..+.+..+ |
>> | : : : : :
>> : |
>> 1e+07 +-+ : : : : :
>> : |
>> | O O: : O O O : : :O : O O O
>> O O O O
>> 8e+06 O-+ : O:O O O O O O O: O:O O:
>> : |
>> | : : : : :
>> : |
>> 6e+06 +-+ : : : : :
>> : |
>> | : : : : :
>> : |
>> 4e+06 +-+ : : : : :
>> : |
>> | : : : :
>> :: |
>> 2e+06 +-+ : :
>> :: |
>> | : :
>> : |
>> 0
>> +-+-------------------------------------------O-----------O-------+
>>
>>
>> fio.time.file_system_outputs
>>
>> 1.2e+08
>> +-+---------------------------------------------------------------+
>>
>> | |
>> 1e+08 +-++.+ +..+.+..+.+..+.+..+.+..+ +..+
>> +.+..+.+..+ |
>> | : : : : :
>> : |
>> | : : : : :
>> : |
>> 8e+07 +-+ : : : : : : O O
>> O O O
>> O O O: O:O O O O O O O O O O: O:O O:O :
>> O O |
>> 6e+07 +-+ : : : : :
>> : |
>> | : : : : :
>> : |
>> 4e+07 +-+ : : : : :
>> : |
>> | : : : : :
>> : |
>> | : : : :
>> :: |
>> 2e+07 +-+ : :
>> :: |
>> | : :
>> : |
>> 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,
>> Rong Chen
>>
>>
>> _______________________________________________
>> LKP mailing list
>> LKP@...ts.01.org
>> https://lists.01.org/mailman/listinfo/lkp
>>
>
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