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Date: Wed, 17 Feb 2021 22:56:30 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Pavel Tatashin <pasha.tatashin@...een.com>
Cc: Jens Axboe <axboe@...nel.dk>,
Tyler Hicks <tyhicks@...ux.microsoft.com>,
Petr Vorel <pvorel@...e.cz>,
LKML <linux-kernel@...r.kernel.org>,
Linux Memory Management List <linux-mm@...ck.org>,
lkp@...ts.01.org, lkp@...el.com, ying.huang@...el.com,
feng.tang@...el.com, zhengjun.xing@...el.com
Subject: [loop] 6cc8e74308: stress-ng.loop.ops_per_sec 139.4% improvement
Greeting,
FYI, we noticed a 139.4% improvement of stress-ng.loop.ops_per_sec due to commit:
commit: 6cc8e7430801fa238bd7d3acae1eb406c6e02fe1 ("loop: scale loop device by introducing per device lock")
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master
in testcase: stress-ng
on test machine: 96 threads Intel(R) Xeon(R) Gold 6252 CPU @ 2.10GHz with 192G memory
with following parameters:
nr_threads: 10%
disk: 1HDD
testtime: 60s
fs: ext4
class: os
test: loop
cpufreq_governor: performance
ucode: 0x5003003
In addition to that, the commit also has significant impact on the following tests:
+------------------+----------------------------------------------------------------------+
| testcase: change | stress-ng: stress-ng.loop.ops_per_sec 140.6% improvement |
| test machine | 96 threads Intel(R) Xeon(R) Gold 6252 CPU @ 2.10GHz with 512G memory |
| test parameters | class=device |
| | cpufreq_governor=performance |
| | disk=1HDD |
| | nr_threads=100% |
| | test=loop |
| | testtime=60s |
| | ucode=0x5003003 |
+------------------+----------------------------------------------------------------------+
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 split-job --compatible job.yaml
bin/lkp run compatible-job.yaml
=========================================================================================
class/compiler/cpufreq_governor/disk/fs/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime/ucode:
os/gcc-9/performance/1HDD/ext4/x86_64-rhel-8.3/10%/debian-10.4-x86_64-20200603.cgz/lkp-csl-2sp5/loop/stress-ng/60s/0x5003003
commit:
767630c63b ("bdev: Do not return EBUSY if bdev discard races with write")
6cc8e74308 ("loop: scale loop device by introducing per device lock")
767630c63bb23acf 6cc8e7430801fa238bd7d3acae1
---------------- ---------------------------
fail:runs %reproduction fail:runs
| | |
0:6 -4% 0:6 perf-profile.children.cycles-pp.error_entry
0:6 -4% 0:6 perf-profile.self.cycles-pp.error_entry
%stddev %change %stddev
\ | \
647.50 ± 5% +138.9% 1547 ± 3% stress-ng.loop.ops
10.74 ± 5% +139.4% 25.72 ± 3% stress-ng.loop.ops_per_sec
2243 ± 6% +75.4% 3934 ± 3% stress-ng.time.involuntary_context_switches
22.00 ± 4% +65.2% 36.33 ± 3% stress-ng.time.percent_of_cpu_this_job_got
14.02 ± 3% +63.2% 22.89 ± 3% stress-ng.time.system_time
20775 ± 5% +125.8% 46901 ± 16% stress-ng.time.voluntary_context_switches
195323 ± 7% +22.5% 239317 ± 10% numa-numastat.node1.numa_hit
1.30 ± 68% -61.2% 0.50 ± 44% perf-sched.sch_delay.avg.ms.worker_thread.kthread.ret_from_fork
7274 ± 2% +28.4% 9340 ± 2% meminfo.Active
4226 ± 3% +44.9% 6126 ± 2% meminfo.Active(file)
3174 ± 3% +60.1% 5082 ± 2% meminfo.Buffers
0.27 ± 10% +0.3 0.56 ± 8% mpstat.cpu.all.iowait%
0.42 ± 3% +0.2 0.60 ± 4% mpstat.cpu.all.sys%
0.04 ± 3% +0.0 0.06 ± 6% mpstat.cpu.all.usr%
1070 ± 3% +40.6% 1504 vmstat.io.bi
3208 ± 3% +60.1% 5137 ± 2% vmstat.memory.buff
5446 ± 2% +50.3% 8184 ± 3% vmstat.system.cs
4417358 ± 3% +39.9% 6181053 ± 23% cpuidle.C1.time
45013 ± 6% +72.1% 77477 ± 53% cpuidle.C1.usage
196417 ± 4% +47.2% 289159 ± 12% cpuidle.POLL.time
29151 ± 5% +43.1% 41711 ± 9% cpuidle.POLL.usage
761.67 +5.5% 803.33 ± 2% proc-vmstat.nr_active_anon
1058 ± 3% +44.8% 1532 ± 2% proc-vmstat.nr_active_file
20307 +1.4% 20591 proc-vmstat.nr_slab_reclaimable
42850 +1.6% 43553 proc-vmstat.nr_slab_unreclaimable
761.67 +5.5% 803.33 ± 2% proc-vmstat.nr_zone_active_anon
1058 ± 3% +44.8% 1532 ± 2% proc-vmstat.nr_zone_active_file
454102 +12.4% 510568 proc-vmstat.numa_hit
365903 +15.3% 421780 proc-vmstat.numa_local
4689 ± 3% +70.6% 7997 ± 3% proc-vmstat.pgactivate
503369 +19.6% 602248 proc-vmstat.pgalloc_normal
370729 +26.0% 467222 proc-vmstat.pgfree
69989 ± 3% +40.1% 98054 proc-vmstat.pgpgin
676.83 ± 6% +17.5% 795.17 ± 2% slabinfo.bdev_cache.active_objs
676.83 ± 6% +17.5% 795.17 ± 2% slabinfo.bdev_cache.num_objs
1503 ± 11% +43.8% 2162 ± 2% slabinfo.buffer_head.active_objs
1509 ± 11% +44.4% 2180 ± 2% slabinfo.buffer_head.num_objs
1960 ± 6% +27.0% 2490 ± 2% slabinfo.dquot.active_objs
1960 ± 6% +27.0% 2490 ± 2% slabinfo.dquot.num_objs
5779 ± 4% +13.1% 6534 ± 3% slabinfo.kmalloc-rcl-64.active_objs
5779 ± 4% +13.1% 6534 ± 3% slabinfo.kmalloc-rcl-64.num_objs
2543 ± 3% +14.1% 2903 ± 3% slabinfo.kmalloc-rcl-96.active_objs
2543 ± 3% +14.1% 2903 ± 3% slabinfo.kmalloc-rcl-96.num_objs
1068 ± 6% +18.6% 1266 slabinfo.request_queue.active_objs
1068 ± 6% +18.6% 1266 slabinfo.request_queue.num_objs
3.011e+08 +9.1% 3.286e+08 perf-stat.i.branch-instructions
5403 ± 2% +51.9% 8206 ± 3% perf-stat.i.context-switches
144.06 ± 2% +14.0% 164.24 ± 2% perf-stat.i.cpu-migrations
1707 ± 12% +22.1% 2085 ± 10% perf-stat.i.cycles-between-cache-misses
3.644e+08 +11.1% 4.048e+08 perf-stat.i.dTLB-loads
1.782e+08 +16.1% 2.068e+08 perf-stat.i.dTLB-stores
1.437e+09 +10.5% 1.588e+09 perf-stat.i.instructions
1.22 ± 8% +23.8% 1.52 ± 8% perf-stat.i.metric.K/sec
9.02 ± 2% +11.5% 10.06 ± 2% perf-stat.i.metric.M/sec
358554 ± 4% +30.1% 466359 ± 5% perf-stat.i.node-load-misses
68252 ± 7% +19.2% 81323 ± 4% perf-stat.i.node-loads
169904 ± 11% +63.7% 278159 ± 6% perf-stat.i.node-store-misses
1690 ± 11% +20.9% 2043 ± 10% perf-stat.overall.cycles-between-cache-misses
2.964e+08 +9.1% 3.233e+08 perf-stat.ps.branch-instructions
5317 ± 2% +51.9% 8076 ± 3% perf-stat.ps.context-switches
141.76 ± 2% +14.0% 161.59 ± 2% perf-stat.ps.cpu-migrations
3.587e+08 +11.1% 3.984e+08 perf-stat.ps.dTLB-loads
1.754e+08 +16.0% 2.035e+08 perf-stat.ps.dTLB-stores
1.415e+09 +10.5% 1.563e+09 perf-stat.ps.instructions
11.19 ± 2% -2.2% 10.94 perf-stat.ps.major-faults
352880 ± 4% +30.1% 458953 ± 5% perf-stat.ps.node-load-misses
67186 ± 7% +19.1% 80032 ± 4% perf-stat.ps.node-loads
167186 ± 11% +63.7% 273686 ± 6% perf-stat.ps.node-store-misses
8.979e+10 +10.7% 9.939e+10 perf-stat.total.instructions
58913 +10.2% 64920 interrupts.CAL:Function_call_interrupts
543.33 ± 31% +70.7% 927.33 ± 7% interrupts.CPU0.CAL:Function_call_interrupts
614.50 ± 5% +11.6% 685.83 ± 5% interrupts.CPU10.CAL:Function_call_interrupts
572.50 ± 6% +16.9% 669.17 ± 10% interrupts.CPU11.CAL:Function_call_interrupts
140.00 ± 36% +82.0% 254.83 ± 33% interrupts.CPU2.NMI:Non-maskable_interrupts
140.00 ± 36% +82.0% 254.83 ± 33% interrupts.CPU2.PMI:Performance_monitoring_interrupts
127.00 ± 44% +87.8% 238.50 ± 12% interrupts.CPU20.NMI:Non-maskable_interrupts
127.00 ± 44% +87.8% 238.50 ± 12% interrupts.CPU20.PMI:Performance_monitoring_interrupts
152.17 ± 26% +62.8% 247.67 ± 16% interrupts.CPU21.NMI:Non-maskable_interrupts
152.17 ± 26% +62.8% 247.67 ± 16% interrupts.CPU21.PMI:Performance_monitoring_interrupts
194.33 ± 28% -39.5% 117.50 ± 37% interrupts.CPU29.NMI:Non-maskable_interrupts
194.33 ± 28% -39.5% 117.50 ± 37% interrupts.CPU29.PMI:Performance_monitoring_interrupts
207.50 ± 26% -40.2% 124.17 ± 25% interrupts.CPU32.NMI:Non-maskable_interrupts
207.50 ± 26% -40.2% 124.17 ± 25% interrupts.CPU32.PMI:Performance_monitoring_interrupts
206.50 ± 17% -46.5% 110.50 ± 25% interrupts.CPU33.NMI:Non-maskable_interrupts
206.50 ± 17% -46.5% 110.50 ± 25% interrupts.CPU33.PMI:Performance_monitoring_interrupts
578.33 ± 3% +15.9% 670.50 ± 10% interrupts.CPU43.CAL:Function_call_interrupts
586.33 ± 4% +17.3% 687.50 ± 7% interrupts.CPU45.CAL:Function_call_interrupts
148.33 ± 35% +68.1% 249.33 ± 19% interrupts.CPU49.NMI:Non-maskable_interrupts
148.33 ± 35% +68.1% 249.33 ± 19% interrupts.CPU49.PMI:Performance_monitoring_interrupts
573.00 ± 5% +17.8% 675.17 ± 9% interrupts.CPU57.CAL:Function_call_interrupts
559.83 ± 6% +17.1% 655.50 ± 6% interrupts.CPU67.CAL:Function_call_interrupts
588.67 ± 5% +17.1% 689.17 ± 7% interrupts.CPU74.CAL:Function_call_interrupts
558.33 ± 7% +30.2% 727.00 ± 18% interrupts.CPU79.CAL:Function_call_interrupts
193.83 ± 20% -43.0% 110.50 ± 38% interrupts.CPU81.NMI:Non-maskable_interrupts
193.83 ± 20% -43.0% 110.50 ± 38% interrupts.CPU81.PMI:Performance_monitoring_interrupts
591.17 ± 8% +18.5% 700.50 ± 10% interrupts.CPU87.CAL:Function_call_interrupts
536.00 ± 6% +32.4% 709.83 ± 13% interrupts.CPU88.CAL:Function_call_interrupts
15028 ± 5% +16.6% 17516 ± 8% interrupts.NMI:Non-maskable_interrupts
15028 ± 5% +16.6% 17516 ± 8% interrupts.PMI:Performance_monitoring_interrupts
24148 +21.8% 29419 softirqs.BLOCK
12043 ± 15% -17.3% 9961 ± 6% softirqs.CPU1.RCU
10618 ± 5% -10.4% 9516 ± 5% softirqs.CPU12.RCU
10634 ± 6% -11.8% 9380 ± 4% softirqs.CPU13.RCU
10374 ± 5% -10.7% 9262 ± 4% softirqs.CPU14.RCU
10161 ± 3% -11.8% 8961 ± 5% softirqs.CPU16.RCU
10238 ± 3% -12.7% 8935 ± 4% softirqs.CPU17.RCU
10241 ± 3% -10.3% 9184 ± 4% softirqs.CPU18.RCU
10171 ± 3% -9.4% 9212 ± 5% softirqs.CPU19.RCU
10008 ± 4% -11.2% 8883 ± 6% softirqs.CPU20.RCU
10115 ± 3% -11.3% 8970 ± 4% softirqs.CPU21.RCU
10237 ± 2% -12.4% 8968 ± 3% softirqs.CPU22.RCU
10617 ± 5% -12.7% 9274 ± 6% softirqs.CPU24.RCU
9909 ± 2% -10.7% 8846 ± 5% softirqs.CPU25.RCU
9800 ± 2% -12.5% 8571 ± 3% softirqs.CPU26.RCU
10069 ± 5% -11.6% 8903 ± 5% softirqs.CPU27.RCU
10846 ± 10% -17.3% 8965 ± 5% softirqs.CPU28.RCU
10036 ± 5% -11.9% 8836 ± 6% softirqs.CPU30.RCU
10172 ± 7% -12.7% 8883 ± 4% softirqs.CPU31.RCU
10594 ± 6% -14.1% 9105 ± 6% softirqs.CPU36.RCU
10281 ± 5% -9.5% 9303 ± 4% softirqs.CPU49.RCU
10510 ± 4% -15.0% 8937 ± 6% softirqs.CPU55.RCU
10904 ± 5% -13.5% 9434 ± 7% softirqs.CPU57.RCU
2200 ±206% -100.0% 0.50 ±152% softirqs.CPU58.NET_RX
9863 ± 2% -11.2% 8755 ± 3% softirqs.CPU64.RCU
10247 ± 4% -11.8% 9033 ± 3% softirqs.CPU65.RCU
10101 ± 4% -10.5% 9042 ± 2% softirqs.CPU68.RCU
10155 ± 7% -10.9% 9052 ± 3% softirqs.CPU70.RCU
10153 ± 4% -12.5% 8888 ± 4% softirqs.CPU71.RCU
10158 ± 7% -13.0% 8834 ± 4% softirqs.CPU72.RCU
9909 ± 2% -13.9% 8528 ± 4% softirqs.CPU73.RCU
10625 ± 15% -19.9% 8514 ± 4% softirqs.CPU74.RCU
9998 ± 6% -11.7% 8829 ± 5% softirqs.CPU76.RCU
10191 ± 7% -13.0% 8866 ± 5% softirqs.CPU77.RCU
10061 ± 7% -12.0% 8852 ± 5% softirqs.CPU79.RCU
10730 ± 6% -11.7% 9478 ± 4% softirqs.CPU8.RCU
10626 ± 7% -11.2% 9431 ± 4% softirqs.CPU9.RCU
75.32 ± 3% -10.9 64.46 ± 3% perf-profile.calltrace.cycles-pp.secondary_startup_64_no_verify
74.52 ± 3% -10.8 63.68 ± 3% perf-profile.calltrace.cycles-pp.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
74.56 ± 3% -10.8 63.72 ± 3% perf-profile.calltrace.cycles-pp.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
74.56 ± 3% -10.8 63.72 ± 3% perf-profile.calltrace.cycles-pp.start_secondary.secondary_startup_64_no_verify
65.18 ± 4% -7.5 57.66 ± 3% perf-profile.calltrace.cycles-pp.cpuidle_enter.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
22.43 ± 2% -4.8 17.63 ± 9% perf-profile.calltrace.cycles-pp.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter.do_idle.cpu_startup_entry
16.91 ± 2% -3.4 13.52 ± 7% perf-profile.calltrace.cycles-pp.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter.do_idle
10.84 ± 2% -2.1 8.74 ± 6% perf-profile.calltrace.cycles-pp.asm_call_sysvec_on_stack.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter
10.76 ± 2% -2.1 8.69 ± 6% perf-profile.calltrace.cycles-pp.__sysvec_apic_timer_interrupt.asm_call_sysvec_on_stack.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state
10.56 ± 2% -2.0 8.53 ± 6% perf-profile.calltrace.cycles-pp.hrtimer_interrupt.__sysvec_apic_timer_interrupt.asm_call_sysvec_on_stack.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt
1.66 ± 30% -1.1 0.52 ± 47% perf-profile.calltrace.cycles-pp.__mutex_lock.lo_release.__blkdev_put.blkdev_put.blkdev_close
1.66 ± 30% -1.1 0.52 ± 47% perf-profile.calltrace.cycles-pp.lo_release.__blkdev_put.blkdev_put.blkdev_close.__fput
2.57 ± 13% -0.8 1.77 ± 9% perf-profile.calltrace.cycles-pp.tick_nohz_get_sleep_length.menu_select.do_idle.cpu_startup_entry.start_secondary
1.77 ± 13% -0.7 1.05 ± 6% perf-profile.calltrace.cycles-pp.mutex_spin_on_owner.__mutex_lock.loop_control_ioctl.__x64_sys_ioctl.do_syscall_64
3.50 ± 6% -0.7 2.84 ± 8% perf-profile.calltrace.cycles-pp.tick_sched_timer.__hrtimer_run_queues.hrtimer_interrupt.__sysvec_apic_timer_interrupt.asm_call_sysvec_on_stack
3.05 ± 5% -0.6 2.47 ± 7% perf-profile.calltrace.cycles-pp.irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter
2.50 ± 5% -0.6 1.95 ± 7% perf-profile.calltrace.cycles-pp.do_softirq_own_stack.irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state
2.49 ± 5% -0.5 1.94 ± 7% perf-profile.calltrace.cycles-pp.asm_call_sysvec_on_stack.do_softirq_own_stack.irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt
2.48 ± 5% -0.5 1.94 ± 7% perf-profile.calltrace.cycles-pp.__softirqentry_text_start.asm_call_sysvec_on_stack.do_softirq_own_stack.irq_exit_rcu.sysvec_apic_timer_interrupt
2.73 ± 6% -0.5 2.24 ± 9% perf-profile.calltrace.cycles-pp.update_process_times.tick_sched_handle.tick_sched_timer.__hrtimer_run_queues.hrtimer_interrupt
1.14 ± 11% -0.4 0.77 ± 7% perf-profile.calltrace.cycles-pp.rebalance_domains.__softirqentry_text_start.asm_call_sysvec_on_stack.do_softirq_own_stack.irq_exit_rcu
1.04 ± 8% -0.2 0.80 ± 15% perf-profile.calltrace.cycles-pp.ktime_get_update_offsets_now.hrtimer_interrupt.__sysvec_apic_timer_interrupt.asm_call_sysvec_on_stack.sysvec_apic_timer_interrupt
0.47 ± 45% +0.4 0.87 ± 10% perf-profile.calltrace.cycles-pp.loop_remove.loop_control_ioctl.__x64_sys_ioctl.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.26 ±100% +0.5 0.76 ± 12% perf-profile.calltrace.cycles-pp.debugfs_remove.blk_mq_debugfs_unregister_hctx.blk_mq_exit_queue.blk_cleanup_queue.loop_remove
0.26 ±100% +0.5 0.76 ± 12% perf-profile.calltrace.cycles-pp.simple_recursive_removal.debugfs_remove.blk_mq_debugfs_unregister_hctx.blk_mq_exit_queue.blk_cleanup_queue
0.26 ±100% +0.5 0.76 ± 12% perf-profile.calltrace.cycles-pp.blk_mq_exit_queue.blk_cleanup_queue.loop_remove.loop_control_ioctl.__x64_sys_ioctl
0.26 ±100% +0.5 0.76 ± 12% perf-profile.calltrace.cycles-pp.blk_mq_debugfs_unregister_hctx.blk_mq_exit_queue.blk_cleanup_queue.loop_remove.loop_control_ioctl
0.27 ±100% +0.5 0.78 ± 11% perf-profile.calltrace.cycles-pp.blk_cleanup_queue.loop_remove.loop_control_ioctl.__x64_sys_ioctl.do_syscall_64
0.00 +0.7 0.69 ± 14% perf-profile.calltrace.cycles-pp.smp_call_function_many_cond.on_each_cpu_cond_mask.kill_bdev.__blkdev_put.blkdev_put
0.00 +0.7 0.69 ± 14% perf-profile.calltrace.cycles-pp.on_each_cpu_cond_mask.kill_bdev.__blkdev_put.blkdev_put.blkdev_close
0.00 +0.7 0.69 ± 14% perf-profile.calltrace.cycles-pp.kill_bdev.__blkdev_put.blkdev_put.blkdev_close.__fput
2.46 ± 12% +2.8 5.30 ± 19% perf-profile.calltrace.cycles-pp.set_capacity_and_notify.cold.loop_set_size.lo_ioctl.blkdev_ioctl.block_ioctl
2.44 ± 11% +2.8 5.29 ± 19% perf-profile.calltrace.cycles-pp.vprintk_emit.printk.set_capacity_and_notify.cold.loop_set_size.lo_ioctl
2.46 ± 12% +2.8 5.30 ± 19% perf-profile.calltrace.cycles-pp.loop_set_size.lo_ioctl.blkdev_ioctl.block_ioctl.__x64_sys_ioctl
2.44 ± 11% +2.8 5.29 ± 19% perf-profile.calltrace.cycles-pp.printk.set_capacity_and_notify.cold.loop_set_size.lo_ioctl.blkdev_ioctl
3.21 ± 12% +3.3 6.48 ± 14% perf-profile.calltrace.cycles-pp.io_serial_in.wait_for_xmitr.serial8250_console_putchar.uart_console_write.serial8250_console_write
2.50 ± 20% +3.6 6.09 ± 11% perf-profile.calltrace.cycles-pp.loop_configure.lo_ioctl.blkdev_ioctl.block_ioctl.__x64_sys_ioctl
2.37 ± 21% +3.6 6.01 ± 11% perf-profile.calltrace.cycles-pp.printk.set_capacity_and_notify.cold.loop_set_size.loop_configure.lo_ioctl
2.37 ± 21% +3.6 6.01 ± 11% perf-profile.calltrace.cycles-pp.vprintk_emit.printk.set_capacity_and_notify.cold.loop_set_size.loop_configure
2.37 ± 21% +3.6 6.01 ± 11% perf-profile.calltrace.cycles-pp.loop_set_size.loop_configure.lo_ioctl.blkdev_ioctl.block_ioctl
2.37 ± 21% +3.6 6.01 ± 11% perf-profile.calltrace.cycles-pp.set_capacity_and_notify.cold.loop_set_size.loop_configure.lo_ioctl.blkdev_ioctl
4.12 ± 14% +3.8 7.93 ± 16% perf-profile.calltrace.cycles-pp.wait_for_xmitr.serial8250_console_putchar.uart_console_write.serial8250_console_write.console_unlock
4.12 ± 14% +3.8 7.93 ± 16% perf-profile.calltrace.cycles-pp.serial8250_console_putchar.uart_console_write.serial8250_console_write.console_unlock.vprintk_emit
4.33 ± 13% +4.2 8.52 ± 16% perf-profile.calltrace.cycles-pp.uart_console_write.serial8250_console_write.console_unlock.vprintk_emit.printk
14.71 ± 14% +4.3 18.99 ± 10% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe
4.40 ± 16% +4.4 8.84 ± 15% perf-profile.calltrace.cycles-pp.serial8250_console_write.console_unlock.vprintk_emit.printk.set_capacity_and_notify.cold
7.00 ± 13% +4.6 11.64 ± 12% perf-profile.calltrace.cycles-pp.block_ioctl.__x64_sys_ioctl.do_syscall_64.entry_SYSCALL_64_after_hwframe
7.00 ± 13% +4.6 11.64 ± 12% perf-profile.calltrace.cycles-pp.blkdev_ioctl.block_ioctl.__x64_sys_ioctl.do_syscall_64.entry_SYSCALL_64_after_hwframe
4.81 ± 16% +4.7 9.50 ± 15% perf-profile.calltrace.cycles-pp.console_unlock.vprintk_emit.printk.set_capacity_and_notify.cold.loop_set_size
6.92 ± 13% +4.7 11.62 ± 12% perf-profile.calltrace.cycles-pp.lo_ioctl.blkdev_ioctl.block_ioctl.__x64_sys_ioctl.do_syscall_64
10.51 ± 14% +4.7 15.26 ± 10% perf-profile.calltrace.cycles-pp.__x64_sys_ioctl.do_syscall_64.entry_SYSCALL_64_after_hwframe
12.76 ± 13% +4.8 17.57 ± 10% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe
6.52 ± 4% +5.7 12.19 ± 3% perf-profile.calltrace.cycles-pp.memcpy_toio.drm_fb_helper_damage_work.process_one_work.worker_thread.kthread
6.75 ± 4% +5.8 12.59 ± 3% perf-profile.calltrace.cycles-pp.drm_fb_helper_damage_work.process_one_work.worker_thread.kthread.ret_from_fork
6.83 ± 4% +6.4 13.19 ± 3% perf-profile.calltrace.cycles-pp.process_one_work.worker_thread.kthread.ret_from_fork
6.88 ± 4% +6.4 13.24 ± 3% perf-profile.calltrace.cycles-pp.worker_thread.kthread.ret_from_fork
7.29 ± 5% +6.5 13.74 ± 3% perf-profile.calltrace.cycles-pp.kthread.ret_from_fork
7.29 ± 5% +6.5 13.75 ± 3% perf-profile.calltrace.cycles-pp.ret_from_fork
75.32 ± 3% -10.9 64.46 ± 3% perf-profile.children.cycles-pp.do_idle
75.32 ± 3% -10.9 64.46 ± 3% perf-profile.children.cycles-pp.secondary_startup_64_no_verify
75.32 ± 3% -10.9 64.46 ± 3% perf-profile.children.cycles-pp.cpu_startup_entry
74.56 ± 3% -10.8 63.72 ± 3% perf-profile.children.cycles-pp.start_secondary
65.82 ± 4% -7.5 58.28 ± 3% perf-profile.children.cycles-pp.cpuidle_enter_state
65.87 ± 4% -7.5 58.34 ± 3% perf-profile.children.cycles-pp.cpuidle_enter
20.41 -4.0 16.42 ± 7% perf-profile.children.cycles-pp.asm_sysvec_apic_timer_interrupt
8.69 ± 14% -3.9 4.77 ± 15% perf-profile.children.cycles-pp.__mutex_lock
17.24 ± 2% -3.4 13.80 ± 7% perf-profile.children.cycles-pp.sysvec_apic_timer_interrupt
14.15 ± 3% -2.7 11.47 ± 5% perf-profile.children.cycles-pp.asm_call_sysvec_on_stack
4.94 ± 7% -2.2 2.73 ± 14% perf-profile.children.cycles-pp.mutex_spin_on_owner
10.97 ± 2% -2.1 8.88 ± 6% perf-profile.children.cycles-pp.__sysvec_apic_timer_interrupt
10.77 ± 2% -2.0 8.72 ± 6% perf-profile.children.cycles-pp.hrtimer_interrupt
3.69 ± 22% -1.7 2.00 ± 27% perf-profile.children.cycles-pp.osq_lock
1.89 ± 22% -1.3 0.63 ± 23% perf-profile.children.cycles-pp.lo_release
2.60 ± 13% -0.8 1.81 ± 9% perf-profile.children.cycles-pp.tick_nohz_get_sleep_length
3.59 ± 5% -0.7 2.93 ± 8% perf-profile.children.cycles-pp.tick_sched_timer
3.14 ± 5% -0.6 2.54 ± 7% perf-profile.children.cycles-pp.irq_exit_rcu
2.55 ± 5% -0.6 2.00 ± 7% perf-profile.children.cycles-pp.do_softirq_own_stack
2.57 ± 5% -0.5 2.05 ± 7% perf-profile.children.cycles-pp.__softirqentry_text_start
2.81 ± 6% -0.5 2.31 ± 9% perf-profile.children.cycles-pp.update_process_times
1.15 ± 10% -0.4 0.79 ± 7% perf-profile.children.cycles-pp.rebalance_domains
1.07 ± 9% -0.2 0.83 ± 15% perf-profile.children.cycles-pp.ktime_get_update_offsets_now
0.90 ± 8% -0.2 0.69 ± 15% perf-profile.children.cycles-pp.irqtime_account_irq
1.44 ± 7% -0.2 1.23 ± 11% perf-profile.children.cycles-pp.scheduler_tick
0.89 ± 8% -0.2 0.74 ± 11% perf-profile.children.cycles-pp.lapic_next_deadline
0.59 ± 9% -0.1 0.45 ± 9% perf-profile.children.cycles-pp._raw_spin_lock_irqsave
0.84 ± 5% -0.1 0.72 ± 9% perf-profile.children.cycles-pp.read_tsc
0.29 ± 11% -0.1 0.22 ± 14% perf-profile.children.cycles-pp.note_gp_changes
0.23 ± 8% -0.1 0.17 ± 15% perf-profile.children.cycles-pp.arch_cpu_idle_enter
0.08 ± 23% -0.1 0.03 ±101% perf-profile.children.cycles-pp.vm_mmap_pgoff
0.08 ± 22% -0.1 0.03 ±100% perf-profile.children.cycles-pp.do_mmap
0.21 ± 9% -0.0 0.17 ± 14% perf-profile.children.cycles-pp.tsc_verify_tsc_adjust
0.12 ± 19% -0.0 0.09 ± 8% perf-profile.children.cycles-pp.mmput
0.12 ± 17% -0.0 0.09 ± 8% perf-profile.children.cycles-pp.exit_mmap
0.06 ± 17% +0.0 0.11 ± 18% perf-profile.children.cycles-pp.d_invalidate
0.02 ±142% +0.0 0.07 ± 21% perf-profile.children.cycles-pp.strncpy_from_user
0.02 ±141% +0.0 0.07 ± 19% perf-profile.children.cycles-pp.do_faccessat
0.03 ±103% +0.0 0.08 ± 20% perf-profile.children.cycles-pp.___slab_alloc
0.03 ±103% +0.1 0.09 ± 22% perf-profile.children.cycles-pp.__slab_alloc
0.03 ±100% +0.1 0.08 ± 19% perf-profile.children.cycles-pp.del_gendisk
0.01 ±223% +0.1 0.07 ± 15% perf-profile.children.cycles-pp.pcpu_alloc
0.04 ± 72% +0.1 0.10 ± 15% perf-profile.children.cycles-pp.getname_flags
0.01 ±223% +0.1 0.07 ± 31% perf-profile.children.cycles-pp.ahci_single_level_irq_intr
0.09 ± 11% +0.1 0.16 ± 13% perf-profile.children.cycles-pp.cpumask_next
0.01 ±223% +0.1 0.08 ± 33% perf-profile.children.cycles-pp.__handle_irq_event_percpu
0.00 +0.1 0.07 ± 10% perf-profile.children.cycles-pp.blk_mq_init_queue_data
0.01 ±223% +0.1 0.08 ± 31% perf-profile.children.cycles-pp.handle_irq_event_percpu
0.03 ±102% +0.1 0.10 ± 25% perf-profile.children.cycles-pp.asm_common_interrupt
0.03 ±102% +0.1 0.10 ± 25% perf-profile.children.cycles-pp.common_interrupt
0.09 ± 21% +0.1 0.16 ± 17% perf-profile.children.cycles-pp.d_alloc
0.01 ±223% +0.1 0.09 ± 29% perf-profile.children.cycles-pp.handle_edge_irq
0.01 ±223% +0.1 0.09 ± 32% perf-profile.children.cycles-pp.handle_irq_event
0.09 ± 21% +0.1 0.16 ± 28% perf-profile.children.cycles-pp.new_inode
0.08 ± 26% +0.1 0.16 ± 28% perf-profile.children.cycles-pp.new_inode_pseudo
0.09 ± 22% +0.1 0.16 ± 28% perf-profile.children.cycles-pp.debugfs_get_inode
0.17 ± 22% +0.1 0.24 ± 20% perf-profile.children.cycles-pp.__dentry_kill
0.06 ± 55% +0.1 0.14 ± 22% perf-profile.children.cycles-pp.alloc_inode
0.11 ± 20% +0.1 0.19 ± 7% perf-profile.children.cycles-pp.d_alloc_parallel
0.33 ± 14% +0.1 0.42 ± 6% perf-profile.children.cycles-pp.schedule
0.21 ± 15% +0.1 0.31 ± 14% perf-profile.children.cycles-pp.pick_next_task_fair
0.18 ± 15% +0.1 0.27 ± 12% perf-profile.children.cycles-pp.kmem_cache_free
0.17 ± 24% +0.1 0.28 ± 13% perf-profile.children.cycles-pp.walk_component
0.17 ± 14% +0.1 0.28 ± 13% perf-profile.children.cycles-pp.rcu_do_batch
0.12 ± 25% +0.1 0.22 ± 8% perf-profile.children.cycles-pp.lookup_one_len
0.15 ± 15% +0.1 0.26 ± 15% perf-profile.children.cycles-pp.__lookup_slow
0.41 ± 9% +0.1 0.52 ± 6% perf-profile.children.cycles-pp.__schedule
0.12 ± 26% +0.1 0.24 ± 9% perf-profile.children.cycles-pp.start_creating
0.12 ± 26% +0.1 0.24 ± 34% perf-profile.children.cycles-pp.link_path_walk
0.23 ± 8% +0.1 0.35 ± 11% perf-profile.children.cycles-pp.mnt_get_count
0.23 ± 8% +0.1 0.37 ± 10% perf-profile.children.cycles-pp.mntput_no_expire
0.25 ± 17% +0.1 0.40 ± 12% perf-profile.children.cycles-pp.kmem_cache_alloc
0.17 ± 27% +0.1 0.32 ± 33% perf-profile.children.cycles-pp.path_lookupat
0.19 ± 20% +0.2 0.37 ± 11% perf-profile.children.cycles-pp.debugfs_create_files
0.19 ± 19% +0.2 0.37 ± 11% perf-profile.children.cycles-pp.__debugfs_create_file
0.22 ± 23% +0.2 0.42 ± 11% perf-profile.children.cycles-pp.blk_mq_debugfs_register
0.21 ± 23% +0.2 0.41 ± 10% perf-profile.children.cycles-pp.blk_mq_debugfs_register_hctx
0.26 ± 21% +0.2 0.48 ± 14% perf-profile.children.cycles-pp.blk_register_queue
0.28 ± 21% +0.2 0.52 ± 14% perf-profile.children.cycles-pp.__device_add_disk
0.49 ± 8% +0.3 0.76 ± 12% perf-profile.children.cycles-pp.blk_mq_exit_queue
0.49 ± 8% +0.3 0.76 ± 12% perf-profile.children.cycles-pp.blk_mq_debugfs_unregister_hctx
0.50 ± 8% +0.3 0.78 ± 11% perf-profile.children.cycles-pp.blk_cleanup_queue
0.51 ± 10% +0.3 0.80 ± 11% perf-profile.children.cycles-pp.simple_recursive_removal
0.32 ± 17% +0.3 0.60 ± 13% perf-profile.children.cycles-pp.loop_add
0.51 ± 9% +0.3 0.80 ± 11% perf-profile.children.cycles-pp.debugfs_remove
0.55 ± 8% +0.3 0.87 ± 10% perf-profile.children.cycles-pp.loop_remove
0.24 ± 25% +0.4 0.63 ± 17% perf-profile.children.cycles-pp.io_serial_out
0.01 ±223% +0.5 0.51 ± 17% perf-profile.children.cycles-pp.sync_rcu_exp_select_node_cpus
0.00 +0.5 0.52 ± 16% perf-profile.children.cycles-pp.smp_call_function_single
0.20 ± 29% +0.6 0.79 ± 10% perf-profile.children.cycles-pp.kill_bdev
0.20 ± 28% +0.7 0.86 ± 9% perf-profile.children.cycles-pp.on_each_cpu_cond_mask
0.20 ± 28% +0.7 0.86 ± 9% perf-profile.children.cycles-pp.smp_call_function_many_cond
3.70 ± 12% +3.4 7.09 ± 13% perf-profile.children.cycles-pp.io_serial_in
2.50 ± 20% +3.6 6.09 ± 11% perf-profile.children.cycles-pp.loop_configure
4.54 ± 12% +3.7 8.22 ± 14% perf-profile.children.cycles-pp.serial8250_console_putchar
4.75 ± 12% +3.9 8.63 ± 14% perf-profile.children.cycles-pp.wait_for_xmitr
4.77 ± 12% +4.1 8.84 ± 14% perf-profile.children.cycles-pp.uart_console_write
5.00 ± 12% +4.3 9.27 ± 14% perf-profile.children.cycles-pp.serial8250_console_write
16.64 ± 11% +4.3 20.98 ± 9% perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
5.44 ± 12% +4.5 9.95 ± 14% perf-profile.children.cycles-pp.console_unlock
7.05 ± 13% +4.6 11.65 ± 12% perf-profile.children.cycles-pp.block_ioctl
7.05 ± 13% +4.6 11.65 ± 12% perf-profile.children.cycles-pp.blkdev_ioctl
6.97 ± 13% +4.7 11.63 ± 12% perf-profile.children.cycles-pp.lo_ioctl
10.57 ± 14% +4.7 15.26 ± 10% perf-profile.children.cycles-pp.__x64_sys_ioctl
14.30 ± 11% +4.9 19.20 ± 9% perf-profile.children.cycles-pp.do_syscall_64
6.74 ± 4% +5.8 12.58 ± 3% perf-profile.children.cycles-pp.memcpy_toio
6.75 ± 4% +5.8 12.59 ± 3% perf-profile.children.cycles-pp.drm_fb_helper_damage_work
5.48 ± 11% +6.3 11.77 ± 12% perf-profile.children.cycles-pp.vprintk_emit
5.48 ± 11% +6.3 11.77 ± 12% perf-profile.children.cycles-pp.printk
6.83 ± 4% +6.4 13.19 ± 3% perf-profile.children.cycles-pp.process_one_work
6.88 ± 4% +6.4 13.25 ± 3% perf-profile.children.cycles-pp.worker_thread
7.29 ± 5% +6.5 13.74 ± 3% perf-profile.children.cycles-pp.kthread
7.30 ± 5% +6.5 13.76 ± 3% perf-profile.children.cycles-pp.ret_from_fork
4.83 ± 16% +6.5 11.31 ± 13% perf-profile.children.cycles-pp.loop_set_size
4.83 ± 16% +6.5 11.31 ± 13% perf-profile.children.cycles-pp.set_capacity_and_notify.cold
4.91 ± 8% -2.2 2.71 ± 14% perf-profile.self.cycles-pp.mutex_spin_on_owner
3.63 ± 21% -1.6 1.99 ± 27% perf-profile.self.cycles-pp.osq_lock
0.58 ± 20% -0.2 0.40 ± 8% perf-profile.self.cycles-pp.update_process_times
0.89 ± 8% -0.2 0.73 ± 12% perf-profile.self.cycles-pp.lapic_next_deadline
0.57 ± 9% -0.1 0.43 ± 8% perf-profile.self.cycles-pp._raw_spin_lock_irqsave
0.81 ± 5% -0.1 0.70 ± 10% perf-profile.self.cycles-pp.read_tsc
0.20 ± 11% -0.0 0.15 ± 16% perf-profile.self.cycles-pp.tsc_verify_tsc_adjust
0.08 ± 11% +0.0 0.13 ± 26% perf-profile.self.cycles-pp.kmem_cache_free
0.08 ± 22% +0.1 0.14 ± 18% perf-profile.self.cycles-pp.kmem_cache_alloc
0.15 ± 14% +0.1 0.21 ± 14% perf-profile.self.cycles-pp.mnt_get_count
0.24 ± 25% +0.4 0.63 ± 17% perf-profile.self.cycles-pp.io_serial_out
0.00 +0.5 0.51 ± 17% perf-profile.self.cycles-pp.smp_call_function_single
0.20 ± 29% +0.6 0.82 ± 4% perf-profile.self.cycles-pp.smp_call_function_many_cond
0.04 ±141% +1.8 1.83 ± 16% perf-profile.self.cycles-pp.vprintk_emit
3.70 ± 12% +3.4 7.09 ± 13% perf-profile.self.cycles-pp.io_serial_in
6.69 ± 4% +5.8 12.51 ± 3% perf-profile.self.cycles-pp.memcpy_toio
stress-ng.time.system_time
30 +----------------------------------------------------------------------+
| |
25 |-+ O O |
|O O O OO OO OO O OO OO OO OOO OO OO |
| O O O OOO O O O O O O OO O O O O |
20 |-+ |
| |
15 |-+.+ +.+++ +. +++.+++ .++ .+++ .+++ .++ + +. +. ++ ++. |
|+ ++ + + ++ ++ + ++ ++.+ ++ ++ : ++ +.++ ++|
10 |-+ : : |
| : : |
| : |
5 |-+ : |
| : |
0 +----------------------------------------------------------------------+
stress-ng.time.percent_of_cpu_this_job_got
40 +----------------------------------------------------------------------+
|O O OO OOO OO OOOO O O OO OO OO O OO |
35 |-O O O OO O O O O O O O O |
30 |-+ |
| |
25 |-+ |
| +.+ +.+++ +. +++.+++ .++ .+++ .+++ .++ ++ +.++ +.+ ++ .+ ++. +|
20 |++ ++ + + ++ ++ + ++ ++.+ + : : + + + + |
| : : |
15 |-+ : : |
10 |-+ :: |
| : |
5 |-+ : |
| : |
0 +----------------------------------------------------------------------+
stress-ng.time.involuntary_context_switches
4500 +--------------------------------------------------------------------+
|O O O O O O O OOO O |
4000 |-O O O OOOO OO OO OOOO OO OO OO OO O O OO O |
3500 |-+ O OO |
| |
3000 |-+ |
2500 |-+ ++ +. + +. |
|++.+ ++.++++++.+++++.++ : +++ .+++++ +++++.+++++ +++ +.++++ ++|
2000 |-+ ++ +.+ + : : |
1500 |-+ : : |
| : : |
1000 |-+ :: |
500 |-+ :: |
| : |
0 +--------------------------------------------------------------------+
stress-ng.loop.ops
1800 +--------------------------------------------------------------------+
| O O O O O O OO |
1600 |OO O OOOO OO OO OOOOO OO OO OO OO OO O OOOO |
1400 |-+ O O OO |
| |
1200 |-+ |
1000 |-+ |
| |
800 |-+ + +. + +. |
600 |++.+++++.++++++.+++++.+++ +.+++++.+++++ +++++.+++++ +++ +.++++ ++|
| : : |
400 |-+ : : |
200 |-+ :: |
| : |
0 +--------------------------------------------------------------------+
stress-ng.loop.ops_per_sec
30 +----------------------------------------------------------------------+
| O O O O O O O O |
25 |OO O OO OOOO OOOO OOOO O OO OO O OOO OOOO O |
| O O OO |
| |
20 |-+ |
| |
15 |-+ |
| + .+ + +. |
10 |++.++++.+++++.++++.+++++.+ ++.++++.+++++ +++.+++++.++ +.++ ++.+++ ++|
| : : |
| : : |
5 |-+ : |
| : |
0 +----------------------------------------------------------------------+
[*] bisect-good sample
[O] bisect-bad sample
***************************************************************************************************
lkp-csl-2sp7: 96 threads Intel(R) Xeon(R) Gold 6252 CPU @ 2.10GHz with 512G memory
=========================================================================================
class/compiler/cpufreq_governor/disk/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime/ucode:
device/gcc-9/performance/1HDD/x86_64-rhel-8.3/100%/debian-10.4-x86_64-20200603.cgz/lkp-csl-2sp7/loop/stress-ng/60s/0x5003003
commit:
767630c63b ("bdev: Do not return EBUSY if bdev discard races with write")
6cc8e74308 ("loop: scale loop device by introducing per device lock")
767630c63bb23acf 6cc8e7430801fa238bd7d3acae1
---------------- ---------------------------
fail:runs %reproduction fail:runs
| | |
1:6 -17% :6 kmsg.blk_update_request:I/O_error,dev_loop#,sector#op#:(READ)flags#phys_seg#prio_class
:6 33% 2:6 kmsg.debugfs:Directory'loop#'with_parent'block'already_present
0:6 -3% 0:6 perf-profile.children.cycles-pp.error_entry
0:6 -2% 0:6 perf-profile.self.cycles-pp.error_entry
%stddev %change %stddev
\ | \
1070 ± 5% +137.5% 2542 ± 4% stress-ng.loop.ops
17.42 ± 5% +140.6% 41.91 ± 4% stress-ng.loop.ops_per_sec
64.37 -2.1% 63.02 stress-ng.time.elapsed_time
64.37 -2.1% 63.02 stress-ng.time.elapsed_time.max
2075 ± 4% +75.2% 3635 ± 4% stress-ng.time.involuntary_context_switches
26.83 ± 3% +59.6% 42.83 ± 4% stress-ng.time.percent_of_cpu_this_job_got
17.58 ± 3% +53.9% 27.06 ± 3% stress-ng.time.system_time
27069 ± 7% +31.1% 35492 ± 4% stress-ng.time.voluntary_context_switches
0.44 ± 5% +0.2 0.62 ± 3% mpstat.cpu.all.sys%
0.16 ± 2% +0.0 0.19 ± 3% mpstat.cpu.all.usr%
598.17 ± 16% -73.4% 159.00 ± 9% vmstat.io.bi
361.00 ± 14% -95.9% 14.67 ± 19% vmstat.memory.buff
4581 ± 5% +13.3% 5189 ± 2% vmstat.system.cs
1161 ± 2% +13.7% 1321 slabinfo.request_queue.active_objs
1161 ± 2% +13.7% 1321 slabinfo.request_queue.num_objs
3470 +16.0% 4027 ± 3% slabinfo.shmem_inode_cache.active_objs
3474 +16.0% 4028 ± 3% slabinfo.shmem_inode_cache.num_objs
782.67 ± 3% +6.4% 833.00 ± 2% proc-vmstat.nr_active_anon
94.50 ± 4% -27.9% 68.17 proc-vmstat.nr_active_file
95.50 ± 8% -59.9% 38.33 proc-vmstat.nr_inactive_file
3743 +1.3% 3791 proc-vmstat.nr_shmem
25198 ± 2% -4.3% 24124 proc-vmstat.nr_slab_reclaimable
782.67 ± 3% +6.4% 833.00 ± 2% proc-vmstat.nr_zone_active_anon
94.50 ± 4% -27.9% 68.17 proc-vmstat.nr_zone_active_file
95.50 ± 8% -59.9% 38.33 proc-vmstat.nr_zone_inactive_file
481597 ± 2% +5.1% 506266 proc-vmstat.numa_hit
392250 ± 2% +6.0% 415881 proc-vmstat.numa_local
89347 +1.2% 90385 proc-vmstat.numa_other
3740 ± 7% +45.5% 5443 ± 4% proc-vmstat.pgactivate
548576 ± 3% +16.1% 636943 proc-vmstat.pgalloc_normal
398656 ± 4% +22.5% 488228 ± 2% proc-vmstat.pgfree
40416 ± 16% -73.9% 10544 ± 9% proc-vmstat.pgpgin
5115 ± 9% -54.9% 2307 ± 7% proc-vmstat.unevictable_pgs_culled
3.809e+08 ± 3% +13.6% 4.326e+08 perf-stat.i.branch-instructions
2358502 ± 10% +27.9% 3017632 ± 9% perf-stat.i.cache-misses
4439 ± 5% +15.6% 5131 ± 2% perf-stat.i.context-switches
4.894e+09 ± 6% +22.3% 5.984e+09 ± 6% perf-stat.i.cpu-cycles
160.49 ± 3% +10.3% 177.08 perf-stat.i.cpu-migrations
4.319e+08 ± 3% +14.9% 4.961e+08 perf-stat.i.dTLB-loads
1.899e+08 ± 4% +22.2% 2.321e+08 ± 2% perf-stat.i.dTLB-stores
1.828e+09 ± 3% +15.1% 2.104e+09 perf-stat.i.instructions
0.05 ± 6% +22.3% 0.06 ± 6% perf-stat.i.metric.GHz
10.69 ± 2% +16.0% 12.40 perf-stat.i.metric.M/sec
364538 ± 3% +41.4% 515603 ± 4% perf-stat.i.node-load-misses
112390 ± 5% +52.2% 171079 ± 7% perf-stat.i.node-loads
186665 ± 4% +75.9% 328357 ± 3% perf-stat.i.node-store-misses
83230 ± 19% +58.1% 131582 ± 17% perf-stat.i.node-stores
3.755e+08 ± 3% +13.5% 4.261e+08 perf-stat.ps.branch-instructions
2322845 ± 10% +27.9% 2970407 ± 9% perf-stat.ps.cache-misses
4370 ± 5% +15.5% 5049 ± 2% perf-stat.ps.context-switches
4.82e+09 ± 6% +22.2% 5.89e+09 ± 6% perf-stat.ps.cpu-cycles
158.00 ± 3% +10.3% 174.27 perf-stat.ps.cpu-migrations
4.256e+08 ± 3% +14.8% 4.885e+08 perf-stat.ps.dTLB-loads
1.871e+08 ± 4% +22.1% 2.285e+08 ± 2% perf-stat.ps.dTLB-stores
1.802e+09 ± 3% +15.0% 2.072e+09 perf-stat.ps.instructions
359034 ± 3% +41.4% 507579 ± 4% perf-stat.ps.node-load-misses
110677 ± 5% +52.1% 168386 ± 7% perf-stat.ps.node-loads
183795 ± 4% +75.8% 323141 ± 3% perf-stat.ps.node-store-misses
82030 ± 19% +57.9% 129529 ± 17% perf-stat.ps.node-stores
1.177e+11 ± 3% +12.5% 1.323e+11 perf-stat.total.instructions
2168 ± 38% -60.6% 854.17 ± 44% interrupts.CPU0.CAL:Function_call_interrupts
126.17 ± 34% +103.6% 256.83 ± 25% interrupts.CPU1.NMI:Non-maskable_interrupts
126.17 ± 34% +103.6% 256.83 ± 25% interrupts.CPU1.PMI:Performance_monitoring_interrupts
552.33 ± 4% +32.5% 731.83 ± 33% interrupts.CPU14.CAL:Function_call_interrupts
157.17 ± 16% +58.2% 248.67 ± 24% interrupts.CPU19.NMI:Non-maskable_interrupts
157.17 ± 16% +58.2% 248.67 ± 24% interrupts.CPU19.PMI:Performance_monitoring_interrupts
149.33 ± 19% +48.4% 221.67 ± 13% interrupts.CPU20.NMI:Non-maskable_interrupts
149.33 ± 19% +48.4% 221.67 ± 13% interrupts.CPU20.PMI:Performance_monitoring_interrupts
150.67 ± 46% +50.8% 227.17 ± 17% interrupts.CPU21.NMI:Non-maskable_interrupts
150.67 ± 46% +50.8% 227.17 ± 17% interrupts.CPU21.PMI:Performance_monitoring_interrupts
126.50 ± 22% +84.7% 233.67 ± 18% interrupts.CPU23.NMI:Non-maskable_interrupts
126.50 ± 22% +84.7% 233.67 ± 18% interrupts.CPU23.PMI:Performance_monitoring_interrupts
139.67 ± 26% +36.3% 190.33 ± 15% interrupts.CPU25.NMI:Non-maskable_interrupts
139.67 ± 26% +36.3% 190.33 ± 15% interrupts.CPU25.PMI:Performance_monitoring_interrupts
108.33 ± 29% +108.5% 225.83 ± 19% interrupts.CPU29.NMI:Non-maskable_interrupts
108.33 ± 29% +108.5% 225.83 ± 19% interrupts.CPU29.PMI:Performance_monitoring_interrupts
557.33 ± 3% +32.6% 739.17 ± 22% interrupts.CPU36.CAL:Function_call_interrupts
93.33 ± 29% +95.7% 182.67 ± 26% interrupts.CPU39.NMI:Non-maskable_interrupts
93.33 ± 29% +95.7% 182.67 ± 26% interrupts.CPU39.PMI:Performance_monitoring_interrupts
146.17 ± 18% +62.7% 237.83 ± 45% interrupts.CPU48.NMI:Non-maskable_interrupts
146.17 ± 18% +62.7% 237.83 ± 45% interrupts.CPU48.PMI:Performance_monitoring_interrupts
551.83 ± 4% +11.4% 614.67 ± 3% interrupts.CPU58.CAL:Function_call_interrupts
540.33 ± 2% +14.9% 620.67 ± 7% interrupts.CPU59.CAL:Function_call_interrupts
132.83 ± 25% +58.1% 210.00 ± 28% interrupts.CPU61.NMI:Non-maskable_interrupts
132.83 ± 25% +58.1% 210.00 ± 28% interrupts.CPU61.PMI:Performance_monitoring_interrupts
538.50 +14.1% 614.33 ± 4% interrupts.CPU64.CAL:Function_call_interrupts
118.67 ± 33% +84.3% 218.67 ± 30% interrupts.CPU64.NMI:Non-maskable_interrupts
118.67 ± 33% +84.3% 218.67 ± 30% interrupts.CPU64.PMI:Performance_monitoring_interrupts
544.00 ± 4% +12.5% 612.17 ± 3% interrupts.CPU65.CAL:Function_call_interrupts
114.50 ± 28% +139.9% 274.67 ± 30% interrupts.CPU66.NMI:Non-maskable_interrupts
114.50 ± 28% +139.9% 274.67 ± 30% interrupts.CPU66.PMI:Performance_monitoring_interrupts
601.17 ± 9% +15.7% 695.83 ± 7% interrupts.CPU7.CAL:Function_call_interrupts
554.33 ± 2% +14.9% 637.00 ± 6% interrupts.CPU71.CAL:Function_call_interrupts
133.50 ± 24% +67.3% 223.33 ± 17% interrupts.CPU71.NMI:Non-maskable_interrupts
133.50 ± 24% +67.3% 223.33 ± 17% interrupts.CPU71.PMI:Performance_monitoring_interrupts
564.67 ± 10% +20.4% 680.00 ± 20% interrupts.CPU74.CAL:Function_call_interrupts
566.00 ± 8% +17.2% 663.50 ± 12% interrupts.CPU90.CAL:Function_call_interrupts
550.00 ± 3% +16.7% 642.00 ± 13% interrupts.CPU93.CAL:Function_call_interrupts
554.67 ± 5% +18.1% 655.17 ± 16% interrupts.CPU95.CAL:Function_call_interrupts
13344 ± 6% +37.3% 18317 ± 6% interrupts.NMI:Non-maskable_interrupts
13344 ± 6% +37.3% 18317 ± 6% interrupts.PMI:Performance_monitoring_interrupts
58.74 ± 25% +1561.4% 975.89 ± 48% sched_debug.cfs_rq:/.load_avg.avg
998.33 ± 4% +3862.1% 39555 ± 15% sched_debug.cfs_rq:/.load_avg.max
202.08 ± 17% +2535.1% 5324 ± 27% sched_debug.cfs_rq:/.load_avg.stddev
0.15 ± 20% -42.2% 0.09 ± 9% sched_debug.cfs_rq:/.nr_running.avg
0.36 ± 8% -25.7% 0.27 ± 5% sched_debug.cfs_rq:/.nr_running.stddev
31.58 ± 48% -82.4% 5.57 ± 81% sched_debug.cfs_rq:/.removed.load_avg.avg
165.98 ± 29% -71.3% 47.65 ± 80% sched_debug.cfs_rq:/.removed.load_avg.stddev
10.40 ± 51% -76.2% 2.47 ± 87% sched_debug.cfs_rq:/.removed.runnable_avg.avg
423.17 ± 19% -57.0% 182.17 ± 81% sched_debug.cfs_rq:/.removed.runnable_avg.max
58.41 ± 31% -64.5% 20.76 ± 81% sched_debug.cfs_rq:/.removed.runnable_avg.stddev
10.39 ± 51% -76.2% 2.47 ± 87% sched_debug.cfs_rq:/.removed.util_avg.avg
422.67 ± 19% -56.9% 182.17 ± 81% sched_debug.cfs_rq:/.removed.util_avg.max
58.37 ± 31% -64.4% 20.76 ± 81% sched_debug.cfs_rq:/.removed.util_avg.stddev
326.47 ± 3% -46.7% 173.98 ± 7% sched_debug.cfs_rq:/.runnable_avg.avg
1189 ± 17% -24.8% 894.75 ± 9% sched_debug.cfs_rq:/.runnable_avg.max
300.15 ± 6% -30.8% 207.57 ± 3% sched_debug.cfs_rq:/.runnable_avg.stddev
325.98 ± 3% -46.7% 173.64 ± 7% sched_debug.cfs_rq:/.util_avg.avg
1189 ± 17% -24.9% 893.17 ± 10% sched_debug.cfs_rq:/.util_avg.max
299.75 ± 6% -30.8% 207.34 ± 3% sched_debug.cfs_rq:/.util_avg.stddev
36.35 ± 16% -56.5% 15.81 ± 21% sched_debug.cfs_rq:/.util_est_enqueued.avg
824.33 -41.3% 483.50 ± 5% sched_debug.cfs_rq:/.util_est_enqueued.max
134.88 ± 6% -48.8% 69.12 ± 10% sched_debug.cfs_rq:/.util_est_enqueued.stddev
742830 ± 2% +22.7% 911266 ± 11% sched_debug.cpu.avg_idle.avg
6798 ±154% +2699.7% 190334 ± 60% sched_debug.cpu.avg_idle.min
30009 +100.2% 60091 sched_debug.cpu.clock.avg
30014 +100.2% 60096 sched_debug.cpu.clock.max
30004 +100.3% 60085 sched_debug.cpu.clock.min
29877 +99.2% 59522 sched_debug.cpu.clock_task.avg
29996 +99.0% 59684 sched_debug.cpu.clock_task.max
24935 ± 2% +118.5% 54491 sched_debug.cpu.clock_task.min
299.29 ± 23% -28.7% 213.34 ± 7% sched_debug.cpu.curr->pid.avg
2546 +61.9% 4122 sched_debug.cpu.curr->pid.max
0.14 ± 20% -37.8% 0.08 ± 10% sched_debug.cpu.nr_running.avg
0.34 ± 8% -22.2% 0.27 ± 6% sched_debug.cpu.nr_running.stddev
1483 +111.8% 3142 sched_debug.cpu.nr_switches.avg
8532 ± 20% +50.3% 12820 ± 11% sched_debug.cpu.nr_switches.max
458.00 ± 10% +172.5% 1248 ± 13% sched_debug.cpu.nr_switches.min
1240 ± 14% +47.5% 1830 ± 5% sched_debug.cpu.nr_switches.stddev
0.01 ± 57% +6158.3% 0.65 ± 8% sched_debug.cpu.nr_uninterruptible.avg
-13.67 +51.2% -20.67 sched_debug.cpu.nr_uninterruptible.min
7.01 ± 7% +25.3% 8.78 ± 8% sched_debug.cpu.nr_uninterruptible.stddev
30006 +100.2% 60087 sched_debug.cpu_clk
29495 +101.9% 59559 sched_debug.ktime
30339 +99.2% 60436 sched_debug.sched_clk
12341 ± 5% -11.2% 10959 ± 7% softirqs.CPU0.SCHED
10516 ± 4% -15.9% 8848 ± 6% softirqs.CPU1.RCU
10656 ± 3% -17.0% 8848 ± 6% softirqs.CPU10.RCU
10582 ± 4% -19.2% 8553 ± 5% softirqs.CPU11.RCU
10427 ± 3% -14.7% 8898 ± 9% softirqs.CPU12.RCU
10361 ± 2% -17.1% 8594 ± 7% softirqs.CPU13.RCU
10465 ± 4% -15.6% 8834 ± 5% softirqs.CPU14.RCU
10493 ± 3% -16.6% 8750 ± 4% softirqs.CPU15.RCU
10044 ± 5% -16.9% 8350 ± 4% softirqs.CPU16.RCU
9997 ± 6% -18.1% 8187 ± 2% softirqs.CPU17.RCU
9862 ± 7% -18.4% 8048 ± 3% softirqs.CPU18.RCU
9446 ± 5% -12.7% 8249 ± 7% softirqs.CPU18.SCHED
10033 ± 5% -19.5% 8072 softirqs.CPU19.RCU
10869 ± 10% -16.9% 9030 ± 4% softirqs.CPU2.RCU
9861 ± 5% -16.0% 8286 ± 2% softirqs.CPU20.RCU
10127 ± 7% -16.0% 8508 ± 7% softirqs.CPU21.RCU
10064 ± 7% -18.3% 8226 ± 4% softirqs.CPU22.RCU
10065 ± 5% -21.0% 7955 ± 2% softirqs.CPU23.RCU
9651 ± 6% -13.9% 8314 ± 8% softirqs.CPU27.RCU
10519 ± 10% -23.4% 8055 ± 7% softirqs.CPU28.RCU
10166 ± 9% -20.9% 8044 ± 7% softirqs.CPU29.RCU
10692 ± 3% -16.8% 8896 ± 5% softirqs.CPU3.RCU
9779 ± 9% -14.5% 8358 ± 5% softirqs.CPU30.RCU
9860 ± 4% -17.9% 8092 ± 4% softirqs.CPU31.RCU
10565 ± 6% -13.6% 9132 ± 5% softirqs.CPU33.RCU
10572 ± 8% -13.5% 9145 ± 6% softirqs.CPU35.RCU
10560 ± 8% -15.8% 8890 ± 4% softirqs.CPU37.RCU
10667 ± 4% -21.8% 8339 ± 9% softirqs.CPU4.RCU
9938 ± 4% -12.3% 8712 ± 7% softirqs.CPU4.SCHED
10227 ± 7% -15.4% 8655 ± 4% softirqs.CPU42.RCU
10465 ± 6% -13.1% 9096 ± 8% softirqs.CPU43.RCU
11087 ± 13% -15.0% 9429 ± 8% softirqs.CPU45.RCU
9642 ± 2% -16.6% 8038 ± 8% softirqs.CPU46.SCHED
10998 ± 15% -25.7% 8172 ± 9% softirqs.CPU48.RCU
9964 ± 5% -18.5% 8116 ± 11% softirqs.CPU49.RCU
10461 ± 4% -16.4% 8746 ± 4% softirqs.CPU5.RCU
10071 ± 6% -14.0% 8664 ± 4% softirqs.CPU50.RCU
10389 ± 5% -16.0% 8726 ± 6% softirqs.CPU51.RCU
10872 ± 8% -18.2% 8890 ± 7% softirqs.CPU52.RCU
10574 ± 4% -15.0% 8984 ± 6% softirqs.CPU53.RCU
10505 ± 6% -14.3% 9003 ± 5% softirqs.CPU54.RCU
10362 ± 5% -16.6% 8645 ± 6% softirqs.CPU55.RCU
10612 ± 8% -17.3% 8779 ± 7% softirqs.CPU56.RCU
10255 ± 3% -16.3% 8580 ± 4% softirqs.CPU57.RCU
10390 ± 5% -15.2% 8813 ± 7% softirqs.CPU58.RCU
10671 ± 3% -16.9% 8873 ± 5% softirqs.CPU59.RCU
10631 ± 4% -15.3% 9008 ± 6% softirqs.CPU6.RCU
10206 ± 4% -17.7% 8403 ± 3% softirqs.CPU60.RCU
10376 ± 4% -18.7% 8432 ± 5% softirqs.CPU61.RCU
10258 ± 3% -16.1% 8605 ± 4% softirqs.CPU62.RCU
10352 ± 4% -17.0% 8591 ± 6% softirqs.CPU63.RCU
9925 ± 8% -17.2% 8214 ± 3% softirqs.CPU64.RCU
9913 ± 6% -19.3% 8002 ± 2% softirqs.CPU65.RCU
9628 ± 8% -19.6% 7736 ± 3% softirqs.CPU66.RCU
9923 ± 6% -19.4% 7999 ± 2% softirqs.CPU67.RCU
9700 ± 5% -16.5% 8095 ± 4% softirqs.CPU68.RCU
9727 ± 5% -17.2% 8050 ± 2% softirqs.CPU69.RCU
10720 ± 4% -19.6% 8618 ± 6% softirqs.CPU7.RCU
9775 ± 6% -16.6% 8149 ± 5% softirqs.CPU70.RCU
10177 ± 5% -20.8% 8059 softirqs.CPU71.RCU
9844 ± 5% -17.5% 8117 ± 5% softirqs.CPU72.RCU
9480 ± 6% -17.0% 7871 ± 2% softirqs.CPU73.RCU
9917 ± 8% -17.6% 8170 ± 6% softirqs.CPU75.RCU
9730 ± 6% -17.1% 8068 ± 5% softirqs.CPU76.RCU
9739 ± 7% -17.9% 7994 ± 4% softirqs.CPU77.RCU
10010 ± 19% -18.1% 8193 ± 5% softirqs.CPU78.RCU
10620 ± 5% -16.4% 8883 ± 7% softirqs.CPU8.RCU
10466 ± 6% -14.6% 8935 ± 8% softirqs.CPU80.RCU
10111 ± 4% -12.3% 8870 ± 7% softirqs.CPU81.RCU
10515 ± 7% -16.5% 8785 ± 5% softirqs.CPU85.RCU
10184 ± 9% -13.3% 8832 ± 5% softirqs.CPU87.RCU
10385 ± 4% -16.8% 8645 ± 3% softirqs.CPU9.RCU
10170 ± 5% -10.8% 9072 ± 6% softirqs.CPU95.RCU
987064 ± 4% -15.5% 833756 ± 4% softirqs.RCU
898196 -9.6% 811795 ± 2% softirqs.SCHED
15824 ± 3% +41.4% 22371 softirqs.TIMER
72.44 -8.8 63.63 ± 3% perf-profile.calltrace.cycles-pp.secondary_startup_64_no_verify
71.66 -8.8 62.89 ± 3% perf-profile.calltrace.cycles-pp.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
71.66 -8.8 62.89 ± 3% perf-profile.calltrace.cycles-pp.start_secondary.secondary_startup_64_no_verify
71.60 -8.7 62.86 ± 3% perf-profile.calltrace.cycles-pp.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
23.80 ± 8% -6.5 17.35 ± 9% perf-profile.calltrace.cycles-pp.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter.do_idle.cpu_startup_entry
62.45 ± 4% -5.6 56.85 ± 4% perf-profile.calltrace.cycles-pp.cpuidle_enter.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
18.01 ± 4% -4.4 13.60 ± 5% perf-profile.calltrace.cycles-pp.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter.do_idle
11.56 ± 3% -2.8 8.78 ± 5% perf-profile.calltrace.cycles-pp.asm_call_sysvec_on_stack.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter
11.51 ± 3% -2.8 8.74 ± 5% perf-profile.calltrace.cycles-pp.__sysvec_apic_timer_interrupt.asm_call_sysvec_on_stack.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state
11.25 ± 4% -2.7 8.56 ± 5% perf-profile.calltrace.cycles-pp.hrtimer_interrupt.__sysvec_apic_timer_interrupt.asm_call_sysvec_on_stack.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt
4.45 ± 14% -1.9 2.57 ± 8% perf-profile.calltrace.cycles-pp.loop_control_ioctl.__x64_sys_ioctl.do_syscall_64.entry_SYSCALL_64_after_hwframe
5.88 ± 14% -1.4 4.49 ± 9% perf-profile.calltrace.cycles-pp.__hrtimer_run_queues.hrtimer_interrupt.__sysvec_apic_timer_interrupt.asm_call_sysvec_on_stack.sysvec_apic_timer_interrupt
3.88 ± 11% -1.0 2.85 ± 8% perf-profile.calltrace.cycles-pp.tick_sched_timer.__hrtimer_run_queues.hrtimer_interrupt.__sysvec_apic_timer_interrupt.asm_call_sysvec_on_stack
3.42 ± 8% -1.0 2.44 ± 7% perf-profile.calltrace.cycles-pp.irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter
2.79 ± 9% -0.9 1.93 ± 9% perf-profile.calltrace.cycles-pp.__softirqentry_text_start.asm_call_sysvec_on_stack.do_softirq_own_stack.irq_exit_rcu.sysvec_apic_timer_interrupt
2.80 ± 8% -0.9 1.94 ± 9% perf-profile.calltrace.cycles-pp.asm_call_sysvec_on_stack.do_softirq_own_stack.irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt
2.80 ± 8% -0.8 1.96 ± 9% perf-profile.calltrace.cycles-pp.do_softirq_own_stack.irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state
3.19 ± 12% -0.8 2.42 ± 10% perf-profile.calltrace.cycles-pp.tick_sched_handle.tick_sched_timer.__hrtimer_run_queues.hrtimer_interrupt.__sysvec_apic_timer_interrupt
3.03 ± 9% -0.7 2.29 ± 9% perf-profile.calltrace.cycles-pp.update_process_times.tick_sched_handle.tick_sched_timer.__hrtimer_run_queues.hrtimer_interrupt
1.26 ± 9% -0.5 0.72 ± 5% perf-profile.calltrace.cycles-pp.rebalance_domains.__softirqentry_text_start.asm_call_sysvec_on_stack.do_softirq_own_stack.irq_exit_rcu
1.59 ± 7% -0.4 1.19 ± 8% perf-profile.calltrace.cycles-pp.scheduler_tick.update_process_times.tick_sched_handle.tick_sched_timer.__hrtimer_run_queues
1.43 ± 15% -0.4 1.06 ± 15% perf-profile.calltrace.cycles-pp.irq_enter_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state.cpuidle_enter
1.39 ± 15% -0.4 1.03 ± 15% perf-profile.calltrace.cycles-pp.tick_irq_enter.irq_enter_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt.cpuidle_enter_state
1.07 ± 7% -0.3 0.80 ± 19% perf-profile.calltrace.cycles-pp.ktime_get_update_offsets_now.hrtimer_interrupt.__sysvec_apic_timer_interrupt.asm_call_sysvec_on_stack.sysvec_apic_timer_interrupt
0.68 ± 8% +0.4 1.12 ± 13% perf-profile.calltrace.cycles-pp.debugfs_remove.blk_mq_debugfs_unregister_hctx.blk_mq_exit_queue.blk_cleanup_queue.loop_remove
0.68 ± 8% +0.4 1.12 ± 13% perf-profile.calltrace.cycles-pp.simple_recursive_removal.debugfs_remove.blk_mq_debugfs_unregister_hctx.blk_mq_exit_queue.blk_cleanup_queue
0.68 ± 8% +0.4 1.12 ± 13% perf-profile.calltrace.cycles-pp.blk_mq_exit_queue.blk_cleanup_queue.loop_remove.loop_control_ioctl.__x64_sys_ioctl
0.68 ± 8% +0.4 1.12 ± 13% perf-profile.calltrace.cycles-pp.blk_mq_debugfs_unregister_hctx.blk_mq_exit_queue.blk_cleanup_queue.loop_remove.loop_control_ioctl
0.69 ± 7% +0.5 1.15 ± 12% perf-profile.calltrace.cycles-pp.blk_cleanup_queue.loop_remove.loop_control_ioctl.__x64_sys_ioctl.do_syscall_64
0.32 ±104% +0.5 0.84 ± 7% perf-profile.calltrace.cycles-pp.loop_add.loop_control_ioctl.__x64_sys_ioctl.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.79 ± 6% +0.5 1.34 ± 11% perf-profile.calltrace.cycles-pp.loop_remove.loop_control_ioctl.__x64_sys_ioctl.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.00 +0.9 0.90 ± 16% perf-profile.calltrace.cycles-pp.smp_call_function_single.sync_rcu_exp_select_node_cpus.process_one_work.worker_thread.kthread
0.00 +0.9 0.90 ± 16% perf-profile.calltrace.cycles-pp.sync_rcu_exp_select_node_cpus.process_one_work.worker_thread.kthread.ret_from_fork
3.75 ± 13% +3.6 7.37 ± 14% perf-profile.calltrace.cycles-pp.loop_configure.lo_ioctl.blkdev_ioctl.block_ioctl.__x64_sys_ioctl
3.55 ± 14% +3.8 7.33 ± 14% perf-profile.calltrace.cycles-pp.printk.set_capacity_and_notify.cold.loop_set_size.loop_configure.lo_ioctl
3.55 ± 14% +3.8 7.33 ± 14% perf-profile.calltrace.cycles-pp.vprintk_emit.printk.set_capacity_and_notify.cold.loop_set_size.loop_configure
3.55 ± 14% +3.8 7.33 ± 14% perf-profile.calltrace.cycles-pp.loop_set_size.loop_configure.lo_ioctl.blkdev_ioctl.block_ioctl
3.55 ± 14% +3.8 7.33 ± 14% perf-profile.calltrace.cycles-pp.set_capacity_and_notify.cold.loop_set_size.loop_configure.lo_ioctl.blkdev_ioctl
2.72 ± 13% +4.1 6.80 ± 9% perf-profile.calltrace.cycles-pp.printk.set_capacity_and_notify.cold.loop_set_size.lo_ioctl.blkdev_ioctl
2.72 ± 13% +4.1 6.80 ± 9% perf-profile.calltrace.cycles-pp.vprintk_emit.printk.set_capacity_and_notify.cold.loop_set_size.lo_ioctl
2.72 ± 13% +4.1 6.81 ± 9% perf-profile.calltrace.cycles-pp.loop_set_size.lo_ioctl.blkdev_ioctl.block_ioctl.__x64_sys_ioctl
2.72 ± 13% +4.1 6.81 ± 9% perf-profile.calltrace.cycles-pp.set_capacity_and_notify.cold.loop_set_size.lo_ioctl.blkdev_ioctl.block_ioctl
3.98 ± 9% +4.1 8.11 ± 11% perf-profile.calltrace.cycles-pp.io_serial_in.wait_for_xmitr.serial8250_console_putchar.uart_console_write.serial8250_console_write
5.41 ± 4% +4.5 9.95 ± 12% perf-profile.calltrace.cycles-pp.wait_for_xmitr.serial8250_console_putchar.uart_console_write.serial8250_console_write.console_unlock
5.41 ± 4% +4.5 9.95 ± 12% perf-profile.calltrace.cycles-pp.serial8250_console_putchar.uart_console_write.serial8250_console_write.console_unlock.vprintk_emit
9.42 ± 10% +4.8 14.25 ± 10% perf-profile.calltrace.cycles-pp.blkdev_ioctl.block_ioctl.__x64_sys_ioctl.do_syscall_64.entry_SYSCALL_64_after_hwframe
9.42 ± 10% +4.8 14.25 ± 10% perf-profile.calltrace.cycles-pp.block_ioctl.__x64_sys_ioctl.do_syscall_64.entry_SYSCALL_64_after_hwframe
9.37 ± 10% +4.9 14.23 ± 10% perf-profile.calltrace.cycles-pp.lo_ioctl.blkdev_ioctl.block_ioctl.__x64_sys_ioctl.do_syscall_64
5.68 ± 5% +5.1 10.78 ± 12% perf-profile.calltrace.cycles-pp.uart_console_write.serial8250_console_write.console_unlock.vprintk_emit.printk
5.83 ± 7% +5.5 11.29 ± 12% perf-profile.calltrace.cycles-pp.serial8250_console_write.console_unlock.vprintk_emit.printk.set_capacity_and_notify.cold
6.26 ± 7% +5.8 12.07 ± 12% perf-profile.calltrace.cycles-pp.console_unlock.vprintk_emit.printk.set_capacity_and_notify.cold.loop_set_size
8.32 ± 3% +6.7 15.03 ± 5% perf-profile.calltrace.cycles-pp.memcpy_toio.drm_fb_helper_damage_work.process_one_work.worker_thread.kthread
8.53 ± 3% +7.0 15.49 ± 5% perf-profile.calltrace.cycles-pp.drm_fb_helper_damage_work.process_one_work.worker_thread.kthread.ret_from_fork
8.97 ± 3% +7.7 16.71 ± 4% perf-profile.calltrace.cycles-pp.kthread.ret_from_fork
8.99 ± 3% +7.7 16.73 ± 4% perf-profile.calltrace.cycles-pp.ret_from_fork
8.62 ± 3% +7.9 16.50 ± 4% perf-profile.calltrace.cycles-pp.worker_thread.kthread.ret_from_fork
8.58 ± 3% +7.9 16.47 ± 4% perf-profile.calltrace.cycles-pp.process_one_work.worker_thread.kthread.ret_from_fork
72.44 -8.8 63.63 ± 4% perf-profile.children.cycles-pp.do_idle
72.44 -8.8 63.63 ± 3% perf-profile.children.cycles-pp.secondary_startup_64_no_verify
72.44 -8.8 63.63 ± 3% perf-profile.children.cycles-pp.cpu_startup_entry
71.66 -8.8 62.89 ± 3% perf-profile.children.cycles-pp.start_secondary
8.16 ± 11% -7.3 0.87 ± 27% perf-profile.children.cycles-pp.__mutex_lock
6.08 ± 9% -5.8 0.31 ± 23% perf-profile.children.cycles-pp.mutex_spin_on_owner
63.12 ± 4% -5.6 57.55 ± 4% perf-profile.children.cycles-pp.cpuidle_enter
63.05 ± 4% -5.6 57.49 ± 4% perf-profile.children.cycles-pp.cpuidle_enter_state
21.81 ± 5% -5.4 16.42 ± 6% perf-profile.children.cycles-pp.asm_sysvec_apic_timer_interrupt
18.48 ± 4% -4.5 13.94 ± 5% perf-profile.children.cycles-pp.sysvec_apic_timer_interrupt
15.08 ± 3% -3.8 11.31 ± 4% perf-profile.children.cycles-pp.asm_call_sysvec_on_stack
11.78 ± 3% -2.8 8.94 ± 5% perf-profile.children.cycles-pp.__sysvec_apic_timer_interrupt
11.54 ± 3% -2.8 8.77 ± 5% perf-profile.children.cycles-pp.hrtimer_interrupt
4.45 ± 14% -1.9 2.57 ± 8% perf-profile.children.cycles-pp.loop_control_ioctl
2.01 ± 28% -1.5 0.52 ± 35% perf-profile.children.cycles-pp.osq_lock
6.07 ± 15% -1.4 4.63 ± 8% perf-profile.children.cycles-pp.__hrtimer_run_queues
1.25 ± 30% -1.2 0.10 ± 54% perf-profile.children.cycles-pp.exit_to_user_mode_prepare
1.23 ± 30% -1.1 0.09 ± 57% perf-profile.children.cycles-pp.task_work_run
1.31 ± 32% -1.1 0.18 ± 41% perf-profile.children.cycles-pp.syscall_exit_to_user_mode
1.19 ± 29% -1.1 0.07 ± 77% perf-profile.children.cycles-pp.__fput
1.13 ± 31% -1.1 0.04 ±105% perf-profile.children.cycles-pp.blkdev_close
1.13 ± 31% -1.1 0.04 ±105% perf-profile.children.cycles-pp.blkdev_put
1.10 ± 32% -1.1 0.04 ±105% perf-profile.children.cycles-pp.__blkdev_put
3.96 ± 11% -1.0 2.92 ± 8% perf-profile.children.cycles-pp.tick_sched_timer
3.55 ± 8% -1.0 2.55 ± 8% perf-profile.children.cycles-pp.irq_exit_rcu
0.99 ± 37% -1.0 0.03 ±105% perf-profile.children.cycles-pp.lo_release
2.93 ± 9% -0.9 2.04 ± 11% perf-profile.children.cycles-pp.__softirqentry_text_start
2.92 ± 9% -0.9 2.05 ± 12% perf-profile.children.cycles-pp.do_softirq_own_stack
3.27 ± 12% -0.8 2.48 ± 9% perf-profile.children.cycles-pp.tick_sched_handle
3.12 ± 9% -0.8 2.36 ± 9% perf-profile.children.cycles-pp.update_process_times
0.77 ±172% -0.7 0.05 ± 46% perf-profile.children.cycles-pp.poll_idle
1.28 ± 9% -0.5 0.75 ± 12% perf-profile.children.cycles-pp.rebalance_domains
1.31 ± 15% -0.5 0.78 ± 15% perf-profile.children.cycles-pp.do_sys_open
1.31 ± 15% -0.5 0.78 ± 15% perf-profile.children.cycles-pp.do_sys_openat2
0.67 ± 27% -0.5 0.17 ± 30% perf-profile.children.cycles-pp.__blkdev_get
0.67 ± 27% -0.5 0.17 ± 30% perf-profile.children.cycles-pp.lo_open
1.21 ± 18% -0.5 0.73 ± 15% perf-profile.children.cycles-pp.do_filp_open
1.20 ± 18% -0.5 0.73 ± 15% perf-profile.children.cycles-pp.path_openat
0.70 ± 24% -0.4 0.26 ± 26% perf-profile.children.cycles-pp.blkdev_get_by_dev
0.70 ± 24% -0.4 0.26 ± 25% perf-profile.children.cycles-pp.blkdev_open
0.72 ± 24% -0.4 0.29 ± 23% perf-profile.children.cycles-pp.do_dentry_open
1.64 ± 8% -0.4 1.23 ± 8% perf-profile.children.cycles-pp.scheduler_tick
1.48 ± 17% -0.4 1.08 ± 15% perf-profile.children.cycles-pp.irq_enter_rcu
1.44 ± 16% -0.4 1.05 ± 15% perf-profile.children.cycles-pp.tick_irq_enter
1.10 ± 6% -0.3 0.82 ± 18% perf-profile.children.cycles-pp.ktime_get_update_offsets_now
0.33 ± 17% -0.3 0.05 ± 80% perf-profile.children.cycles-pp.unit_file_find_dropin_paths
0.93 ± 12% -0.2 0.69 ± 9% perf-profile.children.cycles-pp.read_tsc
0.88 ± 13% -0.2 0.64 ± 15% perf-profile.children.cycles-pp.load_balance
0.24 ± 12% -0.2 0.05 ± 79% perf-profile.children.cycles-pp.openat64
0.51 ± 29% -0.2 0.34 ± 10% perf-profile.children.cycles-pp.run_rebalance_domains
0.61 ± 20% -0.1 0.46 ± 9% perf-profile.children.cycles-pp.rcu_sched_clock_irq
0.41 ± 12% -0.1 0.27 ± 12% perf-profile.children.cycles-pp.arch_scale_freq_tick
0.43 ± 8% -0.1 0.30 ± 19% perf-profile.children.cycles-pp.hrtimer_next_event_without
0.12 ± 17% -0.1 0.05 ± 47% perf-profile.children.cycles-pp.open64
0.21 ± 17% -0.1 0.13 ± 17% perf-profile.children.cycles-pp.new_sync_read
0.20 ± 9% -0.1 0.13 ± 27% perf-profile.children.cycles-pp.call_cpuidle
0.14 ± 14% -0.1 0.08 ± 23% perf-profile.children.cycles-pp.cpumask_next_and
0.12 ± 20% -0.1 0.07 ± 47% perf-profile.children.cycles-pp.mmput
0.11 ± 17% -0.0 0.07 ± 47% perf-profile.children.cycles-pp.exit_mmap
0.06 ± 54% +0.1 0.11 ± 20% perf-profile.children.cycles-pp.evict
0.04 ± 80% +0.1 0.10 ± 27% perf-profile.children.cycles-pp.blk_mq_init_queue_data
0.11 ± 33% +0.1 0.18 ± 21% perf-profile.children.cycles-pp.new_inode_pseudo
0.12 ± 31% +0.1 0.19 ± 19% perf-profile.children.cycles-pp.new_inode
0.07 ± 53% +0.1 0.15 ± 15% perf-profile.children.cycles-pp.d_invalidate
0.11 ± 32% +0.1 0.19 ± 16% perf-profile.children.cycles-pp.debugfs_get_inode
0.08 ± 24% +0.1 0.17 ± 51% perf-profile.children.cycles-pp.del_gendisk
0.13 ± 26% +0.1 0.25 ± 11% perf-profile.children.cycles-pp.cpumask_next
0.22 ± 15% +0.1 0.35 ± 7% perf-profile.children.cycles-pp.__dentry_kill
0.29 ± 10% +0.1 0.42 ± 10% perf-profile.children.cycles-pp.dput
0.30 ± 9% +0.2 0.50 ± 20% perf-profile.children.cycles-pp.mnt_get_count
0.31 ± 8% +0.2 0.55 ± 22% perf-profile.children.cycles-pp.mntput_no_expire
0.37 ± 15% +0.3 0.64 ± 13% perf-profile.children.cycles-pp.sys_imageblit
0.37 ± 15% +0.3 0.64 ± 13% perf-profile.children.cycles-pp.drm_fb_helper_sys_imageblit
0.54 ± 26% +0.3 0.85 ± 7% perf-profile.children.cycles-pp.loop_add
0.41 ± 14% +0.3 0.72 ± 13% perf-profile.children.cycles-pp.bit_putcs
0.41 ± 14% +0.3 0.73 ± 13% perf-profile.children.cycles-pp.fbcon_putcs
0.41 ± 15% +0.3 0.74 ± 12% perf-profile.children.cycles-pp.fbcon_redraw
0.42 ± 14% +0.3 0.75 ± 13% perf-profile.children.cycles-pp.lf
0.42 ± 14% +0.3 0.75 ± 13% perf-profile.children.cycles-pp.con_scroll
0.42 ± 14% +0.3 0.75 ± 13% perf-profile.children.cycles-pp.fbcon_scroll
0.45 ± 13% +0.3 0.79 ± 12% perf-profile.children.cycles-pp.vt_console_print
0.68 ± 8% +0.4 1.12 ± 13% perf-profile.children.cycles-pp.blk_mq_exit_queue
0.68 ± 8% +0.4 1.12 ± 13% perf-profile.children.cycles-pp.blk_mq_debugfs_unregister_hctx
0.69 ± 7% +0.5 1.15 ± 12% perf-profile.children.cycles-pp.blk_cleanup_queue
0.70 ± 8% +0.5 1.21 ± 14% perf-profile.children.cycles-pp.debugfs_remove
0.70 ± 8% +0.5 1.21 ± 14% perf-profile.children.cycles-pp.simple_recursive_removal
0.79 ± 6% +0.5 1.34 ± 11% perf-profile.children.cycles-pp.loop_remove
0.28 ± 20% +0.6 0.87 ± 17% perf-profile.children.cycles-pp.io_serial_out
0.00 +0.9 0.94 ± 18% perf-profile.children.cycles-pp.sync_rcu_exp_select_node_cpus
0.00 +0.9 0.94 ± 18% perf-profile.children.cycles-pp.smp_call_function_single
3.75 ± 13% +3.6 7.37 ± 14% perf-profile.children.cycles-pp.loop_configure
4.51 ± 9% +4.3 8.79 ± 11% perf-profile.children.cycles-pp.io_serial_in
5.74 ± 6% +4.6 10.32 ± 12% perf-profile.children.cycles-pp.serial8250_console_putchar
6.00 ± 6% +4.8 10.81 ± 12% perf-profile.children.cycles-pp.wait_for_xmitr
9.43 ± 10% +4.8 14.25 ± 10% perf-profile.children.cycles-pp.blkdev_ioctl
9.43 ± 10% +4.8 14.25 ± 10% perf-profile.children.cycles-pp.block_ioctl
9.38 ± 10% +4.9 14.23 ± 10% perf-profile.children.cycles-pp.lo_ioctl
6.02 ± 6% +5.2 11.17 ± 12% perf-profile.children.cycles-pp.uart_console_write
6.29 ± 6% +5.4 11.69 ± 12% perf-profile.children.cycles-pp.serial8250_console_write
6.74 ± 6% +5.8 12.49 ± 12% perf-profile.children.cycles-pp.console_unlock
8.52 ± 3% +6.9 15.47 ± 5% perf-profile.children.cycles-pp.memcpy_toio
8.53 ± 3% +7.0 15.49 ± 5% perf-profile.children.cycles-pp.drm_fb_helper_damage_work
8.97 ± 3% +7.7 16.71 ± 4% perf-profile.children.cycles-pp.kthread
8.99 ± 3% +7.8 16.74 ± 4% perf-profile.children.cycles-pp.ret_from_fork
6.74 ± 6% +7.8 14.57 ± 10% perf-profile.children.cycles-pp.printk
6.74 ± 6% +7.8 14.57 ± 10% perf-profile.children.cycles-pp.vprintk_emit
6.27 ± 7% +7.9 14.14 ± 10% perf-profile.children.cycles-pp.loop_set_size
6.27 ± 7% +7.9 14.14 ± 10% perf-profile.children.cycles-pp.set_capacity_and_notify.cold
8.62 ± 3% +7.9 16.50 ± 4% perf-profile.children.cycles-pp.worker_thread
8.58 ± 3% +7.9 16.47 ± 4% perf-profile.children.cycles-pp.process_one_work
6.07 ± 9% -5.8 0.30 ± 23% perf-profile.self.cycles-pp.mutex_spin_on_owner
1.99 ± 28% -1.5 0.52 ± 36% perf-profile.self.cycles-pp.osq_lock
0.68 ±172% -0.6 0.05 ± 46% perf-profile.self.cycles-pp.poll_idle
0.94 ± 6% -0.3 0.68 ± 21% perf-profile.self.cycles-pp.ktime_get_update_offsets_now
0.91 ± 13% -0.2 0.67 ± 9% perf-profile.self.cycles-pp.read_tsc
0.52 ± 13% -0.1 0.38 ± 10% perf-profile.self.cycles-pp._raw_spin_unlock_irqrestore
0.40 ± 12% -0.1 0.27 ± 12% perf-profile.self.cycles-pp.arch_scale_freq_tick
0.52 ± 18% -0.1 0.40 ± 9% perf-profile.self.cycles-pp.rcu_sched_clock_irq
0.45 ± 7% -0.1 0.33 ± 20% perf-profile.self.cycles-pp.do_idle
0.23 ± 8% -0.1 0.15 ± 25% perf-profile.self.cycles-pp.__softirqentry_text_start
0.19 ± 12% -0.1 0.12 ± 26% perf-profile.self.cycles-pp.call_cpuidle
0.22 ± 12% -0.1 0.16 ± 14% perf-profile.self.cycles-pp.hrtimer_interrupt
0.04 ± 72% +0.1 0.09 ± 13% perf-profile.self.cycles-pp.cpumask_next
0.19 ± 19% +0.1 0.29 ± 27% perf-profile.self.cycles-pp.mnt_get_count
0.37 ± 15% +0.3 0.64 ± 13% perf-profile.self.cycles-pp.sys_imageblit
0.28 ± 20% +0.6 0.87 ± 17% perf-profile.self.cycles-pp.io_serial_out
0.00 +0.9 0.94 ± 18% perf-profile.self.cycles-pp.smp_call_function_single
0.00 +2.1 2.07 ± 11% perf-profile.self.cycles-pp.vprintk_emit
4.51 ± 9% +4.3 8.79 ± 11% perf-profile.self.cycles-pp.io_serial_in
8.48 ± 3% +6.9 15.39 ± 5% perf-profile.self.cycles-pp.memcpy_toio
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,
Oliver Sang
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