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Date: Wed, 20 Jun 2018 15:32:20 +0800
From: kernel test robot <xiaolong.ye@...el.com>
To: subhra mazumdar <subhra.mazumdar@...cle.com>
Cc: linux-kernel@...r.kernel.org, peterz@...radead.org,
mingo@...hat.com, steven.sistare@...cle.com,
dhaval.giani@...cle.com, rohit.k.jain@...cle.com,
daniel.lezcano@...aro.org, lkp@...org
Subject: [lkp-robot] [sched] 8dd662615c: reaim.jobs_per_min -3.3% regression
Greeting,
FYI, we noticed a -3.3% regression of reaim.jobs_per_min due to commit:
commit: 8dd662615c7a4dd4347d89d2f5647cba9c51c2af ("sched: limit cpu search in select_idle_cpu")
url: https://github.com/0day-ci/linux/commits/subhra-mazumdar/Improve-scheduler-scalability-for-fast-path/20180613-015158
in testcase: reaim
on test machine: 72 threads Intel(R) Xeon(R) CPU E5-2699 v3 @ 2.30GHz with 128G memory
with following parameters:
runtime: 300s
nr_task: 1600%
test: new_fserver
cpufreq_governor: performance
test-description: REAIM is an updated and improved version of AIM 7 benchmark.
test-url: https://sourceforge.net/projects/re-aim-7/
In addition to that, the commit also has significant impact on the following tests:
+------------------+-----------------------------------------------------------------------+
| testcase: change | hackbench: hackbench.throughput 12.7% improvement |
| test machine | 72 threads Intel(R) Xeon(R) CPU E5-2699 v3 @ 2.30GHz with 128G memory |
| test parameters | cpufreq_governor=performance |
| | ipc=pipe |
| | iterations=12 |
| | mode=process |
| | nr_threads=50% |
+------------------+-----------------------------------------------------------------------+
Details are as below:
-------------------------------------------------------------------------------------------------->
To reproduce:
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
bin/lkp install job.yaml # job file is attached in this email
bin/lkp run job.yaml
=========================================================================================
compiler/cpufreq_governor/kconfig/nr_task/rootfs/runtime/tbox_group/test/testcase:
gcc-7/performance/x86_64-rhel-7.2/1600%/debian-x86_64-2018-04-03.cgz/300s/lkp-hsw-ep2/new_fserver/reaim
commit:
2539fc82aa ("sched/fair: Update util_est before updating schedutil")
8dd662615c ("sched: limit cpu search in select_idle_cpu")
2539fc82aa9b07d9 8dd662615c7a4dd4347d89d2f5
---------------- --------------------------
%stddev %change %stddev
\ | \
938731 -3.3% 908031 reaim.jobs_per_min
814.87 -3.3% 788.22 reaim.jobs_per_min_child
948046 -3.3% 916622 reaim.max_jobs_per_min
141.74 -3.7% 136.50 reaim.child_systime
297.72 -2.0% 291.73 reaim.child_utime
7.22 +3.4% 7.46 reaim.parent_time
14.70 -3.8% 14.14 reaim.std_dev_percent
5897031 +4.7% 6174085 reaim.time.involuntary_context_switches
7.527e+08 -3.1% 7.291e+08 reaim.time.minor_page_faults
4709 -5.0% 4472 reaim.time.percent_of_cpu_this_job_got
4683 -6.6% 4373 reaim.time.system_time
9825 -5.0% 9336 reaim.time.user_time
13502630 ± 2% -12.2% 11859024 reaim.time.voluntary_context_switches
3801600 -3.0% 3686400 reaim.workload
0.00 ± 9% +0.0 0.00 ± 16% mpstat.cpu.iowait%
125038 -8.9% 113866 vmstat.system.cs
76044 +2.6% 78021 vmstat.system.in
86274 ± 6% -16.7% 71862 ± 9% numa-vmstat.node1.nr_active_anon
32499 ± 22% -28.7% 23186 ± 30% numa-vmstat.node1.nr_slab_unreclaimable
86274 ± 6% -16.7% 71862 ± 9% numa-vmstat.node1.nr_zone_active_anon
344856 ± 6% -16.6% 287582 ± 9% numa-meminfo.node1.Active
344854 ± 6% -16.6% 287580 ± 9% numa-meminfo.node1.Active(anon)
129963 ± 22% -28.7% 92645 ± 30% numa-meminfo.node1.SUnreclaim
157613 ± 17% -22.8% 121642 ± 24% numa-meminfo.node1.Slab
106884 -19.6% 85936 slabinfo.kmalloc-32.active_objs
836.25 -19.8% 670.75 slabinfo.kmalloc-32.active_slabs
107116 -19.8% 85955 slabinfo.kmalloc-32.num_objs
836.25 -19.8% 670.75 slabinfo.kmalloc-32.num_slabs
7.012e+08 -3.1% 6.792e+08 proc-vmstat.numa_hit
7.012e+08 -3.1% 6.792e+08 proc-vmstat.numa_local
14167 +3.0% 14590 proc-vmstat.numa_other
7.123e+08 -3.2% 6.894e+08 proc-vmstat.pgalloc_normal
7.539e+08 -3.1% 7.303e+08 proc-vmstat.pgfault
7.123e+08 -3.2% 6.894e+08 proc-vmstat.pgfree
262.50 ± 13% +18.6% 311.29 ± 6% sched_debug.cfs_rq:/.removed.util_avg.max
497313 ± 12% +26.5% 629284 ± 4% sched_debug.cpu.avg_idle.avg
33703 ± 55% +400.3% 168620 ± 51% sched_debug.cpu.avg_idle.min
38227 ± 5% +18.7% 45393 ± 2% sched_debug.cpu.curr->pid.max
10018 ± 18% +41.9% 14220 ± 16% sched_debug.cpu.curr->pid.stddev
309090 ± 26% -51.9% 148822 ± 45% sched_debug.cpu.load.max
2427 ± 18% -31.8% 1656 ± 12% sched_debug.cpu.sched_goidle.stddev
45654 ± 3% +22.4% 55880 ± 16% sched_debug.cpu.ttwu_local.max
2.396e+08 ± 5% -35.0% 1.557e+08 ± 5% cpuidle.C1.time
3257365 ± 7% -42.8% 1863490 ± 8% cpuidle.C1.usage
2.834e+08 -29.8% 1.99e+08 cpuidle.C1E.time
2727675 -31.3% 1874186 cpuidle.C1E.usage
5580441 -9.4% 5057704 cpuidle.C3.usage
5.676e+09 +12.9% 6.41e+09 cpuidle.C6.time
6613043 +21.6% 8042531 cpuidle.C6.usage
1459318 ± 3% -10.8% 1301821 ± 2% cpuidle.POLL.time
61461 ± 7% -29.9% 43098 ± 6% cpuidle.POLL.usage
1853 -4.8% 1765 turbostat.Avg_MHz
3252668 ± 7% -42.9% 1857319 ± 8% turbostat.C1
1.07 ± 4% -0.4 0.70 ± 5% turbostat.C1%
2725753 -31.3% 1872752 turbostat.C1E
1.27 -0.4 0.90 turbostat.C1E%
5579952 -9.4% 5057162 turbostat.C3
6610452 +21.6% 8040209 turbostat.C6
25.48 +3.4 28.92 turbostat.C6%
15.88 +21.7% 19.33 turbostat.CPU%c1
0.26 ± 3% +45.7% 0.38 ± 2% turbostat.CPU%c3
5.215e+12 -3.4% 5.039e+12 perf-stat.branch-instructions
1.23 +0.0 1.25 perf-stat.branch-miss-rate%
6.392e+10 -1.4% 6.304e+10 perf-stat.branch-misses
6.68 +0.1 6.81 perf-stat.cache-miss-rate%
1.894e+11 -3.3% 1.831e+11 perf-stat.cache-references
38848096 -9.5% 35176187 perf-stat.context-switches
1.23 -2.1% 1.20 perf-stat.cpi
4.1e+13 -5.3% 3.884e+13 perf-stat.cpu-cycles
11806401 -10.8% 10528657 perf-stat.cpu-migrations
1.092e+10 ± 4% -11.2% 9.699e+09 ± 5% perf-stat.dTLB-load-misses
6.639e+12 -3.3% 6.417e+12 perf-stat.dTLB-loads
2.865e+12 -3.2% 2.773e+12 perf-stat.dTLB-stores
54.31 -0.4 53.86 perf-stat.iTLB-load-miss-rate%
6.194e+09 -5.2% 5.875e+09 perf-stat.iTLB-load-misses
5.212e+09 -3.4% 5.033e+09 perf-stat.iTLB-loads
3.331e+13 -3.2% 3.224e+13 perf-stat.instructions
0.81 +2.2% 0.83 perf-stat.ipc
7.453e+08 -3.1% 7.22e+08 perf-stat.minor-faults
87.48 +2.1 89.56 perf-stat.node-load-miss-rate%
1.141e+09 -17.5% 9.416e+08 ± 2% perf-stat.node-loads
55.05 +1.3 56.38 perf-stat.node-store-miss-rate%
1.561e+09 -4.9% 1.485e+09 perf-stat.node-stores
7.453e+08 -3.1% 7.22e+08 perf-stat.page-faults
1.88 ± 13% -0.8 1.10 ± 7% perf-profile.calltrace.cycles-pp.down_write.path_openat.do_filp_open.do_sys_open.do_syscall_64
1.73 ± 14% -0.7 1.00 ± 7% perf-profile.calltrace.cycles-pp.call_rwsem_down_write_failed.down_write.path_openat.do_filp_open.do_sys_open
1.73 ± 14% -0.7 1.00 ± 7% perf-profile.calltrace.cycles-pp.rwsem_down_write_failed.call_rwsem_down_write_failed.down_write.path_openat.do_filp_open
7.29 ± 2% -0.7 6.61 ± 3% perf-profile.calltrace.cycles-pp.path_openat.do_filp_open.do_sys_open.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.22 ± 17% -0.6 0.63 ± 6% perf-profile.calltrace.cycles-pp.osq_lock.rwsem_down_write_failed.call_rwsem_down_write_failed.down_write.path_openat
0.70 ± 6% -0.3 0.41 ± 58% perf-profile.calltrace.cycles-pp.__split_vma.do_munmap.__x64_sys_brk.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.10 ± 5% -0.3 0.82 ± 3% perf-profile.calltrace.cycles-pp.elf_map.load_elf_binary.search_binary_handler.do_execveat_common.__x64_sys_execve
1.91 ± 4% -0.3 1.63 ± 4% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.release_pages.tlb_flush_mmu_free.arch_tlb_finish_mmu.tlb_finish_mmu
1.41 ± 5% -0.3 1.14 ± 3% perf-profile.calltrace.cycles-pp.apic_timer_interrupt.cpuidle_enter_state.do_idle.cpu_startup_entry.start_secondary
1.40 ± 5% -0.3 1.14 ± 3% perf-profile.calltrace.cycles-pp.smp_apic_timer_interrupt.apic_timer_interrupt.cpuidle_enter_state.do_idle.cpu_startup_entry
0.94 ± 3% -0.3 0.69 ± 4% perf-profile.calltrace.cycles-pp.up_write.path_openat.do_filp_open.do_sys_open.do_syscall_64
1.75 ± 4% -0.3 1.50 ± 4% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.release_pages.tlb_flush_mmu_free.arch_tlb_finish_mmu
0.87 -0.2 0.64 ± 5% perf-profile.calltrace.cycles-pp.rwsem_wake.call_rwsem_wake.up_write.path_openat.do_filp_open
0.87 -0.2 0.64 ± 5% perf-profile.calltrace.cycles-pp.call_rwsem_wake.up_write.path_openat.do_filp_open.do_sys_open
2.12 ± 3% -0.1 2.01 ± 2% perf-profile.calltrace.cycles-pp.setlocale
0.75 ± 6% -0.1 0.67 ± 4% perf-profile.calltrace.cycles-pp.iterate_dir.__x64_sys_getdents.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.70 ± 6% -0.1 0.62 ± 3% perf-profile.calltrace.cycles-pp.dcache_readdir.iterate_dir.__x64_sys_getdents.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.76 ± 6% -0.1 0.68 ± 4% perf-profile.calltrace.cycles-pp.__x64_sys_getdents.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.89 ± 3% -0.1 0.83 ± 3% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.setlocale
0.88 ± 2% -0.1 0.82 ± 3% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.setlocale
0.69 -0.0 0.66 ± 3% perf-profile.calltrace.cycles-pp.smpboot_thread_fn.kthread.ret_from_fork
0.77 ± 4% +0.1 0.85 ± 4% perf-profile.calltrace.cycles-pp.smp_apic_timer_interrupt.apic_timer_interrupt
0.79 ± 5% +0.1 0.87 ± 4% perf-profile.calltrace.cycles-pp.apic_timer_interrupt
23.64 +2.1 25.74 perf-profile.calltrace.cycles-pp.secondary_startup_64
23.36 +2.4 25.73 perf-profile.calltrace.cycles-pp.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64
23.36 +2.4 25.73 perf-profile.calltrace.cycles-pp.cpu_startup_entry.start_secondary.secondary_startup_64
23.36 +2.4 25.73 perf-profile.calltrace.cycles-pp.start_secondary.secondary_startup_64
22.43 +2.6 25.01 perf-profile.calltrace.cycles-pp.cpuidle_enter_state.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64
20.81 +3.0 23.78 perf-profile.calltrace.cycles-pp.intel_idle.cpuidle_enter_state.do_idle.cpu_startup_entry.start_secondary
46.88 ± 2% -1.8 45.06 perf-profile.children.cycles-pp.do_syscall_64
47.07 ± 2% -1.8 45.25 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
7.94 ± 3% -0.8 7.11 ± 2% perf-profile.children.cycles-pp.path_openat
7.95 ± 3% -0.8 7.14 ± 2% perf-profile.children.cycles-pp.do_filp_open
8.14 ± 3% -0.8 7.37 ± 3% perf-profile.children.cycles-pp.do_sys_open
4.23 ± 3% -0.7 3.54 ± 5% perf-profile.children.cycles-pp.down_write
3.33 ± 6% -0.7 2.67 ± 7% perf-profile.children.cycles-pp.rwsem_down_write_failed
3.34 ± 6% -0.7 2.69 ± 7% perf-profile.children.cycles-pp.call_rwsem_down_write_failed
2.08 ± 10% -0.6 1.50 ± 9% perf-profile.children.cycles-pp.osq_lock
2.86 ± 2% -0.2 2.69 ± 2% perf-profile.children.cycles-pp.apic_timer_interrupt
2.84 ± 2% -0.2 2.67 ± 2% perf-profile.children.cycles-pp.smp_apic_timer_interrupt
0.91 ± 3% -0.2 0.74 ± 5% perf-profile.children.cycles-pp.do_unlinkat
1.28 ± 3% -0.2 1.12 ± 5% perf-profile.children.cycles-pp.hrtimer_interrupt
1.06 ± 3% -0.1 0.94 ± 5% perf-profile.children.cycles-pp.__hrtimer_run_queues
0.41 ± 7% -0.1 0.29 ± 10% perf-profile.children.cycles-pp.menu_select
0.60 ± 5% -0.1 0.48 ± 4% perf-profile.children.cycles-pp.do_linkat
0.60 ± 5% -0.1 0.49 ± 4% perf-profile.children.cycles-pp.__x64_sys_link
2.12 ± 3% -0.1 2.01 ± 2% perf-profile.children.cycles-pp.setlocale
1.17 -0.1 1.07 ± 2% perf-profile.children.cycles-pp.call_rwsem_wake
1.18 -0.1 1.07 ± 2% perf-profile.children.cycles-pp.rwsem_wake
0.34 ± 8% -0.1 0.23 ± 4% perf-profile.children.cycles-pp.filename_create
1.75 -0.1 1.65 perf-profile.children.cycles-pp.up_write
0.73 -0.1 0.65 ± 7% perf-profile.children.cycles-pp.tick_sched_timer
0.89 ± 3% -0.1 0.80 ± 2% perf-profile.children.cycles-pp.wake_up_q
0.72 ± 7% -0.1 0.64 ± 4% perf-profile.children.cycles-pp.dcache_readdir
1.14 -0.1 1.05 perf-profile.children.cycles-pp.exit_to_usermode_loop
0.75 ± 6% -0.1 0.67 ± 4% perf-profile.children.cycles-pp.iterate_dir
0.76 ± 6% -0.1 0.68 ± 4% perf-profile.children.cycles-pp.__x64_sys_getdents
0.98 -0.1 0.91 ± 2% perf-profile.children.cycles-pp.copy_strings
0.19 ± 16% -0.1 0.12 ± 11% perf-profile.children.cycles-pp.tick_nohz_get_sleep_length
0.63 ± 4% -0.1 0.56 ± 3% perf-profile.children.cycles-pp.__fput
0.74 ± 4% -0.1 0.67 perf-profile.children.cycles-pp.task_work_run
0.31 ± 5% -0.1 0.24 ± 5% perf-profile.children.cycles-pp.run_ksoftirqd
0.44 ± 4% -0.1 0.37 ± 5% perf-profile.children.cycles-pp.__might_fault
0.27 ± 19% -0.1 0.21 ± 11% perf-profile.children.cycles-pp.memcpy_erms
0.16 ± 22% -0.1 0.10 ± 27% perf-profile.children.cycles-pp.ktime_get
0.16 ± 14% -0.1 0.10 ± 10% perf-profile.children.cycles-pp.tick_nohz_next_event
0.66 -0.1 0.61 ± 6% perf-profile.children.cycles-pp.tick_sched_handle
1.04 ± 4% -0.1 0.99 perf-profile.children.cycles-pp.kmem_cache_free
0.41 ± 7% -0.0 0.36 ± 6% perf-profile.children.cycles-pp._copy_to_user
0.43 ± 5% -0.0 0.39 ± 4% perf-profile.children.cycles-pp.page_add_file_rmap
0.21 ± 7% -0.0 0.17 ± 2% perf-profile.children.cycles-pp.schedule_idle
0.51 -0.0 0.47 perf-profile.children.cycles-pp.do_signal
0.65 -0.0 0.61 ± 3% perf-profile.children.cycles-pp.get_empty_filp
0.14 ± 7% -0.0 0.11 ± 6% perf-profile.children.cycles-pp.selinux_vm_enough_memory
0.21 ± 2% -0.0 0.17 ± 6% perf-profile.children.cycles-pp.rebalance_domains
0.10 ± 11% -0.0 0.07 ± 17% perf-profile.children.cycles-pp.get_next_timer_interrupt
0.36 ± 4% -0.0 0.33 ± 2% perf-profile.children.cycles-pp.do_open_execat
0.14 ± 6% -0.0 0.11 ± 6% perf-profile.children.cycles-pp.__slab_alloc
0.21 ± 8% -0.0 0.18 ± 3% perf-profile.children.cycles-pp.__pmd_alloc
0.16 ± 6% -0.0 0.14 ± 3% perf-profile.children.cycles-pp.filp_close
0.17 ± 6% -0.0 0.15 ± 10% perf-profile.children.cycles-pp.get_user_arg_ptr
0.16 ± 5% -0.0 0.13 ± 6% perf-profile.children.cycles-pp.free_pcppages_bulk
0.12 ± 10% -0.0 0.10 ± 7% perf-profile.children.cycles-pp.___slab_alloc
0.24 ± 5% -0.0 0.22 perf-profile.children.cycles-pp.copy_strings_kernel
0.10 ± 8% -0.0 0.08 ± 5% perf-profile.children.cycles-pp.irq_enter
0.09 ± 4% -0.0 0.08 ± 5% perf-profile.children.cycles-pp.run_rebalance_domains
0.06 -0.0 0.05 perf-profile.children.cycles-pp.__d_lookup_done
0.10 ± 4% +0.0 0.12 ± 5% perf-profile.children.cycles-pp.__update_load_avg_se
0.07 ± 12% +0.0 0.09 perf-profile.children.cycles-pp.__task_pid_nr_ns
0.34 ± 2% +0.0 0.36 ± 2% perf-profile.children.cycles-pp.unlock_page
0.04 ± 58% +0.0 0.07 ± 10% perf-profile.children.cycles-pp.rwsem_down_read_failed
0.04 ± 58% +0.0 0.07 ± 10% perf-profile.children.cycles-pp.call_rwsem_down_read_failed
0.04 ± 58% +0.0 0.08 ± 10% perf-profile.children.cycles-pp.cpumask_next_and
0.00 +0.1 0.05 ± 8% perf-profile.children.cycles-pp.reschedule_interrupt
0.00 +0.1 0.06 ± 11% perf-profile.children.cycles-pp.find_next_and_bit
1.73 +0.1 1.80 perf-profile.children.cycles-pp.flush_tlb_func_common
1.14 +0.1 1.21 ± 2% perf-profile.children.cycles-pp.rcu_process_callbacks
0.43 ± 6% +0.1 0.51 ± 4% perf-profile.children.cycles-pp.wait4
0.22 ± 8% +0.1 0.30 ± 3% perf-profile.children.cycles-pp.do_task_dead
0.62 ± 5% +0.1 0.71 ± 4% perf-profile.children.cycles-pp.kernel_wait4
0.61 ± 5% +0.1 0.69 ± 4% perf-profile.children.cycles-pp.do_wait
0.62 ± 5% +0.1 0.71 ± 4% perf-profile.children.cycles-pp.__do_sys_wait4
0.26 ± 3% +0.1 0.36 ± 4% perf-profile.children.cycles-pp._atomic_dec_and_lock
0.28 ± 5% +0.1 0.39 ± 3% perf-profile.children.cycles-pp.free_uid
0.34 ± 4% +0.1 0.47 ± 2% perf-profile.children.cycles-pp.put_cred_rcu
0.34 ± 2% +0.2 0.51 ± 3% perf-profile.children.cycles-pp.find_busiest_group
0.77 ± 2% +0.2 0.95 perf-profile.children.cycles-pp.schedule
1.32 +0.2 1.54 perf-profile.children.cycles-pp.__schedule
0.61 ± 4% +0.2 0.83 ± 2% perf-profile.children.cycles-pp.load_balance
0.62 ± 3% +0.3 0.89 perf-profile.children.cycles-pp.pick_next_task_fair
23.65 +2.1 25.75 perf-profile.children.cycles-pp.do_idle
23.64 +2.1 25.74 perf-profile.children.cycles-pp.cpu_startup_entry
23.64 +2.1 25.74 perf-profile.children.cycles-pp.secondary_startup_64
22.75 +2.3 25.07 perf-profile.children.cycles-pp.cpuidle_enter_state
23.36 +2.4 25.73 perf-profile.children.cycles-pp.start_secondary
21.06 +2.7 23.79 perf-profile.children.cycles-pp.intel_idle
2.07 ± 10% -0.6 1.48 ± 9% perf-profile.self.cycles-pp.osq_lock
0.27 ± 18% -0.1 0.21 ± 9% perf-profile.self.cycles-pp.memcpy_erms
0.11 ± 40% -0.1 0.05 ± 74% perf-profile.self.cycles-pp.ktime_get
0.16 ± 5% -0.0 0.12 ± 19% perf-profile.self.cycles-pp.menu_select
0.36 ± 4% -0.0 0.32 ± 4% perf-profile.self.cycles-pp.page_add_file_rmap
0.48 -0.0 0.46 ± 2% perf-profile.self.cycles-pp.__slab_free
0.12 ± 7% -0.0 0.10 ± 5% perf-profile.self.cycles-pp.cpuidle_enter_state
0.09 ± 7% -0.0 0.07 ± 12% perf-profile.self.cycles-pp.free_pcppages_bulk
0.07 ± 11% -0.0 0.05 ± 8% perf-profile.self.cycles-pp.do_idle
0.23 ± 4% -0.0 0.21 ± 4% perf-profile.self.cycles-pp.update_load_avg
0.15 ± 6% -0.0 0.13 ± 3% perf-profile.self.cycles-pp.do_dentry_open
0.08 ± 12% -0.0 0.06 ± 6% perf-profile.self.cycles-pp.update_rq_clock
0.08 ± 6% -0.0 0.06 ± 6% perf-profile.self.cycles-pp.security_inode_permission
0.07 ± 6% +0.0 0.08 ± 5% perf-profile.self.cycles-pp.load_balance
0.34 ± 2% +0.0 0.36 ± 3% perf-profile.self.cycles-pp.unlock_page
0.07 ± 12% +0.0 0.09 perf-profile.self.cycles-pp.__task_pid_nr_ns
0.15 ± 3% +0.0 0.17 ± 4% perf-profile.self.cycles-pp.anon_vma_clone
0.08 ± 13% +0.0 0.12 ± 13% perf-profile.self.cycles-pp.try_to_wake_up
0.01 ±173% +0.0 0.06 ± 11% perf-profile.self.cycles-pp.pick_next_task_fair
0.00 +0.1 0.06 ± 11% perf-profile.self.cycles-pp.find_next_and_bit
0.26 ± 3% +0.1 0.36 ± 4% perf-profile.self.cycles-pp._atomic_dec_and_lock
0.28 ± 2% +0.1 0.42 ± 4% perf-profile.self.cycles-pp.find_busiest_group
21.05 +2.7 23.79 perf-profile.self.cycles-pp.intel_idle
reaim.parent_time
7.5 +-+------------------------------------------------------O-----------+
O O O O O O O |
7.45 +-O O O O O O O O O |
| O O O O O O O O |
7.4 +-+ |
| |
7.35 +-+ |
| |
7.3 +-+ |
| +. .+ .+.. +.. |
7.25 +-+ +. + +. + .+..+ +. + + |
|: + +..+ + +.+..+.+ +.+..+.+. +. + + |
7.2 +-++ +.. + +..+ + +|
| + + + |
7.15 +-+------------------------------------------------------------------+
reaim.child_utime
300 +-+-------------------------------------------------------------------+
| .+. .+ |
299 +-+ .+.. .+.. .+.+. +. + |
298 +-+.. .+ +.+..+ + +. .+. .+.+..+. .+..+. .+.|
| +.+..+ +. +. + +. |
297 +-+ |
296 +-+ |
| |
295 +-+ |
294 +-+ O |
| O O O O O O |
293 O-+ O O O O O O O O O O O O O |
292 +-+ O |
| O O O |
291 +-+-------------------------------------------------------------------+
reaim.jobs_per_min
945000 +-+----------------------------------------------------------------+
|: : .+.+ .+ + |
940000 +-+ : +.. .+.+..+.+ +.+.+..+ + .+ + .. +|
935000 +-+ : .+.+.. + .+. .+ : + +. + |
| + +.+.+ + +. : + |
930000 +-+ + |
925000 +-+ |
| |
920000 +-+ |
915000 +-+ |
| O O O O O O O |
910000 +-O O O O O O O O O |
905000 O-+ O O O O O O O |
| O |
900000 +-+----------------------------------------------------------------+
reaim.jobs_per_min_child
820 +-+-------------------------------------------------------------------+
| :: .+. : + |
815 +-+ : +.. .+. .+ +..+.+..+ : .+..+. .. +|
|: : .+..+ : .+. +. : : + + |
810 +-+ + + .+.. : +.+..+.+ : : |
| + + + |
805 +-+ |
| |
800 +-+ |
| |
795 +-+ |
| O O O O O O O |
790 +-O O O O O O O O |
O O O O O O O |
785 +-+--O----O-----------------------------------------------O-----------+
reaim.time.percent_of_cpu_this_job_got
4750 +-+------------------------------------------------------------------+
|.+.. .+.+.. .+..+.+.+..+.+. .+. .+.. .+.|
4700 +-+ .+..+.+.+..+ + +..+.+..+.+.+. + +.+. |
| + |
| |
4650 +-+ |
| |
4600 +-+ |
| |
4550 +-+ |
O O O O O O O O O O O O O |
| O O O O |
4500 +-+ O O O O |
| O O O O |
4450 +-+------------------------------------------------------------------+
reaim.time.involuntary_context_switches
6.2e+06 +-+--------------------------------------------O-----------------+
6.15e+06 +-+ O O O |
| O |
6.1e+06 O-O O O O O O O O O O O |
6.05e+06 +-+ O O O O O O O O |
| |
6e+06 +-+ |
5.95e+06 +-+ |
5.9e+06 +-+. .+. .+. .+.+.. .+ .+. .+.+..+.+.|
| +..+ + +.+.+.+. + + : +..+.+.+.+. + |
5.85e+06 +-+ : : : : |
5.8e+06 +-+ : : : : |
| : : :: |
5.75e+06 +-+ :: + |
5.7e+06 +-+--------------------------------------------------------------+
[*] bisect-good sample
[O] bisect-bad sample
***************************************************************************************************
lkp-hsw-ep4: 72 threads Intel(R) Xeon(R) CPU E5-2699 v3 @ 2.30GHz with 128G memory
=========================================================================================
compiler/cpufreq_governor/ipc/iterations/kconfig/mode/nr_threads/rootfs/tbox_group/testcase:
gcc-7/performance/pipe/12/x86_64-rhel-7.2/process/50%/debian-x86_64-2018-04-03.cgz/lkp-hsw-ep4/hackbench
commit:
2539fc82aa ("sched/fair: Update util_est before updating schedutil")
8dd662615c ("sched: limit cpu search in select_idle_cpu")
2539fc82aa9b07d9 8dd662615c7a4dd4347d89d2f5
---------------- --------------------------
%stddev %change %stddev
\ | \
123935 +12.7% 139696 hackbench.throughput
818.39 -11.3% 726.18 hackbench.time.elapsed_time
818.39 -11.3% 726.18 hackbench.time.elapsed_time.max
4.18e+09 ± 2% -21.1% 3.297e+09 hackbench.time.involuntary_context_switches
52401 -11.6% 46313 hackbench.time.system_time
6201 -9.6% 5606 hackbench.time.user_time
6.222e+09 -12.1% 5.467e+09 hackbench.time.voluntary_context_switches
0.64 ± 3% +0.2 0.81 ± 7% mpstat.cpu.idle%
2871 ± 6% +8.7% 3120 ± 4% slabinfo.sock_inode_cache.active_objs
2871 ± 6% +8.7% 3120 ± 4% slabinfo.sock_inode_cache.num_objs
9642032 ± 4% -14.5% 8247745 ± 2% softirqs.RCU
831999 ± 2% +13.0% 939983 softirqs.SCHED
12709169 -5.0% 12067441 vmstat.system.cs
973111 +16.2% 1130820 vmstat.system.in
66696250 ± 5% +49.2% 99499793 ± 4% cpuidle.C1.time
11551951 ± 6% +96.9% 22743914 ± 3% cpuidle.C1.usage
844303 ± 6% +139.2% 2019174 ± 2% cpuidle.POLL.time
182674 ± 8% +129.8% 419855 ± 3% cpuidle.POLL.usage
27699444 ± 5% +28.2% 35505978 ± 2% numa-numastat.node0.local_node
27702926 ± 5% +28.2% 35511779 ± 2% numa-numastat.node0.numa_hit
30815427 +18.8% 36597997 numa-numastat.node1.local_node
30826044 +18.8% 36606343 numa-numastat.node1.numa_hit
14003985 ± 6% +30.7% 18298916 ± 3% numa-vmstat.node0.numa_hit
14000286 ± 6% +30.7% 18292925 ± 3% numa-vmstat.node0.numa_local
15401529 +20.7% 18585831 ± 2% numa-vmstat.node1.numa_hit
15255090 +20.9% 18441285 ± 2% numa-vmstat.node1.numa_local
11550825 ± 6% +96.9% 22743029 ± 3% turbostat.C1
0.11 ± 4% +0.1 0.19 ± 4% turbostat.C1%
0.35 ± 3% +0.1 0.44 ± 14% turbostat.C6%
0.47 ± 2% +20.9% 0.57 ± 4% turbostat.CPU%c1
0.23 ± 3% +27.7% 0.30 ± 15% turbostat.CPU%c6
47567 +1.0% 48036 proc-vmstat.nr_slab_unreclaimable
58537822 ± 2% +23.2% 72134162 proc-vmstat.numa_hit
58523716 ± 2% +23.2% 72120007 proc-vmstat.numa_local
58726400 ± 2% +23.1% 72307125 proc-vmstat.pgalloc_normal
2444733 -7.2% 2268341 proc-vmstat.pgfault
58669621 ± 2% +23.2% 72252852 proc-vmstat.pgfree
1.45e+13 -10.9% 1.292e+13 perf-stat.branch-instructions
1.78 +0.1 1.85 perf-stat.branch-miss-rate%
2.579e+11 -7.2% 2.393e+11 perf-stat.branch-misses
0.87 ± 5% -0.1 0.79 ± 4% perf-stat.cache-miss-rate%
8.286e+09 ± 7% -23.0% 6.378e+09 ± 4% perf-stat.cache-misses
9.472e+11 -14.7% 8.078e+11 perf-stat.cache-references
1.043e+10 -15.6% 8.797e+09 perf-stat.context-switches
1.424e+14 -11.2% 1.264e+14 perf-stat.cpu-cycles
2.421e+09 ± 3% -31.3% 1.663e+09 perf-stat.cpu-migrations
1.71 ± 3% -0.3 1.43 ± 12% perf-stat.dTLB-load-miss-rate%
3.701e+11 ± 2% -25.0% 2.774e+11 ± 12% perf-stat.dTLB-load-misses
2.126e+13 -9.7% 1.919e+13 perf-stat.dTLB-loads
0.11 ± 8% -0.0 0.09 ± 13% perf-stat.dTLB-store-miss-rate%
1.503e+10 ± 7% -28.0% 1.082e+10 ± 13% perf-stat.dTLB-store-misses
1.313e+13 -9.5% 1.187e+13 perf-stat.dTLB-stores
55.10 +1.2 56.30 perf-stat.iTLB-load-miss-rate%
1.164e+11 ± 2% -10.3% 1.044e+11 perf-stat.iTLB-load-misses
9.48e+10 -14.5% 8.103e+10 perf-stat.iTLB-loads
7.393e+13 -10.7% 6.605e+13 perf-stat.instructions
2408870 -7.2% 2235758 perf-stat.minor-faults
5.089e+09 ± 8% -25.3% 3.801e+09 ± 4% perf-stat.node-load-misses
1.95e+09 ± 7% -18.7% 1.585e+09 ± 3% perf-stat.node-store-misses
1.193e+09 ± 6% -22.2% 9.283e+08 ± 7% perf-stat.node-stores
2408870 -7.2% 2235771 perf-stat.page-faults
71308 -10.7% 63709 perf-stat.path-length
0.00 +6.6e+12% 66155 ± 93% sched_debug.cfs_rq:/.MIN_vruntime.avg
0.00 +3e+14% 2951855 ± 54% sched_debug.cfs_rq:/.MIN_vruntime.max
0.00 +2.8e+28% 418846 ± 70% sched_debug.cfs_rq:/.MIN_vruntime.stddev
30945 ± 5% +71.6% 53105 ± 65% sched_debug.cfs_rq:/.load.max
5000 ± 2% +55.4% 7768 ± 51% sched_debug.cfs_rq:/.load.stddev
0.00 +6.6e+12% 66155 ± 93% sched_debug.cfs_rq:/.max_vruntime.avg
0.00 +3e+14% 2951855 ± 54% sched_debug.cfs_rq:/.max_vruntime.max
0.00 +2.8e+28% 418846 ± 70% sched_debug.cfs_rq:/.max_vruntime.stddev
29631852 -11.3% 26273202 ± 3% sched_debug.cfs_rq:/.min_vruntime.max
26964419 -11.4% 23885494 ± 3% sched_debug.cfs_rq:/.min_vruntime.min
31.32 ± 4% +10.9% 34.73 ± 2% sched_debug.cfs_rq:/.runnable_load_avg.max
2.30 ± 19% -45.1% 1.26 ± 33% sched_debug.cfs_rq:/.runnable_load_avg.min
5.38 ± 4% +14.2% 6.14 ± 3% sched_debug.cfs_rq:/.runnable_load_avg.stddev
29759 ± 2% +76.9% 52656 ± 65% sched_debug.cfs_rq:/.runnable_weight.max
5353 ± 3% +53.7% 8227 ± 48% sched_debug.cfs_rq:/.runnable_weight.stddev
127.80 ± 6% -27.7% 92.36 ± 14% sched_debug.cfs_rq:/.util_est_enqueued.min
3.68 ± 9% -24.7% 2.77 ± 9% sched_debug.cpu.cpu_load[0].min
5.29 ± 4% +13.0% 5.98 ± 4% sched_debug.cpu.cpu_load[0].stddev
29.43 ± 4% +16.5% 34.27 ± 7% sched_debug.cpu.cpu_load[1].max
4.55 ± 4% -23.3% 3.49 ± 9% sched_debug.cpu.cpu_load[1].min
4.74 ± 3% +18.4% 5.62 ± 4% sched_debug.cpu.cpu_load[1].stddev
4.88 ± 4% -18.7% 3.96 ± 8% sched_debug.cpu.cpu_load[2].min
4.96 ± 5% -11.8% 4.38 ± 6% sched_debug.cpu.cpu_load[3].min
4.38 ± 4% +13.8% 4.99 ± 7% sched_debug.cpu.cpu_load[3].stddev
2.57 ± 7% -20.6% 2.04 ± 6% sched_debug.cpu.nr_running.min
3.38 ± 3% +7.4% 3.63 ± 4% sched_debug.cpu.nr_running.stddev
70365771 -14.7% 60002575 ± 4% sched_debug.cpu.nr_switches.avg
74366842 -15.4% 62919235 ± 4% sched_debug.cpu.nr_switches.max
61887561 -14.7% 52785308 ± 3% sched_debug.cpu.nr_switches.min
6.11 ± 12% -2.0 4.11 ± 2% perf-profile.calltrace.cycles-pp.select_task_rq_fair.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_common_lock
22.94 ± 3% -1.9 21.02 perf-profile.calltrace.cycles-pp.autoremove_wake_function.__wake_up_common.__wake_up_common_lock.pipe_write.__vfs_write
23.59 ± 3% -1.9 21.68 perf-profile.calltrace.cycles-pp.__wake_up_common.__wake_up_common_lock.pipe_write.__vfs_write.vfs_write
22.70 ± 3% -1.9 20.79 perf-profile.calltrace.cycles-pp.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_common_lock.pipe_write
4.24 ± 17% -1.9 2.36 perf-profile.calltrace.cycles-pp.select_idle_sibling.select_task_rq_fair.try_to_wake_up.autoremove_wake_function.__wake_up_common
25.82 ± 3% -1.8 24.06 perf-profile.calltrace.cycles-pp.__wake_up_common_lock.pipe_write.__vfs_write.vfs_write.ksys_write
2.50 ± 23% -1.6 0.91 perf-profile.calltrace.cycles-pp.available_idle_cpu.select_idle_sibling.select_task_rq_fair.try_to_wake_up.autoremove_wake_function
79.22 -1.1 78.10 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe
80.03 -1.0 79.01 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe
6.77 ± 2% -1.0 5.80 ± 2% perf-profile.calltrace.cycles-pp.__schedule.schedule.exit_to_usermode_loop.do_syscall_64.entry_SYSCALL_64_after_hwframe
6.80 ± 2% -0.9 5.86 ± 2% perf-profile.calltrace.cycles-pp.schedule.exit_to_usermode_loop.do_syscall_64.entry_SYSCALL_64_after_hwframe
6.95 ± 2% -0.9 6.02 ± 2% perf-profile.calltrace.cycles-pp.exit_to_usermode_loop.do_syscall_64.entry_SYSCALL_64_after_hwframe
2.44 -0.4 2.00 ± 3% perf-profile.calltrace.cycles-pp.switch_mm_irqs_off.__schedule.schedule.exit_to_usermode_loop.do_syscall_64
1.31 ± 6% -0.2 1.07 ± 6% perf-profile.calltrace.cycles-pp.set_task_cpu.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_common_lock
2.48 -0.2 2.26 perf-profile.calltrace.cycles-pp.__switch_to
1.61 ± 4% -0.2 1.42 ± 5% perf-profile.calltrace.cycles-pp.selinux_file_permission.security_file_permission.vfs_read.ksys_read.do_syscall_64
1.82 ± 2% -0.2 1.65 perf-profile.calltrace.cycles-pp.pick_next_task_fair.__schedule.schedule.exit_to_usermode_loop.do_syscall_64
1.51 -0.1 1.37 ± 2% perf-profile.calltrace.cycles-pp.native_write_msr
1.06 -0.1 0.94 ± 2% perf-profile.calltrace.cycles-pp.load_new_mm_cr3.switch_mm_irqs_off.__schedule.schedule.exit_to_usermode_loop
1.02 ± 6% -0.1 0.90 ± 5% perf-profile.calltrace.cycles-pp.update_curr.dequeue_entity.dequeue_task_fair.__schedule.schedule
0.96 ± 5% -0.1 0.84 ± 5% perf-profile.calltrace.cycles-pp.___perf_sw_event.__schedule.schedule.pipe_wait.pipe_read
0.72 ± 3% -0.1 0.65 ± 2% perf-profile.calltrace.cycles-pp.update_curr.reweight_entity.dequeue_task_fair.__schedule.schedule
0.70 ± 3% -0.1 0.62 perf-profile.calltrace.cycles-pp.put_prev_entity.pick_next_task_fair.__schedule.schedule.exit_to_usermode_loop
0.83 ± 4% -0.1 0.76 perf-profile.calltrace.cycles-pp.finish_task_switch.__schedule.schedule.pipe_wait.pipe_read
0.76 -0.0 0.71 perf-profile.calltrace.cycles-pp.update_curr.reweight_entity.enqueue_task_fair.ttwu_do_activate.try_to_wake_up
0.68 ± 3% -0.0 0.64 ± 3% perf-profile.calltrace.cycles-pp.update_curr.enqueue_entity.enqueue_task_fair.ttwu_do_activate.try_to_wake_up
1.61 -0.0 1.59 perf-profile.calltrace.cycles-pp.reweight_entity.enqueue_task_fair.ttwu_do_activate.try_to_wake_up.autoremove_wake_function
1.10 +0.0 1.12 perf-profile.calltrace.cycles-pp.check_preempt_curr.ttwu_do_wakeup.try_to_wake_up.autoremove_wake_function.__wake_up_common
1.19 +0.0 1.23 perf-profile.calltrace.cycles-pp.ttwu_do_wakeup.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_common_lock
0.62 ± 4% +0.1 0.68 ± 2% perf-profile.calltrace.cycles-pp.file_update_time.pipe_write.__vfs_write.vfs_write.ksys_write
1.23 ± 3% +0.1 1.29 perf-profile.calltrace.cycles-pp.mutex_lock.pipe_write.__vfs_write.vfs_write.ksys_write
1.28 ± 2% +0.1 1.35 perf-profile.calltrace.cycles-pp.update_load_avg.enqueue_entity.enqueue_task_fair.ttwu_do_activate.try_to_wake_up
0.60 ± 3% +0.1 0.67 ± 3% perf-profile.calltrace.cycles-pp.file_has_perm.security_file_permission.vfs_write.ksys_write.do_syscall_64
1.64 ± 2% +0.1 1.71 ± 2% perf-profile.calltrace.cycles-pp.copyout.copy_page_to_iter.pipe_read.__vfs_read.vfs_read
1.15 ± 4% +0.1 1.24 ± 2% perf-profile.calltrace.cycles-pp.selinux_file_permission.security_file_permission.vfs_write.ksys_write.do_syscall_64
0.66 ± 7% +0.1 0.76 ± 5% perf-profile.calltrace.cycles-pp.file_has_perm.security_file_permission.vfs_read.ksys_read.do_syscall_64
2.02 ± 2% +0.1 2.14 ± 2% perf-profile.calltrace.cycles-pp.copy_page_from_iter.pipe_write.__vfs_write.vfs_write.ksys_write
1.06 ± 2% +0.1 1.19 ± 5% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.__wake_up_common_lock.pipe_write.__vfs_write
0.71 +0.2 0.86 ± 5% perf-profile.calltrace.cycles-pp._raw_spin_lock.__schedule.schedule.pipe_wait.pipe_read
1.38 ± 2% +0.2 1.54 ± 5% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.__wake_up_common_lock.pipe_write.__vfs_write.vfs_write
1.82 ± 4% +0.2 1.99 ± 2% perf-profile.calltrace.cycles-pp.security_file_permission.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.54 +0.2 0.71 ± 6% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.__schedule.schedule.pipe_wait
0.41 ± 57% +0.2 0.59 ± 3% perf-profile.calltrace.cycles-pp.mutex_lock.pipe_read.__vfs_read.vfs_read.ksys_read
2.86 ± 2% +0.2 3.07 perf-profile.calltrace.cycles-pp.copy_page_to_iter.pipe_read.__vfs_read.vfs_read.ksys_read
1.91 ± 2% +0.2 2.13 perf-profile.calltrace.cycles-pp.mutex_unlock.pipe_write.__vfs_write.vfs_write.ksys_write
3.12 ± 2% +0.4 3.50 ± 3% perf-profile.calltrace.cycles-pp._raw_spin_lock.try_to_wake_up.autoremove_wake_function.__wake_up_common.__wake_up_common_lock
2.64 ± 3% +0.4 3.03 ± 4% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.try_to_wake_up.autoremove_wake_function.__wake_up_common
0.13 ±173% +0.4 0.56 ± 3% perf-profile.calltrace.cycles-pp.__mutex_unlock_slowpath.pipe_write.__vfs_write.vfs_write.ksys_write
0.00 +0.6 0.56 ± 4% perf-profile.calltrace.cycles-pp.__mutex_lock.pipe_write.__vfs_write.vfs_write.ksys_write
5.25 ± 3% +0.7 5.92 perf-profile.calltrace.cycles-pp.syscall_return_via_sysret
6.20 ± 12% -2.0 4.20 ± 2% perf-profile.children.cycles-pp.select_task_rq_fair
23.05 ± 3% -1.9 21.13 perf-profile.children.cycles-pp.autoremove_wake_function
23.73 ± 3% -1.9 21.85 perf-profile.children.cycles-pp.__wake_up_common
4.36 ± 17% -1.9 2.48 perf-profile.children.cycles-pp.select_idle_sibling
23.06 ± 3% -1.8 21.22 perf-profile.children.cycles-pp.try_to_wake_up
26.51 ± 2% -1.7 24.78 perf-profile.children.cycles-pp.__wake_up_common_lock
2.55 ± 23% -1.6 0.96 perf-profile.children.cycles-pp.available_idle_cpu
23.81 -1.1 22.68 perf-profile.children.cycles-pp.schedule
79.38 -1.1 78.29 perf-profile.children.cycles-pp.do_syscall_64
23.80 -1.1 22.73 perf-profile.children.cycles-pp.__schedule
80.06 -1.0 79.06 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
6.98 ± 2% -0.9 6.06 ± 2% perf-profile.children.cycles-pp.exit_to_usermode_loop
5.43 -0.4 5.01 ± 2% perf-profile.children.cycles-pp.switch_mm_irqs_off
0.65 ± 21% -0.4 0.27 ± 4% perf-profile.children.cycles-pp.cpumask_next_wrap
3.81 ± 2% -0.3 3.52 ± 2% perf-profile.children.cycles-pp.update_curr
1.78 ± 5% -0.3 1.53 ± 4% perf-profile.children.cycles-pp.___perf_sw_event
1.32 ± 6% -0.2 1.08 ± 5% perf-profile.children.cycles-pp.set_task_cpu
2.54 -0.2 2.31 perf-profile.children.cycles-pp.__switch_to
0.50 ± 10% -0.2 0.31 ± 3% perf-profile.children.cycles-pp.find_next_bit
1.12 ± 6% -0.2 0.94 perf-profile.children.cycles-pp.update_rq_clock
4.11 ± 2% -0.2 3.95 perf-profile.children.cycles-pp.pick_next_task_fair
0.64 ± 5% -0.1 0.49 ± 7% perf-profile.children.cycles-pp.migrate_task_rq_fair
1.64 -0.1 1.51 perf-profile.children.cycles-pp.native_write_msr
2.92 -0.1 2.79 perf-profile.children.cycles-pp.load_new_mm_cr3
0.57 ± 7% -0.1 0.47 ± 7% perf-profile.children.cycles-pp.update_min_vruntime
1.10 ± 2% -0.1 1.01 perf-profile.children.cycles-pp.finish_task_switch
0.96 ± 2% -0.1 0.88 ± 2% perf-profile.children.cycles-pp.__calc_delta
0.33 ± 2% -0.1 0.25 ± 5% perf-profile.children.cycles-pp.remove_entity_load_avg
0.88 ± 2% -0.1 0.82 perf-profile.children.cycles-pp.put_prev_entity
0.55 ± 6% -0.1 0.49 ± 4% perf-profile.children.cycles-pp.rb_erase_cached
0.29 ± 7% -0.1 0.23 ± 3% perf-profile.children.cycles-pp.__switch_to_asm
0.32 ± 3% -0.1 0.26 ± 2% perf-profile.children.cycles-pp.update_cfs_rq_h_load
0.27 ± 2% -0.0 0.24 ± 5% perf-profile.children.cycles-pp.cpumask_next
0.36 -0.0 0.33 ± 2% perf-profile.children.cycles-pp.activate_task
0.16 ± 6% -0.0 0.14 ± 7% perf-profile.children.cycles-pp.attach_entity_load_avg
0.17 ± 4% +0.0 0.19 ± 4% perf-profile.children.cycles-pp.native_irq_return_iret
0.11 ± 9% +0.0 0.14 ± 5% perf-profile.children.cycles-pp.mutex_spin_on_owner
0.12 ± 8% +0.0 0.15 ± 2% perf-profile.children.cycles-pp.smp_reschedule_interrupt
0.04 ± 57% +0.0 0.07 ± 7% perf-profile.children.cycles-pp.schedule_preempt_disabled
0.16 ± 11% +0.0 0.19 ± 6% perf-profile.children.cycles-pp.timespec_trunc
0.12 ± 12% +0.0 0.15 ± 7% perf-profile.children.cycles-pp.inode_has_perm
0.30 ± 2% +0.0 0.33 ± 5% perf-profile.children.cycles-pp.__x64_sys_read
1.11 +0.0 1.14 perf-profile.children.cycles-pp.check_preempt_curr
0.29 +0.0 0.33 ± 5% perf-profile.children.cycles-pp.generic_pipe_buf_confirm
0.22 ± 4% +0.0 0.26 ± 2% perf-profile.children.cycles-pp.__fsnotify_parent
0.30 ± 6% +0.0 0.34 ± 6% perf-profile.children.cycles-pp.rw_verify_area
0.23 ± 3% +0.0 0.28 ± 7% perf-profile.children.cycles-pp.__x64_sys_write
0.23 ± 6% +0.0 0.28 perf-profile.children.cycles-pp.current_kernel_time64
1.21 +0.0 1.26 perf-profile.children.cycles-pp.ttwu_do_wakeup
0.45 +0.1 0.50 ± 2% perf-profile.children.cycles-pp.entry_SYSCALL_64_stage2
1.13 +0.1 1.18 ± 2% perf-profile.children.cycles-pp.__update_load_avg_se
0.00 +0.1 0.06 ± 7% perf-profile.children.cycles-pp.osq_lock
0.00 +0.1 0.06 ± 11% perf-profile.children.cycles-pp.schedule_idle
0.18 ± 4% +0.1 0.24 ± 10% perf-profile.children.cycles-pp.reschedule_interrupt
0.00 +0.1 0.07 ± 36% perf-profile.children.cycles-pp.scheduler_ipi
0.41 ± 6% +0.1 0.48 ± 2% perf-profile.children.cycles-pp.wake_up_q
0.26 ± 4% +0.1 0.34 ± 5% perf-profile.children.cycles-pp.preempt_schedule_common
0.23 ± 8% +0.1 0.30 ± 2% perf-profile.children.cycles-pp.rcu_all_qs
1.65 +0.1 1.73 perf-profile.children.cycles-pp.copyout
0.42 ± 4% +0.1 0.50 perf-profile.children.cycles-pp.current_time
0.42 ± 5% +0.1 0.51 ± 3% perf-profile.children.cycles-pp.__might_fault
0.73 ± 3% +0.1 0.84 perf-profile.children.cycles-pp.__might_sleep
0.00 +0.1 0.11 ± 13% perf-profile.children.cycles-pp.__bitmap_weight
0.00 +0.1 0.12 ± 3% perf-profile.children.cycles-pp.intel_idle
0.80 ± 6% +0.1 0.93 ± 2% perf-profile.children.cycles-pp.fsnotify
0.00 +0.1 0.13 perf-profile.children.cycles-pp.cpuidle_enter_state
1.09 ± 5% +0.1 1.23 ± 3% perf-profile.children.cycles-pp.avc_has_perm
2.15 ± 2% +0.1 2.29 ± 2% perf-profile.children.cycles-pp.copy_page_from_iter
0.67 ± 4% +0.1 0.82 perf-profile.children.cycles-pp._cond_resched
0.66 ± 4% +0.2 0.83 ± 3% perf-profile.children.cycles-pp.__mutex_lock
2.48 ± 2% +0.2 2.65 perf-profile.children.cycles-pp.mutex_lock
0.95 ± 6% +0.2 1.12 perf-profile.children.cycles-pp.__mutex_unlock_slowpath
3.09 ± 2% +0.2 3.27 perf-profile.children.cycles-pp.copy_page_to_iter
0.04 ± 58% +0.2 0.23 ± 3% perf-profile.children.cycles-pp.secondary_startup_64
0.04 ± 58% +0.2 0.23 ± 3% perf-profile.children.cycles-pp.start_secondary
0.04 ± 58% +0.2 0.23 ± 3% perf-profile.children.cycles-pp.cpu_startup_entry
0.04 ± 58% +0.2 0.23 ± 3% perf-profile.children.cycles-pp.do_idle
1.10 ± 3% +0.2 1.29 ± 3% perf-profile.children.cycles-pp.___might_sleep
0.76 ± 3% +0.2 0.96 ± 2% perf-profile.children.cycles-pp.__inode_security_revalidate
1.40 ± 5% +0.2 1.64 ± 4% perf-profile.children.cycles-pp.file_has_perm
2.76 ± 2% +0.3 3.04 ± 3% perf-profile.children.cycles-pp.mutex_unlock
4.95 +0.5 5.41 ± 3% perf-profile.children.cycles-pp._raw_spin_lock
5.25 ± 3% +0.7 5.92 perf-profile.children.cycles-pp.syscall_return_via_sysret
5.63 ± 2% +0.7 6.30 ± 3% perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
2.55 ± 23% -1.6 0.96 perf-profile.self.cycles-pp.available_idle_cpu
2.95 ± 3% -0.3 2.65 ± 3% perf-profile.self.cycles-pp.switch_mm_irqs_off
1.69 ± 5% -0.2 1.44 ± 4% perf-profile.self.cycles-pp.___perf_sw_event
0.39 ± 22% -0.2 0.15 ± 4% perf-profile.self.cycles-pp.cpumask_next_wrap
2.54 -0.2 2.31 perf-profile.self.cycles-pp.__switch_to
0.50 ± 10% -0.2 0.31 ± 3% perf-profile.self.cycles-pp.find_next_bit
0.74 ± 10% -0.2 0.55 ± 4% perf-profile.self.cycles-pp.update_rq_clock
2.77 ± 2% -0.2 2.60 ± 3% perf-profile.self.cycles-pp.__schedule
1.64 -0.1 1.51 perf-profile.self.cycles-pp.native_write_msr
2.92 -0.1 2.79 perf-profile.self.cycles-pp.load_new_mm_cr3
2.32 -0.1 2.20 ± 3% perf-profile.self.cycles-pp.update_curr
0.57 ± 7% -0.1 0.47 ± 7% perf-profile.self.cycles-pp.update_min_vruntime
1.20 -0.1 1.10 ± 2% perf-profile.self.cycles-pp._raw_spin_lock
0.96 ± 2% -0.1 0.88 ± 2% perf-profile.self.cycles-pp.__calc_delta
0.26 ± 9% -0.1 0.20 ± 7% perf-profile.self.cycles-pp.migrate_task_rq_fair
0.29 ± 7% -0.1 0.23 ± 3% perf-profile.self.cycles-pp.__switch_to_asm
0.41 ± 2% -0.1 0.36 ± 9% perf-profile.self.cycles-pp.pipe_wait
0.32 ± 3% -0.1 0.26 ± 2% perf-profile.self.cycles-pp.update_cfs_rq_h_load
1.22 -0.1 1.17 ± 2% perf-profile.self.cycles-pp.enqueue_task_fair
0.33 ± 2% -0.0 0.30 ± 2% perf-profile.self.cycles-pp.prepare_to_wait
0.36 -0.0 0.33 ± 2% perf-profile.self.cycles-pp.activate_task
0.16 ± 6% -0.0 0.14 ± 7% perf-profile.self.cycles-pp.attach_entity_load_avg
0.05 ± 8% +0.0 0.07 ± 6% perf-profile.self.cycles-pp.cpumask_next
0.09 +0.0 0.11 ± 4% perf-profile.self.cycles-pp.wake_up_q
0.21 ± 4% +0.0 0.22 ± 4% perf-profile.self.cycles-pp.ksys_write
0.11 ± 7% +0.0 0.13 ± 3% perf-profile.self.cycles-pp.ttwu_do_wakeup
0.23 ± 3% +0.0 0.25 perf-profile.self.cycles-pp.check_preempt_curr
0.12 ± 6% +0.0 0.15 ± 3% perf-profile.self.cycles-pp.__might_fault
0.07 ± 10% +0.0 0.10 ± 5% perf-profile.self.cycles-pp.copyout
0.17 ± 4% +0.0 0.19 ± 4% perf-profile.self.cycles-pp.native_irq_return_iret
0.29 +0.0 0.32 ± 6% perf-profile.self.cycles-pp.__x64_sys_read
0.21 ± 2% +0.0 0.24 ± 4% perf-profile.self.cycles-pp.ksys_read
0.12 ± 12% +0.0 0.15 ± 7% perf-profile.self.cycles-pp.inode_has_perm
0.11 ± 7% +0.0 0.14 ± 5% perf-profile.self.cycles-pp.mutex_spin_on_owner
0.29 +0.0 0.33 ± 5% perf-profile.self.cycles-pp.generic_pipe_buf_confirm
0.15 ± 10% +0.0 0.19 ± 7% perf-profile.self.cycles-pp.current_time
0.27 ± 3% +0.0 0.30 ± 7% perf-profile.self.cycles-pp.schedule
0.29 +0.0 0.33 ± 2% perf-profile.self.cycles-pp._cond_resched
0.15 ± 5% +0.0 0.19 ± 2% perf-profile.self.cycles-pp.__fdget_pos
0.22 ± 5% +0.0 0.26 perf-profile.self.cycles-pp.__fsnotify_parent
0.22 ± 8% +0.0 0.26 perf-profile.self.cycles-pp.wake_q_add
0.23 ± 4% +0.0 0.27 perf-profile.self.cycles-pp.current_kernel_time64
0.22 ± 5% +0.0 0.26 ± 4% perf-profile.self.cycles-pp.__mutex_unlock_slowpath
0.00 +0.1 0.05 perf-profile.self.cycles-pp.sched_clock
0.45 +0.1 0.50 ± 2% perf-profile.self.cycles-pp.entry_SYSCALL_64_stage2
1.09 +0.1 1.15 ± 2% perf-profile.self.cycles-pp.__update_load_avg_se
0.22 +0.1 0.28 ± 7% perf-profile.self.cycles-pp.__x64_sys_write
0.61 ± 4% +0.1 0.67 ± 2% perf-profile.self.cycles-pp.vfs_write
0.57 +0.1 0.63 ± 3% perf-profile.self.cycles-pp.__vfs_write
0.00 +0.1 0.06 ± 7% perf-profile.self.cycles-pp.osq_lock
1.14 +0.1 1.20 perf-profile.self.cycles-pp._raw_spin_unlock_irqrestore
0.35 ± 4% +0.1 0.41 ± 6% perf-profile.self.cycles-pp.__mutex_lock
0.34 ± 6% +0.1 0.40 ± 7% perf-profile.self.cycles-pp.security_file_permission
0.25 ± 5% +0.1 0.32 ± 4% perf-profile.self.cycles-pp.__inode_security_revalidate
0.23 ± 8% +0.1 0.30 ± 3% perf-profile.self.cycles-pp.rcu_all_qs
0.50 ± 4% +0.1 0.58 ± 3% perf-profile.self.cycles-pp.__vfs_read
0.68 +0.1 0.76 ± 3% perf-profile.self.cycles-pp.copy_page_from_iter
0.81 ± 2% +0.1 0.91 ± 2% perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe
0.72 ± 3% +0.1 0.83 perf-profile.self.cycles-pp.__might_sleep
0.29 ± 6% +0.1 0.39 ± 6% perf-profile.self.cycles-pp.file_has_perm
0.00 +0.1 0.11 ± 13% perf-profile.self.cycles-pp.__bitmap_weight
0.79 ± 6% +0.1 0.91 ± 3% perf-profile.self.cycles-pp.fsnotify
0.00 +0.1 0.12 ± 3% perf-profile.self.cycles-pp.intel_idle
1.08 ± 4% +0.1 1.21 ± 3% perf-profile.self.cycles-pp.avc_has_perm
2.37 ± 2% +0.1 2.50 perf-profile.self.cycles-pp.update_load_avg
1.09 ± 3% +0.2 1.27 ± 3% perf-profile.self.cycles-pp.___might_sleep
2.73 ± 2% +0.3 2.99 ± 3% perf-profile.self.cycles-pp.mutex_unlock
1.19 ± 5% +0.3 1.53 ± 7% perf-profile.self.cycles-pp.do_syscall_64
5.25 ± 3% +0.7 5.92 perf-profile.self.cycles-pp.syscall_return_via_sysret
5.63 ± 2% +0.7 6.30 ± 3% perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
Disclaimer:
Results have been estimated based on internal Intel analysis and are provided
for informational purposes only. Any difference in system hardware or software
design or configuration may affect actual performance.
Thanks,
Xiaolong
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