| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <f35b0909-c2e7-4d28-b2c6-30725bf2011f@lucifer.local>
Date: Fri, 5 Dec 2025 12:11:23 +0000
From: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
To: kernel test robot <oliver.sang@...el.com>
Cc: oe-lkp@...ts.linux.dev, lkp@...el.com, linux-kernel@...r.kernel.org
Subject: Re: [linux-next:master] [mm] 2b6a3f061f: stress-ng.msg.ops_per_sec
34.1% regression
On Fri, Dec 05, 2025 at 09:41:37AM +0800, kernel test robot wrote:
>
>
> Hello,
>
> kernel test robot noticed a 34.1% regression of stress-ng.msg.ops_per_sec on:
>
>
> commit: 2b6a3f061f11372af79b862d6184d43193ae927f ("mm: declare VMA flags by bit")
This is strange, as this _should_ have no actual impact on anything.
However, it seems that <= 32-bit flags being declared as de-facto unsigned int
is the delta here, and by declaring everything as an unsigned long via BIT() we
have inadvertantly undone this optimisation.
We can resolve this by having two types of INIT_VM_FLAG() macro - one for 32-bit
flags and one for 64-bit flags and using each as appropriate.
I will send a patch shortly.
Cheers, Lorenzo
> https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master
>
> [still regression on fix commit 4a5a135bf8c51b55fe1b3e6ee91dd6a15c3a56f4]
> [still regression on linux-next/master b2c27842ba853508b0da00187a7508eb3a96c8f7]
>
>
> testcase: stress-ng
> config: x86_64-rhel-9.4
> compiler: gcc-14
> test machine: 192 threads 2 sockets Intel(R) Xeon(R) 6740E CPU @ 2.4GHz (Sierra Forest) with 256G memory
> parameters:
>
> nr_threads: 100%
> testtime: 60s
> test: msg
> cpufreq_governor: performance
>
>
>
>
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <oliver.sang@...el.com>
> | Closes: https://lore.kernel.org/oe-lkp/202512041634.150c7e4f-lkp@intel.com
>
>
> Details are as below:
> -------------------------------------------------------------------------------------------------->
>
>
> The kernel config and materials to reproduce are available at:
> https://download.01.org/0day-ci/archive/20251204/202512041634.150c7e4f-lkp@intel.com
>
> =========================================================================================
> compiler/cpufreq_governor/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime:
> gcc-14/performance/x86_64-rhel-9.4/100%/debian-13-x86_64-20250902.cgz/lkp-srf-2sp2/msg/stress-ng/60s
>
> commit:
> 8f4338b114 ("zram: fix a spelling mistake")
> 2b6a3f061f ("mm: declare VMA flags by bit")
>
> 8f4338b1141e1e44 2b6a3f061f11372af79b862d618
> ---------------- ---------------------------
> %stddev %change %stddev
> \ | \
> 5.59e+09 +35.8% 7.592e+09 cpuidle..time
> 14613730 -13.3% 12675193 cpuidle..usage
> 760835 ± 11% -36.5% 482823 ± 9% numa-numastat.node1.local_node
> 865827 ± 6% -34.0% 571367 ± 5% numa-numastat.node1.numa_hit
> 1762536 -13.8% 1519638 meminfo.Active
> 1762520 -13.8% 1519622 meminfo.Active(anon)
> 476452 ± 3% -33.8% 315279 ± 4% meminfo.Mapped
> 1019665 -22.2% 792809 meminfo.Shmem
> 686866 ± 25% -43.4% 389013 ± 30% numa-meminfo.node0.Active
> 686856 ± 25% -43.4% 389004 ± 30% numa-meminfo.node0.Active(anon)
> 302285 ± 9% -36.8% 191066 ± 20% numa-meminfo.node1.Mapped
> 684905 ± 11% -26.3% 504833 ± 8% numa-meminfo.node1.Shmem
> 43810 ± 4% -47.9% 22843 ± 2% perf-c2c.DRAM.remote
> 227578 ± 2% -52.1% 108981 perf-c2c.HITM.local
> 36971 ± 4% -52.1% 17724 ± 2% perf-c2c.HITM.remote
> 264550 ± 3% -52.1% 126705 perf-c2c.HITM.total
> 46.49 +17.1 63.56 mpstat.cpu.all.idle%
> 0.22 -0.0 0.18 mpstat.cpu.all.soft%
> 49.06 -16.1 32.99 mpstat.cpu.all.sys%
> 3.24 -0.9 2.33 mpstat.cpu.all.usr%
> 5.00 ± 16% +913.3% 50.67 ± 2% mpstat.max_utilization.seconds
> 58.01 -32.8% 39.00 mpstat.max_utilization_pct
> 171837 ± 25% -43.4% 97315 ± 30% numa-vmstat.node0.nr_active_anon
> 171837 ± 25% -43.4% 97314 ± 30% numa-vmstat.node0.nr_zone_active_anon
> 76059 ± 9% -36.9% 48029 ± 20% numa-vmstat.node1.nr_mapped
> 171443 ± 11% -26.3% 126316 ± 8% numa-vmstat.node1.nr_shmem
> 865096 ± 6% -34.0% 570583 ± 5% numa-vmstat.node1.numa_hit
> 760104 ± 11% -36.6% 482039 ± 9% numa-vmstat.node1.numa_local
> 1.32e+09 -34.1% 8.706e+08 stress-ng.msg.ops
> 22023874 -34.1% 14521626 stress-ng.msg.ops_per_sec
> 69687 -49.2% 35415 stress-ng.time.involuntary_context_switches
> 10018 -32.7% 6743 stress-ng.time.percent_of_cpu_this_job_got
> 5695 -32.9% 3819 stress-ng.time.system_time
> 325.75 -28.3% 233.63 stress-ng.time.user_time
> 13621503 -3.3% 13174079 stress-ng.time.voluntary_context_switches
> 46.35 ± 28% -58.5% 19.26 ± 5% perf-sched.sch_delay.max.ms.[unknown].[unknown].[unknown].[unknown].[unknown]
> 46.35 ± 28% -58.5% 19.26 ± 5% perf-sched.total_sch_delay.max.ms
> 3.13 ± 3% +26.6% 3.96 perf-sched.total_wait_and_delay.average.ms
> 1117872 ± 3% -20.3% 890994 perf-sched.total_wait_and_delay.count.ms
> 3.11 ± 3% +26.7% 3.95 perf-sched.total_wait_time.average.ms
> 3.13 ± 3% +26.6% 3.96 perf-sched.wait_and_delay.avg.ms.[unknown].[unknown].[unknown].[unknown].[unknown]
> 1117872 ± 3% -20.3% 890994 perf-sched.wait_and_delay.count.[unknown].[unknown].[unknown].[unknown].[unknown]
> 3.11 ± 3% +26.7% 3.95 perf-sched.wait_time.avg.ms.[unknown].[unknown].[unknown].[unknown].[unknown]
> 1711 -31.8% 1167 turbostat.Avg_MHz
> 53.44 -17.0 36.47 turbostat.Busy%
> 47.13 +16.9 64.05 turbostat.C1%
> 46.41 +36.7% 63.43 turbostat.CPU%c1
> 32786268 -23.1% 25228959 turbostat.IRQ
> 4873079 -30.3% 3398708 turbostat.NMI
> 255.54 -11.7% 225.67 turbostat.PkgWatt
> 17.62 -2.8% 17.13 turbostat.RAMWatt
> 440823 -13.8% 380038 proc-vmstat.nr_active_anon
> 187054 -2.2% 182970 proc-vmstat.nr_anon_pages
> 1174928 -4.8% 1118263 proc-vmstat.nr_file_pages
> 119754 ± 3% -33.7% 79358 ± 4% proc-vmstat.nr_mapped
> 255082 -22.2% 198367 proc-vmstat.nr_shmem
> 440823 -13.8% 380038 proc-vmstat.nr_zone_active_anon
> 55634 ± 11% -23.4% 42629 ± 6% proc-vmstat.numa_hint_faults
> 48656 ± 17% -33.2% 32479 ± 17% proc-vmstat.numa_hint_faults_local
> 1567153 ± 4% -23.9% 1192609 proc-vmstat.numa_hit
> 1369265 ± 4% -27.4% 994666 proc-vmstat.numa_local
> 1621735 ± 4% -23.2% 1246079 proc-vmstat.pgalloc_normal
> 461560 -4.5% 441014 proc-vmstat.pgfault
> 1153560 ± 6% -23.3% 884516 proc-vmstat.pgfree
> 1815718 -55.1% 815505 sched_debug.cfs_rq:/.avg_vruntime.avg
> 2412826 ± 9% -49.1% 1229066 ± 10% sched_debug.cfs_rq:/.avg_vruntime.max
> 968463 ± 3% -75.4% 238161 ± 3% sched_debug.cfs_rq:/.avg_vruntime.min
> 118825 ± 6% -11.9% 104670 ± 5% sched_debug.cfs_rq:/.avg_vruntime.stddev
> 0.30 ± 3% -35.3% 0.19 ± 11% sched_debug.cfs_rq:/.h_nr_queued.avg
> 0.30 ± 4% -34.8% 0.19 ± 11% sched_debug.cfs_rq:/.h_nr_runnable.avg
> 1815718 -55.1% 815505 sched_debug.cfs_rq:/.min_vruntime.avg
> 2412826 ± 9% -49.1% 1229066 ± 10% sched_debug.cfs_rq:/.min_vruntime.max
> 968463 ± 3% -75.4% 238161 ± 3% sched_debug.cfs_rq:/.min_vruntime.min
> 118825 ± 6% -11.9% 104670 ± 5% sched_debug.cfs_rq:/.min_vruntime.stddev
> 0.30 ± 4% -35.0% 0.19 ± 11% sched_debug.cfs_rq:/.nr_queued.avg
> 402.25 ± 3% -33.2% 268.59 ± 3% sched_debug.cfs_rq:/.runnable_avg.avg
> 1419 ± 12% -35.1% 921.58 ± 9% sched_debug.cfs_rq:/.runnable_avg.max
> 254.52 ± 3% -25.1% 190.71 ± 3% sched_debug.cfs_rq:/.runnable_avg.stddev
> 401.71 ± 3% -33.2% 268.42 ± 3% sched_debug.cfs_rq:/.util_avg.avg
> 1419 ± 12% -35.1% 921.33 ± 9% sched_debug.cfs_rq:/.util_avg.max
> 253.81 ± 3% -24.9% 190.54 ± 3% sched_debug.cfs_rq:/.util_avg.stddev
> 110.78 ± 5% -64.0% 39.93 ± 14% sched_debug.cfs_rq:/.util_est.avg
> 144.99 ± 11% -38.7% 88.87 ± 6% sched_debug.cfs_rq:/.util_est.stddev
> 703642 +15.4% 811736 ± 2% sched_debug.cpu.avg_idle.avg
> 274031 ± 3% +11.1% 304544 ± 7% sched_debug.cpu.avg_idle.stddev
> 973.22 +10.3% 1073 sched_debug.cpu.clock_task.stddev
> 2553 ± 4% -38.0% 1583 ± 9% sched_debug.cpu.curr->pid.avg
> 0.00 ± 6% -18.2% 0.00 ± 6% sched_debug.cpu.next_balance.stddev
> 0.30 ± 4% -36.9% 0.19 ± 9% sched_debug.cpu.nr_running.avg
> 154189 ± 3% -25.8% 114332 ± 9% sched_debug.cpu.nr_switches.max
> 9618 ± 3% -20.7% 7630 ± 9% sched_debug.cpu.nr_switches.stddev
> 0.30 ± 5% +40.6% 0.42 ± 4% sched_debug.cpu.nr_uninterruptible.avg
> 717.42 ± 6% -67.5% 232.92 ± 5% sched_debug.cpu.nr_uninterruptible.max
> -8660 -59.1% -3538 sched_debug.cpu.nr_uninterruptible.min
> 645.97 ± 3% -59.3% 262.89 ± 2% sched_debug.cpu.nr_uninterruptible.stddev
> 0.87 ± 2% +17.8% 1.03 perf-stat.i.MPKI
> 1.51e+10 -36.5% 9.589e+09 perf-stat.i.branch-instructions
> 0.34 -0.0 0.31 perf-stat.i.branch-miss-rate%
> 51316978 -42.8% 29341873 perf-stat.i.branch-misses
> 14.78 ± 2% +1.2 16.00 perf-stat.i.cache-miss-rate%
> 66087672 ± 3% -24.3% 50023541 perf-stat.i.cache-misses
> 4.553e+08 -29.9% 3.194e+08 perf-stat.i.cache-references
> 450491 -3.3% 435839 perf-stat.i.context-switches
> 4.31 +6.1% 4.57 perf-stat.i.cpi
> 3.32e+11 -31.7% 2.269e+11 perf-stat.i.cpu-cycles
> 103340 -49.3% 52435 perf-stat.i.cpu-migrations
> 5121 ± 3% -10.8% 4569 perf-stat.i.cycles-between-cache-misses
> 7.705e+10 -35.6% 4.961e+10 perf-stat.i.instructions
> 0.23 -5.9% 0.22 perf-stat.i.ipc
> 2.34 -3.2% 2.26 perf-stat.i.metric.K/sec
> 6077 ± 2% -6.5% 5680 perf-stat.i.minor-faults
> 6077 ± 2% -6.5% 5681 perf-stat.i.page-faults
> 0.86 ± 2% +17.7% 1.01 perf-stat.overall.MPKI
> 0.34 -0.0 0.31 perf-stat.overall.branch-miss-rate%
> 14.50 ± 2% +1.2 15.66 perf-stat.overall.cache-miss-rate%
> 4.31 +6.1% 4.57 perf-stat.overall.cpi
> 5034 ± 3% -9.9% 4535 perf-stat.overall.cycles-between-cache-misses
> 0.23 -5.8% 0.22 perf-stat.overall.ipc
> 1.485e+10 -36.5% 9.431e+09 perf-stat.ps.branch-instructions
> 50480713 -42.8% 28856943 perf-stat.ps.branch-misses
> 64956364 ± 3% -24.3% 49194321 perf-stat.ps.cache-misses
> 4.48e+08 -29.9% 3.141e+08 perf-stat.ps.cache-references
> 443136 -3.3% 428680 perf-stat.ps.context-switches
> 3.266e+11 -31.7% 2.231e+11 perf-stat.ps.cpu-cycles
> 101675 -49.3% 51574 perf-stat.ps.cpu-migrations
> 7.581e+10 -35.6% 4.88e+10 perf-stat.ps.instructions
> 5911 ± 2% -5.9% 5561 perf-stat.ps.minor-faults
> 5911 ± 2% -5.9% 5561 perf-stat.ps.page-faults
> 4.65e+12 -36.0% 2.978e+12 perf-stat.total.instructions
> 45.02 ± 2% -27.4 17.66 perf-profile.calltrace.cycles-pp.__percpu_counter_sum.ksys_msgctl.do_syscall_64.entry_SYSCALL_64_after_hwframe.msgctl
> 43.42 ± 2% -27.0 16.37 perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.__percpu_counter_sum.ksys_msgctl.do_syscall_64.entry_SYSCALL_64_after_hwframe
> 43.29 ± 2% -27.0 16.27 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.__percpu_counter_sum.ksys_msgctl.do_syscall_64
> 5.70 ± 2% -2.8 2.86 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.do_msgsnd.do_syscall_64.entry_SYSCALL_64_after_hwframe
> 4.30 ± 2% -2.8 1.50 ± 10% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.do_msgrcv.do_syscall_64.entry_SYSCALL_64_after_hwframe
> 3.61 ± 3% -2.2 1.40 ± 4% perf-profile.calltrace.cycles-pp.percpu_counter_add_batch.do_msgrcv.do_syscall_64.entry_SYSCALL_64_after_hwframe
> 3.56 ± 3% -1.9 1.65 ± 4% perf-profile.calltrace.cycles-pp._raw_spin_lock.do_msgrcv.do_syscall_64.entry_SYSCALL_64_after_hwframe
> 1.05 ± 19% -0.7 0.36 ± 71% perf-profile.calltrace.cycles-pp._raw_spin_lock.do_msgrcv.do_syscall_64.entry_SYSCALL_64_after_hwframe.stress_msg
> 1.15 ± 4% +0.1 1.28 ± 5% perf-profile.calltrace.cycles-pp.__memcg_slab_free_hook.kfree.free_msg.do_msgrcv.do_syscall_64
> 0.93 +0.1 1.06 perf-profile.calltrace.cycles-pp.sysvec_call_function_single.asm_sysvec_call_function_single.pv_native_safe_halt.acpi_safe_halt.acpi_idle_do_entry
> 1.02 +0.1 1.15 perf-profile.calltrace.cycles-pp.pv_native_safe_halt.acpi_safe_halt.acpi_idle_do_entry.acpi_idle_enter.cpuidle_enter_state
> 1.32 ± 2% +0.1 1.46 ± 4% perf-profile.calltrace.cycles-pp.stress_msg_receiver
> 0.56 +0.1 0.70 perf-profile.calltrace.cycles-pp.sched_ttwu_pending.__flush_smp_call_function_queue.__sysvec_call_function_single.sysvec_call_function_single.asm_sysvec_call_function_single
> 0.66 +0.2 0.84 perf-profile.calltrace.cycles-pp.__flush_smp_call_function_queue.__sysvec_call_function_single.sysvec_call_function_single.asm_sysvec_call_function_single.pv_native_safe_halt
> 0.67 +0.2 0.86 perf-profile.calltrace.cycles-pp.__sysvec_call_function_single.sysvec_call_function_single.asm_sysvec_call_function_single.pv_native_safe_halt.acpi_safe_halt
> 1.04 +0.2 1.27 perf-profile.calltrace.cycles-pp.asm_sysvec_call_function_single.pv_native_safe_halt.acpi_safe_halt.acpi_idle_do_entry.acpi_idle_enter
> 1.14 +0.2 1.37 perf-profile.calltrace.cycles-pp.acpi_idle_do_entry.acpi_idle_enter.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call
> 1.14 +0.2 1.38 perf-profile.calltrace.cycles-pp.acpi_idle_enter.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle
> 1.13 +0.2 1.37 perf-profile.calltrace.cycles-pp.acpi_safe_halt.acpi_idle_do_entry.acpi_idle_enter.cpuidle_enter_state.cpuidle_enter
> 1.16 +0.2 1.41 perf-profile.calltrace.cycles-pp.cpuidle_enter.cpuidle_idle_call.do_idle.cpu_startup_entry.start_secondary
> 1.16 +0.2 1.41 perf-profile.calltrace.cycles-pp.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle.cpu_startup_entry
> 2.41 ± 2% +0.3 2.74 ± 5% perf-profile.calltrace.cycles-pp.store_msg.do_msgrcv.do_syscall_64.entry_SYSCALL_64_after_hwframe
> 1.48 +0.3 1.82 perf-profile.calltrace.cycles-pp.cpuidle_idle_call.do_idle.cpu_startup_entry.start_secondary.common_startup_64
> 1.09 ± 10% +0.4 1.51 ± 10% perf-profile.calltrace.cycles-pp._copy_to_user.store_msg.do_msgrcv.do_syscall_64.entry_SYSCALL_64_after_hwframe
> 1.78 +0.5 2.24 perf-profile.calltrace.cycles-pp.do_idle.cpu_startup_entry.start_secondary.common_startup_64
> 1.78 +0.5 2.24 perf-profile.calltrace.cycles-pp.cpu_startup_entry.start_secondary.common_startup_64
> 1.78 +0.5 2.25 perf-profile.calltrace.cycles-pp.start_secondary.common_startup_64
> 0.17 ±141% +0.5 0.64 ± 2% perf-profile.calltrace.cycles-pp.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe.stress_msg
> 0.17 ±141% +0.5 0.64 ± 2% perf-profile.calltrace.cycles-pp.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe.stress_msg
> 0.17 ±141% +0.5 0.66 ± 6% perf-profile.calltrace.cycles-pp.queue_event.ordered_events__queue.process_simple.reader__read_event.perf_session__process_events
> 0.00 +0.5 0.51 perf-profile.calltrace.cycles-pp.__schedule.schedule.schedule_preempt_disabled.rwsem_down_read_slowpath.down_read
> 0.00 +0.5 0.52 perf-profile.calltrace.cycles-pp.schedule.schedule_preempt_disabled.rwsem_down_read_slowpath.down_read.ksys_msgctl
> 0.00 +0.5 0.52 perf-profile.calltrace.cycles-pp.schedule_preempt_disabled.rwsem_down_read_slowpath.down_read.ksys_msgctl.do_syscall_64
> 0.00 +0.6 0.61 perf-profile.calltrace.cycles-pp.ttwu_do_activate.sched_ttwu_pending.__flush_smp_call_function_queue.__sysvec_call_function_single.sysvec_call_function_single
> 0.86 ± 70% +0.6 1.49 ± 2% perf-profile.calltrace.cycles-pp.stress_msg_sender.stress_msg
> 0.00 +0.6 0.63 ± 2% perf-profile.calltrace.cycles-pp.seq_read.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe
> 0.00 +0.6 0.63 ± 2% perf-profile.calltrace.cycles-pp.seq_read_iter.seq_read.vfs_read.ksys_read.do_syscall_64
> 0.00 +0.6 0.64 ± 7% perf-profile.calltrace.cycles-pp.perf_session__deliver_event.__ordered_events__flush.perf_session__process_user_event.reader__read_event.perf_session__process_events
> 2.00 +0.6 2.64 perf-profile.calltrace.cycles-pp.common_startup_64
> 0.00 +0.7 0.72 ± 2% perf-profile.calltrace.cycles-pp.osq_lock.rwsem_down_write_slowpath.down_write.msgctl_down.ksys_msgctl
> 0.00 +0.9 0.92 perf-profile.calltrace.cycles-pp.rwsem_wake.up_write.msgctl_down.ksys_msgctl.do_syscall_64
> 0.00 +1.0 0.99 perf-profile.calltrace.cycles-pp.up_write.msgctl_down.ksys_msgctl.do_syscall_64.entry_SYSCALL_64_after_hwframe
> 0.00 +1.2 1.25 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irq.rwsem_down_write_slowpath.down_write.msgctl_down
> 0.00 +1.4 1.38 perf-profile.calltrace.cycles-pp._raw_spin_lock_irq.rwsem_down_write_slowpath.down_write.msgctl_down.ksys_msgctl
> 0.00 +1.6 1.58 ± 2% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irq.rwsem_down_read_slowpath.down_read.ksys_msgctl
> 0.00 +1.7 1.68 ± 2% perf-profile.calltrace.cycles-pp._raw_spin_lock_irq.rwsem_down_read_slowpath.down_read.ksys_msgctl.do_syscall_64
> 0.39 ± 70% +2.2 2.62 perf-profile.calltrace.cycles-pp.rwsem_down_read_slowpath.down_read.ksys_msgctl.do_syscall_64.entry_SYSCALL_64_after_hwframe
> 0.50 ± 45% +2.3 2.81 perf-profile.calltrace.cycles-pp.down_read.ksys_msgctl.do_syscall_64.entry_SYSCALL_64_after_hwframe.msgctl
> 0.62 ± 8% +2.3 2.97 perf-profile.calltrace.cycles-pp.rwsem_down_write_slowpath.down_write.msgctl_down.ksys_msgctl.do_syscall_64
> 0.66 ± 8% +2.4 3.09 perf-profile.calltrace.cycles-pp.down_write.msgctl_down.ksys_msgctl.do_syscall_64.entry_SYSCALL_64_after_hwframe
> 1.18 ± 7% +3.1 4.23 perf-profile.calltrace.cycles-pp.msgctl_down.ksys_msgctl.do_syscall_64.entry_SYSCALL_64_after_hwframe.msgctl
> 0.60 ± 47% +3.5 4.08 ± 14% perf-profile.calltrace.cycles-pp.ipc_obtain_object_check.do_msgrcv.do_syscall_64.entry_SYSCALL_64_after_hwframe.stress_msg
> 17.33 ± 3% +7.7 24.99 ± 4% perf-profile.calltrace.cycles-pp.do_msgrcv.do_syscall_64.entry_SYSCALL_64_after_hwframe
> 2.29 ± 3% +11.2 13.47 ± 4% perf-profile.calltrace.cycles-pp.ipc_obtain_object_check.do_msgrcv.do_syscall_64.entry_SYSCALL_64_after_hwframe
> 13.69 ± 58% +15.1 28.78 perf-profile.calltrace.cycles-pp.do_msgsnd.do_syscall_64.entry_SYSCALL_64_after_hwframe.stress_msg
> 0.00 +15.5 15.46 perf-profile.calltrace.cycles-pp.__radix_tree_lookup.ipc_obtain_object_check.do_msgsnd.do_syscall_64.entry_SYSCALL_64_after_hwframe
> 0.00 +15.5 15.50 perf-profile.calltrace.cycles-pp.__radix_tree_lookup.ipc_obtain_object_check.do_msgrcv.do_syscall_64.entry_SYSCALL_64_after_hwframe
> 1.79 ± 70% +15.6 17.35 perf-profile.calltrace.cycles-pp.ipc_obtain_object_check.do_msgsnd.do_syscall_64.entry_SYSCALL_64_after_hwframe.stress_msg
> 20.10 ± 48% +18.1 38.20 ± 2% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.stress_msg
> 20.35 ± 48% +18.2 38.56 ± 2% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.stress_msg
> 53.96 -29.3 24.65 perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
> 45.22 ± 2% -27.4 17.87 perf-profile.children.cycles-pp.__percpu_counter_sum
> 43.75 ± 2% -26.4 17.30 perf-profile.children.cycles-pp._raw_spin_lock_irqsave
> 47.31 ± 2% -21.6 25.71 perf-profile.children.cycles-pp.ksys_msgctl
> 47.53 ± 2% -21.6 25.93 perf-profile.children.cycles-pp.msgctl
> 11.91 ± 2% -5.7 6.21 perf-profile.children.cycles-pp._raw_spin_lock
> 8.92 ± 2% -5.2 3.67 perf-profile.children.cycles-pp.percpu_counter_add_batch
> 91.35 -1.5 89.83 perf-profile.children.cycles-pp.do_syscall_64
> 91.76 -1.5 90.26 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
> 3.82 ± 2% -0.4 3.38 perf-profile.children.cycles-pp.load_msg
> 2.83 ± 2% -0.4 2.40 perf-profile.children.cycles-pp.__kmalloc_node_noprof
> 0.49 ± 8% -0.2 0.25 ± 4% perf-profile.children.cycles-pp.___slab_alloc
> 0.31 ± 3% -0.1 0.21 perf-profile.children.cycles-pp.ss_wakeup
> 0.23 ± 2% -0.0 0.20 ± 2% perf-profile.children.cycles-pp.idle_cpu
> 0.23 ± 2% -0.0 0.20 ± 2% perf-profile.children.cycles-pp.sysvipc_msg_proc_show
> 0.22 ± 3% -0.0 0.19 ± 2% perf-profile.children.cycles-pp.seq_printf
> 0.22 ± 3% -0.0 0.19 ± 2% perf-profile.children.cycles-pp.vsnprintf
> 0.07 -0.0 0.05 perf-profile.children.cycles-pp.select_idle_sibling
> 0.05 +0.0 0.06 perf-profile.children.cycles-pp.cpuacct_charge
> 0.06 +0.0 0.07 perf-profile.children.cycles-pp.available_idle_cpu
> 0.09 +0.0 0.10 perf-profile.children.cycles-pp.wake_affine
> 0.10 ± 4% +0.0 0.11 perf-profile.children.cycles-pp.nohz_balance_enter_idle
> 0.10 ± 4% +0.0 0.12 perf-profile.children.cycles-pp.update_rq_clock
> 0.13 +0.0 0.15 ± 2% perf-profile.children.cycles-pp.update_curr
> 0.12 ± 3% +0.0 0.14 ± 3% perf-profile.children.cycles-pp.__update_load_avg_se
> 0.05 +0.0 0.07 perf-profile.children.cycles-pp.llist_reverse_order
> 0.05 +0.0 0.07 ± 8% perf-profile.children.cycles-pp.set_next_task_fair
> 0.07 +0.0 0.09 perf-profile.children.cycles-pp.sched_balance_domains
> 0.10 ± 4% +0.0 0.12 ± 3% perf-profile.children.cycles-pp.__update_load_avg_cfs_rq
> 0.06 +0.0 0.08 ± 4% perf-profile.children.cycles-pp.clockevents_program_event
> 0.07 ± 5% +0.0 0.09 perf-profile.children.cycles-pp.do_perf_trace_sched_wakeup_template
> 0.06 +0.0 0.08 ± 4% perf-profile.children.cycles-pp.menu_select
> 0.08 ± 5% +0.0 0.10 ± 4% perf-profile.children.cycles-pp.prepare_task_switch
> 0.05 +0.0 0.08 ± 6% perf-profile.children.cycles-pp.tick_nohz_restart_sched_tick
> 0.04 ± 44% +0.0 0.07 ± 5% perf-profile.children.cycles-pp.set_next_entity
> 0.06 ± 9% +0.0 0.08 ± 5% perf-profile.children.cycles-pp.tick_nohz_idle_exit
> 0.06 +0.0 0.09 perf-profile.children.cycles-pp.hrtimer_start_range_ns
> 0.11 ± 4% +0.0 0.14 ± 3% perf-profile.children.cycles-pp.tick_nohz_idle_stop_tick
> 0.10 ± 7% +0.0 0.14 ± 3% perf-profile.children.cycles-pp.tick_nohz_stop_tick
> 0.10 +0.0 0.13 ± 3% perf-profile.children.cycles-pp.task_work_run
> 0.08 ± 13% +0.0 0.12 ± 11% perf-profile.children.cycles-pp.update_cfs_group
> 0.05 ± 7% +0.0 0.08 ± 16% perf-profile.children.cycles-pp.map__put
> 0.11 +0.0 0.14 ± 3% perf-profile.children.cycles-pp.ttwu_queue_wakelist
> 0.04 ± 71% +0.0 0.07 ± 10% perf-profile.children.cycles-pp.maps__get
> 0.15 +0.0 0.19 ± 2% perf-profile.children.cycles-pp.exit_to_user_mode_loop
> 0.08 ± 12% +0.0 0.12 ± 9% perf-profile.children.cycles-pp.thread__find_map
> 0.08 +0.0 0.12 perf-profile.children.cycles-pp.update_rq_clock_task
> 0.08 ± 5% +0.0 0.12 ± 3% perf-profile.children.cycles-pp.task_mm_cid_work
> 0.10 +0.0 0.14 ± 3% perf-profile.children.cycles-pp.__resched_curr
> 0.25 ± 2% +0.0 0.30 ± 2% perf-profile.children.cycles-pp.dequeue_entities
> 0.02 ±141% +0.0 0.06 ± 11% perf-profile.children.cycles-pp.callchain_cursor_append
> 0.22 ± 2% +0.0 0.27 ± 2% perf-profile.children.cycles-pp.dequeue_entity
> 0.03 ±100% +0.0 0.07 ± 12% perf-profile.children.cycles-pp.addr_location__exit
> 0.26 +0.0 0.30 ± 2% perf-profile.children.cycles-pp.dequeue_task_fair
> 0.06 ± 11% +0.1 0.12 ± 18% perf-profile.children.cycles-pp.maps__put
> 0.12 ± 4% +0.1 0.17 ± 2% perf-profile.children.cycles-pp.wakeup_preempt
> 0.00 +0.1 0.05 perf-profile.children.cycles-pp.ipcctl_obtain_check
> 0.00 +0.1 0.05 perf-profile.children.cycles-pp.irq_enter_rcu
> 0.00 +0.1 0.05 perf-profile.children.cycles-pp.tick_irq_enter
> 0.55 +0.1 0.60 perf-profile.children.cycles-pp.update_sg_lb_stats
> 0.56 +0.1 0.62 perf-profile.children.cycles-pp.update_sd_lb_stats
> 0.00 +0.1 0.05 ± 7% perf-profile.children.cycles-pp.tick_nohz_get_sleep_length
> 0.00 +0.1 0.05 ± 7% perf-profile.children.cycles-pp.update_other_load_avgs
> 0.06 ± 9% +0.1 0.11 ± 36% perf-profile.children.cycles-pp.callchain_cursor_reset
> 0.26 ± 2% +0.1 0.31 ± 2% perf-profile.children.cycles-pp.try_to_block_task
> 0.56 +0.1 0.62 perf-profile.children.cycles-pp.sched_balance_find_src_group
> 0.00 +0.1 0.06 ± 9% perf-profile.children.cycles-pp.__get_next_timer_interrupt
> 0.01 ±223% +0.1 0.06 ± 7% perf-profile.children.cycles-pp.tmigr_requires_handle_remote
> 0.04 ± 44% +0.1 0.10 ± 3% perf-profile.children.cycles-pp.rwsem_mark_wake
> 0.00 +0.1 0.06 ± 9% perf-profile.children.cycles-pp.get_jiffies_update
> 0.00 +0.1 0.06 perf-profile.children.cycles-pp.update_irq_load_avg
> 0.42 +0.1 0.48 perf-profile.children.cycles-pp.update_load_avg
> 0.09 +0.1 0.15 ± 2% perf-profile.children.cycles-pp.__update_blocked_fair
> 0.64 +0.1 0.71 perf-profile.children.cycles-pp.sched_balance_rq
> 0.08 +0.1 0.15 ± 5% perf-profile.children.cycles-pp.sysvipc_proc_start
> 0.20 ± 2% +0.1 0.27 ± 2% perf-profile.children.cycles-pp.schedule_idle
> 0.09 ± 8% +0.1 0.16 ± 25% perf-profile.children.cycles-pp.map_symbol__exit
> 0.30 +0.1 0.37 perf-profile.children.cycles-pp.enqueue_entity
> 0.35 ± 2% +0.1 0.43 perf-profile.children.cycles-pp.enqueue_task
> 0.34 +0.1 0.42 perf-profile.children.cycles-pp.enqueue_task_fair
> 0.41 +0.1 0.49 perf-profile.children.cycles-pp._nohz_idle_balance
> 0.44 +0.1 0.52 perf-profile.children.cycles-pp.handle_softirqs
> 0.14 ± 2% +0.1 0.22 ± 2% perf-profile.children.cycles-pp.raw_spin_rq_lock_nested
> 0.44 +0.1 0.53 perf-profile.children.cycles-pp.__irq_exit_rcu
> 0.64 +0.1 0.74 perf-profile.children.cycles-pp.sched_balance_newidle
> 0.21 +0.1 0.32 perf-profile.children.cycles-pp.sched_balance_update_blocked_averages
> 0.15 ± 3% +0.1 0.26 ± 3% perf-profile.children.cycles-pp.sysvipc_proc_next
> 0.22 ± 10% +0.1 0.34 ± 10% perf-profile.children.cycles-pp.add_callchain_ip
> 0.23 ± 10% +0.1 0.36 ± 8% perf-profile.children.cycles-pp.thread__resolve_callchain_sample
> 0.50 ± 2% +0.1 0.63 perf-profile.children.cycles-pp.ttwu_do_activate
> 0.71 +0.1 0.85 perf-profile.children.cycles-pp.pick_next_task_fair
> 0.73 +0.1 0.87 perf-profile.children.cycles-pp.__pick_next_task
> 0.10 ± 4% +0.1 0.25 perf-profile.children.cycles-pp.msgctl_stat
> 0.00 +0.1 0.14 ± 5% perf-profile.children.cycles-pp.radix_tree_next_chunk
> 0.00 +0.1 0.14 ± 3% perf-profile.children.cycles-pp.idr_get_next_ul
> 0.50 ± 2% +0.1 0.64 ± 2% perf-profile.children.cycles-pp.ksys_read
> 0.00 +0.1 0.15 ± 3% perf-profile.children.cycles-pp.idr_get_next
> 0.49 ± 2% +0.1 0.64 ± 2% perf-profile.children.cycles-pp.vfs_read
> 0.49 ± 2% +0.2 0.64 ± 2% perf-profile.children.cycles-pp.seq_read_iter
> 0.60 +0.2 0.75 perf-profile.children.cycles-pp.wake_up_q
> 0.49 ± 2% +0.2 0.64 ± 2% perf-profile.children.cycles-pp.seq_read
> 0.54 +0.2 0.70 perf-profile.children.cycles-pp.try_to_wake_up
> 0.58 +0.2 0.74 perf-profile.children.cycles-pp.sched_ttwu_pending
> 1.50 ± 2% +0.2 1.67 perf-profile.children.cycles-pp.__memcg_slab_free_hook
> 0.49 ± 4% +0.2 0.66 ± 6% perf-profile.children.cycles-pp.ordered_events__queue
> 0.22 +0.2 0.40 perf-profile.children.cycles-pp.rest_init
> 0.22 +0.2 0.40 perf-profile.children.cycles-pp.start_kernel
> 0.22 +0.2 0.40 perf-profile.children.cycles-pp.x86_64_start_kernel
> 0.22 +0.2 0.40 perf-profile.children.cycles-pp.x86_64_start_reservations
> 0.48 ± 4% +0.2 0.66 ± 6% perf-profile.children.cycles-pp.queue_event
> 0.29 ± 10% +0.2 0.48 ± 11% perf-profile.children.cycles-pp.__thread__resolve_callchain
> 1.72 ± 3% +0.2 1.90 ± 2% perf-profile.children.cycles-pp.stress_msg_receiver
> 0.51 ± 2% +0.2 0.69 ± 6% perf-profile.children.cycles-pp.process_simple
> 0.30 ± 8% +0.2 0.48 ± 11% perf-profile.children.cycles-pp.sample__for_each_callchain_node
> 0.04 ± 44% +0.2 0.23 perf-profile.children.cycles-pp.rwsem_spin_on_owner
> 0.70 +0.2 0.89 perf-profile.children.cycles-pp.__sysvec_call_function_single
> 0.32 ± 9% +0.2 0.52 ± 11% perf-profile.children.cycles-pp.build_id__mark_dso_hit
> 0.70 +0.2 0.89 perf-profile.children.cycles-pp.__flush_smp_call_function_queue
> 0.63 +0.2 0.84 perf-profile.children.cycles-pp.schedule_preempt_disabled
> 1.28 ± 3% +0.2 1.51 ± 2% perf-profile.children.cycles-pp.stress_msg_sender
> 0.39 ± 4% +0.2 0.64 ± 7% perf-profile.children.cycles-pp.perf_session__deliver_event
> 0.40 ± 5% +0.2 0.64 ± 7% perf-profile.children.cycles-pp.__ordered_events__flush
> 0.40 ± 5% +0.2 0.64 ± 7% perf-profile.children.cycles-pp.perf_session__process_user_event
> 0.08 +0.3 0.34 perf-profile.children.cycles-pp.up_read
> 1.15 +0.3 1.42 perf-profile.children.cycles-pp.schedule
> 1.15 +0.3 1.45 perf-profile.children.cycles-pp.sysvec_call_function_single
> 1.33 +0.3 1.67 perf-profile.children.cycles-pp.__schedule
> 0.29 ± 5% +0.4 0.66 perf-profile.children.cycles-pp.nohz_balance_exit_idle
> 1.27 +0.4 1.68 perf-profile.children.cycles-pp.asm_sysvec_call_function_single
> 1.34 +0.4 1.75 perf-profile.children.cycles-pp.pv_native_safe_halt
> 1.34 +0.4 1.76 perf-profile.children.cycles-pp.acpi_idle_do_entry
> 1.34 +0.4 1.76 perf-profile.children.cycles-pp.acpi_safe_halt
> 1.34 +0.4 1.76 perf-profile.children.cycles-pp.acpi_idle_enter
> 1.37 +0.4 1.79 perf-profile.children.cycles-pp.cpuidle_enter
> 1.36 +0.4 1.79 perf-profile.children.cycles-pp.cpuidle_enter_state
> 1.52 ± 11% +0.4 1.96 perf-profile.children.cycles-pp._copy_to_user
> 3.16 ± 5% +0.5 3.61 perf-profile.children.cycles-pp.store_msg
> 1.78 +0.5 2.25 perf-profile.children.cycles-pp.start_secondary
> 0.92 ± 4% +0.5 1.39 perf-profile.children.cycles-pp.perf_session__process_events
> 0.92 ± 4% +0.5 1.39 perf-profile.children.cycles-pp.reader__read_event
> 0.95 ± 2% +0.5 1.43 perf-profile.children.cycles-pp.update_process_times
> 0.42 ± 4% +0.5 0.90 perf-profile.children.cycles-pp.nohz_balancer_kick
> 0.98 ± 3% +0.5 1.46 perf-profile.children.cycles-pp.tick_nohz_handler
> 1.02 ± 3% +0.5 1.51 perf-profile.children.cycles-pp.hrtimer_interrupt
> 0.99 ± 3% +0.5 1.47 perf-profile.children.cycles-pp.__hrtimer_run_queues
> 1.13 ± 2% +0.5 1.62 perf-profile.children.cycles-pp.asm_sysvec_apic_timer_interrupt
> 1.03 ± 3% +0.5 1.52 perf-profile.children.cycles-pp.__sysvec_apic_timer_interrupt
> 1.08 ± 3% +0.5 1.57 perf-profile.children.cycles-pp.sysvec_apic_timer_interrupt
> 1.69 +0.5 2.21 perf-profile.children.cycles-pp.cpuidle_idle_call
> 0.41 ± 2% +0.6 1.00 perf-profile.children.cycles-pp.up_write
> 0.46 ± 2% +0.6 1.09 perf-profile.children.cycles-pp.rwsem_wake
> 2.00 +0.6 2.64 perf-profile.children.cycles-pp.do_idle
> 2.00 +0.6 2.64 perf-profile.children.cycles-pp.common_startup_64
> 2.00 +0.6 2.64 perf-profile.children.cycles-pp.cpu_startup_entry
> 0.05 ± 7% +0.7 0.73 perf-profile.children.cycles-pp.osq_lock
> 0.64 ± 3% +2.1 2.79 perf-profile.children.cycles-pp.rwsem_down_read_slowpath
> 0.68 ± 3% +2.3 2.99 perf-profile.children.cycles-pp.down_read
> 0.66 ± 2% +2.4 3.01 perf-profile.children.cycles-pp.rwsem_down_write_slowpath
> 0.68 ± 2% +2.4 3.12 perf-profile.children.cycles-pp.down_write
> 0.34 ± 5% +2.8 3.18 ± 2% perf-profile.children.cycles-pp._raw_spin_lock_irq
> 1.23 ± 2% +3.0 4.28 perf-profile.children.cycles-pp.msgctl_down
> 19.31 ± 2% +9.8 29.14 perf-profile.children.cycles-pp.do_msgsnd
> 22.51 ± 2% +10.1 32.64 perf-profile.children.cycles-pp.do_msgrcv
> 5.68 ± 2% +29.6 35.26 perf-profile.children.cycles-pp.ipc_obtain_object_check
> 0.39 ± 2% +31.0 31.35 perf-profile.children.cycles-pp.__radix_tree_lookup
> 53.80 -29.2 24.55 perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
> 8.78 ± 2% -5.2 3.60 perf-profile.self.cycles-pp.percpu_counter_add_batch
> 1.81 ± 2% -0.4 1.41 perf-profile.self.cycles-pp._raw_spin_lock
> 0.46 ± 8% -0.2 0.22 ± 4% perf-profile.self.cycles-pp.___slab_alloc
> 1.34 -0.2 1.16 perf-profile.self.cycles-pp.__percpu_counter_sum
> 0.30 ± 2% -0.1 0.20 ± 2% perf-profile.self.cycles-pp.ss_wakeup
> 0.45 ± 3% -0.1 0.36 perf-profile.self.cycles-pp.__kmalloc_node_noprof
> 0.71 ± 2% -0.1 0.63 perf-profile.self.cycles-pp.do_syscall_64
> 0.22 ± 2% -0.0 0.20 ± 2% perf-profile.self.cycles-pp.idle_cpu
> 0.08 ± 6% -0.0 0.05 perf-profile.self.cycles-pp.vsnprintf
> 0.07 -0.0 0.06 perf-profile.self.cycles-pp.kick_ilb
> 0.07 -0.0 0.06 perf-profile.self.cycles-pp.syscall_return_via_sysret
> 0.10 +0.0 0.11 perf-profile.self.cycles-pp.load_msg
> 0.06 +0.0 0.07 perf-profile.self.cycles-pp.available_idle_cpu
> 0.10 ± 4% +0.0 0.11 perf-profile.self.cycles-pp.nohz_balance_enter_idle
> 0.09 +0.0 0.10 ± 4% perf-profile.self.cycles-pp.update_rq_clock
> 0.10 ± 4% +0.0 0.11 ± 4% perf-profile.self.cycles-pp.__update_load_avg_cfs_rq
> 0.10 +0.0 0.12 ± 3% perf-profile.self.cycles-pp.__schedule
> 0.07 +0.0 0.09 ± 4% perf-profile.self.cycles-pp.__flush_smp_call_function_queue
> 0.06 ± 6% +0.0 0.08 perf-profile.self.cycles-pp.cpuidle_idle_call
> 0.08 +0.0 0.10 ± 3% perf-profile.self.cycles-pp.prepare_task_switch
> 0.05 +0.0 0.07 perf-profile.self.cycles-pp.llist_reverse_order
> 0.10 +0.0 0.13 ± 3% perf-profile.self.cycles-pp.__update_load_avg_se
> 0.03 ± 70% +0.0 0.06 perf-profile.self.cycles-pp.enqueue_entity
> 0.17 ± 2% +0.0 0.20 ± 3% perf-profile.self.cycles-pp.update_load_avg
> 0.06 +0.0 0.09 perf-profile.self.cycles-pp.update_rq_clock_task
> 0.08 ± 13% +0.0 0.12 ± 11% perf-profile.self.cycles-pp.update_cfs_group
> 0.06 ± 8% +0.0 0.09 perf-profile.self.cycles-pp.__update_blocked_fair
> 0.04 ± 45% +0.0 0.08 ± 17% perf-profile.self.cycles-pp.map__put
> 0.08 +0.0 0.12 perf-profile.self.cycles-pp.task_mm_cid_work
> 0.40 +0.0 0.44 perf-profile.self.cycles-pp.update_sg_lb_stats
> 0.10 +0.0 0.14 ± 3% perf-profile.self.cycles-pp.__resched_curr
> 0.06 ± 11% +0.0 0.10 ± 20% perf-profile.self.cycles-pp.maps__put
> 0.00 +0.1 0.05 ± 7% perf-profile.self.cycles-pp.ttwu_queue_wakelist
> 0.02 ±141% +0.1 0.07 ± 10% perf-profile.self.cycles-pp.maps__get
> 0.00 +0.1 0.05 ± 8% perf-profile.self.cycles-pp.sched_ttwu_pending
> 0.00 +0.1 0.06 ± 6% perf-profile.self.cycles-pp.update_irq_load_avg
> 0.00 +0.1 0.06 ± 9% perf-profile.self.cycles-pp.get_jiffies_update
> 0.03 ± 70% +0.1 0.10 ± 5% perf-profile.self.cycles-pp.rwsem_mark_wake
> 0.00 +0.1 0.07 perf-profile.self.cycles-pp.up_write
> 0.00 +0.1 0.08 perf-profile.self.cycles-pp.sched_balance_newidle
> 0.12 ± 3% +0.1 0.22 ± 2% perf-profile.self.cycles-pp.pv_native_safe_halt
> 0.00 +0.1 0.11 perf-profile.self.cycles-pp.ksys_msgctl
> 0.00 +0.1 0.12 ± 4% perf-profile.self.cycles-pp.down_write
> 0.12 ± 4% +0.1 0.24 perf-profile.self.cycles-pp.nohz_balancer_kick
> 3.78 ± 2% +0.1 3.90 perf-profile.self.cycles-pp.ipc_obtain_object_check
> 0.00 +0.1 0.14 ± 5% perf-profile.self.cycles-pp.radix_tree_next_chunk
> 0.00 +0.2 0.17 ± 2% perf-profile.self.cycles-pp.up_read
> 0.20 ± 2% +0.2 0.38 perf-profile.self.cycles-pp._raw_spin_lock_irqsave
> 1.38 ± 2% +0.2 1.55 perf-profile.self.cycles-pp.__memcg_slab_free_hook
> 0.48 ± 4% +0.2 0.65 ± 6% perf-profile.self.cycles-pp.queue_event
> 1.68 ± 3% +0.2 1.86 ± 2% perf-profile.self.cycles-pp.stress_msg_receiver
> 0.00 +0.2 0.19 ± 2% perf-profile.self.cycles-pp.down_read
> 0.02 ± 99% +0.2 0.22 perf-profile.self.cycles-pp.rwsem_spin_on_owner
> 0.08 +0.2 0.28 perf-profile.self.cycles-pp.rwsem_down_write_slowpath
> 1.24 ± 2% +0.2 1.46 ± 2% perf-profile.self.cycles-pp.stress_msg_sender
> 0.10 +0.2 0.33 perf-profile.self.cycles-pp.rwsem_down_read_slowpath
> 0.00 +0.2 0.25 perf-profile.self.cycles-pp._raw_spin_lock_irq
> 1.59 ± 9% +0.4 1.94 perf-profile.self.cycles-pp.do_msgrcv
> 0.29 ± 5% +0.4 0.66 perf-profile.self.cycles-pp.nohz_balance_exit_idle
> 1.47 ± 11% +0.4 1.90 perf-profile.self.cycles-pp._copy_to_user
> 0.05 ± 7% +0.7 0.72 perf-profile.self.cycles-pp.osq_lock
> 1.39 ± 4% +1.0 2.38 perf-profile.self.cycles-pp.do_msgsnd
> 0.39 +30.4 30.74 perf-profile.self.cycles-pp.__radix_tree_lookup
>
>
>
>
> 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.
>
>
> --
> 0-DAY CI Kernel Test Service
> https://github.com/intel/lkp-tests/wiki
>
Powered by blists - more mailing lists