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Message-ID: <202403041300.a7fb1462-yujie.liu@intel.com>
Date: Mon, 4 Mar 2024 13:53:02 +0800
From: kernel test robot <yujie.liu@...el.com>
To: Pawan Gupta <pawan.kumar.gupta@...ux.intel.com>
CC: <oe-lkp@...ts.linux.dev>, <lkp@...el.com>, <linux-kernel@...r.kernel.org>,
Dave Hansen <dave.hansen@...ux.intel.com>, <kvm@...r.kernel.org>,
<ying.huang@...el.com>, <feng.tang@...el.com>, <fengwei.yin@...el.com>
Subject: [linus:master] [x86/bugs] 6613d82e61: stress-ng.mutex.ops_per_sec
-7.9% regression
Hello,
kernel test robot noticed a -7.9% regression of stress-ng.mutex.ops_per_sec on:
commit: 6613d82e617dd7eb8b0c40b2fe3acea655b1d611 ("x86/bugs: Use ALTERNATIVE() instead of mds_user_clear static key")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
testcase: stress-ng
test machine: 64 threads 2 sockets Intel(R) Xeon(R) Gold 6346 CPU @ 3.10GHz (Ice Lake) with 256G memory
parameters:
nr_threads: 100%
testtime: 60s
test: mutex
cpufreq_governor: performance
In addition to that, the commit also has impact on the following tests:
+------------------+-------------------------------------------------------------------------------------------+
| testcase: change | stress-ng: stress-ng.ptrace.ops_per_sec -3.9% regression |
| test machine | 64 threads 2 sockets Intel(R) Xeon(R) Gold 6346 CPU @ 3.10GHz (Ice Lake) with 256G memory |
| test parameters | cpufreq_governor=performance |
| | nr_threads=100% |
| | test=ptrace |
| | testtime=60s |
+------------------+-------------------------------------------------------------------------------------------+
| testcase: change | stress-ng: stress-ng.getdent.ops_per_sec 5.8% improvement |
| test machine | 64 threads 2 sockets Intel(R) Xeon(R) Gold 6346 CPU @ 3.10GHz (Ice Lake) with 256G memory |
| test parameters | cpufreq_governor=performance |
| | disk=1HDD |
| | fs=btrfs |
| | nr_threads=100% |
| | test=getdent |
| | testtime=60s |
+------------------+-------------------------------------------------------------------------------------------+
| testcase: change | will-it-scale: will-it-scale.per_thread_ops 4.0% improvement |
| test machine | 104 threads 2 sockets (Skylake) with 192G memory |
| test parameters | cpufreq_governor=performance |
| | mode=thread |
| | nr_task=100% |
| | test=futex4 |
+------------------+-------------------------------------------------------------------------------------------+
| testcase: change | will-it-scale: will-it-scale.per_process_ops -2.1% regression |
| test machine | 104 threads 2 sockets (Skylake) with 192G memory |
| test parameters | cpufreq_governor=performance |
| | mode=process |
| | nr_task=100% |
| | test=futex2 |
+------------------+-------------------------------------------------------------------------------------------+
| testcase: change | will-it-scale: will-it-scale.per_process_ops 3.7% improvement |
| test machine | 104 threads 2 sockets (Skylake) with 192G memory |
| test parameters | cpufreq_governor=performance |
| | mode=process |
| | nr_task=100% |
| | test=futex3 |
+------------------+-------------------------------------------------------------------------------------------+
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 <yujie.liu@...el.com>
| Closes: https://lore.kernel.org/oe-lkp/202403041300.a7fb1462-yujie.liu@intel.com
Details are as below:
-------------------------------------------------------------------------------------------------->
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20240304/202403041300.a7fb1462-yujie.liu@intel.com
=========================================================================================
compiler/cpufreq_governor/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime:
gcc-12/performance/x86_64-rhel-8.3/100%/debian-12-x86_64-20240206.cgz/lkp-icl-2sp7/mutex/stress-ng/60s
commit:
a0e2dab44d ("x86/entry_32: Add VERW just before userspace transition")
6613d82e61 ("x86/bugs: Use ALTERNATIVE() instead of mds_user_clear static key")
a0e2dab44d22b913 6613d82e617dd7eb8b0c40b2fe3
---------------- ---------------------------
%stddev %change %stddev
\ | \
11556 ± 15% -24.2% 8755 ± 10% numa-meminfo.node0.Active
11529 ± 15% -24.5% 8702 ± 10% numa-meminfo.node0.Active(anon)
417861 -8.0% 384591 vmstat.system.cs
287897 -5.2% 273070 vmstat.system.in
182670 +9.0% 199032 stress-ng.mutex.nanosecs_per_mutex
18139421 -7.9% 16702171 stress-ng.mutex.ops
302318 -7.9% 278364 stress-ng.mutex.ops_per_sec
12040142 -7.3% 11161921 stress-ng.time.involuntary_context_switches
9424624 -7.6% 8707796 stress-ng.time.voluntary_context_switches
1.36 -5.7% 1.28 perf-stat.i.MPKI
0.31 -0.0 0.30 perf-stat.i.branch-miss-rate%
11445088 -4.4% 10944702 perf-stat.i.branch-misses
21081580 -6.7% 19679133 perf-stat.i.cache-misses
57754062 -6.7% 53909365 perf-stat.i.cache-references
429726 -7.6% 397018 perf-stat.i.context-switches
120047 -7.3% 111272 perf-stat.i.cpu-migrations
9063 +7.3% 9727 perf-stat.i.cycles-between-cache-misses
8.62 -7.5% 7.97 perf-stat.i.metric.K/sec
1.35 -5.9% 1.27 perf-stat.overall.MPKI
0.31 -0.0 0.30 perf-stat.overall.branch-miss-rate%
8893 +7.0% 9514 perf-stat.overall.cycles-between-cache-misses
11240262 -4.4% 10751121 perf-stat.ps.branch-misses
20680093 -6.7% 19302166 perf-stat.ps.cache-misses
56715466 -6.7% 52937829 perf-stat.ps.cache-references
422630 -7.6% 390583 perf-stat.ps.context-switches
118070 -7.3% 109477 perf-stat.ps.cpu-migrations
10.01 -0.5 9.54 perf-profile.calltrace.cycles-pp.find_lock_lowest_rq.push_rt_task.push_rt_tasks.finish_task_switch.__schedule
20.36 -0.3 20.04 perf-profile.calltrace.cycles-pp.push_rt_task.push_rt_tasks.finish_task_switch.__schedule.schedule
21.10 -0.3 20.84 perf-profile.calltrace.cycles-pp.__x64_sys_futex.do_syscall_64.entry_SYSCALL_64_after_hwframe
21.08 -0.3 20.83 perf-profile.calltrace.cycles-pp.do_futex.__x64_sys_futex.do_syscall_64.entry_SYSCALL_64_after_hwframe
21.86 -0.3 21.60 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe
21.85 -0.2 21.60 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe
17.30 -0.2 17.07 perf-profile.calltrace.cycles-pp.__futex_wait.futex_wait.do_futex.__x64_sys_futex.do_syscall_64
17.32 -0.2 17.09 perf-profile.calltrace.cycles-pp.futex_wait.do_futex.__x64_sys_futex.do_syscall_64.entry_SYSCALL_64_after_hwframe
17.15 -0.2 16.93 perf-profile.calltrace.cycles-pp.futex_wait_queue.__futex_wait.futex_wait.do_futex.__x64_sys_futex
17.11 -0.2 16.88 perf-profile.calltrace.cycles-pp.schedule.futex_wait_queue.__futex_wait.futex_wait.do_futex
17.10 -0.2 16.88 perf-profile.calltrace.cycles-pp.__schedule.schedule.futex_wait_queue.__futex_wait.futex_wait
4.16 -0.2 3.98 perf-profile.calltrace.cycles-pp.__sched_yield
3.72 -0.2 3.54 perf-profile.calltrace.cycles-pp.__schedule.schedule.__x64_sys_sched_yield.do_syscall_64.entry_SYSCALL_64_after_hwframe
3.73 -0.2 3.55 perf-profile.calltrace.cycles-pp.schedule.__x64_sys_sched_yield.do_syscall_64.entry_SYSCALL_64_after_hwframe.__sched_yield
4.10 -0.2 3.92 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__sched_yield
4.09 -0.2 3.91 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__sched_yield
3.99 -0.2 3.81 perf-profile.calltrace.cycles-pp.__x64_sys_sched_yield.do_syscall_64.entry_SYSCALL_64_after_hwframe.__sched_yield
15.61 -0.1 15.46 perf-profile.calltrace.cycles-pp.finish_task_switch.__schedule.schedule.futex_wait_queue.__futex_wait
2.64 -0.1 2.50 perf-profile.calltrace.cycles-pp.push_rt_tasks.finish_task_switch.__schedule.schedule.__x64_sys_sched_yield
14.86 -0.1 14.72 perf-profile.calltrace.cycles-pp.push_rt_tasks.finish_task_switch.__schedule.schedule.futex_wait_queue
2.95 -0.1 2.81 perf-profile.calltrace.cycles-pp.finish_task_switch.__schedule.schedule.__x64_sys_sched_yield.do_syscall_64
0.92 ± 3% -0.1 0.82 ± 2% perf-profile.calltrace.cycles-pp.cpupri_set.enqueue_task_rt.__sched_setscheduler._sched_setscheduler.do_sched_setscheduler
0.72 ± 4% -0.1 0.65 ± 2% perf-profile.calltrace.cycles-pp.cpupri_set.dequeue_rt_stack.dequeue_task_rt.__sched_setscheduler._sched_setscheduler
0.74 ± 4% -0.1 0.66 ± 2% perf-profile.calltrace.cycles-pp.dequeue_rt_stack.dequeue_task_rt.__sched_setscheduler._sched_setscheduler.do_sched_setscheduler
1.07 -0.0 1.04 perf-profile.calltrace.cycles-pp.task_rq_lock.__sched_setscheduler._sched_setscheduler.do_sched_setscheduler.__x64_sys_sched_setscheduler
3.76 -0.0 3.73 perf-profile.calltrace.cycles-pp.futex_wake.do_futex.__x64_sys_futex.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.01 -0.0 0.98 perf-profile.calltrace.cycles-pp._raw_spin_lock.task_rq_lock.__sched_setscheduler._sched_setscheduler.do_sched_setscheduler
0.59 +0.0 0.62 perf-profile.calltrace.cycles-pp.rt_mutex_adjust_pi.__sched_setscheduler._sched_setscheduler.do_sched_setscheduler.__x64_sys_sched_setscheduler
0.68 +0.0 0.71 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.__schedule.schedule_idle.do_idle
0.69 +0.0 0.72 perf-profile.calltrace.cycles-pp._raw_spin_lock.__schedule.schedule_idle.do_idle.cpu_startup_entry
5.78 +0.1 5.84 perf-profile.calltrace.cycles-pp.sysvec_call_function_single.asm_sysvec_call_function_single.__sched_setscheduler._sched_setscheduler.do_sched_setscheduler
5.86 +0.1 5.92 perf-profile.calltrace.cycles-pp.asm_sysvec_call_function_single.__sched_setscheduler._sched_setscheduler.do_sched_setscheduler.__x64_sys_sched_setscheduler
5.78 +0.1 5.84 perf-profile.calltrace.cycles-pp.__flush_smp_call_function_queue.__sysvec_call_function_single.sysvec_call_function_single.asm_sysvec_call_function_single.__sched_setscheduler
5.78 +0.1 5.84 perf-profile.calltrace.cycles-pp.__sysvec_call_function_single.sysvec_call_function_single.asm_sysvec_call_function_single.__sched_setscheduler._sched_setscheduler
6.87 +0.1 6.94 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
2.26 +0.1 2.34 perf-profile.calltrace.cycles-pp._raw_spin_lock.__sched_setscheduler._sched_setscheduler.do_sched_setscheduler.__x64_sys_sched_setscheduler
2.26 +0.1 2.33 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.__sched_setscheduler._sched_setscheduler.do_sched_setscheduler
8.53 +0.1 8.61 perf-profile.calltrace.cycles-pp.secondary_startup_64_no_verify
5.44 +0.1 5.52 perf-profile.calltrace.cycles-pp.activate_task.ttwu_do_activate.sched_ttwu_pending.__flush_smp_call_function_queue.__sysvec_call_function_single
8.45 +0.1 8.58 perf-profile.calltrace.cycles-pp.enqueue_task_rt.activate_task.ttwu_do_activate.sched_ttwu_pending.__flush_smp_call_function_queue
8.26 +0.1 8.39 perf-profile.calltrace.cycles-pp._raw_spin_lock.enqueue_task_rt.activate_task.ttwu_do_activate.sched_ttwu_pending
10.00 +0.2 10.16 perf-profile.calltrace.cycles-pp.activate_task.push_rt_task.push_rt_tasks.finish_task_switch.__schedule
10.11 +0.2 10.27 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.enqueue_task_rt.activate_task.ttwu_do_activate
9.69 +0.2 9.86 perf-profile.calltrace.cycles-pp.enqueue_task_rt.activate_task.push_rt_task.push_rt_tasks.finish_task_switch
9.30 +0.2 9.48 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.enqueue_task_rt.activate_task.push_rt_task
9.38 +0.2 9.56 perf-profile.calltrace.cycles-pp._raw_spin_lock.enqueue_task_rt.activate_task.push_rt_task.push_rt_tasks
47.73 +0.4 48.08 perf-profile.calltrace.cycles-pp.enqueue_task_rt.__sched_setscheduler._sched_setscheduler.do_sched_setscheduler.__x64_sys_sched_setscheduler
64.42 +0.4 64.78 perf-profile.calltrace.cycles-pp.__sched_setscheduler
64.32 +0.4 64.68 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__sched_setscheduler
64.31 +0.4 64.68 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__sched_setscheduler
59.94 +0.4 60.35 perf-profile.calltrace.cycles-pp.__x64_sys_sched_setscheduler.do_syscall_64.entry_SYSCALL_64_after_hwframe.__sched_setscheduler
59.94 +0.4 60.35 perf-profile.calltrace.cycles-pp.do_sched_setscheduler.__x64_sys_sched_setscheduler.do_syscall_64.entry_SYSCALL_64_after_hwframe.__sched_setscheduler
59.64 +0.4 60.05 perf-profile.calltrace.cycles-pp.__sched_setscheduler._sched_setscheduler.do_sched_setscheduler.__x64_sys_sched_setscheduler.do_syscall_64
59.82 +0.4 60.24 perf-profile.calltrace.cycles-pp._sched_setscheduler.do_sched_setscheduler.__x64_sys_sched_setscheduler.do_syscall_64.entry_SYSCALL_64_after_hwframe
46.02 +0.4 46.45 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.enqueue_task_rt.__sched_setscheduler._sched_setscheduler
46.37 +0.4 46.82 perf-profile.calltrace.cycles-pp._raw_spin_lock.enqueue_task_rt.__sched_setscheduler._sched_setscheduler.do_sched_setscheduler
11.13 -0.5 10.60 perf-profile.children.cycles-pp.find_lock_lowest_rq
25.80 -0.4 25.37 perf-profile.children.cycles-pp.schedule
27.01 -0.4 26.60 perf-profile.children.cycles-pp.__schedule
22.66 -0.4 22.28 perf-profile.children.cycles-pp.push_rt_task
22.81 -0.3 22.48 perf-profile.children.cycles-pp.finish_task_switch
21.45 -0.3 21.13 perf-profile.children.cycles-pp.push_rt_tasks
21.10 -0.3 20.84 perf-profile.children.cycles-pp.__x64_sys_futex
21.08 -0.3 20.83 perf-profile.children.cycles-pp.do_futex
17.30 -0.2 17.07 perf-profile.children.cycles-pp.__futex_wait
2.20 ± 3% -0.2 1.97 ± 2% perf-profile.children.cycles-pp.cpupri_set
17.32 -0.2 17.09 perf-profile.children.cycles-pp.futex_wait
17.15 -0.2 16.93 perf-profile.children.cycles-pp.futex_wait_queue
4.18 -0.2 3.99 perf-profile.children.cycles-pp.__sched_yield
3.99 -0.2 3.81 perf-profile.children.cycles-pp.__x64_sys_sched_yield
0.94 ± 4% -0.1 0.85 ± 2% perf-profile.children.cycles-pp.dequeue_rt_stack
0.50 ± 5% -0.1 0.43 ± 3% perf-profile.children.cycles-pp.find_lowest_rq
0.46 ± 5% -0.1 0.40 ± 4% perf-profile.children.cycles-pp.cpupri_find_fitness
0.82 -0.0 0.78 perf-profile.children.cycles-pp.task_woken_rt
0.32 ± 2% -0.0 0.28 ± 3% perf-profile.children.cycles-pp.pull_rt_task
0.31 ± 2% -0.0 0.28 ± 2% perf-profile.children.cycles-pp.pick_next_task_rt
0.58 -0.0 0.55 perf-profile.children.cycles-pp.enqueue_pushable_task
3.76 -0.0 3.73 perf-profile.children.cycles-pp.futex_wake
0.11 ± 4% -0.0 0.10 ± 3% perf-profile.children.cycles-pp.balance_rt
0.43 -0.0 0.41 perf-profile.children.cycles-pp.rto_push_irq_work_func
0.14 ± 2% -0.0 0.13 perf-profile.children.cycles-pp.select_task_rq
0.13 ± 2% -0.0 0.12 perf-profile.children.cycles-pp.select_task_rq_rt
0.07 -0.0 0.06 perf-profile.children.cycles-pp.update_rt_rq_load_avg
0.26 +0.0 0.27 perf-profile.children.cycles-pp.irq_exit_rcu
0.59 +0.0 0.62 perf-profile.children.cycles-pp.rt_mutex_adjust_pi
0.49 ± 2% +0.0 0.53 perf-profile.children.cycles-pp.scheduler_tick
1.14 +0.0 1.18 perf-profile.children.cycles-pp.update_curr_rt
0.58 +0.0 0.63 perf-profile.children.cycles-pp.tick_nohz_highres_handler
0.58 +0.0 0.62 perf-profile.children.cycles-pp.update_process_times
0.62 +0.0 0.68 perf-profile.children.cycles-pp.hrtimer_interrupt
0.60 +0.1 0.65 perf-profile.children.cycles-pp.__hrtimer_run_queues
0.58 +0.1 0.63 perf-profile.children.cycles-pp.tick_sched_handle
0.62 +0.1 0.68 perf-profile.children.cycles-pp.__sysvec_apic_timer_interrupt
0.87 +0.1 0.93 perf-profile.children.cycles-pp.sysvec_apic_timer_interrupt
0.94 +0.1 1.00 perf-profile.children.cycles-pp.asm_sysvec_apic_timer_interrupt
8.53 +0.1 8.61 perf-profile.children.cycles-pp.cpu_startup_entry
8.53 +0.1 8.61 perf-profile.children.cycles-pp.secondary_startup_64_no_verify
8.53 +0.1 8.61 perf-profile.children.cycles-pp.do_idle
14.31 +0.1 14.44 perf-profile.children.cycles-pp.sched_ttwu_pending
13.62 +0.1 13.76 perf-profile.children.cycles-pp.ttwu_do_activate
23.84 +0.3 24.19 perf-profile.children.cycles-pp.activate_task
59.94 +0.4 60.36 perf-profile.children.cycles-pp.__x64_sys_sched_setscheduler
59.94 +0.4 60.35 perf-profile.children.cycles-pp.do_sched_setscheduler
59.82 +0.4 60.24 perf-profile.children.cycles-pp._sched_setscheduler
88.70 +0.5 89.18 perf-profile.children.cycles-pp._raw_spin_lock
87.93 +0.5 88.41 perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
71.06 +0.7 71.77 perf-profile.children.cycles-pp.enqueue_task_rt
124.24 +0.8 125.02 perf-profile.children.cycles-pp.__sched_setscheduler
2.19 ± 3% -0.2 1.96 ± 2% perf-profile.self.cycles-pp.cpupri_set
0.31 ± 6% -0.0 0.27 ± 3% perf-profile.self.cycles-pp.cpupri_find_fitness
0.30 ± 3% -0.0 0.27 ± 4% perf-profile.self.cycles-pp.pull_rt_task
0.26 ± 3% -0.0 0.23 ± 3% perf-profile.self.cycles-pp.pick_next_task_rt
0.54 -0.0 0.52 perf-profile.self.cycles-pp.enqueue_pushable_task
0.15 -0.0 0.14 perf-profile.self.cycles-pp.switch_mm_irqs_off
0.65 +0.0 0.67 perf-profile.self.cycles-pp._raw_spin_lock_irqsave
1.00 +0.0 1.04 perf-profile.self.cycles-pp.update_curr_rt
87.92 +0.5 88.40 perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
***************************************************************************************************
lkp-icl-2sp7: 64 threads 2 sockets Intel(R) Xeon(R) Gold 6346 CPU @ 3.10GHz (Ice Lake) with 256G memory
=========================================================================================
compiler/cpufreq_governor/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime:
gcc-12/performance/x86_64-rhel-8.3/100%/debian-12-x86_64-20240206.cgz/lkp-icl-2sp7/ptrace/stress-ng/60s
commit:
a0e2dab44d ("x86/entry_32: Add VERW just before userspace transition")
6613d82e61 ("x86/bugs: Use ALTERNATIVE() instead of mds_user_clear static key")
a0e2dab44d22b913 6613d82e617dd7eb8b0c40b2fe3
---------------- ---------------------------
%stddev %change %stddev
\ | \
1476651 -3.9% 1418563 vmstat.system.cs
46602054 -3.9% 44765510 stress-ng.ptrace.ops
776688 -3.9% 746080 stress-ng.ptrace.ops_per_sec
93178718 -3.9% 89501356 stress-ng.time.voluntary_context_switches
41454 ± 26% -69.0% 12835 ± 93% proc-vmstat.numa_pages_migrated
363994 ± 3% -5.7% 343290 ± 3% proc-vmstat.pgfree
41454 ± 26% -69.0% 12835 ± 93% proc-vmstat.pgmigrate_success
36755 ± 34% -41.9% 21353 ± 30% proc-vmstat.pgreuse
0.70 +0.1 0.75 ± 2% perf-stat.i.branch-miss-rate%
44257013 ± 2% +7.7% 47672895 ± 3% perf-stat.i.branch-misses
1534064 -4.0% 1472825 perf-stat.i.context-switches
24.03 -4.0% 23.08 perf-stat.i.metric.K/sec
0.68 ± 2% +0.1 0.73 ± 2% perf-stat.overall.branch-miss-rate%
43429354 ± 2% +7.7% 46789221 ± 2% perf-stat.ps.branch-misses
1506894 -3.9% 1447769 perf-stat.ps.context-switches
45.76 -0.5 45.22 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irq.cgroup_enter_frozen.ptrace_stop.ptrace_do_notify
45.99 -0.5 45.46 perf-profile.calltrace.cycles-pp._raw_spin_lock_irq.cgroup_enter_frozen.ptrace_stop.ptrace_do_notify.ptrace_notify
23.04 -0.3 22.74 perf-profile.calltrace.cycles-pp.cgroup_enter_frozen.ptrace_stop.ptrace_do_notify.ptrace_notify.syscall_trace_enter
23.04 -0.3 22.78 perf-profile.calltrace.cycles-pp.cgroup_enter_frozen.ptrace_stop.ptrace_do_notify.ptrace_notify.syscall_exit_to_user_mode_prepare
7.91 -0.0 7.88 perf-profile.calltrace.cycles-pp.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.getgid
0.61 +0.0 0.64 perf-profile.calltrace.cycles-pp.__schedule.schedule.do_wait.kernel_wait4.__do_sys_wait4
0.63 +0.0 0.66 perf-profile.calltrace.cycles-pp.schedule.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64
1.80 +0.1 1.85 perf-profile.calltrace.cycles-pp.do_wait.kernel_wait4.__do_sys_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.89 +0.1 1.94 perf-profile.calltrace.cycles-pp.kernel_wait4.__do_sys_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe.wait4
1.92 +0.1 1.98 perf-profile.calltrace.cycles-pp.__do_sys_wait4.do_syscall_64.entry_SYSCALL_64_after_hwframe.wait4
2.12 +0.1 2.19 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.wait4
2.13 +0.1 2.20 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.wait4
2.34 +0.1 2.42 perf-profile.calltrace.cycles-pp.wait4
1.24 +0.1 1.34 ± 3% perf-profile.calltrace.cycles-pp.__x64_sys_ptrace.do_syscall_64.entry_SYSCALL_64_after_hwframe.ptrace
1.27 +0.1 1.36 ± 3% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.ptrace
1.26 +0.1 1.36 ± 3% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.ptrace
1.34 +0.1 1.44 ± 2% perf-profile.calltrace.cycles-pp.ptrace
22.52 +0.3 22.84 perf-profile.calltrace.cycles-pp.cgroup_leave_frozen.ptrace_stop.ptrace_do_notify.ptrace_notify.syscall_trace_enter
44.96 +0.4 45.33 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irq.cgroup_leave_frozen.ptrace_stop.ptrace_do_notify
45.31 +0.4 45.72 perf-profile.calltrace.cycles-pp._raw_spin_lock_irq.cgroup_leave_frozen.ptrace_stop.ptrace_do_notify.ptrace_notify
46.10 -0.5 45.55 perf-profile.children.cycles-pp.cgroup_enter_frozen
90.76 -0.2 90.57 perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
0.25 +0.0 0.27 perf-profile.children.cycles-pp.switch_mm_irqs_off
0.16 ± 2% +0.0 0.17 ± 2% perf-profile.children.cycles-pp.asm_sysvec_apic_timer_interrupt
0.60 +0.0 0.63 ± 2% perf-profile.children.cycles-pp.ttwu_do_activate
1.80 +0.1 1.85 perf-profile.children.cycles-pp.do_wait
1.89 +0.1 1.95 perf-profile.children.cycles-pp.kernel_wait4
1.92 +0.1 1.98 perf-profile.children.cycles-pp.__do_sys_wait4
2.36 +0.1 2.44 perf-profile.children.cycles-pp.wait4
1.47 +0.1 1.56 perf-profile.children.cycles-pp.__schedule
1.50 +0.1 1.58 perf-profile.children.cycles-pp.schedule
1.24 +0.1 1.34 ± 3% perf-profile.children.cycles-pp.__x64_sys_ptrace
1.36 +0.1 1.46 ± 2% perf-profile.children.cycles-pp.ptrace
45.42 +0.4 45.82 perf-profile.children.cycles-pp.cgroup_leave_frozen
90.76 -0.2 90.57 perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
0.38 -0.0 0.37 perf-profile.self.cycles-pp.ptrace_stop
0.93 +0.1 1.02 perf-profile.self.cycles-pp._raw_spin_lock_irq
***************************************************************************************************
lkp-icl-2sp8: 64 threads 2 sockets Intel(R) Xeon(R) Gold 6346 CPU @ 3.10GHz (Ice Lake) with 256G memory
=========================================================================================
compiler/cpufreq_governor/disk/fs/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime:
gcc-12/performance/1HDD/btrfs/x86_64-rhel-8.3/100%/debian-12-x86_64-20240206.cgz/lkp-icl-2sp8/getdent/stress-ng/60s
commit:
a0e2dab44d ("x86/entry_32: Add VERW just before userspace transition")
6613d82e61 ("x86/bugs: Use ALTERNATIVE() instead of mds_user_clear static key")
a0e2dab44d22b913 6613d82e617dd7eb8b0c40b2fe3
---------------- ---------------------------
%stddev %change %stddev
\ | \
317900 ± 4% +51.9% 482822 ± 4% cpuidle..usage
3.05 +3.6% 3.15 iostat.cpu.user
2.49 ± 4% -0.1 2.38 ± 4% mpstat.cpu.all.idle%
15342 ± 3% +56.1% 23954 ± 3% vmstat.system.cs
178479 +2.4% 182761 vmstat.system.in
9197 ± 2% +47.8% 13598 ± 3% sched_debug.cpu.nr_switches.avg
23944 ± 6% +58.8% 38014 ± 6% sched_debug.cpu.nr_switches.max
5660 ± 12% +72.0% 9736 ± 4% sched_debug.cpu.nr_switches.stddev
58917432 ± 4% -40.0% 35337032 numa-numastat.node0.local_node
58973202 ± 4% -40.0% 35382357 numa-numastat.node0.numa_hit
37066235 +76.6% 65448120 numa-numastat.node1.local_node
37099580 +76.5% 65478720 numa-numastat.node1.numa_hit
269394 ± 4% -71.3% 77312 ± 28% numa-meminfo.node0.KReclaimable
269394 ± 4% -71.3% 77312 ± 28% numa-meminfo.node0.SReclaimable
387028 ± 2% -51.5% 187589 ± 12% numa-meminfo.node0.Slab
93129 ± 12% +194.7% 274479 ± 8% numa-meminfo.node1.KReclaimable
93129 ± 12% +194.7% 274479 ± 8% numa-meminfo.node1.SReclaimable
155845 ± 5% +120.5% 343568 ± 7% numa-meminfo.node1.Slab
67916 ± 3% -71.2% 19547 ± 28% numa-vmstat.node0.nr_slab_reclaimable
59072793 ± 4% -40.0% 35463515 numa-vmstat.node0.numa_hit
59017023 ± 4% -40.0% 35418189 numa-vmstat.node0.numa_local
23698 ± 13% +192.1% 69229 ± 9% numa-vmstat.node1.nr_slab_reclaimable
37209604 +76.6% 65720661 numa-vmstat.node1.numa_hit
37176256 +76.7% 65690060 numa-vmstat.node1.numa_local
9705 -9.2% 8816 stress-ng.getdent.nanosecs_per_getdents_call
1.17e+08 +5.8% 1.238e+08 stress-ng.getdent.ops
1949907 +5.8% 2063349 stress-ng.getdent.ops_per_sec
97203 ± 6% +12.9% 109764 stress-ng.time.involuntary_context_switches
85913623 +5.8% 90920658 stress-ng.time.minor_page_faults
82.78 ± 2% +6.7% 88.32 stress-ng.time.user_time
372113 ± 7% +74.4% 649143 ± 3% stress-ng.time.voluntary_context_switches
90376 -1.7% 88797 proc-vmstat.nr_slab_reclaimable
19745 ± 31% -26.3% 14551 ± 2% proc-vmstat.numa_hint_faults
11950 ± 41% -36.7% 7560 ± 7% proc-vmstat.numa_hint_faults_local
96087443 ± 3% +5.2% 1.011e+08 proc-vmstat.numa_hit
95998301 ± 3% +5.2% 1.01e+08 proc-vmstat.numa_local
1.012e+08 ± 3% +4.7% 1.059e+08 proc-vmstat.pgalloc_normal
86033810 +5.9% 91111926 proc-vmstat.pgfault
1.009e+08 ± 3% +4.7% 1.057e+08 proc-vmstat.pgfree
14992 ± 6% -8.3% 13744 proc-vmstat.pgreuse
3.29 -4.1% 3.15 perf-stat.i.MPKI
1.031e+10 +5.0% 1.082e+10 perf-stat.i.branch-instructions
77903770 +5.3% 82008784 perf-stat.i.branch-misses
45.24 -2.3 42.98 perf-stat.i.cache-miss-rate%
3.596e+08 ± 2% +6.5% 3.83e+08 perf-stat.i.cache-references
15896 ± 3% +56.8% 24926 ± 3% perf-stat.i.context-switches
4.51 -5.2% 4.27 perf-stat.i.cpi
339.16 ± 8% +30.7% 443.20 ± 4% perf-stat.i.cpu-migrations
4.991e+10 +5.0% 5.243e+10 perf-stat.i.instructions
0.24 +5.0% 0.25 perf-stat.i.ipc
44.19 +5.9% 46.82 perf-stat.i.metric.K/sec
1411214 +5.9% 1494386 perf-stat.i.minor-faults
1411214 +5.9% 1494386 perf-stat.i.page-faults
3.30 -3.7% 3.17 perf-stat.overall.MPKI
45.68 -2.3 43.40 perf-stat.overall.cache-miss-rate%
4.49 -4.6% 4.28 perf-stat.overall.cpi
0.22 +4.8% 0.23 perf-stat.overall.ipc
1.014e+10 +4.9% 1.063e+10 perf-stat.ps.branch-instructions
76113957 +5.3% 80174083 perf-stat.ps.branch-misses
3.541e+08 ± 2% +6.3% 3.765e+08 perf-stat.ps.cache-references
15523 ± 3% +56.4% 24284 ± 3% perf-stat.ps.context-switches
331.55 ± 9% +30.6% 433.03 ± 4% perf-stat.ps.cpu-migrations
4.907e+10 +4.9% 5.149e+10 perf-stat.ps.instructions
1388739 +5.8% 1468698 perf-stat.ps.minor-faults
1388739 +5.8% 1468698 perf-stat.ps.page-faults
3.005e+12 +4.2% 3.133e+12 perf-stat.total.instructions
59.17 -2.9 56.25 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.syscall
59.24 -2.9 56.31 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.syscall
59.68 -2.9 56.79 perf-profile.calltrace.cycles-pp.syscall
29.18 -1.5 27.70 perf-profile.calltrace.cycles-pp.__x64_sys_getdents64.do_syscall_64.entry_SYSCALL_64_after_hwframe.syscall
28.64 -1.5 27.16 perf-profile.calltrace.cycles-pp.iterate_dir.__x64_sys_getdents64.do_syscall_64.entry_SYSCALL_64_after_hwframe.syscall
29.82 -1.5 28.37 perf-profile.calltrace.cycles-pp.__x64_sys_getdents.do_syscall_64.entry_SYSCALL_64_after_hwframe.syscall
29.03 -1.4 27.58 perf-profile.calltrace.cycles-pp.iterate_dir.__x64_sys_getdents.do_syscall_64.entry_SYSCALL_64_after_hwframe.syscall
9.19 ± 3% -1.1 8.13 ± 2% perf-profile.calltrace.cycles-pp.proc_readdir_de.proc_tgid_net_readdir.iterate_dir.__x64_sys_getdents64.do_syscall_64
9.24 ± 3% -1.1 8.19 ± 2% perf-profile.calltrace.cycles-pp.proc_tgid_net_readdir.iterate_dir.__x64_sys_getdents64.do_syscall_64.entry_SYSCALL_64_after_hwframe
9.17 ± 3% -1.0 8.12 ± 2% perf-profile.calltrace.cycles-pp.proc_readdir_de.proc_tgid_net_readdir.iterate_dir.__x64_sys_getdents.do_syscall_64
9.25 ± 3% -1.0 8.21 ± 2% perf-profile.calltrace.cycles-pp.proc_tgid_net_readdir.iterate_dir.__x64_sys_getdents.do_syscall_64.entry_SYSCALL_64_after_hwframe
5.51 ± 4% -0.6 4.89 ± 2% perf-profile.calltrace.cycles-pp.proc_readdir_de.iterate_dir.__x64_sys_getdents64.do_syscall_64.entry_SYSCALL_64_after_hwframe
5.49 ± 3% -0.6 4.88 ± 2% perf-profile.calltrace.cycles-pp.proc_readdir_de.iterate_dir.__x64_sys_getdents.do_syscall_64.entry_SYSCALL_64_after_hwframe
4.22 ± 4% -0.5 3.72 ± 2% perf-profile.calltrace.cycles-pp._raw_read_lock.proc_readdir_de.proc_tgid_net_readdir.iterate_dir.__x64_sys_getdents64
4.20 ± 4% -0.5 3.71 ± 2% perf-profile.calltrace.cycles-pp._raw_read_lock.proc_readdir_de.proc_tgid_net_readdir.iterate_dir.__x64_sys_getdents
2.78 ± 4% -0.3 2.47 ± 2% perf-profile.calltrace.cycles-pp._raw_read_lock.proc_readdir_de.iterate_dir.__x64_sys_getdents64.do_syscall_64
2.77 ± 3% -0.3 2.47 ± 2% perf-profile.calltrace.cycles-pp._raw_read_lock.proc_readdir_de.iterate_dir.__x64_sys_getdents.do_syscall_64
0.90 ± 4% -0.1 0.80 ± 2% perf-profile.calltrace.cycles-pp._raw_read_lock.proc_lookup_de.proc_tgid_net_lookup.lookup_open.open_last_lookups
0.56 ± 2% +0.0 0.58 perf-profile.calltrace.cycles-pp.alloc_pages_mpol.vma_alloc_folio.do_anonymous_page.__handle_mm_fault.handle_mm_fault
0.62 ± 2% +0.0 0.64 perf-profile.calltrace.cycles-pp.vma_alloc_folio.do_anonymous_page.__handle_mm_fault.handle_mm_fault.do_user_addr_fault
0.56 +0.0 0.59 ± 2% perf-profile.calltrace.cycles-pp.d_alloc_parallel.lookup_open.open_last_lookups.path_openat.do_filp_open
0.76 ± 3% +0.1 0.81 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.new_inode.proc_get_inode.proc_lookup_de
0.65 ± 3% +0.1 0.71 ± 5% perf-profile.calltrace.cycles-pp.apparmor_file_free_security.security_file_free.__fput.__x64_sys_close.do_syscall_64
0.66 ± 3% +0.1 0.72 ± 5% perf-profile.calltrace.cycles-pp.security_file_free.__fput.__x64_sys_close.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.01 ± 2% +0.1 1.08 perf-profile.calltrace.cycles-pp._raw_spin_lock.new_inode.proc_get_inode.proc_lookup_de.proc_tgid_net_lookup
1.35 +0.1 1.43 perf-profile.calltrace.cycles-pp.new_inode.proc_get_inode.proc_lookup_de.proc_tgid_net_lookup.lookup_open
1.40 +0.1 1.49 perf-profile.calltrace.cycles-pp.proc_get_inode.proc_lookup_de.proc_tgid_net_lookup.lookup_open.open_last_lookups
0.73 +0.1 0.82 perf-profile.calltrace.cycles-pp.may_open.do_open.path_openat.do_filp_open.do_sys_openat2
0.67 +0.1 0.75 perf-profile.calltrace.cycles-pp.inode_permission.may_open.do_open.path_openat.do_filp_open
1.91 ± 3% +0.1 2.03 ± 2% perf-profile.calltrace.cycles-pp.evict.__dentry_kill.dput.__fput.__x64_sys_close
0.81 ± 3% +0.1 0.94 ± 4% perf-profile.calltrace.cycles-pp.apparmor_file_alloc_security.security_file_alloc.init_file.alloc_empty_file.path_openat
1.10 ± 3% +0.1 1.23 ± 2% perf-profile.calltrace.cycles-pp._raw_spin_lock.evict.__dentry_kill.dput.__fput
1.13 ± 3% +0.1 1.26 ± 3% perf-profile.calltrace.cycles-pp.init_file.alloc_empty_file.path_openat.do_filp_open.do_sys_openat2
0.85 ± 3% +0.1 0.98 ± 3% perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.evict.__dentry_kill.dput
0.89 ± 3% +0.1 1.04 ± 3% perf-profile.calltrace.cycles-pp.security_file_alloc.init_file.alloc_empty_file.path_openat.do_filp_open
1.47 ± 3% +0.1 1.61 ± 3% perf-profile.calltrace.cycles-pp.alloc_empty_file.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
0.66 +0.2 0.86 ± 22% perf-profile.calltrace.cycles-pp.__legitimize_path.try_to_unlazy.link_path_walk.path_openat.do_filp_open
0.67 +0.2 0.87 ± 22% perf-profile.calltrace.cycles-pp.try_to_unlazy.link_path_walk.path_openat.do_filp_open.do_sys_openat2
0.88 ± 8% +0.2 1.10 ± 5% perf-profile.calltrace.cycles-pp.up_read.kernfs_dop_revalidate.lookup_fast.walk_component.link_path_walk
1.49 +0.2 1.73 ± 7% perf-profile.calltrace.cycles-pp.lookup_fast.open_last_lookups.path_openat.do_filp_open.do_sys_openat2
1.30 ± 5% +0.3 1.56 ± 5% perf-profile.calltrace.cycles-pp.apparmor_file_open.security_file_open.do_dentry_open.do_open.path_openat
1.31 ± 4% +0.3 1.57 ± 5% perf-profile.calltrace.cycles-pp.security_file_open.do_dentry_open.do_open.path_openat.do_filp_open
2.39 ± 3% +0.3 2.65 ± 4% perf-profile.calltrace.cycles-pp.do_dentry_open.do_open.path_openat.do_filp_open.do_sys_openat2
1.49 ± 2% +0.3 1.76 ± 5% perf-profile.calltrace.cycles-pp.up_read.kernfs_iop_permission.inode_permission.link_path_walk.path_openat
1.53 ± 5% +0.3 1.81 ± 2% perf-profile.calltrace.cycles-pp.down_read.kernfs_iop_permission.inode_permission.link_path_walk.path_openat
1.09 ± 10% +0.3 1.40 ± 2% perf-profile.calltrace.cycles-pp.up_read.kernfs_fop_readdir.iterate_dir.__x64_sys_getdents.do_syscall_64
1.08 ± 11% +0.3 1.40 ± 2% perf-profile.calltrace.cycles-pp.up_read.kernfs_fop_readdir.iterate_dir.__x64_sys_getdents64.do_syscall_64
1.22 ± 9% +0.3 1.56 ± 4% perf-profile.calltrace.cycles-pp.down_read.kernfs_dop_revalidate.lookup_fast.walk_component.link_path_walk
1.09 ± 2% +0.3 1.44 ± 24% perf-profile.calltrace.cycles-pp.dput.terminate_walk.path_openat.do_filp_open.do_sys_openat2
1.13 ± 2% +0.4 1.48 ± 23% perf-profile.calltrace.cycles-pp.terminate_walk.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
1.43 ± 9% +0.4 1.81 perf-profile.calltrace.cycles-pp.down_read.kernfs_fop_readdir.iterate_dir.__x64_sys_getdents.do_syscall_64
1.41 ± 9% +0.4 1.81 ± 2% perf-profile.calltrace.cycles-pp.down_read.kernfs_fop_readdir.iterate_dir.__x64_sys_getdents64.do_syscall_64
0.17 ±141% +0.4 0.58 ± 2% perf-profile.calltrace.cycles-pp.kernfs_dop_revalidate.lookup_fast.open_last_lookups.path_openat.do_filp_open
3.51 ± 2% +0.4 3.93 ± 3% perf-profile.calltrace.cycles-pp.do_open.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
0.17 ±141% +0.5 0.70 ± 28% perf-profile.calltrace.cycles-pp.lockref_get_not_dead.__legitimize_path.try_to_unlazy.link_path_walk.path_openat
0.00 +0.6 0.56 perf-profile.calltrace.cycles-pp.kernfs_iop_permission.inode_permission.may_open.do_open.path_openat
2.14 ± 8% +0.6 2.71 ± 4% perf-profile.calltrace.cycles-pp.kernfs_dop_revalidate.lookup_fast.walk_component.link_path_walk.path_openat
3.14 ± 3% +0.6 3.71 ± 4% perf-profile.calltrace.cycles-pp.kernfs_iop_permission.inode_permission.link_path_walk.path_openat.do_filp_open
4.18 ± 2% +0.6 4.77 ± 3% perf-profile.calltrace.cycles-pp.inode_permission.link_path_walk.path_openat.do_filp_open.do_sys_openat2
4.89 ± 4% +0.6 5.50 ± 2% perf-profile.calltrace.cycles-pp.walk_component.link_path_walk.path_openat.do_filp_open.do_sys_openat2
3.29 ± 5% +0.6 3.93 ± 3% perf-profile.calltrace.cycles-pp.lookup_fast.walk_component.link_path_walk.path_openat.do_filp_open
3.23 ± 7% +0.7 3.96 perf-profile.calltrace.cycles-pp.kernfs_fop_readdir.iterate_dir.__x64_sys_getdents.do_syscall_64.entry_SYSCALL_64_after_hwframe
3.22 ± 8% +0.7 3.96 ± 2% perf-profile.calltrace.cycles-pp.kernfs_fop_readdir.iterate_dir.__x64_sys_getdents64.do_syscall_64.entry_SYSCALL_64_after_hwframe
10.92 ± 2% +1.4 12.34 ± 2% perf-profile.calltrace.cycles-pp.link_path_walk.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
24.85 +2.5 27.32 perf-profile.calltrace.cycles-pp.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat.do_syscall_64
24.92 +2.5 27.39 perf-profile.calltrace.cycles-pp.do_filp_open.do_sys_openat2.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe
26.02 +2.5 28.52 perf-profile.calltrace.cycles-pp.do_sys_openat2.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe.open64
26.05 +2.5 28.55 perf-profile.calltrace.cycles-pp.__x64_sys_openat.do_syscall_64.entry_SYSCALL_64_after_hwframe.open64
26.11 +2.5 28.61 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.open64
26.13 +2.5 28.63 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.open64
26.32 +2.5 28.83 perf-profile.calltrace.cycles-pp.open64
29.41 ± 3% -3.3 26.07 ± 2% perf-profile.children.cycles-pp.proc_readdir_de
57.69 -2.9 54.77 perf-profile.children.cycles-pp.iterate_dir
59.85 -2.9 56.97 perf-profile.children.cycles-pp.syscall
18.49 ± 3% -2.1 16.39 ± 2% perf-profile.children.cycles-pp.proc_tgid_net_readdir
15.47 ± 4% -1.8 13.70 ± 2% perf-profile.children.cycles-pp._raw_read_lock
29.19 -1.5 27.70 perf-profile.children.cycles-pp.__x64_sys_getdents64
29.83 -1.4 28.38 perf-profile.children.cycles-pp.__x64_sys_getdents
94.11 -0.3 93.85 perf-profile.children.cycles-pp.do_syscall_64
94.19 -0.3 93.94 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
0.89 ± 2% -0.0 0.86 ± 3% perf-profile.children.cycles-pp.proc_readfd_common
0.08 ± 6% -0.0 0.05 perf-profile.children.cycles-pp.main
0.08 ± 6% -0.0 0.05 perf-profile.children.cycles-pp.run_builtin
0.07 ± 11% -0.0 0.05 perf-profile.children.cycles-pp.__cmd_record
0.07 ± 11% -0.0 0.05 perf-profile.children.cycles-pp.cmd_record
0.12 ± 4% -0.0 0.10 ± 4% perf-profile.children.cycles-pp._raw_spin_lock_irq
0.10 +0.0 0.11 perf-profile.children.cycles-pp.atime_needs_update
0.05 +0.0 0.06 perf-profile.children.cycles-pp.nd_jump_root
0.09 +0.0 0.10 perf-profile.children.cycles-pp.__init_rwsem
0.17 +0.0 0.18 perf-profile.children.cycles-pp.generic_permission
0.06 +0.0 0.07 perf-profile.children.cycles-pp.proc_pid_readdir
0.06 +0.0 0.07 perf-profile.children.cycles-pp.process_measurement
0.12 +0.0 0.13 perf-profile.children.cycles-pp.uncharge_batch
0.18 +0.0 0.19 perf-profile.children.cycles-pp.vsnprintf
0.22 ± 2% +0.0 0.24 perf-profile.children.cycles-pp.native_irq_return_iret
0.19 ± 2% +0.0 0.21 ± 2% perf-profile.children.cycles-pp.stress_getdents_dir
0.17 +0.0 0.18 ± 2% perf-profile.children.cycles-pp.memchr
0.08 +0.0 0.09 ± 5% perf-profile.children.cycles-pp.path_init
0.08 ± 5% +0.0 0.10 ± 4% perf-profile.children.cycles-pp.locks_remove_posix
0.24 +0.0 0.25 perf-profile.children.cycles-pp.__memcg_slab_post_alloc_hook
0.38 +0.0 0.40 perf-profile.children.cycles-pp.getname_flags
0.10 +0.0 0.12 ± 4% perf-profile.children.cycles-pp.page_counter_uncharge
0.14 ± 3% +0.0 0.16 perf-profile.children.cycles-pp.__mem_cgroup_uncharge_list
0.10 +0.0 0.12 perf-profile.children.cycles-pp.percpu_counter_add_batch
0.19 ± 2% +0.0 0.21 ± 2% perf-profile.children.cycles-pp.inode_init_always
0.20 ± 2% +0.0 0.22 ± 2% perf-profile.children.cycles-pp.mod_objcg_state
0.33 +0.0 0.35 perf-profile.children.cycles-pp.__cond_resched
0.18 ± 4% +0.0 0.20 ± 2% perf-profile.children.cycles-pp.strlcat
0.56 +0.0 0.58 perf-profile.children.cycles-pp.alloc_inode
0.52 +0.0 0.55 ± 2% perf-profile.children.cycles-pp.d_alloc
0.66 +0.0 0.69 perf-profile.children.cycles-pp.__slab_free
0.12 +0.0 0.15 ± 18% perf-profile.children.cycles-pp.try_to_unlazy_next
0.31 +0.0 0.34 perf-profile.children.cycles-pp.__memcg_slab_free_hook
0.70 +0.0 0.74 perf-profile.children.cycles-pp.d_alloc_parallel
0.77 +0.0 0.81 perf-profile.children.cycles-pp.filldir64
0.77 +0.0 0.82 ± 2% perf-profile.children.cycles-pp.filldir
0.11 ± 4% +0.1 0.17 ± 7% perf-profile.children.cycles-pp.security_current_getsecid_subj
0.00 +0.1 0.05 ± 8% perf-profile.children.cycles-pp.cpu_startup_entry
0.00 +0.1 0.05 ± 8% perf-profile.children.cycles-pp.do_idle
0.00 +0.1 0.05 ± 8% perf-profile.children.cycles-pp.secondary_startup_64_no_verify
0.00 +0.1 0.05 ± 8% perf-profile.children.cycles-pp.start_secondary
0.10 ± 4% +0.1 0.16 ± 7% perf-profile.children.cycles-pp.apparmor_current_getsecid_subj
1.04 +0.1 1.09 perf-profile.children.cycles-pp.rcu_do_batch
1.04 +0.1 1.10 perf-profile.children.cycles-pp.rcu_core
1.05 +0.1 1.11 perf-profile.children.cycles-pp.__do_softirq
0.65 ± 4% +0.1 0.71 ± 4% perf-profile.children.cycles-pp.apparmor_file_free_security
0.66 ± 3% +0.1 0.72 ± 4% perf-profile.children.cycles-pp.security_file_free
0.19 ± 4% +0.1 0.25 ± 6% perf-profile.children.cycles-pp.ima_file_check
1.19 +0.1 1.27 perf-profile.children.cycles-pp.kmem_cache_free
0.43 ± 13% +0.1 0.51 ± 5% perf-profile.children.cycles-pp.smpboot_thread_fn
0.44 ± 13% +0.1 0.52 ± 5% perf-profile.children.cycles-pp.kthread
0.44 ± 13% +0.1 0.52 ± 5% perf-profile.children.cycles-pp.ret_from_fork
0.44 ± 13% +0.1 0.52 ± 5% perf-profile.children.cycles-pp.ret_from_fork_asm
0.42 ± 15% +0.1 0.51 ± 5% perf-profile.children.cycles-pp.run_ksoftirqd
0.74 +0.1 0.83 perf-profile.children.cycles-pp.may_open
1.92 ± 3% +0.1 2.04 ± 2% perf-profile.children.cycles-pp.evict
1.14 ± 3% +0.1 1.27 ± 3% perf-profile.children.cycles-pp.init_file
0.81 ± 3% +0.1 0.95 ± 4% perf-profile.children.cycles-pp.apparmor_file_alloc_security
0.90 ± 2% +0.1 1.04 ± 3% perf-profile.children.cycles-pp.security_file_alloc
1.47 ± 3% +0.1 1.61 ± 3% perf-profile.children.cycles-pp.alloc_empty_file
2.19 ± 2% +0.2 2.34 perf-profile.children.cycles-pp.new_inode
2.26 ± 2% +0.2 2.42 perf-profile.children.cycles-pp.proc_get_inode
0.53 ± 4% +0.2 0.70 ± 7% perf-profile.children.cycles-pp.apparmor_file_permission
0.55 ± 5% +0.2 0.72 ± 6% perf-profile.children.cycles-pp.security_file_permission
1.30 ± 5% +0.3 1.56 ± 5% perf-profile.children.cycles-pp.apparmor_file_open
1.32 ± 4% +0.3 1.57 ± 5% perf-profile.children.cycles-pp.security_file_open
2.40 ± 4% +0.3 2.66 ± 4% perf-profile.children.cycles-pp.do_dentry_open
1.35 +0.3 1.69 ± 19% perf-profile.children.cycles-pp.try_to_unlazy
1.14 ± 2% +0.4 1.50 ± 23% perf-profile.children.cycles-pp.terminate_walk
1.40 +0.4 1.77 ± 20% perf-profile.children.cycles-pp.__legitimize_path
1.00 ± 2% +0.4 1.39 ± 26% perf-profile.children.cycles-pp.lockref_get_not_dead
7.02 ± 3% +0.4 7.42 ± 3% perf-profile.children.cycles-pp.dput
3.52 ± 2% +0.4 3.94 ± 3% perf-profile.children.cycles-pp.do_open
4.91 ± 4% +0.6 5.53 ± 2% perf-profile.children.cycles-pp.walk_component
3.62 ± 3% +0.7 4.29 ± 3% perf-profile.children.cycles-pp.kernfs_iop_permission
4.87 ± 2% +0.7 5.54 ± 2% perf-profile.children.cycles-pp.inode_permission
2.61 ± 8% +0.7 3.30 ± 4% perf-profile.children.cycles-pp.kernfs_dop_revalidate
4.80 ± 4% +0.9 5.69 ± 3% perf-profile.children.cycles-pp.lookup_fast
5.71 ± 6% +1.2 6.89 ± 3% perf-profile.children.cycles-pp.up_read
10.94 ± 2% +1.4 12.38 ± 2% perf-profile.children.cycles-pp.link_path_walk
6.48 ± 8% +1.5 7.95 ± 2% perf-profile.children.cycles-pp.kernfs_fop_readdir
6.24 ± 7% +1.5 7.75 ± 2% perf-profile.children.cycles-pp.down_read
24.88 +2.5 27.36 perf-profile.children.cycles-pp.path_openat
24.94 +2.5 27.42 perf-profile.children.cycles-pp.do_filp_open
26.06 +2.5 28.56 perf-profile.children.cycles-pp.do_sys_openat2
26.07 +2.5 28.58 perf-profile.children.cycles-pp.__x64_sys_openat
26.37 +2.5 28.88 perf-profile.children.cycles-pp.open64
15.34 ± 4% -1.8 13.59 ± 2% perf-profile.self.cycles-pp._raw_read_lock
13.66 ± 4% -1.7 11.95 ± 2% perf-profile.self.cycles-pp.proc_readdir_de
1.61 ± 4% -0.2 1.46 ± 2% perf-profile.self.cycles-pp.proc_lookup_de
0.12 ± 4% -0.0 0.10 ± 4% perf-profile.self.cycles-pp._raw_spin_lock_irq
0.10 +0.0 0.11 perf-profile.self.cycles-pp.page_counter_uncharge
0.10 +0.0 0.11 perf-profile.self.cycles-pp.percpu_counter_add_batch
0.05 +0.0 0.06 perf-profile.self.cycles-pp.refill_obj_stock
0.08 +0.0 0.09 perf-profile.self.cycles-pp.number
0.09 +0.0 0.10 perf-profile.self.cycles-pp.pid_revalidate
0.19 ± 2% +0.0 0.21 ± 2% perf-profile.self.cycles-pp.__cond_resched
0.26 +0.0 0.28 perf-profile.self.cycles-pp.entry_SYSRETQ_unsafe_stack
0.22 ± 2% +0.0 0.24 perf-profile.self.cycles-pp.native_irq_return_iret
0.12 +0.0 0.13 ± 3% perf-profile.self.cycles-pp.__memcg_slab_free_hook
0.13 +0.0 0.14 ± 3% perf-profile.self.cycles-pp.generic_permission
0.08 +0.0 0.09 ± 5% perf-profile.self.cycles-pp.locks_remove_posix
0.09 ± 5% +0.0 0.10 perf-profile.self.cycles-pp.__call_rcu_common
0.18 ± 2% +0.0 0.19 perf-profile.self.cycles-pp.proc_tgid_net_lookup
0.17 ± 2% +0.0 0.18 ± 2% perf-profile.self.cycles-pp.mod_objcg_state
0.13 ± 3% +0.0 0.15 ± 3% perf-profile.self.cycles-pp.inode_init_always
0.16 ± 3% +0.0 0.18 ± 2% perf-profile.self.cycles-pp.do_syscall_64
0.17 ± 2% +0.0 0.19 ± 2% perf-profile.self.cycles-pp.get_proc_task_net
0.23 ± 2% +0.0 0.25 perf-profile.self.cycles-pp.syscall
0.65 +0.0 0.68 perf-profile.self.cycles-pp.__slab_free
0.38 ± 2% +0.0 0.41 ± 6% perf-profile.self.cycles-pp.inode_permission
0.56 +0.0 0.60 perf-profile.self.cycles-pp.filldir
0.84 ± 2% +0.0 0.89 ± 2% perf-profile.self.cycles-pp.lockref_get_not_dead
0.55 +0.0 0.60 ± 2% perf-profile.self.cycles-pp.filldir64
0.00 +0.1 0.05 perf-profile.self.cycles-pp.proc_tgid_net_readdir
0.10 ± 4% +0.1 0.16 ± 7% perf-profile.self.cycles-pp.apparmor_current_getsecid_subj
0.65 ± 3% +0.1 0.71 ± 5% perf-profile.self.cycles-pp.apparmor_file_free_security
0.80 ± 3% +0.1 0.93 ± 4% perf-profile.self.cycles-pp.apparmor_file_alloc_security
0.49 ± 5% +0.2 0.66 ± 6% perf-profile.self.cycles-pp.apparmor_file_permission
1.29 ± 4% +0.3 1.54 ± 5% perf-profile.self.cycles-pp.apparmor_file_open
5.66 ± 6% +1.2 6.84 ± 3% perf-profile.self.cycles-pp.up_read
6.15 ± 7% +1.5 7.66 ± 2% perf-profile.self.cycles-pp.down_read
***************************************************************************************************
lkp-skl-fpga01: 104 threads 2 sockets (Skylake) with 192G memory
=========================================================================================
compiler/cpufreq_governor/kconfig/mode/nr_task/rootfs/tbox_group/test/testcase:
gcc-12/performance/x86_64-rhel-8.3/thread/100%/debian-12-x86_64-20240206.cgz/lkp-skl-fpga01/futex4/will-it-scale
commit:
a0e2dab44d ("x86/entry_32: Add VERW just before userspace transition")
6613d82e61 ("x86/bugs: Use ALTERNATIVE() instead of mds_user_clear static key")
a0e2dab44d22b913 6613d82e617dd7eb8b0c40b2fe3
---------------- ---------------------------
%stddev %change %stddev
\ | \
33.61 +1.2% 34.01 boot-time.boot
3130 +1.3% 3171 boot-time.idle
70814196 +4.0% 73672365 will-it-scale.104.threads
680905 +4.0% 708387 will-it-scale.per_thread_ops
70814196 +4.0% 73672365 will-it-scale.workload
89530 -1.7% 88005 proc-vmstat.nr_active_anon
92711 -1.7% 91127 proc-vmstat.nr_shmem
89530 -1.7% 88005 proc-vmstat.nr_zone_active_anon
76969 -1.7% 75654 proc-vmstat.pgactivate
1086126 -1.8% 1066713 proc-vmstat.pgalloc_normal
40426 ± 3% +10.6% 44714 ± 4% proc-vmstat.pgreuse
10727 ± 61% +52.8% 16392 ± 5% sched_debug.cfs_rq:/.load_avg.max
0.07 ± 12% -18.3% 0.06 ± 3% sched_debug.cfs_rq:/.nr_running.stddev
0.92 ± 74% +383.2% 4.45 ± 30% sched_debug.cfs_rq:/.removed.runnable_avg.avg
6.89 ± 72% +161.3% 18.00 ± 17% sched_debug.cfs_rq:/.removed.runnable_avg.stddev
0.92 ± 74% +383.1% 4.45 ± 30% sched_debug.cfs_rq:/.removed.util_avg.avg
6.89 ± 72% +161.2% 17.99 ± 17% sched_debug.cfs_rq:/.removed.util_avg.stddev
1259 ± 2% -17.5% 1039 ± 16% sched_debug.cfs_rq:/.util_est.max
3796 ± 3% +29.1% 4902 ± 12% sched_debug.cpu.max_idle_balance_cost.stddev
0.00 +11.9% 0.00 ± 2% sched_debug.cpu.next_balance.stddev
876.78 ± 7% +10.9% 972.39 ± 7% sched_debug.cpu.nr_switches.min
6.71 ± 8% -16.5% 5.60 ± 4% sched_debug.cpu.nr_uninterruptible.stddev
6.114e+09 +4.3% 6.376e+09 perf-stat.i.branch-instructions
1.35 +0.2 1.53 perf-stat.i.branch-miss-rate%
81670984 +19.2% 97330429 perf-stat.i.branch-misses
6.05 -3.3% 5.85 perf-stat.i.cpi
4.754e+10 +4.0% 4.944e+10 perf-stat.i.instructions
0.17 +2.9% 0.17 perf-stat.i.ipc
1.34 +0.2 1.53 perf-stat.overall.branch-miss-rate%
6.07 -3.5% 5.86 perf-stat.overall.cpi
0.16 +3.6% 0.17 perf-stat.overall.ipc
6.094e+09 +4.3% 6.354e+09 perf-stat.ps.branch-instructions
81368878 +19.2% 96977141 perf-stat.ps.branch-misses
4.738e+10 +4.0% 4.928e+10 perf-stat.ps.instructions
0.03 ± 47% +57.9% 0.05 ± 9% perf-stat.ps.major-faults
1.439e+13 +3.6% 1.491e+13 perf-stat.total.instructions
44.04 -21.1 22.93 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.syscall
55.72 -19.2 36.49 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.syscall
19.53 -18.4 1.17 ± 2% perf-profile.calltrace.cycles-pp.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.syscall
20.23 -6.0 14.24 perf-profile.calltrace.cycles-pp.futex_wait.do_futex.__x64_sys_futex.do_syscall_64.entry_SYSCALL_64_after_hwframe
22.07 -5.9 16.15 perf-profile.calltrace.cycles-pp.__x64_sys_futex.do_syscall_64.entry_SYSCALL_64_after_hwframe.syscall
20.74 -5.9 14.83 perf-profile.calltrace.cycles-pp.do_futex.__x64_sys_futex.do_syscall_64.entry_SYSCALL_64_after_hwframe.syscall
6.35 -4.0 2.31 ± 2% perf-profile.calltrace.cycles-pp.__get_user_nocheck_4.futex_get_value_locked.futex_wait_setup.__futex_wait.futex_wait
6.88 -3.8 3.10 perf-profile.calltrace.cycles-pp.futex_get_value_locked.futex_wait_setup.__futex_wait.futex_wait.do_futex
29.51 -2.6 26.91 perf-profile.calltrace.cycles-pp.syscall_return_via_sysret.syscall
12.81 -2.6 10.22 perf-profile.calltrace.cycles-pp.futex_wait_setup.__futex_wait.futex_wait.do_futex.__x64_sys_futex
13.99 -2.4 11.54 perf-profile.calltrace.cycles-pp.__futex_wait.futex_wait.do_futex.__x64_sys_futex.do_syscall_64
0.64 +0.1 0.69 perf-profile.calltrace.cycles-pp.get_futex_key.futex_wait_setup.__futex_wait.futex_wait.do_futex
0.76 +0.1 0.82 perf-profile.calltrace.cycles-pp.futex_q_unlock.futex_wait_setup.__futex_wait.futex_wait.do_futex
99.58 +0.1 99.65 perf-profile.calltrace.cycles-pp.syscall
0.97 +0.2 1.19 perf-profile.calltrace.cycles-pp.futex_hash.futex_q_lock.futex_wait_setup.__futex_wait.futex_wait
8.56 +0.6 9.13 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64.syscall
1.21 +0.8 2.00 perf-profile.calltrace.cycles-pp._raw_spin_lock.futex_q_lock.futex_wait_setup.__futex_wait.futex_wait
3.64 +0.9 4.58 ± 2% perf-profile.calltrace.cycles-pp.futex_q_lock.futex_wait_setup.__futex_wait.futex_wait.do_futex
7.91 +2.7 10.62 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_safe_stack.syscall
0.00 +17.5 17.48 perf-profile.calltrace.cycles-pp.entry_SYSRETQ_unsafe_stack.syscall
44.20 -21.7 22.46 perf-profile.children.cycles-pp.do_syscall_64
56.13 -18.9 37.23 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
19.74 -18.5 1.26 ± 2% perf-profile.children.cycles-pp.syscall_exit_to_user_mode
20.38 -6.0 14.36 perf-profile.children.cycles-pp.futex_wait
22.12 -5.9 16.21 perf-profile.children.cycles-pp.__x64_sys_futex
20.80 -5.9 14.90 perf-profile.children.cycles-pp.do_futex
6.53 -3.9 2.68 ± 2% perf-profile.children.cycles-pp.__get_user_nocheck_4
7.08 -3.8 3.29 ± 2% perf-profile.children.cycles-pp.futex_get_value_locked
29.66 -2.6 27.09 perf-profile.children.cycles-pp.syscall_return_via_sysret
13.00 -2.5 10.47 perf-profile.children.cycles-pp.futex_wait_setup
14.01 -2.4 11.58 perf-profile.children.cycles-pp.__futex_wait
0.18 ± 2% -0.1 0.13 ± 6% perf-profile.children.cycles-pp.amd_clear_divider
0.18 ± 2% -0.0 0.13 ± 3% perf-profile.children.cycles-pp.futex_setup_timer
0.44 -0.0 0.41 ± 3% perf-profile.children.cycles-pp.syscall_exit_to_user_mode_prepare
0.05 +0.0 0.06 perf-profile.children.cycles-pp.syscall@plt
0.13 +0.0 0.16 ± 3% perf-profile.children.cycles-pp.testcase
0.80 +0.1 0.86 perf-profile.children.cycles-pp.futex_q_unlock
0.67 +0.1 0.72 perf-profile.children.cycles-pp.get_futex_key
0.98 +0.2 1.21 perf-profile.children.cycles-pp.futex_hash
1.26 +0.9 2.13 perf-profile.children.cycles-pp._raw_spin_lock
3.76 +1.0 4.75 ± 2% perf-profile.children.cycles-pp.futex_q_lock
4.25 +1.4 5.62 perf-profile.children.cycles-pp.entry_SYSCALL_64_safe_stack
11.05 +1.9 12.94 perf-profile.children.cycles-pp.entry_SYSCALL_64
1.26 +17.4 18.64 perf-profile.children.cycles-pp.entry_SYSRETQ_unsafe_stack
19.27 -18.5 0.77 perf-profile.self.cycles-pp.syscall_exit_to_user_mode
6.32 -3.8 2.51 perf-profile.self.cycles-pp.__get_user_nocheck_4
6.23 -3.5 2.68 perf-profile.self.cycles-pp.futex_wait
29.64 -2.6 27.05 perf-profile.self.cycles-pp.syscall_return_via_sysret
0.13 -0.0 0.10 perf-profile.self.cycles-pp.futex_setup_timer
0.39 ± 2% -0.0 0.36 ± 4% perf-profile.self.cycles-pp.syscall_exit_to_user_mode_prepare
0.06 +0.0 0.09 ± 5% perf-profile.self.cycles-pp.amd_clear_divider
0.58 +0.0 0.61 perf-profile.self.cycles-pp.entry_SYSCALL_64_safe_stack
0.13 ± 3% +0.0 0.16 ± 3% perf-profile.self.cycles-pp.testcase
0.65 +0.0 0.69 perf-profile.self.cycles-pp.get_futex_key
0.78 +0.0 0.83 perf-profile.self.cycles-pp.futex_q_unlock
0.96 +0.1 1.07 perf-profile.self.cycles-pp.__futex_wait
0.44 +0.1 0.58 perf-profile.self.cycles-pp.do_futex
0.85 +0.2 1.06 perf-profile.self.cycles-pp.futex_wait_setup
0.93 +0.2 1.17 perf-profile.self.cycles-pp.futex_hash
1.23 +0.9 2.09 perf-profile.self.cycles-pp._raw_spin_lock
9.85 +1.9 11.73 perf-profile.self.cycles-pp.entry_SYSCALL_64
2.11 +2.3 4.37 perf-profile.self.cycles-pp.syscall
1.86 +2.3 4.19 perf-profile.self.cycles-pp.do_syscall_64
12.24 +3.1 15.38 perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe
1.11 +17.4 18.46 perf-profile.self.cycles-pp.entry_SYSRETQ_unsafe_stack
***************************************************************************************************
lkp-skl-fpga01: 104 threads 2 sockets (Skylake) with 192G memory
=========================================================================================
compiler/cpufreq_governor/kconfig/mode/nr_task/rootfs/tbox_group/test/testcase:
gcc-12/performance/x86_64-rhel-8.3/process/100%/debian-11.1-x86_64-20220510.cgz/lkp-skl-fpga01/futex2/will-it-scale
commit:
a0e2dab44d ("x86/entry_32: Add VERW just before userspace transition")
6613d82e61 ("x86/bugs: Use ALTERNATIVE() instead of mds_user_clear static key")
a0e2dab44d22b913 6613d82e617dd7eb8b0c40b2fe3
---------------- ---------------------------
%stddev %change %stddev
\ | \
228.17 ± 8% -23.3% 175.00 ± 15% perf-c2c.HITM.local
25.31 ± 26% +1883.0% 501.86 ±132% sched_debug.cfs_rq:/.removed.load_avg.stddev
5561 ± 52% -43.3% 3154 ± 11% turbostat.C1
17507 ± 17% +19.7% 20950 ± 4% proc-vmstat.numa_hint_faults_local
61472 +4.9% 64491 ± 2% proc-vmstat.pgactivate
66711960 -2.1% 65339777 will-it-scale.104.processes
641460 -2.1% 628266 will-it-scale.per_process_ops
66711960 -2.1% 65339777 will-it-scale.workload
0.33 ± 21% -31.2% 0.23 ± 18% perf-sched.sch_delay.avg.ms.do_task_dead.do_exit.do_group_exit.__x64_sys_exit_group.do_syscall_64
0.09 ± 16% +82.6% 0.16 ± 15% perf-sched.wait_and_delay.avg.ms.irqentry_exit_to_user_mode.asm_sysvec_reschedule_ipi.[unknown].[unknown]
534.00 ± 4% -10.5% 478.00 ± 3% perf-sched.wait_and_delay.count.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt.[unknown].[unknown]
187.33 ± 7% -16.7% 156.00 ± 10% perf-sched.wait_and_delay.count.irqentry_exit_to_user_mode.asm_sysvec_reschedule_ipi.[unknown].[unknown]
0.09 ± 16% +82.6% 0.16 ± 15% perf-sched.wait_time.avg.ms.irqentry_exit_to_user_mode.asm_sysvec_reschedule_ipi.[unknown].[unknown]
1.296e+10 -1.9% 1.271e+10 perf-stat.i.branch-instructions
1.00 +0.1 1.06 perf-stat.i.branch-miss-rate%
1.286e+08 +4.8% 1.348e+08 perf-stat.i.branch-misses
3.34 +2.1% 3.41 perf-stat.i.cpi
66597836 -1.9% 65315938 perf-stat.i.dTLB-load-misses
1.946e+10 -1.9% 1.909e+10 perf-stat.i.dTLB-loads
0.00 ± 59% -0.0 0.00 perf-stat.i.dTLB-store-miss-rate%
58479 -6.6% 54625 perf-stat.i.dTLB-store-misses
1.439e+10 -1.9% 1.411e+10 perf-stat.i.dTLB-stores
73446151 -8.8% 67017808 ± 4% perf-stat.i.iTLB-load-misses
8.619e+10 -2.0% 8.443e+10 perf-stat.i.instructions
1175 ± 2% +7.7% 1266 ± 4% perf-stat.i.instructions-per-iTLB-miss
0.30 -2.1% 0.29 perf-stat.i.ipc
450.05 -1.9% 441.52 perf-stat.i.metric.M/sec
192401 ± 5% -6.8% 179259 ± 6% perf-stat.i.node-load-misses
0.99 +0.1 1.06 perf-stat.overall.branch-miss-rate%
3.33 +2.2% 3.41 perf-stat.overall.cpi
0.00 -0.0 0.00 perf-stat.overall.dTLB-store-miss-rate%
1173 ± 2% +7.6% 1262 ± 4% perf-stat.overall.instructions-per-iTLB-miss
0.30 -2.1% 0.29 perf-stat.overall.ipc
1.292e+10 -1.9% 1.267e+10 perf-stat.ps.branch-instructions
1.282e+08 +4.8% 1.344e+08 perf-stat.ps.branch-misses
66375435 -1.9% 65097246 perf-stat.ps.dTLB-load-misses
1.94e+10 -1.9% 1.903e+10 perf-stat.ps.dTLB-loads
58320 -6.6% 54460 perf-stat.ps.dTLB-store-misses
1.434e+10 -1.9% 1.407e+10 perf-stat.ps.dTLB-stores
73202477 -8.8% 66790734 ± 4% perf-stat.ps.iTLB-load-misses
8.59e+10 -2.0% 8.415e+10 perf-stat.ps.instructions
191780 ± 5% -6.8% 178656 ± 6% perf-stat.ps.node-load-misses
2.598e+13 -2.2% 2.541e+13 perf-stat.total.instructions
17.48 -16.6 0.83 perf-profile.calltrace.cycles-pp.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.syscall
61.84 -10.1 51.77 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.syscall
48.64 -5.8 42.84 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.syscall
13.22 -5.6 7.61 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_safe_stack.syscall
21.25 -1.3 19.98 perf-profile.calltrace.cycles-pp.syscall_return_via_sysret.syscall
7.92 -0.2 7.68 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64.syscall
99.68 +0.1 99.74 perf-profile.calltrace.cycles-pp.syscall
1.04 +0.1 1.13 perf-profile.calltrace.cycles-pp.try_grab_folio.gup_pte_range.gup_pgd_range.lockless_pages_from_mm.internal_get_user_pages_fast
0.61 +0.3 0.96 perf-profile.calltrace.cycles-pp.futex_hash.futex_q_lock.futex_wait_setup.__futex_wait.futex_wait
0.89 +0.4 1.25 perf-profile.calltrace.cycles-pp._raw_spin_lock.futex_q_lock.futex_wait_setup.__futex_wait.futex_wait
0.00 +0.9 0.87 perf-profile.calltrace.cycles-pp.__pte_offset_map.gup_pte_range.gup_pgd_range.lockless_pages_from_mm.internal_get_user_pages_fast
2.36 ± 5% +1.6 3.97 perf-profile.calltrace.cycles-pp.futex_q_lock.futex_wait_setup.__futex_wait.futex_wait.do_futex
3.56 +1.9 5.43 perf-profile.calltrace.cycles-pp.gup_pte_range.gup_pgd_range.lockless_pages_from_mm.internal_get_user_pages_fast.get_user_pages_fast
2.16 ± 2% +2.3 4.47 perf-profile.calltrace.cycles-pp.__get_user_nocheck_4.futex_get_value_locked.futex_wait_setup.__futex_wait.futex_wait
6.48 +3.3 9.79 perf-profile.calltrace.cycles-pp.gup_pgd_range.lockless_pages_from_mm.internal_get_user_pages_fast.get_user_pages_fast.get_futex_key
2.49 ± 2% +3.5 6.00 perf-profile.calltrace.cycles-pp.futex_get_value_locked.futex_wait_setup.__futex_wait.futex_wait.do_futex
7.50 +3.9 11.39 perf-profile.calltrace.cycles-pp.lockless_pages_from_mm.internal_get_user_pages_fast.get_user_pages_fast.get_futex_key.futex_wait_setup
8.30 +4.7 12.95 perf-profile.calltrace.cycles-pp.internal_get_user_pages_fast.get_user_pages_fast.get_futex_key.futex_wait_setup.__futex_wait
9.10 +5.4 14.50 perf-profile.calltrace.cycles-pp.get_user_pages_fast.get_futex_key.futex_wait_setup.__futex_wait.futex_wait
10.86 +6.8 17.64 perf-profile.calltrace.cycles-pp.get_futex_key.futex_wait_setup.__futex_wait.futex_wait.do_futex
24.84 +7.9 32.70 perf-profile.calltrace.cycles-pp.__x64_sys_futex.do_syscall_64.entry_SYSCALL_64_after_hwframe.syscall
23.47 +8.1 31.60 perf-profile.calltrace.cycles-pp.do_futex.__x64_sys_futex.do_syscall_64.entry_SYSCALL_64_after_hwframe.syscall
22.92 +8.1 31.06 perf-profile.calltrace.cycles-pp.futex_wait.do_futex.__x64_sys_futex.do_syscall_64.entry_SYSCALL_64_after_hwframe
20.40 +9.2 29.60 perf-profile.calltrace.cycles-pp.__futex_wait.futex_wait.do_futex.__x64_sys_futex.do_syscall_64
17.06 +11.5 28.57 perf-profile.calltrace.cycles-pp.futex_wait_setup.__futex_wait.futex_wait.do_futex.__x64_sys_futex
0.00 +13.6 13.64 perf-profile.calltrace.cycles-pp.entry_SYSRETQ_unsafe_stack.syscall
17.67 -16.8 0.89 perf-profile.children.cycles-pp.syscall_exit_to_user_mode
62.15 -9.3 52.89 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
48.78 -6.9 41.92 perf-profile.children.cycles-pp.do_syscall_64
13.14 -3.0 10.14 perf-profile.children.cycles-pp.entry_SYSCALL_64
6.90 -2.8 4.09 perf-profile.children.cycles-pp.entry_SYSCALL_64_safe_stack
21.41 -1.3 20.13 perf-profile.children.cycles-pp.syscall_return_via_sysret
0.78 ± 3% -0.5 0.29 perf-profile.children.cycles-pp.syscall_exit_to_user_mode_prepare
0.17 ± 2% -0.1 0.06 ± 6% perf-profile.children.cycles-pp.amd_clear_divider
0.34 ± 2% +0.0 0.39 ± 2% perf-profile.children.cycles-pp.is_valid_gup_args
0.06 ± 9% +0.0 0.10 ± 4% perf-profile.children.cycles-pp.pud_huge
1.05 +0.1 1.13 perf-profile.children.cycles-pp.try_grab_folio
0.07 ± 5% +0.1 0.16 ± 3% perf-profile.children.cycles-pp.pmd_huge
0.94 +0.4 1.30 perf-profile.children.cycles-pp._raw_spin_lock
0.61 +0.4 0.98 perf-profile.children.cycles-pp.futex_hash
0.45 +0.4 0.88 perf-profile.children.cycles-pp.__pte_offset_map
2.48 ± 5% +1.6 4.06 perf-profile.children.cycles-pp.futex_q_lock
3.64 +1.9 5.52 perf-profile.children.cycles-pp.gup_pte_range
2.28 ± 2% +2.8 5.08 perf-profile.children.cycles-pp.__get_user_nocheck_4
2.54 ± 2% +2.9 5.49 perf-profile.children.cycles-pp.futex_get_value_locked
6.56 +3.3 9.90 perf-profile.children.cycles-pp.gup_pgd_range
7.54 +3.9 11.44 perf-profile.children.cycles-pp.lockless_pages_from_mm
8.42 +4.7 13.12 perf-profile.children.cycles-pp.internal_get_user_pages_fast
9.20 +5.5 14.70 perf-profile.children.cycles-pp.get_user_pages_fast
10.90 +6.8 17.70 perf-profile.children.cycles-pp.get_futex_key
24.90 +7.9 32.76 perf-profile.children.cycles-pp.__x64_sys_futex
23.54 +8.1 31.67 perf-profile.children.cycles-pp.do_futex
23.00 +8.2 31.16 perf-profile.children.cycles-pp.futex_wait
20.42 +9.2 29.65 perf-profile.children.cycles-pp.__futex_wait
17.15 +11.5 28.70 perf-profile.children.cycles-pp.futex_wait_setup
1.24 +13.4 14.65 perf-profile.children.cycles-pp.entry_SYSRETQ_unsafe_stack
16.85 -16.3 0.54 perf-profile.self.cycles-pp.syscall_exit_to_user_mode
12.04 -3.0 9.08 perf-profile.self.cycles-pp.entry_SYSCALL_64
3.22 -2.3 0.95 perf-profile.self.cycles-pp.__futex_wait
13.61 -1.6 12.00 perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe
21.39 -1.3 20.10 perf-profile.self.cycles-pp.syscall_return_via_sysret
2.48 -1.0 1.43 perf-profile.self.cycles-pp.futex_wait
0.74 ± 3% -0.5 0.26 perf-profile.self.cycles-pp.syscall_exit_to_user_mode_prepare
1.36 ± 3% -0.3 1.07 perf-profile.self.cycles-pp.__x64_sys_futex
0.09 ± 4% -0.0 0.08 perf-profile.self.cycles-pp.futex_setup_timer
0.05 ± 8% +0.0 0.08 ± 5% perf-profile.self.cycles-pp.pud_huge
0.31 ± 2% +0.0 0.35 ± 2% perf-profile.self.cycles-pp.is_valid_gup_args
0.00 +0.1 0.05 perf-profile.self.cycles-pp.syscall@plt
1.03 +0.1 1.09 perf-profile.self.cycles-pp.try_grab_folio
0.05 ± 7% +0.1 0.13 ± 2% perf-profile.self.cycles-pp.pmd_huge
2.36 +0.1 2.46 perf-profile.self.cycles-pp.syscall
0.27 ± 5% +0.2 0.42 ± 5% perf-profile.self.cycles-pp.futex_get_value_locked
0.61 ± 2% +0.2 0.84 perf-profile.self.cycles-pp.futex_wait_setup
0.90 +0.4 1.26 perf-profile.self.cycles-pp._raw_spin_lock
0.59 +0.4 0.95 perf-profile.self.cycles-pp.futex_hash
0.44 +0.4 0.87 perf-profile.self.cycles-pp.__pte_offset_map
0.90 +0.5 1.41 perf-profile.self.cycles-pp.lockless_pages_from_mm
0.51 ± 2% +0.7 1.24 perf-profile.self.cycles-pp.get_user_pages_fast
0.90 +0.8 1.73 perf-profile.self.cycles-pp.internal_get_user_pages_fast
0.96 ± 12% +0.9 1.81 ± 2% perf-profile.self.cycles-pp.futex_q_lock
1.69 +1.3 2.98 perf-profile.self.cycles-pp.get_futex_key
5.82 +1.3 7.13 perf-profile.self.cycles-pp.do_syscall_64
2.81 +1.4 4.16 perf-profile.self.cycles-pp.gup_pgd_range
2.06 +1.4 3.46 perf-profile.self.cycles-pp.gup_pte_range
2.24 ± 2% +2.8 5.01 perf-profile.self.cycles-pp.__get_user_nocheck_4
1.08 +13.4 14.51 perf-profile.self.cycles-pp.entry_SYSRETQ_unsafe_stack
***************************************************************************************************
lkp-skl-fpga01: 104 threads 2 sockets (Skylake) with 192G memory
=========================================================================================
compiler/cpufreq_governor/kconfig/mode/nr_task/rootfs/tbox_group/test/testcase:
gcc-12/performance/x86_64-rhel-8.3/process/100%/debian-11.1-x86_64-20220510.cgz/lkp-skl-fpga01/futex3/will-it-scale
commit:
a0e2dab44d ("x86/entry_32: Add VERW just before userspace transition")
6613d82e61 ("x86/bugs: Use ALTERNATIVE() instead of mds_user_clear static key")
a0e2dab44d22b913 6613d82e617dd7eb8b0c40b2fe3
---------------- ---------------------------
%stddev %change %stddev
\ | \
13.83 ± 10% +25.7% 17.39 ± 9% sched_debug.cfs_rq:/.removed.runnable_avg.stddev
13.66 ± 11% +25.8% 17.19 ± 9% sched_debug.cfs_rq:/.removed.util_avg.stddev
0.44 ± 8% -20.4% 0.35 ± 17% perf-sched.wait_and_delay.avg.ms.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt.[unknown].[unknown]
283.50 ± 8% +14.2% 323.67 ± 4% perf-sched.wait_and_delay.count.irqentry_exit_to_user_mode.asm_sysvec_reschedule_ipi.[unknown].[unknown]
0.44 ± 8% -20.4% 0.35 ± 17% perf-sched.wait_time.avg.ms.irqentry_exit_to_user_mode.asm_sysvec_apic_timer_interrupt.[unknown].[unknown]
76308359 +3.7% 79094461 will-it-scale.104.processes
733733 +3.7% 760523 will-it-scale.per_process_ops
76308359 +3.7% 79094461 will-it-scale.workload
55603 -2.2% 54361 proc-vmstat.nr_active_anon
58137 -2.3% 56792 proc-vmstat.nr_shmem
55603 -2.2% 54361 proc-vmstat.nr_zone_active_anon
57819 ± 2% -3.5% 55794 proc-vmstat.pgactivate
4.625e+09 +3.7% 4.793e+09 perf-stat.i.branch-instructions
1.76 +0.3 2.10 perf-stat.i.branch-miss-rate%
81504213 +23.8% 1.009e+08 perf-stat.i.branch-misses
7.84 -3.1% 7.59 perf-stat.i.cpi
76204495 +3.7% 79030797 perf-stat.i.dTLB-load-misses
8.857e+09 +3.7% 9.18e+09 perf-stat.i.dTLB-loads
0.00 -0.0 0.00 perf-stat.i.dTLB-store-miss-rate%
74968 +2.1% 76523 perf-stat.i.dTLB-store-misses
6.71e+09 +3.6% 6.954e+09 perf-stat.i.dTLB-stores
3.674e+10 +3.3% 3.794e+10 perf-stat.i.instructions
0.13 +3.2% 0.13 perf-stat.i.ipc
194.14 +3.6% 201.22 perf-stat.i.metric.M/sec
76.87 +1.3 78.12 perf-stat.i.node-store-miss-rate%
1.76 +0.3 2.10 perf-stat.overall.branch-miss-rate%
7.84 -3.1% 7.59 perf-stat.overall.cpi
0.00 -0.0 0.00 perf-stat.overall.dTLB-store-miss-rate%
0.13 +3.2% 0.13 perf-stat.overall.ipc
4.609e+09 +3.6% 4.778e+09 perf-stat.ps.branch-instructions
81226256 +23.8% 1.005e+08 perf-stat.ps.branch-misses
75948753 +3.7% 78766248 perf-stat.ps.dTLB-load-misses
8.827e+09 +3.7% 9.15e+09 perf-stat.ps.dTLB-loads
74738 +2.1% 76323 perf-stat.ps.dTLB-store-misses
6.688e+09 +3.6% 6.931e+09 perf-stat.ps.dTLB-stores
3.662e+10 +3.3% 3.781e+10 perf-stat.ps.instructions
1.106e+13 +3.2% 1.141e+13 perf-stat.total.instructions
39.96 -26.1 13.91 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.syscall
52.30 -23.3 29.00 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.syscall
21.46 -20.2 1.24 perf-profile.calltrace.cycles-pp.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.syscall
15.92 -9.7 6.22 perf-profile.calltrace.cycles-pp.__x64_sys_futex.do_syscall_64.entry_SYSCALL_64_after_hwframe.syscall
14.55 -9.7 4.85 perf-profile.calltrace.cycles-pp.do_futex.__x64_sys_futex.do_syscall_64.entry_SYSCALL_64_after_hwframe.syscall
13.86 -9.7 4.18 perf-profile.calltrace.cycles-pp.futex_wake.do_futex.__x64_sys_futex.do_syscall_64.entry_SYSCALL_64_after_hwframe
5.41 -4.2 1.17 perf-profile.calltrace.cycles-pp.get_futex_key.futex_wake.do_futex.__x64_sys_futex.do_syscall_64
5.45 -4.1 1.31 perf-profile.calltrace.cycles-pp.futex_hash.futex_wake.do_futex.__x64_sys_futex.do_syscall_64
32.42 -3.9 28.48 perf-profile.calltrace.cycles-pp.syscall_return_via_sysret.syscall
99.16 -2.6 96.55 perf-profile.calltrace.cycles-pp.syscall
8.66 -1.7 6.99 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_safe_stack.syscall
8.99 +0.3 9.32 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64.syscall
0.58 +3.4 3.94 ± 7% perf-profile.calltrace.cycles-pp.testcase
0.00 +21.1 21.12 perf-profile.calltrace.cycles-pp.entry_SYSRETQ_unsafe_stack.syscall
40.10 -26.8 13.28 perf-profile.children.cycles-pp.do_syscall_64
52.74 -22.8 29.91 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
21.67 -20.4 1.32 perf-profile.children.cycles-pp.syscall_exit_to_user_mode
14.14 -9.8 4.32 perf-profile.children.cycles-pp.futex_wake
14.61 -9.7 4.90 perf-profile.children.cycles-pp.do_futex
15.97 -9.7 6.27 perf-profile.children.cycles-pp.__x64_sys_futex
5.45 -4.3 1.20 perf-profile.children.cycles-pp.get_futex_key
5.46 -4.1 1.32 perf-profile.children.cycles-pp.futex_hash
32.59 -3.9 28.68 perf-profile.children.cycles-pp.syscall_return_via_sysret
99.58 -2.3 97.28 perf-profile.children.cycles-pp.syscall
4.64 -0.7 3.96 perf-profile.children.cycles-pp.entry_SYSCALL_64_safe_stack
11.74 -0.7 11.08 perf-profile.children.cycles-pp.entry_SYSCALL_64
0.45 ± 5% -0.1 0.36 perf-profile.children.cycles-pp.syscall_exit_to_user_mode_prepare
0.18 ± 3% -0.1 0.09 ± 4% perf-profile.children.cycles-pp.amd_clear_divider
0.05 +0.0 0.10 ± 3% perf-profile.children.cycles-pp.syscall@plt
0.58 +2.7 3.30 ± 8% perf-profile.children.cycles-pp.testcase
1.35 +21.0 22.37 perf-profile.children.cycles-pp.entry_SYSRETQ_unsafe_stack
21.18 -20.3 0.88 perf-profile.self.cycles-pp.syscall_exit_to_user_mode
5.37 -4.2 1.16 perf-profile.self.cycles-pp.get_futex_key
5.22 -4.0 1.23 perf-profile.self.cycles-pp.futex_hash
32.55 -4.0 28.57 perf-profile.self.cycles-pp.syscall_return_via_sysret
3.42 -1.5 1.87 perf-profile.self.cycles-pp.futex_wake
10.45 -0.7 9.80 perf-profile.self.cycles-pp.entry_SYSCALL_64
0.40 ± 6% -0.1 0.32 ± 3% perf-profile.self.cycles-pp.syscall_exit_to_user_mode_prepare
0.05 +0.0 0.07 ± 5% perf-profile.self.cycles-pp.amd_clear_divider
0.05 +0.0 0.10 ± 4% perf-profile.self.cycles-pp.syscall@plt
0.51 +0.1 0.62 perf-profile.self.cycles-pp.do_futex
0.61 +0.3 0.91 ± 2% perf-profile.self.cycles-pp.entry_SYSCALL_64_safe_stack
0.34 ± 2% +2.3 2.63 ± 9% perf-profile.self.cycles-pp.testcase
1.98 +2.8 4.80 perf-profile.self.cycles-pp.do_syscall_64
1.65 +3.9 5.51 ± 3% perf-profile.self.cycles-pp.syscall
13.00 +4.4 17.39 perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe
1.19 +21.0 22.18 perf-profile.self.cycles-pp.entry_SYSRETQ_unsafe_stack
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
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