Hello,
kernel test robot noticed a 25.3% improvement of stress-ng.msg.ops_per_sec on:
commit: 235f4f5bfea93e33e13ba9d8c553d9cf613a58ee ("[RFC PATCH 12/16] ext4: update reserved meta blocks in ext4_da_{release|update_reserve}_space()")
url: https://github.com/intel-lab-lkp/linux/commits/Zhang-Yi/ext4-correct-the-start-block-of-counting-reserved-clusters/20230824-173242
base: https://git.kernel.org/cgit/linux/kernel/git/tytso/ext4.git dev
patch link: https://lore.kernel.org/all/20230824092619.1327976-13-yi.zhang@xxxxxxxxxxxxxxx/
patch subject: [RFC PATCH 12/16] ext4: update reserved meta blocks in ext4_da_{release|update_reserve}_space()
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
class: pts
test: msg
cpufreq_governor: performance
Details are as below:
-------------------------------------------------------------------------------------------------->
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20230906/202309061536.1b59f59d-oliver.sang@xxxxxxxxx
=========================================================================================
class/compiler/cpufreq_governor/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime:
pts/gcc-12/performance/x86_64-rhel-8.3/100%/debian-11.1-x86_64-20220510.cgz/lkp-icl-2sp7/msg/stress-ng/60s
commit:
637653488a ("ext4: factor out common part of ext4_da_{release|update_reserve}_space()")
235f4f5bfe ("ext4: update reserved meta blocks in ext4_da_{release|update_reserve}_space()")
637653488ad95a0c 235f4f5bfea93e33e13ba9d8c55
---------------- ---------------------------
%stddev %change %stddev
\ | \
2359 +1.3% 2390 boot-time.idle
9537488 -18.9% 7734959 cpuidle..usage
3.17 +0.6 3.78 mpstat.cpu.all.usr%
336783 ± 17% -28.6% 240355 ± 18% numa-meminfo.node1.Active
336689 ± 17% -28.6% 240299 ± 18% numa-meminfo.node1.Active(anon)
460770 ± 16% -30.0% 322742 ± 19% numa-meminfo.node1.Shmem
450337 ± 5% +43.9% 648260 ± 6% numa-numastat.node0.local_node
485519 ± 4% +40.1% 680005 ± 5% numa-numastat.node0.numa_hit
680896 ± 3% +10.0% 748983 ± 4% numa-numastat.node1.numa_hit
136742 -14.2% 117325 sched_debug.cpu.nr_switches.avg
116638 ± 3% -13.7% 100689 ± 2% sched_debug.cpu.nr_switches.min
0.31 ± 10% +18.2% 0.36 ± 7% sched_debug.cpu.nr_uninterruptible.avg
36.67 ± 4% +10.9% 40.67 ± 2% vmstat.procs.r
273206 -14.6% 233356 vmstat.system.cs
104671 +4.9% 109774 vmstat.system.in
46.83 ± 7% -31.0% 32.33 ± 14% perf-c2c.DRAM.local
10329 ± 8% +26.9% 13107 ± 6% perf-c2c.DRAM.remote
8544 ± 8% +31.0% 11194 ± 6% perf-c2c.HITM.remote
30099 ± 7% +15.1% 34636 ± 5% perf-c2c.HITM.total
485599 ± 4% +40.1% 680300 ± 5% numa-vmstat.node0.numa_hit
450417 ± 5% +44.0% 648555 ± 6% numa-vmstat.node0.numa_local
84324 ± 17% -28.7% 60140 ± 18% numa-vmstat.node1.nr_active_anon
115201 ± 16% -30.0% 80698 ± 19% numa-vmstat.node1.nr_shmem
84323 ± 17% -28.7% 60140 ± 18% numa-vmstat.node1.nr_zone_active_anon
680786 ± 3% +10.0% 749101 ± 4% numa-vmstat.node1.numa_hit
7.181e+08 +24.4% 8.932e+08 stress-ng.msg.ops
11872476 +25.3% 14879722 stress-ng.msg.ops_per_sec
153117 ± 4% +39.5% 213629 ± 3% stress-ng.time.involuntary_context_switches
3843 +5.3% 4048 stress-ng.time.percent_of_cpu_this_job_got
2316 +4.4% 2418 stress-ng.time.system_time
91.29 +28.5% 117.34 stress-ng.time.user_time
9318632 -14.7% 7951016 stress-ng.time.voluntary_context_switches
112355 -3.2% 108777 ± 2% proc-vmstat.nr_active_anon
154552 -3.9% 148580 proc-vmstat.nr_shmem
112355 -3.2% 108777 ± 2% proc-vmstat.nr_zone_active_anon
1168434 +22.5% 1430780 proc-vmstat.numa_hit
1102166 +23.8% 1364548 proc-vmstat.numa_local
206664 -4.7% 196864 proc-vmstat.pgactivate
1211499 +21.6% 1473352 proc-vmstat.pgalloc_normal
973632 +28.0% 1246003 ± 2% proc-vmstat.pgfree
92337 ± 4% +158.2% 238396 ± 7% turbostat.C1
0.09 ± 5% +0.2 0.25 ± 8% turbostat.C1%
9175706 -22.1% 7147445 turbostat.C1E
30.93 -3.9 27.02 turbostat.C1E%
247900 ± 3% +18.3% 293206 ± 2% turbostat.C6
6.42 ± 3% +0.7 7.14 ± 2% turbostat.C6%
0.10 +15.0% 0.12 ± 4% turbostat.IPC
13954 ± 4% +232.9% 46453 ± 10% turbostat.POLL
211.09 +2.4% 216.18 turbostat.PkgWatt
59.62 +3.8% 61.89 turbostat.RAMWatt
0.01 ± 12% +34.4% 0.01 ± 14% perf-sched.sch_delay.avg.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
0.01 +13.0% 0.01 ± 3% perf-sched.sch_delay.avg.ms.schedule_preempt_disabled.rwsem_down_read_slowpath.down_read.sysvipc_proc_start
0.01 ± 3% +19.7% 0.01 ± 2% perf-sched.sch_delay.avg.ms.schedule_preempt_disabled.rwsem_down_write_slowpath.down_write.msgctl_down
1.39 ± 52% +350.2% 6.24 ± 63% perf-sched.sch_delay.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
4.37 ± 3% -12.2% 3.84 ± 4% perf-sched.wait_and_delay.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
189683 -20.7% 150342 perf-sched.wait_and_delay.count.schedule_preempt_disabled.rwsem_down_read_slowpath.down_read.msgctl_info.constprop
103248 +15.7% 119498 perf-sched.wait_and_delay.count.schedule_preempt_disabled.rwsem_down_read_slowpath.down_read.sysvipc_proc_start
859.83 ± 2% +16.4% 1000 ± 4% perf-sched.wait_and_delay.count.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
11.39 ± 22% +88.6% 21.48 ± 38% perf-sched.wait_and_delay.max.ms.schedule_preempt_disabled.rwsem_down_read_slowpath.down_read.msgctl_info.constprop
0.55 ± 5% -8.3% 0.50 ± 4% perf-sched.wait_time.avg.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
4.36 ± 3% -12.3% 3.83 ± 4% perf-sched.wait_time.avg.ms.schedule_timeout.rcu_gp_fqs_loop.rcu_gp_kthread.kthread
1.57 ± 36% +125.7% 3.55 ± 23% perf-sched.wait_time.max.ms.__cond_resched.__kmem_cache_alloc_node.__kmalloc.alloc_msg.load_msg
1.06 ± 19% +109.5% 2.21 ± 25% perf-sched.wait_time.max.ms.exit_to_user_mode_loop.exit_to_user_mode_prepare.irqentry_exit_to_user_mode.asm_sysvec_call_function_single
7.183e+09 +20.5% 8.658e+09 perf-stat.i.branch-instructions
37085833 +19.0% 44140894 perf-stat.i.branch-misses
24.92 +3.3 28.26 perf-stat.i.cache-miss-rate%
53067160 +38.2% 73340095 perf-stat.i.cache-misses
2.157e+08 +21.2% 2.614e+08 perf-stat.i.cache-references
289025 -14.7% 246454 perf-stat.i.context-switches
3.34 -13.6% 2.89 perf-stat.i.cpi
1.282e+11 +4.3% 1.337e+11 perf-stat.i.cpu-cycles
76033 -19.8% 60961 perf-stat.i.cpu-migrations
2396 -24.1% 1818 perf-stat.i.cycles-between-cache-misses
9.348e+09 +20.5% 1.126e+10 perf-stat.i.dTLB-loads
0.00 ± 2% -0.0 0.00 ± 5% perf-stat.i.dTLB-store-miss-rate%
5.595e+09 +21.4% 6.791e+09 perf-stat.i.dTLB-stores
3.773e+10 +20.6% 4.552e+10 perf-stat.i.instructions
0.32 +14.1% 0.36 perf-stat.i.ipc
2.00 +4.3% 2.09 perf-stat.i.metric.GHz
847.80 +37.2% 1162 perf-stat.i.metric.K/sec
349.01 +20.7% 421.38 perf-stat.i.metric.M/sec
96.81 +0.9 97.69 perf-stat.i.node-load-miss-rate%
34681142 +41.8% 49163827 perf-stat.i.node-load-misses
571211 ± 12% -19.2% 461475 ± 7% perf-stat.i.node-loads
69.19 +4.7 73.94 perf-stat.i.node-store-miss-rate%
12432335 +42.8% 17748149 perf-stat.i.node-store-misses
5384441 +11.0% 5974384 perf-stat.i.node-stores
24.59 +3.5 28.04 perf-stat.overall.cache-miss-rate%
3.40 -13.6% 2.94 perf-stat.overall.cpi
2416 -24.6% 1823 perf-stat.overall.cycles-between-cache-misses
0.00 ± 2% -0.0 0.00 ± 6% perf-stat.overall.dTLB-store-miss-rate%
0.29 +15.7% 0.34 perf-stat.overall.ipc
69.80 +5.0 74.83 perf-stat.overall.node-store-miss-rate%
7.07e+09 +20.5% 8.52e+09 perf-stat.ps.branch-instructions
36445205 +19.0% 43382549 perf-stat.ps.branch-misses
52231245 +38.2% 72171401 perf-stat.ps.cache-misses
2.124e+08 +21.2% 2.574e+08 perf-stat.ps.cache-references
284550 -14.8% 242556 perf-stat.ps.context-switches
1.262e+11 +4.3% 1.316e+11 perf-stat.ps.cpu-cycles
74864 -19.9% 59988 perf-stat.ps.cpu-migrations
9.201e+09 +20.5% 1.109e+10 perf-stat.ps.dTLB-loads
5.507e+09 +21.4% 6.684e+09 perf-stat.ps.dTLB-stores
3.714e+10 +20.6% 4.479e+10 perf-stat.ps.instructions
34137147 +41.7% 48383050 perf-stat.ps.node-load-misses
561002 ± 12% -18.8% 455270 ± 7% perf-stat.ps.node-loads
12237881 +42.7% 17467084 perf-stat.ps.node-store-misses
5295571 +11.0% 5875597 perf-stat.ps.node-stores
2.342e+12 +20.5% 2.823e+12 perf-stat.total.instructions
11.71 -10.7 1.04 perf-profile.calltrace.cycles-pp.idr_find.ipc_obtain_object_check.do_msgrcv.do_syscall_64.entry_SYSCALL_64_after_hwframe
11.06 -10.1 0.94 ± 2% perf-profile.calltrace.cycles-pp.idr_find.ipc_obtain_object_check.do_msgsnd.do_syscall_64.entry_SYSCALL_64_after_hwframe
15.49 -9.2 6.24 perf-profile.calltrace.cycles-pp.ipc_obtain_object_check.do_msgrcv.do_syscall_64.entry_SYSCALL_64_after_hwframe.__libc_msgrcv
15.74 -8.4 7.36 perf-profile.calltrace.cycles-pp.ipc_obtain_object_check.do_msgsnd.do_syscall_64.entry_SYSCALL_64_after_hwframe.__libc_msgsnd
7.11 -3.0 4.09 perf-profile.calltrace.cycles-pp.msgctl
7.03 -3.0 4.02 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.msgctl
7.01 -3.0 4.00 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.msgctl
6.93 -3.0 3.94 perf-profile.calltrace.cycles-pp.ksys_msgctl.do_syscall_64.entry_SYSCALL_64_after_hwframe.msgctl
3.84 -1.7 2.14 perf-profile.calltrace.cycles-pp.msgctl_info.ksys_msgctl.do_syscall_64.entry_SYSCALL_64_after_hwframe.msgctl
2.74 -1.2 1.54 ± 2% perf-profile.calltrace.cycles-pp.msgctl_down.ksys_msgctl.do_syscall_64.entry_SYSCALL_64_after_hwframe.msgctl
1.81 ± 2% -1.2 0.62 ± 2% perf-profile.calltrace.cycles-pp.down_read.msgctl_info.ksys_msgctl.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.59 ± 2% -1.0 0.60 ± 2% perf-profile.calltrace.cycles-pp.rwsem_down_read_slowpath.down_read.msgctl_info.ksys_msgctl.do_syscall_64
1.71 -0.9 0.83 ± 4% perf-profile.calltrace.cycles-pp.down_write.msgctl_down.ksys_msgctl.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.61 -0.8 0.80 ± 4% perf-profile.calltrace.cycles-pp.rwsem_down_write_slowpath.down_write.msgctl_down.ksys_msgctl.do_syscall_64
2.96 -0.7 2.25 perf-profile.calltrace.cycles-pp.secondary_startup_64_no_verify
2.90 -0.7 2.21 perf-profile.calltrace.cycles-pp.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
2.90 -0.7 2.21 perf-profile.calltrace.cycles-pp.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
2.90 -0.7 2.22 perf-profile.calltrace.cycles-pp.start_secondary.secondary_startup_64_no_verify
1.84 -0.5 1.33 perf-profile.calltrace.cycles-pp.seq_read.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.87 -0.5 1.36 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.read
1.84 -0.5 1.34 perf-profile.calltrace.cycles-pp.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe.read
1.85 -0.5 1.34 perf-profile.calltrace.cycles-pp.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe.read
1.83 -0.5 1.33 perf-profile.calltrace.cycles-pp.seq_read_iter.seq_read.vfs_read.ksys_read.do_syscall_64
1.89 -0.5 1.39 perf-profile.calltrace.cycles-pp.read
1.87 -0.5 1.37 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.read
0.92 ± 3% -0.5 0.42 ± 44% perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.__percpu_counter_sum.msgctl_info.ksys_msgctl.do_syscall_64
1.84 -0.4 1.39 ± 2% perf-profile.calltrace.cycles-pp.cpuidle_idle_call.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
0.66 -0.4 0.25 ±100% perf-profile.calltrace.cycles-pp.flush_smp_call_function_queue.do_idle.cpu_startup_entry.start_secondary.secondary_startup_64_no_verify
1.68 -0.4 1.28 ± 2% perf-profile.calltrace.cycles-pp.cpuidle_enter.cpuidle_idle_call.do_idle.cpu_startup_entry.start_secondary
1.66 -0.4 1.26 ± 2% perf-profile.calltrace.cycles-pp.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle.cpu_startup_entry
1.32 -0.4 0.94 perf-profile.calltrace.cycles-pp.intel_idle.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle
0.97 -0.4 0.61 ± 3% perf-profile.calltrace.cycles-pp.sysvipc_proc_start.seq_read_iter.seq_read.vfs_read.ksys_read
0.92 ± 2% -0.3 0.58 ± 3% perf-profile.calltrace.cycles-pp.down_read.sysvipc_proc_start.seq_read_iter.seq_read.vfs_read
0.81 -0.3 0.51 perf-profile.calltrace.cycles-pp.up_write.msgctl_down.ksys_msgctl.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.84 ± 2% -0.3 0.56 ± 4% perf-profile.calltrace.cycles-pp.rwsem_down_read_slowpath.down_read.sysvipc_proc_start.seq_read_iter.seq_read
0.64 ± 3% -0.2 0.45 ± 44% perf-profile.calltrace.cycles-pp.schedule.schedule_preempt_disabled.rwsem_down_write_slowpath.down_write.msgctl_down
0.64 ± 3% -0.2 0.45 ± 44% perf-profile.calltrace.cycles-pp.schedule_preempt_disabled.rwsem_down_write_slowpath.down_write.msgctl_down.ksys_msgctl
0.64 ± 3% -0.2 0.44 ± 44% perf-profile.calltrace.cycles-pp.__schedule.schedule.schedule_preempt_disabled.rwsem_down_write_slowpath.down_write
1.56 ± 2% -0.2 1.40 perf-profile.calltrace.cycles-pp.__percpu_counter_sum.msgctl_info.ksys_msgctl.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.56 +0.1 0.61 perf-profile.calltrace.cycles-pp.ss_wakeup.do_msgrcv.do_syscall_64.entry_SYSCALL_64_after_hwframe.__libc_msgrcv
0.82 ± 5% +0.1 0.96 ± 2% perf-profile.calltrace.cycles-pp._copy_from_user.load_msg.do_msgsnd.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.66 ± 2% +0.2 0.83 perf-profile.calltrace.cycles-pp.__check_object_size.load_msg.do_msgsnd.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.53 +0.2 0.73 ± 26% perf-profile.calltrace.cycles-pp.__entry_text_start.__libc_msgrcv.stress_run
0.70 ± 2% +0.2 0.95 ± 2% perf-profile.calltrace.cycles-pp.wake_up_q.do_msgrcv.do_syscall_64.entry_SYSCALL_64_after_hwframe.__libc_msgrcv
0.57 ± 3% +0.4 0.94 ± 27% perf-profile.calltrace.cycles-pp.__entry_text_start.__libc_msgsnd.stress_run
1.58 +0.4 1.99 perf-profile.calltrace.cycles-pp.stress_msg.stress_run
0.56 ± 2% +0.4 0.98 perf-profile.calltrace.cycles-pp.___slab_alloc.__kmem_cache_alloc_node.__kmalloc.alloc_msg.load_msg
0.00 +0.6 0.55 ± 2% perf-profile.calltrace.cycles-pp.__x64_sys_msgsnd.do_syscall_64.entry_SYSCALL_64_after_hwframe.__libc_msgsnd.stress_run
44.35 +0.6 44.90 perf-profile.calltrace.cycles-pp.do_msgrcv.do_syscall_64.entry_SYSCALL_64_after_hwframe.__libc_msgrcv.stress_run
0.00 +0.6 0.56 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_safe_stack.__libc_msgsnd.stress_run
2.27 +0.6 2.85 perf-profile.calltrace.cycles-pp.__list_del_entry_valid.do_msgrcv.do_syscall_64.entry_SYSCALL_64_after_hwframe.__libc_msgrcv
2.52 +0.6 3.12 perf-profile.calltrace.cycles-pp.percpu_counter_add_batch.do_msgsnd.do_syscall_64.entry_SYSCALL_64_after_hwframe.__libc_msgsnd
44.94 +0.7 45.61 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__libc_msgrcv.stress_run
2.65 +0.7 3.36 perf-profile.calltrace.cycles-pp.memcg_slab_post_alloc_hook.__kmem_cache_alloc_node.__kmalloc.alloc_msg.load_msg
45.15 +0.7 45.86 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__libc_msgrcv.stress_run
3.08 +0.8 3.86 ± 2% perf-profile.calltrace.cycles-pp.__kmem_cache_free.free_msg.do_msgrcv.do_syscall_64.entry_SYSCALL_64_after_hwframe
2.41 +0.9 3.27 perf-profile.calltrace.cycles-pp.percpu_counter_add_batch.do_msgrcv.do_syscall_64.entry_SYSCALL_64_after_hwframe.__libc_msgrcv
45.96 +0.9 46.84 perf-profile.calltrace.cycles-pp.__libc_msgrcv.stress_run
2.56 +0.9 3.44 perf-profile.calltrace.cycles-pp.check_heap_object.__check_object_size.store_msg.do_msg_fill.do_msgrcv
3.75 +1.1 4.82 ± 9% perf-profile.calltrace.cycles-pp._copy_to_user.store_msg.do_msg_fill.do_msgrcv.do_syscall_64
3.16 +1.1 4.24 perf-profile.calltrace.cycles-pp.__check_object_size.store_msg.do_msg_fill.do_msgrcv.do_syscall_64
3.60 +1.2 4.78 ± 2% perf-profile.calltrace.cycles-pp.__slab_free.free_msg.do_msgrcv.do_syscall_64.entry_SYSCALL_64_after_hwframe
4.78 +1.4 6.22 perf-profile.calltrace.cycles-pp.__kmem_cache_alloc_node.__kmalloc.alloc_msg.load_msg.do_msgsnd
4.99 +1.5 6.46 perf-profile.calltrace.cycles-pp.__kmalloc.alloc_msg.load_msg.do_msgsnd.do_syscall_64
5.31 +1.7 6.97 perf-profile.calltrace.cycles-pp.alloc_msg.load_msg.do_msgsnd.do_syscall_64.entry_SYSCALL_64_after_hwframe
36.29 +1.7 37.99 perf-profile.calltrace.cycles-pp.do_msgsnd.do_syscall_64.entry_SYSCALL_64_after_hwframe.__libc_msgsnd.stress_run
6.79 +1.9 8.66 perf-profile.calltrace.cycles-pp.load_msg.do_msgsnd.do_syscall_64.entry_SYSCALL_64_after_hwframe.__libc_msgsnd
37.42 +2.0 39.42 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__libc_msgsnd.stress_run
7.34 +2.2 9.50 ± 2% perf-profile.calltrace.cycles-pp.free_msg.do_msgrcv.do_syscall_64.entry_SYSCALL_64_after_hwframe.__libc_msgrcv
2.59 +2.2 4.76 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.do_msgrcv.do_syscall_64.entry_SYSCALL_64_after_hwframe
7.33 +2.3 9.62 ± 4% perf-profile.calltrace.cycles-pp.store_msg.do_msg_fill.do_msgrcv.do_syscall_64.entry_SYSCALL_64_after_hwframe
3.28 +2.4 5.66 perf-profile.calltrace.cycles-pp._raw_spin_lock.do_msgrcv.do_syscall_64.entry_SYSCALL_64_after_hwframe.__libc_msgrcv
7.85 +2.4 10.24 ± 4% perf-profile.calltrace.cycles-pp.do_msg_fill.do_msgrcv.do_syscall_64.entry_SYSCALL_64_after_hwframe.__libc_msgrcv
38.05 +2.4 40.50 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__libc_msgsnd.stress_run
39.32 +2.8 42.12 perf-profile.calltrace.cycles-pp.__libc_msgsnd.stress_run
6.28 +3.7 10.01 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.do_msgsnd.do_syscall_64.entry_SYSCALL_64_after_hwframe
7.10 +4.1 11.20 perf-profile.calltrace.cycles-pp._raw_spin_lock.do_msgsnd.do_syscall_64.entry_SYSCALL_64_after_hwframe.__libc_msgsnd
87.71 +4.3 92.00 perf-profile.calltrace.cycles-pp.stress_run
22.97 -21.0 2.02 perf-profile.children.cycles-pp.idr_find
31.41 -17.7 13.70 perf-profile.children.cycles-pp.ipc_obtain_object_check
7.13 -3.0 4.12 perf-profile.children.cycles-pp.msgctl
6.93 -3.0 3.94 perf-profile.children.cycles-pp.ksys_msgctl
3.84 -1.7 2.14 perf-profile.children.cycles-pp.msgctl_info
2.74 -1.5 1.21 ± 3% perf-profile.children.cycles-pp.down_read
1.49 -1.3 0.18 ± 4% perf-profile.children.cycles-pp._raw_spin_lock_irq
2.44 ± 2% -1.3 1.16 ± 3% perf-profile.children.cycles-pp.rwsem_down_read_slowpath
2.74 -1.2 1.54 ± 2% perf-profile.children.cycles-pp.msgctl_down
1.71 -0.9 0.84 ± 4% perf-profile.children.cycles-pp.down_write
91.47 -0.8 90.65 perf-profile.children.cycles-pp.do_syscall_64
1.61 -0.8 0.80 ± 4% perf-profile.children.cycles-pp.rwsem_down_write_slowpath
1.42 -0.8 0.63 perf-profile.children.cycles-pp._raw_spin_lock_irqsave
2.96 -0.7 2.25 perf-profile.children.cycles-pp.secondary_startup_64_no_verify
2.96 -0.7 2.25 perf-profile.children.cycles-pp.cpu_startup_entry
2.96 -0.7 2.25 perf-profile.children.cycles-pp.do_idle
2.90 -0.7 2.22 perf-profile.children.cycles-pp.start_secondary
1.84 -0.5 1.33 perf-profile.children.cycles-pp.seq_read
1.84 -0.5 1.33 perf-profile.children.cycles-pp.seq_read_iter
1.85 -0.5 1.34 perf-profile.children.cycles-pp.ksys_read
1.85 -0.5 1.34 perf-profile.children.cycles-pp.vfs_read
1.89 -0.5 1.39 perf-profile.children.cycles-pp.read
1.88 -0.5 1.42 ± 2% perf-profile.children.cycles-pp.cpuidle_idle_call
0.99 -0.4 0.56 perf-profile.children.cycles-pp.rwsem_wake
1.72 -0.4 1.30 ± 2% perf-profile.children.cycles-pp.cpuidle_enter
1.71 -0.4 1.29 ± 2% perf-profile.children.cycles-pp.cpuidle_enter_state
1.35 -0.4 0.95 perf-profile.children.cycles-pp.intel_idle
0.49 ± 2% -0.4 0.09 ± 5% perf-profile.children.cycles-pp.up_read
3.01 ± 3% -0.4 2.65 ± 4% perf-profile.children.cycles-pp.__schedule
0.97 -0.4 0.61 ± 3% perf-profile.children.cycles-pp.sysvipc_proc_start
92.22 -0.3 91.87 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
1.04 -0.3 0.70 perf-profile.children.cycles-pp.try_to_wake_up
0.81 -0.3 0.51 perf-profile.children.cycles-pp.up_write
2.67 ± 3% -0.3 2.38 ± 5% perf-profile.children.cycles-pp.schedule
0.35 ± 3% -0.3 0.10 ± 5% perf-profile.children.cycles-pp.idr_get_next_ul
0.35 ± 3% -0.2 0.10 perf-profile.children.cycles-pp.idr_get_next
1.66 ± 3% -0.2 1.42 ± 5% perf-profile.children.cycles-pp.schedule_preempt_disabled
0.40 -0.2 0.17 ± 4% perf-profile.children.cycles-pp.rwsem_optimistic_spin
0.44 ± 2% -0.2 0.23 ± 2% perf-profile.children.cycles-pp.sysvipc_proc_next
0.67 -0.2 0.50 perf-profile.children.cycles-pp.flush_smp_call_function_queue
1.57 ± 2% -0.2 1.40 perf-profile.children.cycles-pp.__percpu_counter_sum
0.66 -0.2 0.51 perf-profile.children.cycles-pp.__flush_smp_call_function_queue
0.56 -0.1 0.44 perf-profile.children.cycles-pp.sched_ttwu_pending
0.51 -0.1 0.40 ± 2% perf-profile.children.cycles-pp.activate_task
0.49 -0.1 0.39 ± 2% perf-profile.children.cycles-pp.ttwu_do_activate
0.27 -0.1 0.17 ± 4% perf-profile.children.cycles-pp.msgctl_stat
0.48 -0.1 0.38 perf-profile.children.cycles-pp.dequeue_task_fair
0.41 ± 2% -0.1 0.32 perf-profile.children.cycles-pp.dequeue_entity
0.15 ± 3% -0.1 0.06 perf-profile.children.cycles-pp.osq_lock
0.15 ± 3% -0.1 0.06 ± 6% perf-profile.children.cycles-pp.rwsem_spin_on_owner
0.61 -0.1 0.52 ± 2% perf-profile.children.cycles-pp.update_load_avg
0.37 -0.1 0.28 perf-profile.children.cycles-pp.select_task_rq
0.36 -0.1 0.28 ± 2% perf-profile.children.cycles-pp.select_task_rq_fair
0.43 -0.1 0.35 ± 2% perf-profile.children.cycles-pp.enqueue_task_fair
0.36 ± 2% -0.1 0.28 ± 2% perf-profile.children.cycles-pp.schedule_idle
0.32 -0.1 0.25 ± 2% perf-profile.children.cycles-pp.enqueue_entity
1.84 -0.1 1.78 perf-profile.children.cycles-pp.wake_up_q
0.18 ± 3% -0.0 0.14 ± 4% perf-profile.children.cycles-pp.select_idle_sibling
0.17 ± 2% -0.0 0.13 perf-profile.children.cycles-pp.wake_affine
0.20 ± 2% -0.0 0.16 ± 3% perf-profile.children.cycles-pp.ttwu_queue_wakelist
0.16 ± 3% -0.0 0.12 perf-profile.children.cycles-pp.__smp_call_single_queue
0.14 ± 3% -0.0 0.11 ± 5% perf-profile.children.cycles-pp.select_idle_cpu
0.15 ± 2% -0.0 0.12 ± 3% perf-profile.children.cycles-pp.available_idle_cpu
0.14 ± 5% -0.0 0.11 ± 4% perf-profile.children.cycles-pp.update_curr
0.12 ± 4% -0.0 0.09 ± 5% perf-profile.children.cycles-pp.task_h_load
0.14 ± 2% -0.0 0.11 ± 3% perf-profile.children.cycles-pp.rwsem_mark_wake
0.10 ± 3% -0.0 0.07 ± 5% perf-profile.children.cycles-pp.switch_fpu_return
0.12 -0.0 0.09 ± 6% perf-profile.children.cycles-pp.menu_select
0.10 ± 4% -0.0 0.08 ± 8% perf-profile.children.cycles-pp.select_idle_core
0.09 ± 4% -0.0 0.07 ± 7% perf-profile.children.cycles-pp.switch_mm_irqs_off
0.17 ± 4% -0.0 0.15 ± 3% perf-profile.children.cycles-pp.__irq_exit_rcu
0.16 ± 3% -0.0 0.14 ± 4% perf-profile.children.cycles-pp.__do_softirq
0.12 ± 4% -0.0 0.09 ± 4% perf-profile.children.cycles-pp.llist_add_batch
0.08 ± 4% -0.0 0.06 ± 6% perf-profile.children.cycles-pp.sched_mm_cid_migrate_to
0.08 -0.0 0.06 perf-profile.children.cycles-pp.__switch_to
0.07 -0.0 0.05 perf-profile.children.cycles-pp.llist_reverse_order
0.11 ± 5% -0.0 0.09 ± 5% perf-profile.children.cycles-pp.prepare_task_switch
0.10 ± 4% -0.0 0.09 ± 7% perf-profile.children.cycles-pp.__update_load_avg_se
0.07 ± 7% -0.0 0.05 perf-profile.children.cycles-pp.restore_fpregs_from_fpstate
0.09 ± 5% -0.0 0.08 ± 4% perf-profile.children.cycles-pp.rebalance_domains
0.08 ± 4% -0.0 0.07 perf-profile.children.cycles-pp.update_rq_clock_task
0.06 ± 8% +0.0 0.07 perf-profile.children.cycles-pp.security_msg_queue_msgsnd
0.10 ± 4% +0.0 0.11 ± 4% perf-profile.children.cycles-pp.__cond_resched
0.09 +0.0 0.11 ± 3% perf-profile.children.cycles-pp.kmalloc_slab
0.09 ± 6% +0.0 0.11 perf-profile.children.cycles-pp.is_vmalloc_addr
0.13 ± 5% +0.0 0.15 ± 2% perf-profile.children.cycles-pp.syscall_exit_to_user_mode_prepare
0.10 ± 7% +0.0 0.13 ± 3% perf-profile.children.cycles-pp.format_decode
0.18 ± 2% +0.0 0.21 ± 2% perf-profile.children.cycles-pp.__list_add_valid
0.09 ± 11% +0.0 0.12 ± 13% perf-profile.children.cycles-pp.security_msg_msg_alloc
0.14 ± 6% +0.0 0.16 ± 4% perf-profile.children.cycles-pp.security_ipc_permission
0.10 ± 4% +0.0 0.13 ± 3% perf-profile.children.cycles-pp.number
0.02 ±141% +0.0 0.06 ± 8% perf-profile.children.cycles-pp.allocate_slab
0.19 ± 3% +0.0 0.23 ± 2% perf-profile.children.cycles-pp.obj_cgroup_charge
0.26 ± 4% +0.0 0.30 ± 3% perf-profile.children.cycles-pp.syscall_enter_from_user_mode
0.24 ± 5% +0.1 0.29 ± 4% perf-profile.children.cycles-pp.__get_obj_cgroup_from_memcg
0.57 +0.1 0.63 perf-profile.children.cycles-pp.ss_wakeup
0.47 ± 3% +0.1 0.53 ± 5% perf-profile.children.cycles-pp.get_obj_cgroup_from_current
0.34 ± 2% +0.1 0.41 perf-profile.children.cycles-pp.syscall_return_via_sysret
0.32 +0.1 0.39 perf-profile.children.cycles-pp.vsnprintf
0.41 +0.1 0.48 perf-profile.children.cycles-pp.__put_user_8
0.32 +0.1 0.39 perf-profile.children.cycles-pp.seq_printf
0.34 +0.1 0.42 perf-profile.children.cycles-pp.sysvipc_msg_proc_show
0.43 +0.1 0.51 ± 2% perf-profile.children.cycles-pp.__get_user_8
0.50 +0.1 0.59 ± 2% perf-profile.children.cycles-pp.__x64_sys_msgsnd
0.36 ± 2% +0.1 0.45 ± 2% perf-profile.children.cycles-pp.exit_to_user_mode_prepare
0.29 ± 3% +0.1 0.38 ± 2% perf-profile.children.cycles-pp.__virt_addr_valid
0.39 ± 3% +0.1 0.48 perf-profile.children.cycles-pp.__check_heap_object
0.34 ± 2% +0.1 0.45 ± 2% perf-profile.children.cycles-pp.ipcperms
0.61 +0.1 0.74 perf-profile.children.cycles-pp.mod_objcg_state
0.83 ± 5% +0.2 0.98 ± 2% perf-profile.children.cycles-pp._copy_from_user
0.66 +0.2 0.82 perf-profile.children.cycles-pp.syscall_exit_to_user_mode
0.48 ± 2% +0.2 0.65 perf-profile.children.cycles-pp.entry_SYSCALL_64_safe_stack
0.86 +0.2 1.06 perf-profile.children.cycles-pp.entry_SYSRETQ_unsafe_stack
1.12 +0.2 1.37 perf-profile.children.cycles-pp.__entry_text_start
0.56 ± 2% +0.4 0.98 perf-profile.children.cycles-pp.___slab_alloc
1.62 +0.4 2.04 perf-profile.children.cycles-pp.stress_msg
2.35 +0.6 2.92 perf-profile.children.cycles-pp.__list_del_entry_valid
44.55 +0.6 45.16 perf-profile.children.cycles-pp.do_msgrcv
2.68 +0.7 3.39 perf-profile.children.cycles-pp.memcg_slab_post_alloc_hook
3.11 +0.8 3.90 ± 2% perf-profile.children.cycles-pp.__kmem_cache_free
46.38 +1.0 47.36 perf-profile.children.cycles-pp.__libc_msgrcv
2.99 +1.0 4.00 perf-profile.children.cycles-pp.check_heap_object
3.87 +1.1 4.97 ± 8% perf-profile.children.cycles-pp._copy_to_user
3.61 +1.2 4.79 ± 2% perf-profile.children.cycles-pp.__slab_free
4.25 +1.4 5.69 perf-profile.children.cycles-pp.__check_object_size
4.86 +1.4 6.30 perf-profile.children.cycles-pp.__kmem_cache_alloc_node
4.97 +1.5 6.44 perf-profile.children.cycles-pp.percpu_counter_add_batch
5.03 +1.5 6.51 perf-profile.children.cycles-pp.__kmalloc
5.33 +1.7 7.00 perf-profile.children.cycles-pp.alloc_msg
36.43 +1.7 38.16 perf-profile.children.cycles-pp.do_msgsnd
7.07 +2.1 9.13 perf-profile.children.cycles-pp.load_msg
7.44 +2.2 9.62 ± 3% perf-profile.children.cycles-pp.free_msg
7.39 +2.3 9.68 ± 4% perf-profile.children.cycles-pp.store_msg
7.88 +2.4 10.28 ± 4% perf-profile.children.cycles-pp.do_msg_fill
39.75 +2.9 42.64 perf-profile.children.cycles-pp.__libc_msgsnd
11.25 +4.2 15.48 perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
87.71 +4.3 92.00 perf-profile.children.cycles-pp.stress_run
11.07 +6.5 17.57 perf-profile.children.cycles-pp._raw_spin_lock
22.77 -20.8 1.98 perf-profile.self.cycles-pp.idr_find
1.35 -0.4 0.95 perf-profile.self.cycles-pp.intel_idle
0.33 ± 2% -0.2 0.08 perf-profile.self.cycles-pp.idr_get_next_ul
0.44 ± 2% -0.2 0.21 ± 2% perf-profile.self.cycles-pp._raw_spin_lock_irqsave
0.26 -0.2 0.10 ± 4% perf-profile.self.cycles-pp.rwsem_down_read_slowpath
0.17 ± 2% -0.1 0.03 ± 70% perf-profile.self.cycles-pp._raw_spin_lock_irq
0.15 ± 3% -0.1 0.06 perf-profile.self.cycles-pp.osq_lock
0.30 ± 2% -0.0 0.25 perf-profile.self.cycles-pp.update_load_avg
0.16 ± 2% -0.0 0.12 ± 3% perf-profile.self.cycles-pp.__schedule
0.15 ± 2% -0.0 0.12 ± 4% perf-profile.self.cycles-pp.available_idle_cpu
0.12 ± 4% -0.0 0.09 ± 5% perf-profile.self.cycles-pp.task_h_load
0.09 ± 7% -0.0 0.06 ± 6% perf-profile.self.cycles-pp.rwsem_optimistic_spin
0.12 ± 4% -0.0 0.09 ± 4% perf-profile.self.cycles-pp.llist_add_batch
0.09 ± 4% -0.0 0.07 ± 7% perf-profile.self.cycles-pp.switch_mm_irqs_off
0.07 -0.0 0.05 perf-profile.self.cycles-pp.llist_reverse_order
0.17 ± 2% -0.0 0.15 ± 4% perf-profile.self.cycles-pp.__update_load_avg_cfs_rq
0.10 ± 5% -0.0 0.08 ± 6% perf-profile.self.cycles-pp.enqueue_task_fair
0.08 ± 4% -0.0 0.06 perf-profile.self.cycles-pp.__switch_to
0.10 -0.0 0.08 ± 5% perf-profile.self.cycles-pp.__update_load_avg_se
0.08 ± 6% -0.0 0.06 ± 6% perf-profile.self.cycles-pp.sched_mm_cid_migrate_to
0.07 ± 7% -0.0 0.05 perf-profile.self.cycles-pp.restore_fpregs_from_fpstate
0.07 ± 6% -0.0 0.06 perf-profile.self.cycles-pp.update_rq_clock_task
0.06 ± 7% -0.0 0.05 perf-profile.self.cycles-pp.menu_select
0.06 ± 6% +0.0 0.07 perf-profile.self.cycles-pp.security_msg_queue_msgrcv
0.07 ± 5% +0.0 0.08 ± 4% perf-profile.self.cycles-pp.is_vmalloc_addr
0.06 ± 9% +0.0 0.07 perf-profile.self.cycles-pp.__cond_resched
0.08 ± 6% +0.0 0.09 ± 5% perf-profile.self.cycles-pp.kmalloc_slab
0.10 ± 5% +0.0 0.11 ± 4% perf-profile.self.cycles-pp.vsnprintf
0.08 ± 4% +0.0 0.10 ± 3% perf-profile.self.cycles-pp.format_decode
0.09 ± 4% +0.0 0.11 ± 4% perf-profile.self.cycles-pp.do_msg_fill
0.16 ± 3% +0.0 0.19 perf-profile.self.cycles-pp.__list_add_valid
0.09 +0.0 0.11 ± 4% perf-profile.self.cycles-pp.number
0.08 ± 4% +0.0 0.10 ± 4% perf-profile.self.cycles-pp.alloc_msg
0.11 ± 3% +0.0 0.13 ± 2% perf-profile.self.cycles-pp.__kmalloc
0.12 ± 4% +0.0 0.14 ± 5% perf-profile.self.cycles-pp.security_ipc_permission
0.08 ± 14% +0.0 0.11 ± 15% perf-profile.self.cycles-pp.security_msg_msg_alloc
0.21 ± 3% +0.0 0.24 perf-profile.self.cycles-pp.syscall_enter_from_user_mode
0.14 ± 2% +0.0 0.17 ± 3% perf-profile.self.cycles-pp.exit_to_user_mode_prepare
0.16 ± 3% +0.0 0.19 ± 3% perf-profile.self.cycles-pp.obj_cgroup_charge
0.18 ± 2% +0.0 0.22 ± 2% perf-profile.self.cycles-pp.store_msg
0.23 ± 7% +0.0 0.28 ± 4% perf-profile.self.cycles-pp.__get_obj_cgroup_from_memcg
0.28 ± 2% +0.1 0.34 ± 2% perf-profile.self.cycles-pp.do_syscall_64
0.54 +0.1 0.60 perf-profile.self.cycles-pp.ss_wakeup
0.34 ± 2% +0.1 0.41 perf-profile.self.cycles-pp.syscall_return_via_sysret
0.40 +0.1 0.47 perf-profile.self.cycles-pp.__put_user_8
0.29 ± 3% +0.1 0.36 perf-profile.self.cycles-pp.__entry_text_start
0.41 +0.1 0.48 ± 3% perf-profile.self.cycles-pp.__get_user_8
0.27 ± 3% +0.1 0.35 ± 2% perf-profile.self.cycles-pp.__virt_addr_valid
0.37 ± 3% +0.1 0.46 perf-profile.self.cycles-pp.__check_heap_object
0.35 +0.1 0.44 ± 6% perf-profile.self.cycles-pp.kfree
0.46 ± 2% +0.1 0.55 ± 2% perf-profile.self.cycles-pp.__libc_msgsnd
0.31 ± 3% +0.1 0.41 ± 2% perf-profile.self.cycles-pp.ipcperms
0.47 +0.1 0.57 ± 2% perf-profile.self.cycles-pp.__libc_msgrcv
0.57 +0.1 0.69 perf-profile.self.cycles-pp.mod_objcg_state
0.80 ± 5% +0.1 0.93 ± 2% perf-profile.self.cycles-pp._copy_from_user
0.26 +0.1 0.40 perf-profile.self.cycles-pp.syscall_exit_to_user_mode
0.48 ± 2% +0.2 0.65 perf-profile.self.cycles-pp.entry_SYSCALL_64_safe_stack
0.84 +0.2 1.02 perf-profile.self.cycles-pp.entry_SYSRETQ_unsafe_stack
0.36 +0.2 0.55 ± 3% perf-profile.self.cycles-pp.load_msg
0.88 +0.2 1.08 perf-profile.self.cycles-pp.__kmem_cache_alloc_node
0.61 +0.2 0.85 perf-profile.self.cycles-pp.__percpu_counter_sum
0.76 ± 2% +0.3 1.01 ± 2% perf-profile.self.cycles-pp.wake_up_q
0.67 +0.3 0.93 perf-profile.self.cycles-pp.__check_object_size
0.48 ± 2% +0.4 0.87 ± 2% perf-profile.self.cycles-pp.___slab_alloc
1.57 +0.4 1.99 perf-profile.self.cycles-pp.stress_msg
0.77 +0.5 1.25 perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe
2.14 +0.5 2.67 perf-profile.self.cycles-pp._raw_spin_lock
2.32 +0.6 2.88 perf-profile.self.cycles-pp.__list_del_entry_valid
2.49 +0.7 3.14 ± 2% perf-profile.self.cycles-pp.__kmem_cache_free
2.43 +0.7 3.08 perf-profile.self.cycles-pp.memcg_slab_post_alloc_hook
2.58 +0.9 3.48 perf-profile.self.cycles-pp.check_heap_object
3.82 +1.1 4.91 ± 8% perf-profile.self.cycles-pp._copy_to_user
3.24 +1.2 4.41 perf-profile.self.cycles-pp.do_msgrcv
3.58 +1.2 4.74 ± 2% perf-profile.self.cycles-pp.__slab_free
4.86 +1.4 6.32 perf-profile.self.cycles-pp.percpu_counter_add_batch
7.55 +3.2 10.74 perf-profile.self.cycles-pp.ipc_obtain_object_check
3.20 +3.2 6.42 perf-profile.self.cycles-pp.do_msgsnd
11.14 +4.2 15.31 perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
Disclaimer:
Results have been estimated based on internal Intel analysis and are provided
for informational purposes only. Any difference in system hardware or software
design or configuration may affect actual performance.
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
