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charset="utf-8" hi, Jesper Dangaard Brouer, and all, we made some investigation for this regression and confirmed the code change in 21c38a3bd4 is irrelevant to stress-ng performance regression, instead, i= t's a code alignment issue. if we applied below patch for both this commit and parent, the regression w= ill disappear. diff --git a/Kbuild b/Kbuild index 464b34a08f51..829d13a010b7 100644 --- a/Kbuild +++ b/Kbuild @@ -80,11 +80,11 @@ obj-y +=3D init/ obj-y +=3D usr/ obj-y +=3D arch/$(SRCARCH)/ obj-y +=3D $(ARCH_CORE) +obj-y +=3D ipc/ obj-y +=3D kernel/ obj-y +=3D certs/ obj-y +=3D mm/ obj-y +=3D fs/ -obj-y +=3D ipc/ obj-y +=3D security/ obj-y +=3D crypto/ obj-$(CONFIG_BLOCK) +=3D block/ we still make out below formal report FYI. and Feng Tang (Cced) is working = on a patch to mitigate this kind of less meaningful performance changes due to c= ode alignment. Hello, kernel test robot noticed a -17.7% regression of stress-ng.msg.ops_per_sec = on: commit: 21c38a3bd4ee3fb7337d013a638302fb5e5f9dc2 ("cgroup/rstat: add cgroup= _rstat_cpu_lock helpers and tracepoints") https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master testcase: stress-ng test machine: 256 threads 2 sockets GENUINE INTEL(R) XEON(R) (Sierra Forest= ) with 128G memory parameters: nr_threads: 100% testtime: 60s 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/20240724/202407241523.14878db1-oliv= er.sang@intel.com =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D compiler/cpufreq_governor/kconfig/nr_threads/rootfs/tbox_group/test/testcas= e/testtime: gcc-13/performance/x86_64-rhel-8.3/100%/debian-12-x86_64-20240206.cgz/lkp= -srf-2sp1/msg/stress-ng/60s commit:=20 c1457d9aad ("selftests/cgroup: Drop define _GNU_SOURCE") 21c38a3bd4 ("cgroup/rstat: add cgroup_rstat_cpu_lock helpers and tracepoi= nts") c1457d9aad5ee2fe 21c38a3bd4ee3fb7337d013a638=20 ---------------- ---------------------------=20 %stddev %change %stddev \ | \ =20 11013328 -14.0% 9475268 cpuidle..usage 338790 =C2=B1 2% -11.5% 299752 =C2=B1 2% meminfo.Active 338760 =C2=B1 2% -11.5% 299723 =C2=B1 2% meminfo.Active(anon) 300946 =C2=B1 3% -20.9% 238050 =C2=B1 26% numa-meminfo.node1.= Active 300932 =C2=B1 3% -20.9% 238045 =C2=B1 26% numa-meminfo.node1.= Active(anon) 611478 =C2=B1 14% -21.7% 478711 =C2=B1 21% numa-meminfo.node1.= Shmem 75304 =C2=B1 3% -21.4% 59175 =C2=B1 26% numa-vmstat.node1.n= r_active_anon 153254 =C2=B1 14% -21.8% 119804 =C2=B1 21% numa-vmstat.node1.n= r_shmem 75303 =C2=B1 3% -21.4% 59175 =C2=B1 26% numa-vmstat.node1.n= r_zone_active_anon 71.66 +8.9% 78.05 vmstat.cpu.id 68.36 =C2=B1 12% -20.3% 54.46 =C2=B1 8% vmstat.procs.r 250061 -18.3% 204251 vmstat.system.cs 287875 -18.4% 235023 vmstat.system.in 0.50 -0.1 0.43 =C2=B1 3% mpstat.cpu.all.irq% 0.12 =C2=B1 2% -0.0 0.10 mpstat.cpu.all.soft% 27.05 -6.3 20.79 mpstat.cpu.all.sys% 1.58 -0.3 1.31 mpstat.cpu.all.usr% 33.01 -23.2% 25.34 mpstat.max_utilization_pct 831.17 =C2=B1 5% -23.7% 634.00 =C2=B1 7% perf-c2c.DRAM.local 27497 -26.4% 20232 =C2=B1 2% perf-c2c.DRAM.remote 95989 -22.4% 74505 perf-c2c.HITM.local 22829 -27.2% 16620 =C2=B1 2% perf-c2c.HITM.remote 118818 -23.3% 91125 perf-c2c.HITM.total 7.763e+08 -17.7% 6.391e+08 stress-ng.msg.ops 12937976 -17.7% 10650694 stress-ng.msg.ops_per_sec 20708 -25.9% 15335 stress-ng.time.involuntary_co= ntext_switches 7333 -22.5% 5682 stress-ng.time.percent_of_cpu= _this_job_got 4240 -22.7% 3279 stress-ng.time.system_time 195.77 -19.8% 157.09 stress-ng.time.user_time 7897285 -18.3% 6450672 stress-ng.time.voluntary_cont= ext_switches 84383 =C2=B1 3% -11.6% 74585 =C2=B1 3% proc-vmstat.nr_acti= ve_anon 947441 -1.6% 932675 proc-vmstat.nr_file_pages 270183 -2.2% 264202 proc-vmstat.nr_inactive_anon 141423 =C2=B1 3% -8.4% 129608 =C2=B1 2% proc-vmstat.nr_mapp= ed 180981 -8.2% 166203 proc-vmstat.nr_shmem 84383 =C2=B1 3% -11.6% 74585 =C2=B1 3% proc-vmstat.nr_zone= _active_anon 270183 -2.2% 264202 proc-vmstat.nr_zone_inactive_= anon 2030924 -7.1% 1886998 proc-vmstat.numa_hit 1766802 -8.1% 1622970 proc-vmstat.numa_local 2118829 -7.0% 1971226 proc-vmstat.pgalloc_normal 1014503 -5.2% 961850 proc-vmstat.pgfault 1776085 =C2=B1 2% -6.8% 1655949 =C2=B1 2% proc-vmstat.pgfree 658538 =C2=B1 2% -40.3% 392887 sched_debug.cfs_rq:/.avg= _vruntime.avg 1004627 =C2=B1 2% -38.4% 618736 =C2=B1 8% sched_debug.cfs_rq:= /.avg_vruntime.max 463772 =C2=B1 8% -34.4% 304006 sched_debug.cfs_rq:/.avg= _vruntime.min 55077 =C2=B1 4% -25.7% 40920 sched_debug.cfs_rq:/.avg= _vruntime.stddev 658538 =C2=B1 2% -40.3% 392887 sched_debug.cfs_rq:/.min= _vruntime.avg 1004627 =C2=B1 2% -38.4% 618736 =C2=B1 8% sched_debug.cfs_rq:= /.min_vruntime.max 463772 =C2=B1 8% -34.4% 304006 sched_debug.cfs_rq:/.min= _vruntime.min 55077 =C2=B1 4% -25.7% 40920 sched_debug.cfs_rq:/.min= _vruntime.stddev 193.88 =C2=B1 5% -19.0% 156.99 =C2=B1 6% sched_debug.cfs_rq:= /.runnable_avg.avg 156.63 =C2=B1 6% -11.0% 139.47 =C2=B1 5% sched_debug.cfs_rq:= /.runnable_avg.stddev 193.51 =C2=B1 5% -19.0% 156.69 =C2=B1 6% sched_debug.cfs_rq:= /.util_avg.avg 156.53 =C2=B1 6% -11.2% 139.06 =C2=B1 5% sched_debug.cfs_rq:= /.util_avg.stddev 29.90 =C2=B1 11% -28.2% 21.48 =C2=B1 17% sched_debug.cfs_rq:= /.util_est.avg 155612 =C2=B1 8% -14.5% 133052 =C2=B1 3% sched_debug.cpu.avg= _idle.stddev 31373 -17.6% 25848 sched_debug.cpu.nr_switches.a= vg 24963 =C2=B1 5% -16.7% 20782 =C2=B1 6% sched_debug.cpu.nr_= switches.min 141.42 =C2=B1 6% -57.2% 60.50 =C2=B1 21% sched_debug.cpu.nr_= uninterruptible.max -1239 -81.4% -230.33 sched_debug.cpu.nr_uninterrup= tible.min 81.43 =C2=B1 8% -77.5% 18.29 =C2=B1 11% sched_debug.cpu.nr_= uninterruptible.stddev 0.96 -4.7% 0.91 =C2=B1 2% perf-stat.i.MPKI 8.823e+09 -20.0% 7.06e+09 perf-stat.i.branch-instructio= ns 1.59 +0.0 1.64 perf-stat.i.branch-miss-rate% 1.394e+08 -16.9% 1.158e+08 perf-stat.i.branch-misses 9.60 -0.8 8.76 =C2=B1 2% perf-stat.i.cache-miss-r= ate% 42966024 -23.0% 33093243 =C2=B1 2% perf-stat.i.cache-misses 4.653e+08 -16.0% 3.908e+08 perf-stat.i.cache-references 261124 -18.2% 213609 perf-stat.i.context-switches 4.44 -3.0% 4.31 perf-stat.i.cpi 2.038e+11 -22.2% 1.585e+11 perf-stat.i.cpu-cycles 41405 -34.6% 27075 perf-stat.i.cpu-migrations 4.563e+10 -19.5% 3.672e+10 perf-stat.i.instructions 0.23 +2.8% 0.23 perf-stat.i.ipc 0.94 -98.3% 0.02 =C2=B1 44% perf-stat.i.metric.K/sec 15289 =C2=B1 2% -8.2% 14035 =C2=B1 2% perf-stat.i.minor-f= aults 15290 =C2=B1 2% -8.2% 14036 =C2=B1 2% perf-stat.i.page-fa= ults 1.56 +0.1 1.63 perf-stat.overall.branch-miss= -rate% 9.04 -0.7 8.36 =C2=B1 2% perf-stat.overall.cache-= miss-rate% 4.46 -3.2% 4.32 perf-stat.overall.cpi 0.22 +3.4% 0.23 perf-stat.overall.ipc 8.733e+09 -20.3% 6.963e+09 perf-stat.ps.branch-instructi= ons 1.364e+08 -17.0% 1.132e+08 perf-stat.ps.branch-misses 42281735 -23.1% 32530958 =C2=B1 2% perf-stat.ps.cache-misses 4.676e+08 -16.8% 3.89e+08 perf-stat.ps.cache-references 257335 -18.3% 210344 perf-stat.ps.context-switches 2.016e+11 -22.4% 1.564e+11 perf-stat.ps.cpu-cycles 40985 -34.9% 26692 perf-stat.ps.cpu-migrations 4.517e+10 -19.8% 3.622e+10 perf-stat.ps.instructions 14314 =C2=B1 2% -6.2% 13432 =C2=B1 2% perf-stat.ps.minor-= faults 14315 =C2=B1 2% -6.2% 13432 perf-stat.ps.page-faults 2.764e+12 -19.5% 2.225e+12 perf-stat.total.instructions 35.46 -10.8 24.66 perf-profile.calltrace.cycles= -pp.__percpu_counter_sum.msgctl_info.ksys_msgctl.do_syscall_64.entry_SYSCAL= L_64_after_hwframe 33.85 =C2=B1 2% -10.7 23.11 perf-profile.calltrace.c= ycles-pp._raw_spin_lock_irqsave.__percpu_counter_sum.msgctl_info.ksys_msgct= l.do_syscall_64 33.74 =C2=B1 2% -10.7 23.01 perf-profile.calltrace.c= ycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.__percpu_c= ounter_sum.msgctl_info.ksys_msgctl 38.54 -9.0 29.55 perf-profile.calltrace.cycles= -pp.msgctl_info.ksys_msgctl.do_syscall_64.entry_SYSCALL_64_after_hwframe.ms= gctl 2.99 -0.8 2.23 =C2=B1 8% perf-profile.calltrace.c= ycles-pp.percpu_counter_add_batch.do_msgrcv.do_syscall_64.entry_SYSCALL_64_= after_hwframe.__libc_msgrcv 2.19 =C2=B1 6% -0.7 1.44 =C2=B1 11% perf-profile.calltr= ace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock.do_msgrcv.do_= syscall_64.entry_SYSCALL_64_after_hwframe 2.74 =C2=B1 7% -0.5 2.24 perf-profile.calltrace.c= ycles-pp.percpu_counter_add_batch.do_msgsnd.do_syscall_64.entry_SYSCALL_64_= after_hwframe.__libc_msgsnd 3.26 -0.3 2.97 perf-profile.calltrace.cycles= -pp.native_queued_spin_lock_slowpath._raw_spin_lock.do_msgsnd.do_syscall_64= .entry_SYSCALL_64_after_hwframe 3.90 -0.3 3.63 perf-profile.calltrace.cycles= -pp._raw_spin_lock.do_msgsnd.do_syscall_64.entry_SYSCALL_64_after_hwframe._= _libc_msgsnd 0.68 =C2=B1 6% +0.1 0.74 perf-profile.calltrace.c= ycles-pp._copy_from_user.load_msg.do_msgsnd.do_syscall_64.entry_SYSCALL_64_= after_hwframe 0.90 +0.1 1.03 perf-profile.calltrace.cycles= -pp.intel_idle.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle 0.55 =C2=B1 44% +0.2 0.70 perf-profile.calltrace.c= ycles-pp.entry_SYSCALL_64.__libc_msgsnd.stress_msg 0.96 =C2=B1 5% +0.2 1.14 =C2=B1 3% perf-profile.calltr= ace.cycles-pp._copy_to_user.store_msg.do_msg_fill.do_msgrcv.do_syscall_64 1.32 +0.2 1.55 perf-profile.calltrace.cycles= -pp.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle.cpu_startup= _entry 1.36 +0.2 1.59 perf-profile.calltrace.cycles= -pp.cpuidle_enter.cpuidle_idle_call.do_idle.cpu_startup_entry.start_seconda= ry 0.42 =C2=B1 44% +0.2 0.66 perf-profile.calltrace.c= ycles-pp.rwsem_wake.up_write.msgctl_down.ksys_msgctl.do_syscall_64 0.46 =C2=B1 44% +0.3 0.72 perf-profile.calltrace.c= ycles-pp.up_write.msgctl_down.ksys_msgctl.do_syscall_64.entry_SYSCALL_64_af= ter_hwframe 2.12 +0.3 2.40 perf-profile.calltrace.cycles= -pp.cpuidle_idle_call.do_idle.cpu_startup_entry.start_secondary.common_star= tup_64 3.85 +0.3 4.19 perf-profile.calltrace.cycles= -pp.common_startup_64 3.59 +0.3 3.94 perf-profile.calltrace.cycles= -pp.start_secondary.common_startup_64 3.58 +0.3 3.93 perf-profile.calltrace.cycles= -pp.do_idle.cpu_startup_entry.start_secondary.common_startup_64 3.59 +0.3 3.94 perf-profile.calltrace.cycles= -pp.cpu_startup_entry.start_secondary.common_startup_64 2.60 =C2=B1 6% +0.4 3.00 =C2=B1 2% perf-profile.calltr= ace.cycles-pp.store_msg.do_msg_fill.do_msgrcv.do_syscall_64.entry_SYSCALL_6= 4_after_hwframe 3.37 +0.4 3.81 =C2=B1 2% perf-profile.calltrace.c= ycles-pp.do_msg_fill.do_msgrcv.do_syscall_64.entry_SYSCALL_64_after_hwframe= .__libc_msgrcv 0.43 =C2=B1 44% +0.5 0.98 perf-profile.calltrace.c= ycles-pp._raw_spin_lock_irq.rwsem_down_write_slowpath.down_write.msgctl_dow= n.ksys_msgctl 0.78 =C2=B1 6% +0.6 1.34 =C2=B1 3% perf-profile.calltr= ace.cycles-pp.seq_read_iter.seq_read.vfs_read.ksys_read.do_syscall_64 0.79 =C2=B1 6% +0.6 1.35 =C2=B1 3% perf-profile.calltr= ace.cycles-pp.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwfra= me.read 0.78 =C2=B1 6% +0.6 1.34 =C2=B1 3% perf-profile.calltr= ace.cycles-pp.seq_read.vfs_read.ksys_read.do_syscall_64.entry_SYSCALL_64_af= ter_hwframe 0.00 +0.7 0.65 =C2=B1 4% perf-profile.calltrace.c= ycles-pp.rwsem_down_read_slowpath.down_read.sysvipc_proc_start.seq_read_ite= r.seq_read 0.00 +0.7 0.67 =C2=B1 4% perf-profile.calltrace.c= ycles-pp.down_read.sysvipc_proc_start.seq_read_iter.seq_read.vfs_read 0.70 =C2=B1 44% +0.7 1.37 =C2=B1 2% perf-profile.calltr= ace.cycles-pp.entry_SYSCALL_64_after_hwframe.read.stress_msg 0.68 =C2=B1 44% +0.7 1.35 =C2=B1 3% perf-profile.calltr= ace.cycles-pp.ksys_read.do_syscall_64.entry_SYSCALL_64_after_hwframe.read.s= tress_msg 0.69 =C2=B1 44% +0.7 1.37 =C2=B1 2% perf-profile.calltr= ace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.read.stress_msg 0.70 =C2=B1 44% +0.7 1.38 =C2=B1 2% perf-profile.calltr= ace.cycles-pp.read.stress_msg 0.00 +0.7 0.69 =C2=B1 4% perf-profile.calltrace.c= ycles-pp.sysvipc_proc_start.seq_read_iter.seq_read.vfs_read.ksys_read 0.67 =C2=B1 9% +0.9 1.56 perf-profile.calltrace.c= ycles-pp.rwsem_optimistic_spin.rwsem_down_write_slowpath.down_write.msgctl_= down.ksys_msgctl 0.00 +0.9 0.90 perf-profile.calltrace.cycles= -pp.native_queued_spin_lock_slowpath._raw_spin_lock_irq.rwsem_down_write_sl= owpath.down_write.msgctl_down 0.00 +1.2 1.19 =C2=B1 2% perf-profile.calltrace.c= ycles-pp.osq_lock.rwsem_optimistic_spin.rwsem_down_write_slowpath.down_writ= e.msgctl_down 1.52 =C2=B1 8% +1.4 2.94 perf-profile.calltrace.c= ycles-pp.rwsem_down_write_slowpath.down_write.msgctl_down.ksys_msgctl.do_sy= scall_64 1.58 =C2=B1 8% +1.5 3.03 perf-profile.calltrace.c= ycles-pp.down_write.msgctl_down.ksys_msgctl.do_syscall_64.entry_SYSCALL_64_= after_hwframe 2.24 =C2=B1 7% +1.7 3.89 perf-profile.calltrace.c= ycles-pp.msgctl_down.ksys_msgctl.do_syscall_64.entry_SYSCALL_64_after_hwfra= me.msgctl 2.58 =C2=B1 7% +1.8 4.34 perf-profile.calltrace.c= ycles-pp.rwsem_down_read_slowpath.down_read.msgctl_info.ksys_msgctl.do_sysc= all_64 1.34 =C2=B1 8% +1.8 3.12 =C2=B1 2% perf-profile.calltr= ace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irq.rwsem_dow= n_read_slowpath.down_read.msgctl_info 1.43 =C2=B1 8% +1.8 3.25 =C2=B1 2% perf-profile.calltr= ace.cycles-pp._raw_spin_lock_irq.rwsem_down_read_slowpath.down_read.msgctl_= info.ksys_msgctl 2.70 =C2=B1 7% +1.8 4.52 perf-profile.calltrace.c= ycles-pp.down_read.msgctl_info.ksys_msgctl.do_syscall_64.entry_SYSCALL_64_a= fter_hwframe 19.07 =C2=B1 3% +2.1 21.20 =C2=B1 3% perf-profile.calltr= ace.cycles-pp.do_msgrcv.do_syscall_64.entry_SYSCALL_64_after_hwframe.__libc= _msgrcv 19.33 =C2=B1 3% +2.2 21.49 =C2=B1 3% perf-profile.calltr= ace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__libc_msgrcv 19.39 =C2=B1 3% +2.2 21.56 =C2=B1 3% perf-profile.calltr= ace.cycles-pp.entry_SYSCALL_64_after_hwframe.__libc_msgrcv 20.22 =C2=B1 3% +2.2 22.43 =C2=B1 3% perf-profile.calltr= ace.cycles-pp.__libc_msgrcv 8.31 =C2=B1 2% +3.5 11.79 perf-profile.calltrace.c= ycles-pp.idr_find.ipc_obtain_object_check.do_msgrcv.do_syscall_64.entry_SYS= CALL_64_after_hwframe 7.97 =C2=B1 2% +3.5 11.46 perf-profile.calltrace.c= ycles-pp.idr_find.ipc_obtain_object_check.do_msgsnd.do_syscall_64.entry_SYS= CALL_64_after_hwframe 10.10 +3.6 13.66 perf-profile.calltrace.cycles= -pp.ipc_obtain_object_check.do_msgrcv.do_syscall_64.entry_SYSCALL_64_after_= hwframe.__libc_msgrcv 9.71 +3.6 13.30 perf-profile.calltrace.cycles= -pp.ipc_obtain_object_check.do_msgsnd.do_syscall_64.entry_SYSCALL_64_after_= hwframe.__libc_msgsnd 18.24 =C2=B1 36% +5.8 24.05 perf-profile.calltrace.c= ycles-pp.do_msgsnd.do_syscall_64.entry_SYSCALL_64_after_hwframe.__libc_msgs= nd.stress_msg 18.98 =C2=B1 36% +6.0 24.96 perf-profile.calltrace.c= ycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__libc_msgsnd.stress_= msg 19.08 =C2=B1 36% +6.0 25.07 perf-profile.calltrace.c= ycles-pp.entry_SYSCALL_64_after_hwframe.__libc_msgsnd.stress_msg 20.09 =C2=B1 36% +6.2 26.33 perf-profile.calltrace.c= ycles-pp.__libc_msgsnd.stress_msg 35.49 -10.8 24.68 perf-profile.children.cycles-= pp.__percpu_counter_sum 34.24 =C2=B1 2% -10.6 23.68 perf-profile.children.cy= cles-pp._raw_spin_lock_irqsave 38.54 -9.0 29.55 perf-profile.children.cycles-= pp.msgctl_info 41.48 -8.8 32.65 perf-profile.children.cycles-= pp.native_queued_spin_lock_slowpath 41.12 -7.4 33.76 perf-profile.children.cycles-= pp.ksys_msgctl 41.44 -7.3 34.09 perf-profile.children.cycles-= pp.msgctl 5.82 -1.3 4.56 perf-profile.children.cycles-= pp.percpu_counter_add_batch 89.95 -0.8 89.17 perf-profile.children.cycles-= pp.do_syscall_64 90.24 -0.8 89.48 perf-profile.children.cycles-= pp.entry_SYSCALL_64_after_hwframe 7.07 -0.7 6.36 perf-profile.children.cycles-= pp._raw_spin_lock 1.54 =C2=B1 2% -0.4 1.16 perf-profile.children.cy= cles-pp.newidle_balance 1.58 -0.4 1.21 perf-profile.children.cycles-= pp.pick_next_task_fair 2.58 -0.4 2.23 perf-profile.children.cycles-= pp.__schedule 1.48 =C2=B1 2% -0.4 1.12 perf-profile.children.cy= cles-pp.load_balance 2.01 -0.4 1.66 perf-profile.children.cycles-= pp.schedule 1.27 -0.3 1.00 =C2=B1 2% perf-profile.children.cy= cles-pp.find_busiest_group 1.27 -0.3 0.99 =C2=B1 2% perf-profile.children.cy= cles-pp.update_sd_lb_stats 1.22 -0.3 0.96 =C2=B1 2% perf-profile.children.cy= cles-pp.update_sg_lb_stats 1.19 -0.2 0.98 perf-profile.children.cycles-= pp.schedule_preempt_disabled 0.13 =C2=B1 6% -0.0 0.08 =C2=B1 5% perf-profile.childr= en.cycles-pp.raw_spin_rq_lock_nested 0.32 =C2=B1 2% -0.0 0.29 =C2=B1 3% perf-profile.childr= en.cycles-pp.asm_sysvec_call_function_single 0.32 -0.0 0.29 =C2=B1 2% perf-profile.children.cy= cles-pp.idle_cpu 0.32 -0.0 0.29 =C2=B1 4% perf-profile.children.cy= cles-pp.sysvec_call_function_single 0.09 =C2=B1 4% -0.0 0.06 =C2=B1 6% perf-profile.childr= en.cycles-pp.find_busiest_queue 0.19 =C2=B1 3% -0.0 0.17 =C2=B1 3% perf-profile.childr= en.cycles-pp.update_blocked_averages 0.14 =C2=B1 3% -0.0 0.12 =C2=B1 4% perf-profile.childr= en.cycles-pp.ss_wakeup 0.08 =C2=B1 4% -0.0 0.06 perf-profile.children.cy= cles-pp.cmd_record 0.35 -0.0 0.33 =C2=B1 2% perf-profile.children.cy= cles-pp._nohz_idle_balance 0.08 =C2=B1 4% -0.0 0.06 =C2=B1 6% perf-profile.childr= en.cycles-pp.main 0.08 =C2=B1 4% -0.0 0.06 =C2=B1 6% perf-profile.childr= en.cycles-pp.run_builtin 0.10 =C2=B1 4% +0.0 0.12 =C2=B1 4% perf-profile.childr= en.cycles-pp.tick_nohz_next_event 0.31 +0.0 0.32 perf-profile.children.cycles-= pp.tick_nohz_stop_tick 0.12 +0.0 0.13 =C2=B1 3% perf-profile.children.cy= cles-pp.rwsem_mark_wake 0.26 +0.0 0.27 perf-profile.children.cycles-= pp.sysvipc_msg_proc_show 0.13 =C2=B1 3% +0.0 0.15 =C2=B1 2% perf-profile.childr= en.cycles-pp.hrtimer_start_range_ns 0.14 =C2=B1 3% +0.0 0.16 perf-profile.children.cy= cles-pp.quiet_vmstat 0.10 =C2=B1 4% +0.0 0.12 =C2=B1 3% perf-profile.childr= en.cycles-pp.rebalance_domains 0.14 =C2=B1 2% +0.0 0.16 =C2=B1 2% perf-profile.childr= en.cycles-pp.tick_nohz_get_sleep_length 0.05 +0.0 0.07 perf-profile.children.cycles-= pp.osq_unlock 0.31 +0.0 0.33 perf-profile.children.cycles-= pp.tick_nohz_idle_stop_tick 0.38 +0.0 0.40 perf-profile.children.cycles-= pp.__get_user_8 0.38 +0.0 0.40 perf-profile.children.cycles-= pp.__x64_sys_msgsnd 0.61 +0.0 0.63 perf-profile.children.cycles-= pp.flush_smp_call_function_queue 0.09 =C2=B1 4% +0.0 0.11 =C2=B1 19% perf-profile.childr= en.cycles-pp._find_next_and_bit 0.30 +0.0 0.32 =C2=B1 2% perf-profile.children.cy= cles-pp.ipcperms 0.17 =C2=B1 2% +0.0 0.20 =C2=B1 2% perf-profile.childr= en.cycles-pp.tick_nohz_restart_sched_tick 0.12 =C2=B1 3% +0.0 0.15 =C2=B1 3% perf-profile.childr= en.cycles-pp.therm_throt_process 0.20 =C2=B1 2% +0.0 0.24 =C2=B1 2% perf-profile.childr= en.cycles-pp.msgctl_stat 0.38 +0.0 0.42 perf-profile.children.cycles-= pp.__put_user_8 0.27 +0.0 0.30 =C2=B1 2% perf-profile.children.cy= cles-pp.tick_nohz_idle_exit 0.31 =C2=B1 3% +0.0 0.35 =C2=B1 7% perf-profile.childr= en.cycles-pp.nohz_balance_exit_idle 0.28 +0.0 0.32 =C2=B1 2% perf-profile.children.cy= cles-pp.menu_select 0.72 +0.0 0.77 perf-profile.children.cycles-= pp._copy_from_user 0.00 +0.1 0.05 perf-profile.children.cycles-= pp.ipcctl_obtain_check 0.21 =C2=B1 3% +0.1 0.27 perf-profile.children.cy= cles-pp.task_work_run 0.46 +0.1 0.52 =C2=B1 2% perf-profile.children.cy= cles-pp.__radix_tree_lookup 0.20 =C2=B1 2% +0.1 0.26 perf-profile.children.cy= cles-pp.task_mm_cid_work 0.48 +0.1 0.54 perf-profile.children.cycles-= pp.syscall_exit_to_user_mode 1.32 =C2=B1 2% +0.1 1.38 =C2=B1 2% perf-profile.childr= en.cycles-pp.stress_msg_receiver 0.26 +0.1 0.32 =C2=B1 2% perf-profile.children.cy= cles-pp.intel_thermal_interrupt 0.17 =C2=B1 4% +0.1 0.23 perf-profile.children.cy= cles-pp.rwsem_spin_on_owner 0.26 =C2=B1 2% +0.1 0.32 =C2=B1 2% perf-profile.childr= en.cycles-pp.__sysvec_thermal 0.19 =C2=B1 2% +0.1 0.26 =C2=B1 9% perf-profile.childr= en.cycles-pp.kick_ilb 1.11 +0.1 1.19 perf-profile.children.cycles-= pp.entry_SYSRETQ_unsafe_stack 0.24 =C2=B1 3% +0.1 0.33 =C2=B1 2% perf-profile.childr= en.cycles-pp.up_read 1.35 +0.1 1.44 perf-profile.children.cycles-= pp.entry_SYSCALL_64 0.34 =C2=B1 2% +0.1 0.43 =C2=B1 2% perf-profile.childr= en.cycles-pp.sysvec_thermal 1.10 =C2=B1 2% +0.1 1.19 =C2=B1 4% perf-profile.childr= en.cycles-pp.update_process_times 1.15 =C2=B1 2% +0.1 1.25 =C2=B1 4% perf-profile.childr= en.cycles-pp.__hrtimer_run_queues 1.14 =C2=B1 2% +0.1 1.24 =C2=B1 4% perf-profile.childr= en.cycles-pp.tick_nohz_handler 0.38 =C2=B1 2% +0.1 0.48 perf-profile.children.cy= cles-pp.asm_sysvec_thermal 1.20 +0.1 1.31 =C2=B1 3% perf-profile.children.cy= cles-pp.hrtimer_interrupt 1.21 =C2=B1 2% +0.1 1.32 =C2=B1 3% perf-profile.childr= en.cycles-pp.__sysvec_apic_timer_interrupt 1.36 +0.1 1.49 =C2=B1 3% perf-profile.children.cy= cles-pp.sysvec_apic_timer_interrupt 1.41 +0.1 1.54 =C2=B1 2% perf-profile.children.cy= cles-pp.asm_sysvec_apic_timer_interrupt 0.13 =C2=B1 3% +0.1 0.26 =C2=B1 4% perf-profile.childr= en.cycles-pp.idr_get_next 0.12 =C2=B1 4% +0.1 0.25 =C2=B1 3% perf-profile.childr= en.cycles-pp.idr_get_next_ul 0.21 =C2=B1 2% +0.1 0.34 =C2=B1 4% perf-profile.childr= en.cycles-pp.sysvipc_proc_next 0.92 +0.1 1.05 perf-profile.children.cycles-= pp.intel_idle 0.61 +0.2 0.78 perf-profile.children.cycles-= pp.rwsem_wake 0.56 +0.2 0.72 perf-profile.children.cycles-= pp.up_write 1.49 +0.2 1.71 perf-profile.children.cycles-= pp.cpuidle_enter_state 1.50 +0.2 1.72 perf-profile.children.cycles-= pp.cpuidle_enter 1.36 +0.3 1.62 perf-profile.children.cycles-= pp._copy_to_user 2.27 +0.3 2.54 perf-profile.children.cycles-= pp.cpuidle_idle_call 3.85 +0.3 4.18 perf-profile.children.cycles-= pp.do_idle 3.85 +0.3 4.19 perf-profile.children.cycles-= pp.common_startup_64 3.85 +0.3 4.19 perf-profile.children.cycles-= pp.cpu_startup_entry 3.59 +0.3 3.94 perf-profile.children.cycles-= pp.start_secondary 0.30 =C2=B1 2% +0.4 0.69 =C2=B1 4% perf-profile.childr= en.cycles-pp.sysvipc_proc_start 2.97 +0.4 3.38 =C2=B1 2% perf-profile.children.cy= cles-pp.store_msg 3.39 +0.4 3.83 =C2=B1 2% perf-profile.children.cy= cles-pp.do_msg_fill 0.81 +0.5 1.35 =C2=B1 3% perf-profile.children.cy= cles-pp.seq_read_iter 0.80 +0.5 1.34 =C2=B1 3% perf-profile.children.cy= cles-pp.seq_read 0.82 +0.5 1.37 =C2=B1 2% perf-profile.children.cy= cles-pp.ksys_read 0.82 +0.5 1.36 =C2=B1 3% perf-profile.children.cy= cles-pp.vfs_read 0.85 +0.6 1.40 =C2=B1 2% perf-profile.children.cy= cles-pp.read 0.41 =C2=B1 6% +0.8 1.19 =C2=B1 2% perf-profile.childr= en.cycles-pp.osq_lock 0.70 =C2=B1 4% +0.9 1.57 perf-profile.children.cy= cles-pp.rwsem_optimistic_spin 1.56 =C2=B1 2% +1.4 2.94 perf-profile.children.cy= cles-pp.rwsem_down_write_slowpath 1.63 =C2=B1 2% +1.4 3.03 perf-profile.children.cy= cles-pp.down_write 2.30 =C2=B1 2% +1.6 3.89 perf-profile.children.cy= cles-pp.msgctl_down 2.93 =C2=B1 2% +2.1 5.00 perf-profile.children.cy= cles-pp.rwsem_down_read_slowpath 3.06 =C2=B1 2% +2.1 5.19 perf-profile.children.cy= cles-pp.down_read 2.13 =C2=B1 3% +2.6 4.74 perf-profile.children.cy= cles-pp._raw_spin_lock_irq 21.15 +2.9 24.08 perf-profile.children.cycles-= pp.do_msgsnd 25.40 +3.0 28.43 perf-profile.children.cycles-= pp.do_msgrcv 23.62 +3.1 26.71 perf-profile.children.cycles-= pp.__libc_msgsnd 27.24 +3.2 30.40 perf-profile.children.cycles-= pp.__libc_msgrcv 16.41 =C2=B1 2% +7.0 23.42 perf-profile.children.cy= cles-pp.idr_find 19.91 +7.2 27.10 perf-profile.children.cycles-= pp.ipc_obtain_object_check 41.36 -8.8 32.54 perf-profile.self.cycles-pp.n= ative_queued_spin_lock_slowpath 5.70 -1.2 4.46 perf-profile.self.cycles-pp.p= ercpu_counter_add_batch 0.93 -0.2 0.72 =C2=B1 2% perf-profile.self.cycles= -pp.update_sg_lb_stats 0.32 -0.0 0.29 perf-profile.self.cycles-pp.i= dle_cpu 0.08 =C2=B1 5% -0.0 0.06 perf-profile.self.cycles= -pp.find_busiest_queue 0.13 =C2=B1 3% -0.0 0.12 =C2=B1 4% perf-profile.self.c= ycles-pp.ss_wakeup 0.09 +0.0 0.10 perf-profile.self.cycles-pp.p= repare_task_switch 0.06 +0.0 0.07 perf-profile.self.cycles-pp.s= witch_mm_irqs_off 0.06 =C2=B1 6% +0.0 0.07 perf-profile.self.cycles= -pp.cpuidle_enter_state 0.10 =C2=B1 4% +0.0 0.12 =C2=B1 3% perf-profile.self.c= ycles-pp.menu_select 0.28 +0.0 0.30 =C2=B1 2% perf-profile.self.cycles= -pp.ipcperms 0.05 +0.0 0.07 =C2=B1 5% perf-profile.self.cycles= -pp.osq_unlock 0.07 =C2=B1 5% +0.0 0.09 perf-profile.self.cycles= -pp.rwsem_optimistic_spin 0.10 =C2=B1 5% +0.0 0.12 =C2=B1 6% perf-profile.self.c= ycles-pp.kick_ilb 0.38 +0.0 0.40 perf-profile.self.cycles-pp._= _get_user_8 0.36 +0.0 0.38 perf-profile.self.cycles-pp.e= ntry_SYSCALL_64_after_hwframe 0.46 +0.0 0.49 perf-profile.self.cycles-pp._= _libc_msgsnd 0.38 +0.0 0.41 perf-profile.self.cycles-pp._= _put_user_8 0.12 =C2=B1 3% +0.0 0.15 =C2=B1 3% perf-profile.self.c= ycles-pp.therm_throt_process 0.07 =C2=B1 7% +0.0 0.10 =C2=B1 4% perf-profile.self.c= ycles-pp.down_write 0.47 +0.0 0.50 perf-profile.self.cycles-pp._= _libc_msgrcv 0.13 =C2=B1 3% +0.0 0.17 =C2=B1 4% perf-profile.self.c= ycles-pp.intel_thermal_interrupt 0.35 =C2=B1 2% +0.0 0.38 perf-profile.self.cycles= -pp._raw_spin_lock_irqsave 0.31 =C2=B1 3% +0.0 0.35 =C2=B1 7% perf-profile.self.c= ycles-pp.nohz_balance_exit_idle 0.67 +0.0 0.71 perf-profile.self.cycles-pp.e= ntry_SYSCALL_64 0.08 =C2=B1 5% +0.0 0.13 =C2=B1 2% perf-profile.self.c= ycles-pp.rwsem_down_write_slowpath 0.23 =C2=B1 3% +0.0 0.28 =C2=B1 4% perf-profile.self.c= ycles-pp.__check_object_size 0.71 +0.1 0.76 perf-profile.self.cycles-pp._= copy_from_user 0.46 +0.1 0.51 perf-profile.self.cycles-pp._= _radix_tree_lookup 0.13 =C2=B1 5% +0.1 0.19 perf-profile.self.cycles= -pp.down_read 0.20 =C2=B1 2% +0.1 0.26 perf-profile.self.cycles= -pp.task_mm_cid_work 1.27 =C2=B1 2% +0.1 1.34 =C2=B1 3% perf-profile.self.c= ycles-pp.stress_msg_receiver 1.45 +0.1 1.51 perf-profile.self.cycles-pp._= raw_spin_lock 0.16 =C2=B1 2% +0.1 0.22 =C2=B1 2% perf-profile.self.c= ycles-pp.rwsem_spin_on_owner 0.15 =C2=B1 3% +0.1 0.22 =C2=B1 2% perf-profile.self.c= ycles-pp._raw_spin_lock_irq 0.14 =C2=B1 2% +0.1 0.21 perf-profile.self.cycles= -pp.up_read 0.27 =C2=B1 2% +0.1 0.34 perf-profile.self.cycles= -pp.rwsem_down_read_slowpath 1.11 +0.1 1.19 perf-profile.self.cycles-pp.e= ntry_SYSRETQ_unsafe_stack 0.38 +0.1 0.49 =C2=B1 4% perf-profile.self.cycles= -pp.store_msg 1.05 +0.1 1.17 =C2=B1 2% perf-profile.self.cycles= -pp.do_msgsnd 0.11 =C2=B1 3% +0.1 0.23 =C2=B1 4% perf-profile.self.c= ycles-pp.idr_get_next_ul 1.65 +0.1 1.78 =C2=B1 2% perf-profile.self.cycles= -pp.do_msgrcv 3.05 +0.1 3.18 =C2=B1 2% perf-profile.self.cycles= -pp.ipc_obtain_object_check 0.92 +0.1 1.05 perf-profile.self.cycles-pp.i= ntel_idle 1.34 +0.3 1.59 perf-profile.self.cycles-pp._= copy_to_user 0.40 =C2=B1 6% +0.8 1.17 =C2=B1 2% perf-profile.self.c= ycles-pp.osq_lock 16.08 =C2=B1 2% +6.9 22.94 perf-profile.self.cycles= -pp.idr_find Disclaimer: Results have been estimated based on internal Intel analysis and are provid= ed for informational purposes only. Any difference in system hardware or softw= are design or configuration may affect actual performance. --=20 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki