Greeting, FYI, we noticed a 176.5% improvement of stress-ng.clone.ops due to commit: commit: f4ae02e01ddec20c34c870906ef43088c673fb0b ("netfilter: core: free hooks with call_rcu") https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master in testcase: stress-ng on test machine: 88 threads Intel(R) Xeon(R) CPU E5-2699 v4 @ 2.20GHz with 128G memory with following parameters: testtime: 1s class: scheduler cpufreq_governor: performance Details are as below: --------------------------------------------------------------------------------------------------> To reproduce: git clone https://github.com/intel/lkp-tests.git cd lkp-tests bin/lkp install job.yaml # job file is attached in this email bin/lkp run job.yaml ========================================================================================= class/compiler/cpufreq_governor/kconfig/rootfs/tbox_group/testcase/testtime: scheduler/gcc-7/performance/x86_64-rhel-7.2/debian-x86_64-2016-08-31.cgz/lkp-bdw-ep6/stress-ng/1s commit: a57de64fc8 ("netfilter: core: remove synchronize_net call if nfqueue is used") f4ae02e01d ("netfilter: core: free hooks with call_rcu") a57de64fc8dff797 f4ae02e01ddec20c34c870906e ---------------- -------------------------- %stddev %change %stddev \ | \ 561.25 ± 6% +176.5% 1552 ± 5% stress-ng.clone.ops 10.78 +5486.1% 602.04 ± 9% stress-ng.clone.ops_per_sec 57828069 ± 2% +3.9% 60111279 stress-ng.mq.ops 57745148 ± 2% +3.9% 60010983 stress-ng.mq.ops_per_sec 106.83 ± 3% -68.4% 33.76 stress-ng.time.elapsed_time 106.83 ± 3% -68.4% 33.76 stress-ng.time.elapsed_time.max 1622 ± 4% +223.2% 5244 stress-ng.time.percent_of_cpu_this_job_got 3.416e+08 ± 17% +19.3% 4.074e+08 ± 4% stress-ng.yield.ops 3.399e+08 ± 17% +19.2% 4.051e+08 ± 3% stress-ng.yield.ops_per_sec 3332 ± 5% -6.2% 3127 ± 2% boot-time.idle 365351 ± 2% -11.0% 324982 ± 4% softirqs.RCU 7.066e+09 ± 4% -74.0% 1.834e+09 ± 53% cpuidle.C6.time 7338620 ± 4% -73.5% 1948124 ± 52% cpuidle.C6.usage 1.542e+08 ± 7% -78.8% 32708972 ± 80% cpuidle.POLL.time 79.59 -29.9 49.68 ± 24% mpstat.cpu.idle% 18.74 ± 4% +27.5 46.26 ± 24% mpstat.cpu.sys% 1.57 ± 2% +2.3 3.84 ± 23% mpstat.cpu.usr% 2077901 ± 4% +51.6% 3150137 ± 13% vmstat.memory.cache 208.50 ± 29% +98.6% 414.00 ± 23% vmstat.procs.r 748042 ± 20% +132.6% 1740231 ± 29% vmstat.system.cs 127043 ± 3% +35.3% 171843 ± 11% vmstat.system.in 0.18 ± 7% -23.0% 0.14 ± 10% sched_debug.cfs_rq:/.nr_running.avg 7358 ± 78% -82.6% 1281 ±139% sched_debug.cfs_rq:/.spread0.max 277.32 ± 9% -16.7% 230.90 ± 6% sched_debug.cpu.curr->pid.avg 14480 ± 54% -64.6% 5126 ±103% sched_debug.cpu.load.avg 0.19 ± 6% -24.2% 0.14 ± 11% sched_debug.cpu.nr_running.avg 484265 ± 10% +90.6% 922939 ± 21% meminfo.Active 442448 ± 11% +99.2% 881214 ± 22% meminfo.Active(anon) 1823273 ± 3% +56.5% 2854129 ± 9% meminfo.Cached 1543190 +41.8% 2188588 ± 8% meminfo.Inactive 442716 ± 6% +145.7% 1087777 ± 17% meminfo.Inactive(anon) 457477 ± 6% +140.9% 1101943 ± 17% meminfo.Mapped 680743 ± 9% +151.4% 1711577 ± 15% meminfo.Shmem 114524 ± 7% +92.0% 219930 ± 20% proc-vmstat.nr_active_anon 463278 ± 5% +53.8% 712508 ± 6% proc-vmstat.nr_file_pages 114015 ± 10% +136.6% 269807 ± 11% proc-vmstat.nr_inactive_anon 26369 ± 6% +47.7% 38957 ± 20% proc-vmstat.nr_kernel_stack 117871 ± 10% +132.0% 273476 ± 11% proc-vmstat.nr_mapped 177645 ± 13% +140.3% 426871 ± 11% proc-vmstat.nr_shmem 114524 ± 7% +92.0% 219931 ± 20% proc-vmstat.nr_zone_active_anon 114015 ± 10% +136.6% 269807 ± 11% proc-vmstat.nr_zone_inactive_anon 37335 ± 2% +39.5% 52097 ± 19% proc-vmstat.numa_other 0.41 -0.1 0.32 ± 6% perf-stat.branch-miss-rate% 2.069e+09 ± 2% -24.0% 1.573e+09 ± 8% perf-stat.branch-misses 8.00 ± 5% +0.7 8.70 ± 4% perf-stat.cache-miss-rate% 2.936e+10 ± 5% -6.9% 2.733e+10 ± 4% perf-stat.cache-references 2.69 ± 2% -7.0% 2.50 perf-stat.cpi 6.527e+12 ± 2% -9.9% 5.883e+12 ± 3% perf-stat.cpu-cycles 0.10 ± 6% -0.0 0.08 ± 11% perf-stat.dTLB-load-miss-rate% 6.847e+08 ± 6% -22.7% 5.291e+08 ± 13% perf-stat.dTLB-load-misses 0.06 ± 10% -0.0 0.04 ± 6% perf-stat.dTLB-store-miss-rate% 1.834e+08 ± 8% -34.8% 1.196e+08 ± 7% perf-stat.dTLB-store-misses 2.401e+08 ± 13% -33.1% 1.606e+08 ± 21% perf-stat.iTLB-load-misses 10313 ± 14% +48.6% 15329 ± 20% perf-stat.instructions-per-iTLB-miss 0.37 ± 2% +7.5% 0.40 perf-stat.ipc 671.50 ± 3% +122.4% 1493 ± 22% turbostat.Avg_MHz 24.77 ± 3% +28.8 53.59 ± 22% turbostat.Busy% 0.90 ± 15% +1.5 2.41 ± 25% turbostat.C1% 1.06 ± 10% +1.4 2.43 ± 25% turbostat.C1E% 0.62 +0.7 1.36 ± 18% turbostat.C3% 7415034 ± 4% -73.5% 1961926 ± 52% turbostat.C6 72.77 -32.2 40.55 ± 33% turbostat.C6% 22.48 -18.5% 18.32 ± 10% turbostat.CPU%c1 0.21 ± 5% +141.9% 0.52 ± 22% turbostat.CPU%c3 52.52 -47.5% 27.57 ± 36% turbostat.CPU%c6 14815026 ± 3% -39.2% 9014213 ± 11% turbostat.IRQ 17.17 ± 6% -57.7% 7.27 ± 36% turbostat.Pkg%pc2 0.07 ± 41% +330.8% 0.28 ± 81% turbostat.Pkg%pc3 6.51 ± 15% -63.7% 2.36 ± 67% turbostat.Pkg%pc6 126.42 +43.5% 181.45 ± 11% turbostat.PkgWatt 11.04 ± 3% +38.4% 15.28 ± 11% turbostat.RAMWatt 229842 ± 12% +96.2% 450950 ± 15% numa-meminfo.node0.Active 208989 ± 13% +105.6% 429750 ± 15% numa-meminfo.node0.Active(anon) 902041 ± 7% +56.3% 1409628 ± 6% numa-meminfo.node0.FilePages 761954 ± 4% +41.3% 1076636 ± 4% numa-meminfo.node0.Inactive 220571 ± 14% +142.8% 535489 ± 9% numa-meminfo.node0.Inactive(anon) 13328 ± 9% +47.5% 19653 ± 25% numa-meminfo.node0.KernelStack 228784 ± 14% +137.2% 542667 ± 9% numa-meminfo.node0.Mapped 1480294 ± 5% +36.5% 2020295 ± 5% numa-meminfo.node0.MemUsed 65366 ± 10% +22.8% 80249 ± 9% numa-meminfo.node0.SReclaimable 339691 ± 19% +149.4% 847265 ± 11% numa-meminfo.node0.Shmem 257613 ± 22% +95.3% 503100 ± 29% numa-meminfo.node1.Active 236640 ± 23% +103.9% 482551 ± 31% numa-meminfo.node1.Active(anon) 923661 ± 8% +58.4% 1463261 ± 13% numa-meminfo.node1.FilePages 782761 ± 4% +40.2% 1097302 ± 12% numa-meminfo.node1.Inactive 223676 ± 11% +140.4% 537661 ± 23% numa-meminfo.node1.Inactive(anon) 230365 ± 10% +136.5% 544700 ± 23% numa-meminfo.node1.Mapped 1556182 ± 6% +35.0% 2100580 ± 15% numa-meminfo.node1.MemUsed 343481 ± 18% +157.1% 883055 ± 22% numa-meminfo.node1.Shmem 52870 ± 20% +97.8% 104563 ± 8% numa-vmstat.node0.nr_active_anon 222702 ± 4% +57.3% 350316 ± 8% numa-vmstat.node0.nr_file_pages 52568 ± 11% +153.9% 133452 ± 17% numa-vmstat.node0.nr_inactive_anon 54627 ± 11% +147.8% 135346 ± 17% numa-vmstat.node0.nr_mapped 82114 ± 10% +155.4% 209728 ± 14% numa-vmstat.node0.nr_shmem 16250 ± 12% +23.9% 20135 ± 9% numa-vmstat.node0.nr_slab_reclaimable 52871 ± 20% +97.8% 104564 ± 8% numa-vmstat.node0.nr_zone_active_anon 52564 ± 11% +153.9% 133445 ± 17% numa-vmstat.node0.nr_zone_inactive_anon 3417475 ± 13% +254.7% 12123438 ± 22% numa-vmstat.node0.numa_hit 3401367 ± 13% +255.8% 12101131 ± 22% numa-vmstat.node0.numa_local 225958 ± 7% +55.0% 350178 ± 18% numa-vmstat.node1.nr_file_pages 54867 ± 9% +136.4% 129713 ± 27% numa-vmstat.node1.nr_inactive_anon 12846 ± 12% +64.3% 21102 ± 26% numa-vmstat.node1.nr_kernel_stack 56674 ± 8% +132.1% 131514 ± 27% numa-vmstat.node1.nr_mapped 80913 ± 16% +153.5% 205129 ± 30% numa-vmstat.node1.nr_shmem 54867 ± 9% +136.4% 129717 ± 27% numa-vmstat.node1.nr_zone_inactive_anon 3526202 ± 12% +239.8% 11980772 ± 19% numa-vmstat.node1.numa_hit 3351142 ± 13% +252.0% 11795741 ± 19% numa-vmstat.node1.numa_local 211698 ± 7% +29.6% 274283 ± 11% slabinfo.Acpi-Namespace.active_objs 2238 ± 7% +22.7% 2746 ± 11% slabinfo.Acpi-Namespace.active_slabs 228389 ± 7% +22.7% 280151 ± 11% slabinfo.Acpi-Namespace.num_objs 2238 ± 7% +22.7% 2746 ± 11% slabinfo.Acpi-Namespace.num_slabs 5293 ± 48% +159.2% 13720 ± 26% slabinfo.Acpi-State.active_objs 104.50 ± 47% +159.8% 271.50 ± 26% slabinfo.Acpi-State.active_slabs 5354 ± 47% +159.3% 13884 ± 26% slabinfo.Acpi-State.num_objs 104.50 ± 47% +159.8% 271.50 ± 26% slabinfo.Acpi-State.num_slabs 57565 ± 10% -78.8% 12219 ± 17% slabinfo.RAW.active_objs 1695 ± 10% -78.3% 367.50 ± 16% slabinfo.RAW.active_slabs 57674 ± 10% -78.3% 12514 ± 16% slabinfo.RAW.num_objs 1695 ± 10% -78.3% 367.50 ± 16% slabinfo.RAW.num_slabs 14484 ± 6% -60.6% 5709 ± 11% slabinfo.RAWv6.active_objs 527.00 ± 6% -59.9% 211.50 ± 11% slabinfo.RAWv6.active_slabs 14770 ± 6% -59.8% 5935 ± 11% slabinfo.RAWv6.num_objs 527.00 ± 6% -59.9% 211.50 ± 11% slabinfo.RAWv6.num_slabs 38076 ± 2% +47.2% 56041 ± 4% slabinfo.anon_vma.active_objs 829.00 ± 2% +47.4% 1222 ± 4% slabinfo.anon_vma.active_slabs 38155 ± 2% +47.4% 56230 ± 4% slabinfo.anon_vma.num_objs 829.00 ± 2% +47.4% 1222 ± 4% slabinfo.anon_vma.num_slabs 87058 +11.5% 97103 ± 4% slabinfo.anon_vma_chain.active_objs 1390 ± 2% +13.4% 1576 ± 5% slabinfo.anon_vma_chain.active_slabs 89012 ± 2% +13.4% 100920 ± 5% slabinfo.anon_vma_chain.num_objs 1390 ± 2% +13.4% 1576 ± 5% slabinfo.anon_vma_chain.num_slabs 16688 ± 12% +106.5% 34454 ± 29% slabinfo.cred_jar.active_objs 403.25 ± 11% +109.9% 846.50 ± 27% slabinfo.cred_jar.active_slabs 16959 ± 11% +109.8% 35573 ± 27% slabinfo.cred_jar.num_objs 403.25 ± 11% +109.9% 846.50 ± 27% slabinfo.cred_jar.num_slabs 104937 ± 11% +49.9% 157259 ± 18% slabinfo.dentry.active_objs 2542 ± 11% +53.8% 3908 ± 17% slabinfo.dentry.active_slabs 106777 ± 11% +53.8% 164182 ± 17% slabinfo.dentry.num_objs 2542 ± 11% +53.8% 3908 ± 17% slabinfo.dentry.num_slabs 4661 +25.6% 5857 ± 6% slabinfo.files_cache.active_objs 4661 +25.6% 5857 ± 6% slabinfo.files_cache.num_objs 7587 ± 31% +78.7% 13557 ± 4% slabinfo.fsnotify_mark_connector.active_objs 7587 ± 31% +78.7% 13557 ± 4% slabinfo.fsnotify_mark_connector.num_objs 77663 ± 14% +60.3% 124484 ± 23% slabinfo.inode_cache.active_objs 1480 ± 14% +62.0% 2398 ± 22% slabinfo.inode_cache.active_slabs 78485 ± 14% +62.0% 127146 ± 22% slabinfo.inode_cache.num_objs 1480 ± 14% +62.0% 2398 ± 22% slabinfo.inode_cache.num_slabs 7088 ± 4% +19.1% 8442 ± 5% slabinfo.kmalloc-1024.active_objs 8011 ± 5% +18.2% 9466 ± 3% slabinfo.kmalloc-1024.num_objs 31361 ± 6% -51.6% 15193 ± 7% slabinfo.kmalloc-192.active_objs 913.00 ± 7% -49.4% 462.25 ± 5% slabinfo.kmalloc-192.active_slabs 38367 ± 7% -49.3% 19438 ± 5% slabinfo.kmalloc-192.num_objs 913.00 ± 7% -49.4% 462.25 ± 5% slabinfo.kmalloc-192.num_slabs 10832 ± 4% -17.8% 8899 ± 3% slabinfo.kmalloc-2048.active_objs 765.75 ± 5% -23.0% 589.25 ± 3% slabinfo.kmalloc-2048.active_slabs 12258 ± 5% -23.0% 9435 ± 3% slabinfo.kmalloc-2048.num_objs 765.75 ± 5% -23.0% 589.25 ± 3% slabinfo.kmalloc-2048.num_slabs 127099 ± 4% -17.2% 105269 ± 9% slabinfo.kmalloc-32.active_objs 1124 ± 5% -23.0% 865.25 ± 7% slabinfo.kmalloc-32.active_slabs 143962 ± 5% -23.0% 110843 ± 7% slabinfo.kmalloc-32.num_objs 1124 ± 5% -23.0% 865.25 ± 7% slabinfo.kmalloc-32.num_slabs 3698 ± 6% -50.2% 1842 ± 6% slabinfo.kmalloc-4096.active_objs 611.00 ± 7% -57.2% 261.50 ± 5% slabinfo.kmalloc-4096.active_slabs 4891 ± 7% -57.1% 2096 ± 5% slabinfo.kmalloc-4096.num_objs 611.00 ± 7% -57.2% 261.50 ± 5% slabinfo.kmalloc-4096.num_slabs 216825 ± 7% -23.8% 165170 ± 13% slabinfo.kmalloc-64.active_objs 3552 ± 7% -25.8% 2636 ± 13% slabinfo.kmalloc-64.active_slabs 227382 ± 7% -25.8% 168727 ± 13% slabinfo.kmalloc-64.num_objs 3552 ± 7% -25.8% 2636 ± 13% slabinfo.kmalloc-64.num_slabs 117177 ± 10% +154.8% 298600 ± 20% slabinfo.kmalloc-8.active_objs 229.00 ± 11% +155.6% 585.25 ± 19% slabinfo.kmalloc-8.active_slabs 117661 ± 11% +154.8% 299794 ± 19% slabinfo.kmalloc-8.num_objs 229.00 ± 11% +155.6% 585.25 ± 19% slabinfo.kmalloc-8.num_slabs 961.25 ± 2% -19.7% 771.75 ± 4% slabinfo.kmalloc-8192.active_objs 1121 ± 3% -13.2% 973.25 ± 5% slabinfo.kmalloc-8192.num_objs 340.25 ± 3% +37.7% 468.50 ± 7% slabinfo.kmalloc-96.active_slabs 14315 ± 3% +37.6% 19702 ± 7% slabinfo.kmalloc-96.num_objs 340.25 ± 3% +37.7% 468.50 ± 7% slabinfo.kmalloc-96.num_slabs 2334 ± 3% +61.0% 3758 ± 6% slabinfo.mm_struct.active_objs 2343 ± 3% +62.3% 3802 ± 7% slabinfo.mm_struct.num_objs 5409 ± 5% +191.6% 15774 ± 29% slabinfo.mnt_cache.active_objs 128.50 ± 5% +191.8% 375.00 ± 29% slabinfo.mnt_cache.active_slabs 5409 ± 5% +191.6% 15774 ± 29% slabinfo.mnt_cache.num_objs 128.50 ± 5% +191.8% 375.00 ± 29% slabinfo.mnt_cache.num_slabs 672.25 ± 6% -21.8% 525.50 ± 3% slabinfo.net_namespace.active_objs 687.50 ± 5% -15.2% 583.00 ± 4% slabinfo.net_namespace.num_objs 14052 ± 7% +132.5% 32674 ± 16% slabinfo.pid.active_objs 443.75 ± 7% +134.2% 1039 ± 16% slabinfo.pid.active_slabs 14215 ± 7% +134.0% 33266 ± 16% slabinfo.pid.num_objs 443.75 ± 7% +134.2% 1039 ± 16% slabinfo.pid.num_slabs 23640 ± 3% +88.3% 44510 ± 8% slabinfo.radix_tree_node.active_objs 436.75 ± 3% +91.1% 834.75 ± 8% slabinfo.radix_tree_node.active_slabs 24498 ± 3% +90.9% 46765 ± 7% slabinfo.radix_tree_node.num_objs 436.75 ± 3% +91.1% 834.75 ± 8% slabinfo.radix_tree_node.num_slabs 5003 +13.4% 5675 ± 2% slabinfo.shmem_inode_cache.active_objs 5003 +13.4% 5675 ± 2% slabinfo.shmem_inode_cache.num_objs 4408 ± 5% +78.6% 7872 ± 8% slabinfo.sighand_cache.active_objs 298.00 ± 4% +81.8% 541.75 ± 8% slabinfo.sighand_cache.active_slabs 4480 ± 4% +81.6% 8136 ± 8% slabinfo.sighand_cache.num_objs 298.00 ± 4% +81.8% 541.75 ± 8% slabinfo.sighand_cache.num_slabs 9457 ± 15% +52.8% 14451 ± 10% slabinfo.signal_cache.active_objs 320.25 ± 15% +57.3% 503.75 ± 10% slabinfo.signal_cache.active_slabs 9626 ± 15% +57.2% 15130 ± 10% slabinfo.signal_cache.num_objs 320.25 ± 15% +57.3% 503.75 ± 10% slabinfo.signal_cache.num_slabs 73602 ± 9% -75.9% 17738 ± 15% slabinfo.sock_inode_cache.active_objs 1628 ± 9% -75.1% 404.75 ± 13% slabinfo.sock_inode_cache.active_slabs 74920 ± 9% -75.1% 18654 ± 13% slabinfo.sock_inode_cache.num_objs 1628 ± 9% -75.1% 404.75 ± 13% slabinfo.sock_inode_cache.num_slabs 1695 ± 6% +60.9% 2727 ± 7% slabinfo.task_group.active_objs 1695 ± 6% +60.9% 2727 ± 7% slabinfo.task_group.num_objs 618.50 ± 19% +247.3% 2147 ± 22% slabinfo.taskstats.active_objs 618.50 ± 19% +247.3% 2147 ± 22% slabinfo.taskstats.num_objs 906.00 ± 2% +66.3% 1506 ± 13% slabinfo.user_namespace.active_objs 906.00 ± 2% +66.3% 1506 ± 13% slabinfo.user_namespace.num_objs 60.73 ± 5% -59.3 1.40 ±140% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_fastpath 13.13 ± 28% -13.1 0.00 perf-profile.calltrace.cycles-pp.return_from_SYSCALL_64 13.13 ± 28% -13.1 0.00 perf-profile.calltrace.cycles-pp.do_syscall_64.return_from_SYSCALL_64 11.19 ± 61% -11.2 0.00 perf-profile.calltrace.cycles-pp.__account_scheduler_latency.enqueue_entity.enqueue_task_fair.activate_task.ttwu_do_activate 11.54 ± 61% -11.1 0.40 ±173% perf-profile.calltrace.cycles-pp.enqueue_entity.enqueue_task_fair.activate_task.ttwu_do_activate.try_to_wake_up 10.09 ± 64% -10.1 0.00 perf-profile.calltrace.cycles-pp._raw_spin_lock_irqsave.__account_scheduler_latency.enqueue_entity.enqueue_task_fair.activate_task 9.87 ± 66% -9.9 0.00 perf-profile.calltrace.cycles-pp.sys_sched_yield.entry_SYSCALL_64_fastpath 9.85 ± 66% -9.8 0.00 perf-profile.calltrace.cycles-pp.native_queued_spin_lock_slowpath._raw_spin_lock_irqsave.__account_scheduler_latency.enqueue_entity.enqueue_task_fair 9.58 ± 39% -9.6 0.00 perf-profile.calltrace.cycles-pp.sys_clone.do_syscall_64.return_from_SYSCALL_64 9.58 ± 39% -9.6 0.00 perf-profile.calltrace.cycles-pp._do_fork.sys_clone.do_syscall_64.return_from_SYSCALL_64 9.26 ± 39% -9.3 0.00 perf-profile.calltrace.cycles-pp.copy_process._do_fork.sys_clone.do_syscall_64.return_from_SYSCALL_64 8.43 ± 67% -8.4 0.00 perf-profile.calltrace.cycles-pp.schedule.sys_sched_yield.entry_SYSCALL_64_fastpath 8.31 ± 38% -8.3 0.00 perf-profile.calltrace.cycles-pp.sys_kill.entry_SYSCALL_64_fastpath 8.29 ± 38% -8.3 0.00 perf-profile.calltrace.cycles-pp.SYSC_kill.sys_kill.entry_SYSCALL_64_fastpath 8.21 ± 38% -8.2 0.00 perf-profile.calltrace.cycles-pp.kill_pid_info.SYSC_kill.sys_kill.entry_SYSCALL_64_fastpath 8.19 ± 38% -8.2 0.00 perf-profile.calltrace.cycles-pp.group_send_sig_info.kill_pid_info.SYSC_kill.sys_kill.entry_SYSCALL_64_fastpath 8.11 ± 67% -8.1 0.00 perf-profile.calltrace.cycles-pp.__schedule.schedule.sys_sched_yield.entry_SYSCALL_64_fastpath 8.06 ± 39% -8.1 0.00 perf-profile.calltrace.cycles-pp.do_send_sig_info.group_send_sig_info.kill_pid_info.SYSC_kill.sys_kill 7.99 ± 58% -8.0 0.00 perf-profile.calltrace.cycles-pp.do_group_exit.sys_exit_group.entry_SYSCALL_64_fastpath 7.99 ± 58% -8.0 0.00 perf-profile.calltrace.cycles-pp.sys_exit_group.entry_SYSCALL_64_fastpath 7.98 ± 58% -8.0 0.00 perf-profile.calltrace.cycles-pp.do_exit.do_group_exit.sys_exit_group.entry_SYSCALL_64_fastpath 7.60 ± 39% -7.6 0.00 perf-profile.calltrace.cycles-pp.send_signal.do_send_sig_info.group_send_sig_info.kill_pid_info.SYSC_kill 7.57 ± 39% -7.6 0.00 perf-profile.calltrace.cycles-pp.__send_signal.send_signal.do_send_sig_info.group_send_sig_info.kill_pid_info 7.37 ± 39% -7.4 0.00 perf-profile.calltrace.cycles-pp.sys_wait4.entry_SYSCALL_64_fastpath 7.37 ± 39% -7.4 0.00 perf-profile.calltrace.cycles-pp.SYSC_wait4.sys_wait4.entry_SYSCALL_64_fastpath 7.37 ± 39% -7.4 0.00 perf-profile.calltrace.cycles-pp.kernel_wait4.SYSC_wait4.sys_wait4.entry_SYSCALL_64_fastpath 7.35 ± 39% -7.3 0.00 perf-profile.calltrace.cycles-pp.do_wait.kernel_wait4.SYSC_wait4.sys_wait4.entry_SYSCALL_64_fastpath 7.22 ± 59% -6.8 0.40 ±173% perf-profile.calltrace.cycles-pp.enqueue_task_fair.activate_task.ttwu_do_activate.try_to_wake_up.default_wake_function 6.58 ±100% -6.0 0.61 ±109% perf-profile.calltrace.cycles-pp.try_to_wake_up.default_wake_function.autoremove_wake_function.__wake_up_common.__wake_up_common_lock 5.29 ± 32% -5.3 0.00 perf-profile.calltrace.cycles-pp.syscall_return_slowpath.entry_SYSCALL_64_fastpath 5.29 ± 32% -5.3 0.00 perf-profile.calltrace.cycles-pp.exit_to_usermode_loop.syscall_return_slowpath.entry_SYSCALL_64_fastpath 4.93 ± 32% -4.9 0.00 perf-profile.calltrace.cycles-pp.do_signal.exit_to_usermode_loop.syscall_return_slowpath.entry_SYSCALL_64_fastpath 4.93 ± 32% -4.9 0.00 perf-profile.calltrace.cycles-pp.get_signal.do_signal.exit_to_usermode_loop.syscall_return_slowpath.entry_SYSCALL_64_fastpath 4.56 ± 83% -4.6 0.00 perf-profile.calltrace.cycles-pp.mmput.do_exit.do_group_exit.sys_exit_group.entry_SYSCALL_64_fastpath 4.55 ± 83% -4.6 0.00 perf-profile.calltrace.cycles-pp.exit_mmap.mmput.do_exit.do_group_exit.sys_exit_group 4.88 ±101% -4.5 0.40 ±173% perf-profile.calltrace.cycles-pp.ttwu_do_activate.try_to_wake_up.default_wake_function.autoremove_wake_function.__wake_up_common 4.85 ±101% -4.4 0.40 ±173% perf-profile.calltrace.cycles-pp.activate_task.ttwu_do_activate.try_to_wake_up.default_wake_function.autoremove_wake_function 4.78 ±100% -4.2 0.61 ±109% perf-profile.calltrace.cycles-pp.default_wake_function.autoremove_wake_function.__wake_up_common.__wake_up_common_lock.__wake_up_sync_key 4.10 ± 71% -4.1 0.00 perf-profile.calltrace.cycles-pp.pick_next_task_fair.__schedule.schedule.sys_sched_yield.entry_SYSCALL_64_fastpath 3.90 ±100% -3.9 0.00 perf-profile.calltrace.cycles-pp.sys_write.entry_SYSCALL_64_fastpath 3.88 ±100% -3.9 0.00 perf-profile.calltrace.cycles-pp.vfs_write.sys_write.entry_SYSCALL_64_fastpath 3.79 ±100% -3.8 0.00 perf-profile.calltrace.cycles-pp.__vfs_write.vfs_write.sys_write.entry_SYSCALL_64_fastpath 3.37 ±100% -3.4 0.00 perf-profile.calltrace.cycles-pp.hrtimer_wakeup.__hrtimer_run_queues.hrtimer_interrupt.smp_apic_timer_interrupt.__irqentry_text_start 3.37 ±100% -3.4 0.00 perf-profile.calltrace.cycles-pp.wake_up_process.hrtimer_wakeup.__hrtimer_run_queues.hrtimer_interrupt.smp_apic_timer_interrupt 3.36 ±100% -3.4 0.00 perf-profile.calltrace.cycles-pp.try_to_wake_up.wake_up_process.hrtimer_wakeup.__hrtimer_run_queues.hrtimer_interrupt 3.10 ±100% -3.1 0.00 perf-profile.calltrace.cycles-pp.ttwu_do_activate.try_to_wake_up.wake_up_process.hrtimer_wakeup.__hrtimer_run_queues 3.10 ±100% -3.1 0.00 perf-profile.calltrace.cycles-pp.activate_task.ttwu_do_activate.try_to_wake_up.wake_up_process.hrtimer_wakeup 3.09 ±100% -3.1 0.00 perf-profile.calltrace.cycles-pp.enqueue_task_fair.activate_task.ttwu_do_activate.try_to_wake_up.wake_up_process 3.76 ±100% -2.9 0.82 ±100% perf-profile.calltrace.cycles-pp.pipe_write.__vfs_write.vfs_write.sys_write.entry_SYSCALL_64_fastpath 2.92 ±100% -2.3 0.61 ±109% perf-profile.calltrace.cycles-pp.pipe_read.__vfs_read.vfs_read.sys_read.entry_SYSCALL_64_fastpath 2.86 ±100% -2.3 0.61 ±109% perf-profile.calltrace.cycles-pp.__wake_up_sync_key.pipe_write.__vfs_write.vfs_write.sys_write 2.86 ±100% -2.3 0.61 ±109% perf-profile.calltrace.cycles-pp.__wake_up_common_lock.__wake_up_sync_key.pipe_write.__vfs_write.vfs_write 2.83 ±100% -2.2 0.61 ±109% perf-profile.calltrace.cycles-pp.__wake_up_common.__wake_up_common_lock.__wake_up_sync_key.pipe_write.__vfs_write 2.81 ±100% -2.2 0.61 ±109% perf-profile.calltrace.cycles-pp.autoremove_wake_function.__wake_up_common.__wake_up_common_lock.__wake_up_sync_key.pipe_write 3.03 ±100% -1.8 1.19 ±173% perf-profile.calltrace.cycles-pp.sys_read.entry_SYSCALL_64_fastpath 3.01 ±100% -1.8 1.19 ±173% perf-profile.calltrace.cycles-pp.vfs_read.sys_read.entry_SYSCALL_64_fastpath 2.94 ±100% -1.8 1.19 ±173% perf-profile.calltrace.cycles-pp.__vfs_read.vfs_read.sys_read.entry_SYSCALL_64_fastpath 0.90 ± 35% +3.2 4.07 ± 73% perf-profile.calltrace.cycles-pp.smp_apic_timer_interrupt.__irqentry_text_start.cpuidle_enter_state.cpuidle_enter.call_cpuidle 0.90 ± 35% +3.2 4.10 ± 74% perf-profile.calltrace.cycles-pp.__irqentry_text_start.cpuidle_enter_state.cpuidle_enter.call_cpuidle.do_idle 0.00 +3.8 3.85 ±105% perf-profile.calltrace.cycles-pp.event_function_call._perf_event_disable.perf_event_for_each_child.perf_ioctl.do_vfs_ioctl 0.00 +3.8 3.85 ±105% perf-profile.calltrace.cycles-pp.smp_call_function_single.event_function_call._perf_event_disable.perf_event_for_each_child.perf_ioctl 0.00 +3.8 3.85 ±105% perf-profile.calltrace.cycles-pp._perf_event_disable.perf_event_for_each_child.perf_ioctl.do_vfs_ioctl.sys_ioctl 0.00 +8.4 8.42 ± 83% perf-profile.calltrace.cycles-pp.delay_tsc.__const_udelay.wait_for_xmitr.serial8250_console_putchar.uart_console_write 0.00 +8.4 8.42 ± 83% perf-profile.calltrace.cycles-pp.__const_udelay.wait_for_xmitr.serial8250_console_putchar.uart_console_write.serial8250_console_write 0.17 ±173% +10.7 10.91 ± 81% perf-profile.calltrace.cycles-pp.io_serial_in.wait_for_xmitr.serial8250_console_putchar.uart_console_write.serial8250_console_write 0.00 +16.6 16.61 ± 37% perf-profile.calltrace.cycles-pp.event_function_call._perf_event_enable.perf_event_for_each_child.perf_ioctl.do_vfs_ioctl 0.00 +16.6 16.61 ± 37% perf-profile.calltrace.cycles-pp.smp_call_function_single.event_function_call._perf_event_enable.perf_event_for_each_child.perf_ioctl 0.00 +16.6 16.61 ± 37% perf-profile.calltrace.cycles-pp._perf_event_enable.perf_event_for_each_child.perf_ioctl.do_vfs_ioctl.sys_ioctl 0.00 +17.8 17.84 ±102% perf-profile.calltrace.cycles-pp.uart_console_write.serial8250_console_write.univ8250_console_write.console_unlock.vprintk_emit 0.00 +18.2 18.23 ±101% perf-profile.calltrace.cycles-pp.univ8250_console_write.console_unlock.vprintk_emit.printk_emit.devkmsg_write 0.00 +18.2 18.23 ±101% perf-profile.calltrace.cycles-pp.serial8250_console_write.univ8250_console_write.console_unlock.vprintk_emit.printk_emit 0.00 +19.0 19.05 ±101% perf-profile.calltrace.cycles-pp.devkmsg_write.__vfs_write.vfs_write.sys_write.entry_SYSCALL_64_fastpath 0.00 +19.0 19.05 ±101% perf-profile.calltrace.cycles-pp.printk_emit.devkmsg_write.__vfs_write.vfs_write.sys_write 0.00 +19.0 19.05 ±101% perf-profile.calltrace.cycles-pp.vprintk_emit.printk_emit.devkmsg_write.__vfs_write.vfs_write 0.00 +19.0 19.05 ±101% perf-profile.calltrace.cycles-pp.console_unlock.vprintk_emit.printk_emit.devkmsg_write.__vfs_write 0.25 ±173% +19.5 19.73 ± 81% perf-profile.calltrace.cycles-pp.wait_for_xmitr.serial8250_console_putchar.uart_console_write.serial8250_console_write.univ8250_console_write 0.00 +19.9 19.87 ±101% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_fastpath.write 0.00 +19.9 19.87 ±101% perf-profile.calltrace.cycles-pp.write 0.00 +19.9 19.87 ±101% perf-profile.calltrace.cycles-pp.sys_write.entry_SYSCALL_64_fastpath.write 0.00 +19.9 19.87 ±101% perf-profile.calltrace.cycles-pp.vfs_write.sys_write.entry_SYSCALL_64_fastpath.write 0.00 +19.9 19.87 ±101% perf-profile.calltrace.cycles-pp.__vfs_write.vfs_write.sys_write.entry_SYSCALL_64_fastpath.write 0.26 ±173% +19.9 20.13 ± 81% perf-profile.calltrace.cycles-pp.serial8250_console_putchar.uart_console_write.serial8250_console_write.univ8250_console_write.console_unlock 0.00 +20.5 20.48 ± 13% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_fastpath.ioctl.__libc_start_main 0.00 +20.5 20.48 ± 13% perf-profile.calltrace.cycles-pp.ioctl.__libc_start_main 0.00 +20.5 20.48 ± 13% perf-profile.calltrace.cycles-pp.sys_ioctl.entry_SYSCALL_64_fastpath.ioctl.__libc_start_main 0.00 +20.5 20.48 ± 13% perf-profile.calltrace.cycles-pp.do_vfs_ioctl.sys_ioctl.entry_SYSCALL_64_fastpath.ioctl.__libc_start_main 0.00 +20.5 20.48 ± 13% perf-profile.calltrace.cycles-pp.perf_ioctl.do_vfs_ioctl.sys_ioctl.entry_SYSCALL_64_fastpath.ioctl 0.00 +20.5 20.48 ± 13% perf-profile.calltrace.cycles-pp.perf_event_for_each_child.perf_ioctl.do_vfs_ioctl.sys_ioctl.entry_SYSCALL_64_fastpath 0.00 +23.2 23.19 ± 30% perf-profile.calltrace.cycles-pp.__libc_start_main 9.96 ± 17% +25.7 35.69 ± 42% perf-profile.calltrace.cycles-pp.intel_idle.cpuidle_enter_state.cpuidle_enter.call_cpuidle.do_idle 13.36 ± 24% +30.4 43.77 ± 41% perf-profile.calltrace.cycles-pp.do_idle.cpu_startup_entry.start_secondary.verify_cpu 13.38 ± 24% +30.5 43.87 ± 41% perf-profile.calltrace.cycles-pp.start_secondary.verify_cpu 13.38 ± 24% +30.5 43.87 ± 41% perf-profile.calltrace.cycles-pp.cpu_startup_entry.start_secondary.verify_cpu 11.21 ± 16% +31.2 42.45 ± 41% perf-profile.calltrace.cycles-pp.cpuidle_enter.call_cpuidle.do_idle.cpu_startup_entry.start_secondary 13.53 ± 24% +31.3 44.81 ± 41% perf-profile.calltrace.cycles-pp.verify_cpu 11.22 ± 16% +31.3 42.50 ± 41% perf-profile.calltrace.cycles-pp.call_cpuidle.do_idle.cpu_startup_entry.start_secondary.verify_cpu 11.19 ± 16% +31.9 43.13 ± 39% perf-profile.calltrace.cycles-pp.cpuidle_enter_state.cpuidle_enter.call_cpuidle.do_idle.cpu_startup_entry 38.21 ± 39% -38.0 0.25 ±173% perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath 17.35 ± 60% -16.7 0.66 ± 93% perf-profile.children.cycles-pp.try_to_wake_up 14.33 ± 15% -14.1 0.23 ±149% perf-profile.children.cycles-pp.__schedule 14.13 ± 63% -13.7 0.40 ±173% perf-profile.children.cycles-pp.ttwu_do_activate 14.02 ± 63% -13.6 0.40 ±173% perf-profile.children.cycles-pp.activate_task 13.98 ± 63% -13.6 0.40 ±173% perf-profile.children.cycles-pp.enqueue_task_fair 13.70 ± 64% -13.3 0.40 ±173% perf-profile.children.cycles-pp.enqueue_entity 13.20 ± 65% -13.2 0.00 perf-profile.children.cycles-pp.__account_scheduler_latency 13.16 ± 28% -13.1 0.08 ±111% perf-profile.children.cycles-pp.return_from_SYSCALL_64 13.15 ± 28% -13.1 0.08 ±111% perf-profile.children.cycles-pp.do_syscall_64 13.05 ± 29% -13.1 0.00 perf-profile.children.cycles-pp._do_fork 13.11 ± 25% -13.0 0.13 ±132% perf-profile.children.cycles-pp.schedule 12.80 ± 65% -12.8 0.00 perf-profile.children.cycles-pp._raw_spin_lock_irqsave 12.28 ± 30% -12.3 0.00 perf-profile.children.cycles-pp.copy_process 12.59 ± 80% -12.1 0.48 ±148% perf-profile.children.cycles-pp._raw_spin_lock 12.00 ± 23% -12.0 0.00 perf-profile.children.cycles-pp._raw_write_lock_irq 11.97 ± 23% -12.0 0.00 perf-profile.children.cycles-pp.queued_write_lock_slowpath 9.89 ± 66% -9.9 0.00 perf-profile.children.cycles-pp.sys_sched_yield 9.60 ± 39% -9.6 0.00 perf-profile.children.cycles-pp.sys_clone 9.73 ± 59% -9.1 0.61 ±109% perf-profile.children.cycles-pp.__wake_up_common 9.70 ± 60% -9.1 0.61 ±109% perf-profile.children.cycles-pp.__wake_up_common_lock 9.70 ± 59% -9.1 0.61 ±109% perf-profile.children.cycles-pp.default_wake_function 9.03 ± 40% -9.0 0.00 perf-profile.children.cycles-pp.do_exit 8.31 ± 38% -8.3 0.00 perf-profile.children.cycles-pp.sys_kill 8.29 ± 38% -8.3 0.00 perf-profile.children.cycles-pp.SYSC_kill 8.21 ± 38% -8.2 0.00 perf-profile.children.cycles-pp.kill_pid_info 8.19 ± 38% -8.2 0.00 perf-profile.children.cycles-pp.group_send_sig_info 8.07 ± 39% -8.1 0.00 perf-profile.children.cycles-pp.do_send_sig_info 8.01 ± 58% -8.0 0.00 perf-profile.children.cycles-pp.do_group_exit 7.99 ± 58% -8.0 0.00 perf-profile.children.cycles-pp.sys_exit_group 7.62 ± 38% -7.6 0.00 perf-profile.children.cycles-pp.send_signal 7.58 ± 39% -7.6 0.00 perf-profile.children.cycles-pp.__send_signal 61.22 ± 5% -7.5 53.67 ± 33% perf-profile.children.cycles-pp.entry_SYSCALL_64_fastpath 7.37 ± 39% -7.4 0.00 perf-profile.children.cycles-pp.sys_wait4 7.37 ± 39% -7.4 0.00 perf-profile.children.cycles-pp.SYSC_wait4 7.37 ± 39% -7.4 0.00 perf-profile.children.cycles-pp.kernel_wait4 7.36 ± 39% -7.4 0.00 perf-profile.children.cycles-pp.do_wait 7.88 ± 50% -7.3 0.61 ±109% perf-profile.children.cycles-pp.__wake_up_sync_key 6.59 ±100% -6.0 0.61 ±109% perf-profile.children.cycles-pp.autoremove_wake_function 5.38 ± 32% -5.4 0.00 perf-profile.children.cycles-pp.exit_to_usermode_loop 5.30 ± 98% -5.3 0.05 ±173% perf-profile.children.cycles-pp.wake_up_process 5.22 ±100% -5.2 0.00 perf-profile.children.cycles-pp.hrtimer_wakeup 5.31 ± 32% -5.1 0.21 ±173% perf-profile.children.cycles-pp.syscall_return_slowpath 5.01 ± 32% -5.0 0.00 perf-profile.children.cycles-pp.do_signal 5.00 ± 32% -5.0 0.00 perf-profile.children.cycles-pp.get_signal 4.88 ±101% -4.9 0.00 perf-profile.children.cycles-pp.down_write 4.67 ±102% -4.7 0.00 perf-profile.children.cycles-pp.call_rwsem_down_write_failed 4.62 ±103% -4.6 0.00 perf-profile.children.cycles-pp.rwsem_down_write_failed 4.75 ± 58% -4.6 0.13 ±132% perf-profile.children.cycles-pp.pick_next_task_fair 4.60 ± 82% -4.6 0.00 perf-profile.children.cycles-pp.mmput 4.58 ± 82% -4.6 0.00 perf-profile.children.cycles-pp.exit_mmap 3.87 ±106% -3.9 0.00 perf-profile.children.cycles-pp.osq_lock 3.76 ±100% -2.9 0.87 ± 88% perf-profile.children.cycles-pp.pipe_write 2.94 ± 99% -2.3 0.63 ±101% perf-profile.children.cycles-pp.pipe_read 5.58 ± 93% -1.5 4.09 ±127% perf-profile.children.cycles-pp.__hrtimer_run_queues 5.65 ± 92% -1.0 4.68 ±117% perf-profile.children.cycles-pp.hrtimer_interrupt 6.23 ± 81% +0.7 6.96 ± 99% perf-profile.children.cycles-pp.smp_apic_timer_interrupt 6.25 ± 81% +0.7 6.98 ± 99% perf-profile.children.cycles-pp.__irqentry_text_start 0.00 +3.9 3.88 ±104% perf-profile.children.cycles-pp._perf_event_disable 0.00 +4.2 4.16 ±105% perf-profile.children.cycles-pp.seq_read 3.15 ± 96% +5.5 8.68 ± 54% perf-profile.children.cycles-pp.sys_read 3.12 ± 96% +5.6 8.73 ± 54% perf-profile.children.cycles-pp.vfs_read 3.04 ± 96% +5.7 8.73 ± 54% perf-profile.children.cycles-pp.__vfs_read 0.31 ± 23% +8.5 8.82 ± 81% perf-profile.children.cycles-pp.__const_udelay 0.31 ± 21% +8.9 9.22 ± 80% perf-profile.children.cycles-pp.delay_tsc 0.56 ± 26% +10.4 10.96 ± 80% perf-profile.children.cycles-pp.io_serial_in 4.25 ± 90% +15.7 19.97 ±100% perf-profile.children.cycles-pp.sys_write 4.23 ± 90% +15.7 19.94 ±100% perf-profile.children.cycles-pp.vfs_write 4.13 ± 90% +15.8 19.94 ±100% perf-profile.children.cycles-pp.__vfs_write 0.02 ±173% +16.6 16.61 ± 37% perf-profile.children.cycles-pp._perf_event_enable 0.31 ± 31% +18.7 19.05 ±101% perf-profile.children.cycles-pp.vprintk_emit 0.31 ± 31% +18.7 19.05 ±101% perf-profile.children.cycles-pp.devkmsg_write 0.31 ± 31% +18.7 19.05 ±101% perf-profile.children.cycles-pp.printk_emit 0.87 ± 23% +19.3 20.13 ± 81% perf-profile.children.cycles-pp.uart_console_write 0.87 ± 23% +19.3 20.13 ± 81% perf-profile.children.cycles-pp.serial8250_console_putchar 0.87 ± 24% +19.3 20.18 ± 80% perf-profile.children.cycles-pp.wait_for_xmitr 0.33 ± 28% +19.5 19.87 ±101% perf-profile.children.cycles-pp.write 0.89 ± 23% +19.7 20.58 ± 80% perf-profile.children.cycles-pp.univ8250_console_write 0.89 ± 23% +19.7 20.58 ± 80% perf-profile.children.cycles-pp.serial8250_console_write 0.02 ±173% +20.5 20.48 ± 13% perf-profile.children.cycles-pp.ioctl 0.02 ±173% +20.5 20.48 ± 13% perf-profile.children.cycles-pp.sys_ioctl 0.02 ±173% +20.5 20.48 ± 13% perf-profile.children.cycles-pp.do_vfs_ioctl 0.02 ±173% +20.5 20.48 ± 13% perf-profile.children.cycles-pp.perf_ioctl 0.02 ±173% +20.5 20.48 ± 13% perf-profile.children.cycles-pp.perf_event_for_each_child 0.02 ±173% +20.5 20.48 ± 13% perf-profile.children.cycles-pp.event_function_call 1.01 ± 26% +20.5 21.49 ± 80% perf-profile.children.cycles-pp.console_unlock 0.13 ± 13% +23.1 23.19 ± 30% perf-profile.children.cycles-pp.__libc_start_main 0.14 ± 33% +24.0 24.16 ± 26% perf-profile.children.cycles-pp.smp_call_function_single 10.06 ± 17% +25.8 35.87 ± 43% perf-profile.children.cycles-pp.intel_idle 13.38 ± 24% +30.5 43.87 ± 41% perf-profile.children.cycles-pp.start_secondary 13.51 ± 24% +31.2 44.71 ± 40% perf-profile.children.cycles-pp.do_idle 13.53 ± 24% +31.3 44.81 ± 41% perf-profile.children.cycles-pp.verify_cpu 13.53 ± 24% +31.3 44.81 ± 41% perf-profile.children.cycles-pp.cpu_startup_entry 11.31 ± 17% +31.9 43.18 ± 39% perf-profile.children.cycles-pp.cpuidle_enter_state 11.33 ± 17% +32.0 43.36 ± 40% perf-profile.children.cycles-pp.cpuidle_enter 11.34 ± 17% +32.1 43.46 ± 40% perf-profile.children.cycles-pp.call_cpuidle 38.10 ± 39% -37.8 0.25 ±173% perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath 3.82 ±107% -3.8 0.00 perf-profile.self.cycles-pp.osq_lock 0.31 ± 21% +8.9 9.22 ± 80% perf-profile.self.cycles-pp.delay_tsc 0.56 ± 26% +10.4 10.96 ± 80% perf-profile.self.cycles-pp.io_serial_in 0.13 ± 31% +24.0 24.08 ± 25% perf-profile.self.cycles-pp.smp_call_function_single 10.06 ± 17% +25.8 35.87 ± 43% perf-profile.self.cycles-pp.intel_idle stress-ng.clone.ops_per_sec 900 +-+-------------------------------------------------------------------+ O | 800 +-+ | 700 +-+ O O O | | O O | 600 +-+ O O O O O O O O | 500 +-O O O | | | 400 +-+ O | 300 +-+ | | | 200 +-+ | 100 +-+ | | | 0 +-+-------------------------------------------------------------------+ stress-ng.time.elapsed_time 130 +-+-------------------------------------------------------------------+ 120 +-+ + | | :: | 110 +-+ : : .+. .| 100 +-+ : +.+ + | | : | 90 +-+ .+ + +.: | 80 +-+.+. + +.+. .+. .+.+ : + + +. + + | 70 +-+ +. + + + +.+.+. .+.+ + : .+.+ +. + + | | + + + + + | 60 +-+ | 50 +-+ | | O O | 40 O-O O O O O O O O O | 30 +-+-O-O-O-O-----O---------------O-------------------------------------+ stress-ng.time.elapsed_time.max 130 +-+-------------------------------------------------------------------+ 120 +-+ + | | :: | 110 +-+ : : .+. .| 100 +-+ : +.+ + | | : | 90 +-+ .+ + +.: | 80 +-+.+. + +.+. .+. .+.+ : + + +. + + | 70 +-+ +. + + + +.+.+. .+.+ + : .+.+ +. + + | | + + + + + | 60 +-+ | 50 +-+ | | O O | 40 O-O O O O O O O O O | 30 +-+-O-O-O-O-----O---------------O-------------------------------------+ [*] bisect-good sample [O] bisect-bad sample Disclaimer: Results have been estimated based on internal Intel analysis and are provided for informational purposes only. Any difference in system hardware or software design or configuration may affect actual performance. Thanks, Xiaolong