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Date: Mon, 25 Dec 2017 10:47:33 +0800
From: kernel test robot <xiaolong.ye@...el.com>
To: Florian Westphal <fw@...len.de>
Cc: Pablo Neira Ayuso <pablo@...filter.org>,
Giuseppe Scrivano <gscrivan@...hat.com>,
LKML <linux-kernel@...r.kernel.org>,
Stephen Rothwell <sfr@...b.auug.org.au>, lkp@...org
Subject: [lkp-robot] [netfilter] f4ae02e01d: stress-ng.clone.ops 176.5%
improvement
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
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