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Date: Thu, 26 Jun 2014 09:56:16 +0800
From: Fengguang Wu <fengguang.wu@...el.com>
To: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc: Dave Hansen <dave.hansen@...el.com>,
LKML <linux-kernel@...r.kernel.org>, lkp@...org,
Jet Chen <jet.chen@...el.com>
Subject: [rcu] 0acd7c39a85: +11.0% will-it-scale.scalability
Hi Paul,
FYI, we are pleased to notice big performance gains in some
will-it-scale test cases:
git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git rcu_cond_resched.2014.06.20c
commit 0acd7c39a85836d90451b6c278c5cfdd21c055f3 ("rcu: Add RCU_COND_RESCHED_QS for large systems")
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
0.30 ~ 2% +14.3% 0.34 ~ 3% lkp-sbx04/will-it-scale/open1
0.34 ~ 3% +8.1% 0.37 ~ 1% nhm4/will-it-scale/read1
0.64 ~ 3% +11.0% 0.71 ~ 2% TOTAL will-it-scale.scalability
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
592828 ~ 1% +3.8% 615531 ~ 1% lkp-sbx04/will-it-scale/open1
592828 ~ 1% +3.8% 615531 ~ 1% TOTAL will-it-scale.per_process_ops
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
1689 ~ 0% +498.1% 10107 ~ 2% lkp-sbx04/will-it-scale/unlink2
1689 ~ 0% +498.1% 10107 ~ 2% TOTAL slabinfo.dentry.active_slabs
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
72052 ~ 0% +489.8% 424930 ~ 2% lkp-sbx04/will-it-scale/unlink2
72052 ~ 0% +489.8% 424930 ~ 2% TOTAL slabinfo.Acpi-State.num_objs
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
71629 ~ 0% +492.6% 424494 ~ 2% lkp-sbx04/will-it-scale/unlink2
71629 ~ 0% +492.6% 424494 ~ 2% TOTAL slabinfo.Acpi-State.active_objs
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
1689 ~ 0% +498.1% 10107 ~ 2% lkp-sbx04/will-it-scale/unlink2
1689 ~ 0% +498.1% 10107 ~ 2% TOTAL slabinfo.dentry.num_slabs
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
1412 ~ 0% +490.0% 8331 ~ 2% lkp-sbx04/will-it-scale/unlink2
1412 ~ 0% +490.0% 8331 ~ 2% TOTAL slabinfo.Acpi-State.active_slabs
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
70980 ~ 0% +498.1% 424517 ~ 2% lkp-sbx04/will-it-scale/unlink2
70980 ~ 0% +498.1% 424517 ~ 2% TOTAL slabinfo.dentry.num_objs
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
70444 ~ 0% +502.0% 424054 ~ 2% lkp-sbx04/will-it-scale/unlink2
70444 ~ 0% +502.0% 424054 ~ 2% TOTAL slabinfo.dentry.active_objs
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
472 ~ 0% +1557.0% 7827 ~ 2% lkp-sbx04/will-it-scale/unlink2
472 ~ 0% +1557.0% 7827 ~ 2% TOTAL slabinfo.shmem_inode_cache.num_slabs
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
472 ~ 0% +1557.0% 7827 ~ 2% lkp-sbx04/will-it-scale/unlink2
472 ~ 0% +1557.0% 7827 ~ 2% TOTAL slabinfo.shmem_inode_cache.active_slabs
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
22697 ~ 0% +1555.5% 375756 ~ 2% lkp-sbx04/will-it-scale/unlink2
22697 ~ 0% +1555.5% 375756 ~ 2% TOTAL slabinfo.shmem_inode_cache.num_objs
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
22297 ~ 0% +1584.0% 375494 ~ 2% lkp-sbx04/will-it-scale/unlink2
22297 ~ 0% +1584.0% 375494 ~ 2% TOTAL slabinfo.shmem_inode_cache.active_objs
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
1412 ~ 0% +490.0% 8331 ~ 2% lkp-sbx04/will-it-scale/unlink2
1412 ~ 0% +490.0% 8331 ~ 2% TOTAL slabinfo.Acpi-State.num_slabs
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
230182 ~ 2% +214.7% 724407 ~ 1% lkp-sbx04/will-it-scale/open1
29926 ~ 1% +1179.6% 382938 ~ 2% lkp-sbx04/will-it-scale/unlink2
260108 ~ 2% +325.7% 1107345 ~ 1% TOTAL slabinfo.kmalloc-256.active_objs
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
3605 ~ 2% +214.1% 11325 ~ 1% lkp-sbx04/will-it-scale/open1
478 ~ 1% +1153.4% 5991 ~ 2% lkp-sbx04/will-it-scale/unlink2
4083 ~ 2% +324.1% 17316 ~ 1% TOTAL slabinfo.kmalloc-256.num_slabs
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
3605 ~ 2% +214.1% 11325 ~ 1% lkp-sbx04/will-it-scale/open1
478 ~ 1% +1153.4% 5991 ~ 2% lkp-sbx04/will-it-scale/unlink2
4083 ~ 2% +324.1% 17316 ~ 1% TOTAL slabinfo.kmalloc-256.active_slabs
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
230776 ~ 2% +214.1% 724862 ~ 1% lkp-sbx04/will-it-scale/open1
30619 ~ 1% +1152.4% 383473 ~ 2% lkp-sbx04/will-it-scale/unlink2
261395 ~ 2% +324.0% 1108335 ~ 1% TOTAL slabinfo.kmalloc-256.num_objs
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
38033 ~ 2% +85.2% 70426 ~ 3% lkp-sbx04/will-it-scale/open1
27083 ~ 8% +375.9% 128878 ~ 1% lkp-sbx04/will-it-scale/unlink2
65116 ~ 4% +206.1% 199305 ~ 2% TOTAL numa-meminfo.node1.SUnreclaim
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
9470 ~ 1% +87.6% 17770 ~ 4% lkp-sbx04/will-it-scale/open1
6769 ~ 8% +375.7% 32201 ~ 1% lkp-sbx04/will-it-scale/unlink2
16240 ~ 4% +207.7% 49971 ~ 2% TOTAL numa-vmstat.node1.nr_slab_unreclaimable
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
302149 ~ 1% -73.4% 80465 ~ 0% lkp-nex05/will-it-scale/lock1
853141 ~ 2% -66.6% 284788 ~ 3% lkp-sbx04/will-it-scale/open1
693207 ~ 0% -82.6% 120744 ~ 9% lkp-sbx04/will-it-scale/unlink2
434870 ~ 2% -63.8% 157362 ~ 1% lkp-wsx01/will-it-scale/futex2
55884 ~ 5% -55.3% 24956 ~ 4% nhm4/will-it-scale/read1
2339252 ~ 1% -71.4% 668317 ~ 3% TOTAL softirqs.RCU
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
51492 ~ 3% +75.4% 90311 ~ 2% lkp-sbx04/will-it-scale/open1
39615 ~ 2% +332.8% 171468 ~ 1% lkp-sbx04/will-it-scale/unlink2
91107 ~ 3% +187.3% 261779 ~ 1% TOTAL numa-meminfo.node0.SUnreclaim
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
18566237 ~32% +133.3% 43314913 ~21% lkp-sbx04/will-it-scale/open1
22235565 ~30% +176.7% 61536286 ~21% lkp-sbx04/will-it-scale/unlink2
40801803 ~31% +157.0% 104851199 ~21% TOTAL cpuidle.C1-SNB.time
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
12835 ~ 4% +76.6% 22664 ~ 3% lkp-sbx04/will-it-scale/open1
9928 ~ 2% +331.3% 42820 ~ 1% lkp-sbx04/will-it-scale/unlink2
22764 ~ 3% +187.7% 65484 ~ 1% TOTAL numa-vmstat.node0.nr_slab_unreclaimable
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
149956 ~ 1% +81.6% 272270 ~ 1% lkp-sbx04/will-it-scale/open1
112319 ~ 0% +312.8% 463620 ~ 1% lkp-sbx04/will-it-scale/unlink2
262275 ~ 1% +180.6% 735890 ~ 1% TOTAL meminfo.SUnreclaim
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
49308 ~ 4% +66.6% 82136 ~ 3% lkp-sbx04/will-it-scale/open1
38437 ~ 5% +314.4% 159290 ~ 2% lkp-sbx04/will-it-scale/unlink2
87745 ~ 4% +175.1% 241426 ~ 2% TOTAL numa-meminfo.node1.Slab
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
37339 ~ 1% +81.4% 67717 ~ 1% lkp-sbx04/will-it-scale/open1
28028 ~ 0% +313.1% 115797 ~ 1% lkp-sbx04/will-it-scale/unlink2
65368 ~ 1% +180.7% 183514 ~ 1% TOTAL proc-vmstat.nr_slab_unreclaimable
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
31729 ~ 8% +79.4% 56907 ~ 2% lkp-sbx04/will-it-scale/open1
22831 ~ 6% +295.0% 90181 ~ 2% lkp-sbx04/will-it-scale/unlink2
54560 ~ 7% +169.6% 147088 ~ 2% TOTAL numa-meminfo.node2.SUnreclaim
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
8014 ~ 9% +77.4% 14215 ~ 3% lkp-sbx04/will-it-scale/open1
5703 ~ 6% +294.5% 22500 ~ 2% lkp-sbx04/will-it-scale/unlink2
13717 ~ 8% +167.6% 36715 ~ 2% TOTAL numa-vmstat.node2.nr_slab_unreclaimable
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
14049 ~ 9% +162.8% 36926 ~ 2% lkp-sbx04/will-it-scale/unlink2
14049 ~ 9% +162.8% 36926 ~ 2% TOTAL numa-meminfo.node0.SReclaimable
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
3505 ~ 9% +163.0% 9218 ~ 1% lkp-sbx04/will-it-scale/unlink2
3505 ~ 9% +163.0% 9218 ~ 1% TOTAL numa-vmstat.node0.nr_slab_reclaimable
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
2840 ~ 6% +167.5% 7598 ~ 4% lkp-sbx04/will-it-scale/unlink2
2840 ~ 6% +167.5% 7598 ~ 4% TOTAL numa-vmstat.node1.nr_slab_reclaimable
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
11353 ~ 6% +167.9% 30411 ~ 4% lkp-sbx04/will-it-scale/unlink2
11353 ~ 6% +167.9% 30411 ~ 4% TOTAL numa-meminfo.node1.SReclaimable
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
62873 ~ 2% +60.7% 101060 ~ 2% lkp-sbx04/will-it-scale/open1
53665 ~ 2% +288.3% 208395 ~ 1% lkp-sbx04/will-it-scale/unlink2
116538 ~ 2% +165.5% 309456 ~ 1% TOTAL numa-meminfo.node0.Slab
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
195370 ~ 0% +62.8% 318033 ~ 1% lkp-sbx04/will-it-scale/open1
161158 ~ 0% +258.0% 576939 ~ 1% lkp-sbx04/will-it-scale/unlink2
356528 ~ 0% +151.0% 894972 ~ 1% TOTAL meminfo.Slab
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
28175 ~ 2% +78.7% 50339 ~ 4% lkp-sbx04/will-it-scale/open1
22550 ~10% +211.4% 70229 ~ 5% lkp-sbx04/will-it-scale/unlink2
50725 ~ 6% +137.7% 120568 ~ 5% TOTAL numa-meminfo.node3.SUnreclaim
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
7070 ~ 3% +77.8% 12570 ~ 4% lkp-sbx04/will-it-scale/open1
5633 ~10% +211.2% 17532 ~ 5% lkp-sbx04/will-it-scale/unlink2
12704 ~ 6% +137.0% 30102 ~ 5% TOTAL numa-vmstat.node3.nr_slab_unreclaimable
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
48838 ~ 1% +132.0% 113319 ~ 1% lkp-sbx04/will-it-scale/unlink2
48838 ~ 1% +132.0% 113319 ~ 1% TOTAL meminfo.SReclaimable
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
12200 ~ 1% +132.1% 28313 ~ 1% lkp-sbx04/will-it-scale/unlink2
12200 ~ 1% +132.1% 28313 ~ 1% TOTAL proc-vmstat.nr_slab_reclaimable
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
39455 ~ 5% +58.3% 62461 ~ 3% lkp-sbx04/will-it-scale/open1
33103 ~10% +172.9% 90331 ~ 3% lkp-sbx04/will-it-scale/unlink2
72559 ~ 7% +110.6% 152793 ~ 3% TOTAL numa-meminfo.node3.Slab
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
43199 ~ 8% +57.6% 68080 ~ 4% lkp-sbx04/will-it-scale/open1
35542 ~ 7% +224.5% 115339 ~ 2% lkp-sbx04/will-it-scale/unlink2
31726 ~ 7% +15.3% 36592 ~12% lkp-wsx01/will-it-scale/futex2
110469 ~ 7% +99.2% 220012 ~ 4% TOTAL numa-meminfo.node2.Slab
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
12710 ~12% +97.9% 25157 ~ 5% lkp-sbx04/will-it-scale/unlink2
12710 ~12% +97.9% 25157 ~ 5% TOTAL numa-meminfo.node2.SReclaimable
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
3179 ~11% +97.5% 6279 ~ 5% lkp-sbx04/will-it-scale/unlink2
3179 ~11% +97.5% 6279 ~ 5% TOTAL numa-vmstat.node2.nr_slab_reclaimable
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
10553 ~ 9% +90.5% 20102 ~ 6% lkp-sbx04/will-it-scale/unlink2
10553 ~ 9% +90.5% 20102 ~ 6% TOTAL numa-meminfo.node3.SReclaimable
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
2644 ~10% +89.9% 5020 ~ 6% lkp-sbx04/will-it-scale/unlink2
2644 ~10% +89.9% 5020 ~ 6% TOTAL numa-vmstat.node3.nr_slab_reclaimable
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
6034 ~26% +16.1% 7008 ~22% lkp-sbx04/will-it-scale/open1
6034 ~26% +16.1% 7008 ~22% TOTAL numa-vmstat.node2.nr_active_file
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
24139 ~26% +16.1% 28033 ~22% lkp-sbx04/will-it-scale/open1
24139 ~26% +16.1% 28033 ~22% TOTAL numa-meminfo.node2.Active(file)
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
0.55 ~35% +94.2% 1.08 ~14% lkp-sbx04/will-it-scale/unlink2
0.55 ~35% +94.2% 1.08 ~14% TOTAL perf-profile.cpu-cycles.rcu_nocb_kthread.kthread.ret_from_fork
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
498234 ~ 1% -35.9% 319244 ~ 1% lkp-sbx04/will-it-scale/open1
425531 ~ 2% -39.8% 256020 ~ 2% lkp-sbx04/will-it-scale/unlink2
923765 ~ 2% -37.7% 575264 ~ 2% TOTAL cpuidle.C7-SNB.usage
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
327 ~ 9% -26.2% 241 ~21% lkp-nex05/will-it-scale/lock1
327 ~ 9% -26.2% 241 ~21% TOTAL slabinfo.blkdev_ioc.num_objs
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
327 ~ 9% -26.2% 241 ~21% lkp-nex05/will-it-scale/lock1
327 ~ 9% -26.2% 241 ~21% TOTAL slabinfo.blkdev_ioc.active_objs
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
4608661 ~ 5% +15.0% 5300401 ~ 3% lkp-sbx04/will-it-scale/open1
631679 ~ 4% +64.1% 1036539 ~ 1% lkp-sbx04/will-it-scale/unlink2
5240340 ~ 5% +20.9% 6336941 ~ 3% TOTAL numa-numastat.node2.numa_hit
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
4606166 ~ 5% +15.0% 5298738 ~ 3% lkp-sbx04/will-it-scale/open1
630014 ~ 4% +64.4% 1035707 ~ 1% lkp-sbx04/will-it-scale/unlink2
5236180 ~ 5% +21.0% 6334445 ~ 3% TOTAL numa-numastat.node2.local_node
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
6319649 ~ 2% +11.6% 7054325 ~ 3% lkp-sbx04/will-it-scale/open1
1017618 ~ 3% +59.6% 1624227 ~ 1% lkp-sbx04/will-it-scale/unlink2
7337268 ~ 3% +18.3% 8678552 ~ 2% TOTAL numa-numastat.node1.local_node
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
6323803 ~ 2% +11.6% 7058478 ~ 3% lkp-sbx04/will-it-scale/open1
1021772 ~ 3% +59.4% 1628381 ~ 1% lkp-sbx04/will-it-scale/unlink2
7345576 ~ 3% +18.3% 8686859 ~ 2% TOTAL numa-numastat.node1.numa_hit
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
3533020 ~ 7% +16.2% 4106277 ~ 3% lkp-sbx04/will-it-scale/open1
529616 ~ 6% +59.8% 846268 ~ 2% lkp-sbx04/will-it-scale/unlink2
4062636 ~ 7% +21.9% 4952546 ~ 3% TOTAL numa-numastat.node3.local_node
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
3534685 ~ 7% +16.2% 4108772 ~ 3% lkp-sbx04/will-it-scale/open1
532111 ~ 6% +59.7% 849592 ~ 2% lkp-sbx04/will-it-scale/unlink2
4066797 ~ 7% +21.9% 4958364 ~ 3% TOTAL numa-numastat.node3.numa_hit
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
699767 ~ 4% +30.0% 909550 ~ 2% lkp-sbx04/will-it-scale/unlink2
699767 ~ 4% +30.0% 909550 ~ 2% TOTAL numa-vmstat.node1.numa_local
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
710327 ~ 4% +29.5% 920095 ~ 2% lkp-sbx04/will-it-scale/unlink2
710327 ~ 4% +29.5% 920095 ~ 2% TOTAL numa-vmstat.node1.numa_hit
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
355465 ~ 3% +32.2% 469857 ~ 1% lkp-sbx04/will-it-scale/unlink2
355465 ~ 3% +32.2% 469857 ~ 1% TOTAL numa-vmstat.node2.numa_local
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
401800 ~ 0% +30.8% 525635 ~ 1% lkp-sbx04/will-it-scale/unlink2
401800 ~ 0% +30.8% 525635 ~ 1% TOTAL numa-meminfo.node1.MemUsed
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
330376 ~ 1% +11.7% 369194 ~ 1% lkp-sbx04/will-it-scale/open1
327252 ~ 0% +47.0% 480920 ~ 1% lkp-sbx04/will-it-scale/unlink2
657628 ~ 0% +29.3% 850114 ~ 1% TOTAL numa-meminfo.node0.MemUsed
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
395008 ~ 2% +28.8% 508797 ~ 1% lkp-sbx04/will-it-scale/unlink2
395008 ~ 2% +28.8% 508797 ~ 1% TOTAL numa-vmstat.node2.numa_hit
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
84008013 ~ 4% +12.5% 94488610 ~ 1% lkp-sbx04/will-it-scale/open1
20904484 ~ 1% +35.9% 28407692 ~ 0% lkp-sbx04/will-it-scale/unlink2
104912497 ~ 3% +17.1% 122896302 ~ 1% TOTAL proc-vmstat.pgalloc_normal
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
20 ~19% +69.3% 34 ~32% lkp-sbx04/will-it-scale/unlink2
20 ~19% +69.3% 34 ~32% TOTAL cpuidle.C6-SNB.usage
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
90818481 ~ 4% +12.2% 1.019e+08 ~ 1% lkp-sbx04/will-it-scale/open1
24507722 ~ 1% +32.8% 32552022 ~ 0% lkp-sbx04/will-it-scale/unlink2
1.153e+08 ~ 3% +16.6% 1.344e+08 ~ 1% TOTAL proc-vmstat.pgfree
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
23331601 ~ 4% +11.8% 26096052 ~ 1% lkp-sbx04/will-it-scale/open1
7360836 ~ 1% +29.1% 9500981 ~ 0% lkp-sbx04/will-it-scale/unlink2
30692438 ~ 3% +16.0% 35597034 ~ 1% TOTAL proc-vmstat.numa_local
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
23344069 ~ 4% +11.8% 26108517 ~ 1% lkp-sbx04/will-it-scale/open1
7373303 ~ 1% +29.0% 9513445 ~ 0% lkp-sbx04/will-it-scale/unlink2
30717373 ~ 3% +16.0% 35621962 ~ 1% TOTAL proc-vmstat.numa_hit
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
293077 ~ 3% +9.2% 320181 ~ 3% lkp-sbx04/will-it-scale/open1
289901 ~ 3% +29.0% 374077 ~ 2% lkp-sbx04/will-it-scale/unlink2
582978 ~ 3% +19.1% 694258 ~ 2% TOTAL numa-meminfo.node2.MemUsed
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
1.34 ~10% -18.2% 1.10 ~ 6% lkp-sbx04/will-it-scale/open1
1.34 ~10% -18.2% 1.10 ~ 6% TOTAL perf-profile.cpu-cycles.task_work_add.filp_close.__close_fd.sys_close.system_call_fastpath
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
310408 ~ 3% +17.2% 363768 ~ 4% lkp-sbx04/will-it-scale/unlink2
310408 ~ 3% +17.2% 363768 ~ 4% TOTAL numa-vmstat.node3.numa_local
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
278872 ~ 3% +18.9% 331653 ~ 2% lkp-sbx04/will-it-scale/unlink2
278872 ~ 3% +18.9% 331653 ~ 2% TOTAL numa-meminfo.node3.MemUsed
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
1.83 ~ 3% +17.5% 2.15 ~ 3% nhm4/will-it-scale/read1
1.83 ~ 3% +17.5% 2.15 ~ 3% TOTAL perf-profile.cpu-cycles.find_lock_entry.shmem_getpage_gfp.shmem_file_read_iter.new_sync_read.vfs_read
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
350441 ~ 3% +15.4% 404433 ~ 4% lkp-sbx04/will-it-scale/unlink2
350441 ~ 3% +15.4% 404433 ~ 4% TOTAL numa-vmstat.node3.numa_hit
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
11130 ~ 1% +18.7% 13216 ~ 2% lkp-nex05/will-it-scale/lock1
13337 ~ 2% +15.2% 15360 ~ 4% lkp-sbx04/will-it-scale/unlink2
12236 ~ 1% +16.4% 14247 ~ 1% lkp-wsx01/will-it-scale/futex2
36704 ~ 2% +16.7% 42823 ~ 3% TOTAL slabinfo.kmalloc-192.num_objs
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
11130 ~ 1% +18.6% 13206 ~ 2% lkp-nex05/will-it-scale/lock1
13337 ~ 2% +14.8% 15306 ~ 4% lkp-sbx04/will-it-scale/unlink2
12236 ~ 1% +16.4% 14247 ~ 1% lkp-wsx01/will-it-scale/futex2
36704 ~ 2% +16.5% 42760 ~ 3% TOTAL slabinfo.kmalloc-192.active_objs
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
6819069 ~ 3% +8.6% 7407793 ~ 2% lkp-sbx04/will-it-scale/open1
3615190 ~ 1% +15.2% 4164246 ~ 0% lkp-sbx04/will-it-scale/unlink2
10434260 ~ 2% +10.9% 11572039 ~ 1% TOTAL proc-vmstat.pgalloc_dma32
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
8856248 ~ 3% +8.6% 9619086 ~ 2% lkp-sbx04/will-it-scale/open1
5216071 ~ 2% +14.6% 5979211 ~ 0% lkp-sbx04/will-it-scale/unlink2
14072319 ~ 2% +10.8% 15598298 ~ 1% TOTAL numa-numastat.node0.local_node
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
8860401 ~ 3% +8.6% 9623240 ~ 2% lkp-sbx04/will-it-scale/open1
5220224 ~ 2% +14.6% 5983365 ~ 0% lkp-sbx04/will-it-scale/unlink2
14080626 ~ 2% +10.8% 15606605 ~ 1% TOTAL numa-numastat.node0.numa_hit
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
4865 ~ 2% +13.5% 5524 ~ 6% lkp-sbx04/will-it-scale/open1
4865 ~ 2% +13.5% 5524 ~ 6% TOTAL cpuidle.C1-SNB.usage
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
2231 ~ 5% +9.1% 2434 ~ 7% lkp-sbx04/will-it-scale/unlink2
2231 ~ 5% +9.1% 2434 ~ 7% TOTAL numa-meminfo.node3.KernelStack
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
2438 ~ 2% +10.7% 2700 ~ 1% lkp-nex05/will-it-scale/lock1
2438 ~ 2% +10.7% 2700 ~ 1% TOTAL slabinfo.signal_cache.num_objs
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
17183 ~ 1% +131.6% 39791 ~ 0% lkp-nex05/will-it-scale/lock1
67122 ~ 3% -18.0% 55048 ~ 0% lkp-sbx04/will-it-scale/open1
67648 ~ 6% -18.5% 55135 ~ 0% lkp-sbx04/will-it-scale/unlink2
21242 ~ 0% +99.3% 42326 ~ 0% lkp-wsx01/will-it-scale/futex2
6224 ~ 3% +52.1% 9468 ~ 2% nhm4/will-it-scale/read1
179420 ~ 4% +12.5% 201771 ~ 0% TOTAL time.involuntary_context_switches
acf426994c75e38 0acd7c39a85836d90451b6c27
--------------- -------------------------
1054 ~ 1% +19.4% 1258 ~ 1% lkp-nex05/will-it-scale/lock1
4445 ~ 1% -40.5% 2645 ~ 0% lkp-sbx04/will-it-scale/open1
3861 ~ 0% -55.5% 1717 ~ 1% lkp-sbx04/will-it-scale/unlink2
1142 ~ 1% +15.4% 1318 ~ 1% lkp-wsx01/will-it-scale/futex2
527 ~ 1% +18.1% 622 ~ 1% nhm4/will-it-scale/read1
11030 ~ 1% -31.4% 7562 ~ 1% TOTAL vmstat.system.cs
Legend:
~XX% - stddev percent
[+-]XX% - change percent
time.involuntary_context_switches
75000 *+--*----------------*----------------------------------------------+
| : + |
| *...*.. : + * |
70000 ++ *... : + + + |
| * *...*.. + + .* |
| *...* + .. |
65000 ++ * |
| |
60000 ++ |
| |
| |
55000 O+ O O O O O O O O O O O O O O O O O O
| O |
| |
50000 ++------------------------------------------------------------------+
vmstat.system.cs
6000 ++-------------------------------------------------------------------+
| |
5500 *+..*..*...*...*..*...*..*... |
| *. |
5000 ++ .. |
| |
4500 ++ *..*...*...*.. |
| * |
4000 ++ |
| |
3500 ++ |
| |
3000 ++ |
| O O O O O O O O O O O O
2500 O+-----O---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,
Fengguang
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