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* [rcu] 0acd7c39a85: +11.0% will-it-scale.scalability
@ 2014-06-26  1:56 Fengguang Wu
  2014-06-26  2:16 ` Paul E. McKenney
  0 siblings, 1 reply; 2+ messages in thread
From: Fengguang Wu @ 2014-06-26  1:56 UTC (permalink / raw)
  To: Paul E. McKenney; +Cc: Dave Hansen, LKML, lkp, Jet Chen

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

^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: [rcu] 0acd7c39a85: +11.0% will-it-scale.scalability
  2014-06-26  1:56 [rcu] 0acd7c39a85: +11.0% will-it-scale.scalability Fengguang Wu
@ 2014-06-26  2:16 ` Paul E. McKenney
  0 siblings, 0 replies; 2+ messages in thread
From: Paul E. McKenney @ 2014-06-26  2:16 UTC (permalink / raw)
  To: Fengguang Wu; +Cc: Dave Hansen, LKML, lkp, Jet Chen

On Thu, Jun 26, 2014 at 09:56:16AM +0800, Fengguang Wu wrote:
> Hi Paul,
> 
> FYI, we are pleased to notice big performance gains in some
> will-it-scale test cases:

Unfortunately, this one is also obsoleted by commit 4a81e8328d37 (Reduce
overhead of cond_resched() checks for RCU).  Hopefully that commit also
shows similar performance gains.  ;-)

							Thanx, Paul

> 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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