linux-kernel - [lkp] [selinux] 759b31c1d4: unixbench.score -9.7% regression

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Date:	Thu, 31 Mar 2016 10:38:12 +0800
From:	kernel test robot <xiaolong.ye@...el.com>
To:	Paul Moore <paul@...l-moore.com>
Cc:	LKML <linux-kernel@...r.kernel.org>, lkp@...org
Subject: [lkp] [selinux] 759b31c1d4: unixbench.score -9.7% regression

FYI, we noticed that unixbench.score -9.7% regression on

https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
commit 759b31c1d4295a1dab34b4669ee838fb3131cd91 ("selinux: simply inode label states to INVALID and INITIALIZED")


=========================================================================================
compiler/cpufreq_governor/kconfig/nr_task/rootfs/tbox_group/test/testcase:
  gcc-4.9/performance/x86_64-rhel/1/debian-x86_64-2015-02-07.cgz/ivb42/pipe/unixbench

commit: 
  48c2353e841141683e13771ecd6684350004ccac
  759b31c1d4295a1dab34b4669ee838fb3131cd91

48c2353e84114168 759b31c1d4295a1dab34b4669e 
---------------- -------------------------- 
         %stddev     %change         %stddev
             \          |                \  
      1972 ±  0%      -9.7%       1781 ±  0%  unixbench.score
     16298 ±  5%     -12.4%      14272 ±  5%  cpuidle.C1-IVT.usage
     10890 ± 19%     +84.8%      20129 ± 28%  cpuidle.POLL.usage
      2394 ±153%     +93.8%       4641 ± 90%  numa-meminfo.node1.Inactive(anon)
      2545 ±146%     +89.6%       4827 ± 86%  numa-meminfo.node1.Shmem
    598.25 ±153%     +93.9%       1160 ± 90%  numa-vmstat.node1.nr_inactive_anon
    636.00 ±146%     +89.7%       1206 ± 86%  numa-vmstat.node1.nr_shmem
     19716 ±  8%     -17.5%      16267 ± 12%  sched_debug.cfs_rq:/.min_vruntime.stddev
     19716 ±  8%     -17.5%      16267 ± 12%  sched_debug.cfs_rq:/.spread0.stddev

lkp-wsx02: Westmere-EX
Memory: 128G



                                  unixbench.score

  2000 *+**-*--*-*-----------------*-**-*-**-**-*-**-*-**-------------------+
       |      *    **.**.         +                      :   *.*.**.**.     |
       |                 *.**.*.**                       :   :         *.**.*
  1950 ++                                                 *.*               |
       |                                                                    |
       |                                                                    |
  1900 ++                                                                   |
       |                                                                    |
  1850 ++                                                                   |
       |                                                                    |
       |                                                                    |
  1800 ++                  O                                                |
       |           OO OO O  O O OO O OO O                                   |
       O OO O OO O                                                          |
  1750 ++-------------------------------------------------------------------+


	[*] bisect-good sample
	[O] bisect-bad  sample

To reproduce:

        git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
        cd lkp-tests
        bin/lkp install job.yaml  # job file is attached in this email
        bin/lkp run     job.yaml


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 Ye

View attachment "job.yaml" of type "text/plain" (3332 bytes)

View attachment "reproduce" of type "text/plain" (4539 bytes)