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

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Date:	Tue, 19 Apr 2016 17:10:45 -0400
From:	Paul Moore <paul@...l-moore.com>
To:	kernel test robot <xiaolong.ye@...el.com>
Cc:	LKML <linux-kernel@...r.kernel.org>, lkp@...org
Subject: Re: [lkp] [selinux] 759b31c1d4: unixbench.score -9.7% regression

On Wed, Mar 30, 2016 at 10:38 PM, kernel test robot
<xiaolong.ye@...el.com> wrote:
> 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")

Thanks for reporting this; it took a while, but I believe we have
resolved this in the SELinux next branch with three patches that were
merged today.

> =========================================================================================
> 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 ą  0%      -9.7%       1781 ą  0%  unixbench.score
>      16298 ą  5%     -12.4%      14272 ą  5%  cpuidle.C1-IVT.usage
>      10890 ą 19%     +84.8%      20129 ą 28%  cpuidle.POLL.usage
>       2394 ą153%     +93.8%       4641 ą 90%  numa-meminfo.node1.Inactive(anon)
>       2545 ą146%     +89.6%       4827 ą 86%  numa-meminfo.node1.Shmem
>     598.25 ą153%     +93.9%       1160 ą 90%  numa-vmstat.node1.nr_inactive_anon
>     636.00 ą146%     +89.7%       1206 ą 86%  numa-vmstat.node1.nr_shmem
>      19716 ą  8%     -17.5%      16267 ą 12%  sched_debug.cfs_rq:/.min_vruntime.stddev
>      19716 ą  8%     -17.5%      16267 ą 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



-- 
paul moore
www.paul-moore.com