linux-kernel - Re: [lkp] [selinux] 5d226df4ed: -10.1% unixbench.score

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Message-ID: <CAHpGcMJzMYqStQ0c0ib-8FdV2hwv44HQVpYzasttBVLxhhPy+w@mail.gmail.com>
Date:	Mon, 4 Jan 2016 23:27:59 +0100
From:	Andreas Grünbacher <andreas.gruenbacher@...il.com>
To:	kernel test robot <ying.huang@...ux.intel.com>
Cc:	Andreas Gruenbacher <agruenba@...hat.com>, lkp@...org,
	LKML <linux-kernel@...r.kernel.org>,
	Stephen Smalley <sds@...ho.nsa.gov>,
	Paul Moore <pmoore@...hat.com>
Subject: Re: [lkp] [selinux] 5d226df4ed: -10.1% unixbench.score

2015-12-28 2:59 GMT+01:00 kernel test robot <ying.huang@...ux.intel.com>:
> FYI, we noticed the below changes on
>
> git://git.infradead.org/users/pcmoore/selinux stable-4.5
> commit 5d226df4edfa0eb1e689e7ac2741cf261ff7cbf1 ("selinux: Revalidate invalid inode security labels")
>
>
> =========================================================================================
> 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:
>   6f3be9f562e3027c77bc4482ccf2cea8600a7f74
>   5d226df4edfa0eb1e689e7ac2741cf261ff7cbf1
>
> 6f3be9f562e3027c 5d226df4edfa0eb1e689e7ac27
> ---------------- --------------------------
>          %stddev     %change         %stddev
>              \          |                \
>       2086 ±  0%     -10.1%       1876 ±  0%  unixbench.score
>       7.79 ±  0%     -10.2%       7.00 ±  1%  time.user_time
>      33404 ±117%   +9470.5%    3196941 ±173%  latency_stats.max.wait_on_page_bit.__filemap_fdatawait_range.filemap_fdatawait_keep_errors.sync_inodes_sb.sync_inodes_one_sb.iterate_supers.sys_sync.entry_SYSCALL_64_fastpath
>      18934 ± 34%     -82.8%       3252 ± 73%  latency_stats.sum.rpc_wait_bit_killable.__rpc_execute.rpc_execute.rpc_run_task.nfs4_call_sync_sequence.[nfsv4]._nfs4_proc_access.[nfsv4].nfs4_proc_access.[nfsv4].nfs_do_access.nfs_permission.__inode_permission.inode_permission.link_path_walk
>      57519 ±100%   +5478.5%    3208706 ±172%  latency_stats.sum.wait_on_page_bit.__filemap_fdatawait_range.filemap_fdatawait_keep_errors.sync_inodes_sb.sync_inodes_one_sb.iterate_supers.sys_sync.entry_SYSCALL_64_fastpath
>      13414 ± 33%     +49.4%      20036 ±  8%  numa-meminfo.node0.Active(anon)
>      13399 ± 33%     +49.0%      19963 ±  7%  numa-meminfo.node0.AnonPages
>      11624 ± 38%     -52.7%       5495 ± 18%  numa-meminfo.node1.Active(anon)
>      11518 ± 38%     -52.6%       5457 ± 17%  numa-meminfo.node1.AnonPages
>       1641 ± 50%     -53.8%     757.75 ± 15%  numa-meminfo.node1.PageTables
>       3353 ± 33%     +49.2%       5004 ±  8%  numa-vmstat.node0.nr_active_anon
>       3349 ± 33%     +49.0%       4991 ±  7%  numa-vmstat.node0.nr_anon_pages
>       2904 ± 38%     -52.7%       1374 ± 18%  numa-vmstat.node1.nr_active_anon
>       2878 ± 38%     -52.6%       1365 ± 17%  numa-vmstat.node1.nr_anon_pages
>     410.00 ± 50%     -53.9%     189.00 ± 15%  numa-vmstat.node1.nr_page_table_pages
>      14760 ±  2%    +207.2%      45336 ± 65%  numa-vmstat.node1.numa_other
>
>
> ivb42: Ivytown Ivy Bridge-EP
> Memory: 64G
>
>
>
>                                   unixbench.score
>
>   2150 ++-------------------------------------------------------------------+
>        |                                                                    |
>   2100 ++              .*..*.*..                                            |
>        |          .*..*         *.*..*.                   .*.*..*.*         |
>        *.*..*.*..*                     *..*.*.*..*.*..*.*.                  |
>   2050 ++                                                                   |
>        |                                                                    |
>   2000 ++                                                                   |
>        |                                                                    |
>   1950 ++                                                                   |
>        |                                                                    |
>        O O  O O  O      O    O  O O  O O  O O O                             |
>   1900 ++          O  O    O                     O O  O O  O O  O O         |
>        |                                                             O O  O O
>   1850 ++-------------------------------------------------------------------+
>
>
>         [*] 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,
> Ying Huang
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