linux-kernel - [lkp] [perf/x86/intel/uncore] d6980ef325: -33.2% aim9.brk_test.ops_per

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Date:	Thu, 14 Jan 2016 16:19:56 +0800
From:	kernel test robot <ying.huang@...ux.intel.com>
TO:	Kan Liang <kan.liang@...el.com>
CC:	Ingo Molnar <mingo@...nel.org>
Subject: [lkp] [perf/x86/intel/uncore] d6980ef325: -33.2%
 aim9.brk_test.ops_per_sec

FYI, we noticed the below changes on

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
commit d6980ef32570e2a26e05b1183788f4b70f1f27d0 ("perf/x86/intel/uncore: Add Broadwell-EP uncore support")


=========================================================================================
compiler/cpufreq_governor/kconfig/rootfs/tbox_group/test/testcase/testtime:
  gcc-4.9/powersave/x86_64-rhel/debian-x86_64-2015-02-07.cgz/lkp-bdw-ep1/all/aim9/5s

commit: 
  d3bcd64bbc35076a80c56918c905ddb167d097d8
  d6980ef32570e2a26e05b1183788f4b70f1f27d0

d3bcd64bbc35076a d6980ef32570e2a26e05b11837 
---------------- -------------------------- 
         %stddev     %change         %stddev
             \          |                \  
   2647573 ±  0%     -33.2%    1768444 ±  2%  aim9.brk_test.ops_per_sec
    862.61 ±  0%      -1.9%     845.93 ±  0%  aim9.exec_test.ops_per_sec
    543939 ±  1%     -11.1%     483633 ±  2%  aim9.page_test.ops_per_sec
   5472098 ±  1%      -5.7%    5160540 ±  1%  aim9.time.minor_page_faults
      1300 ± 12%     -21.3%       1023 ± 15%  slabinfo.blkdev_requests.active_objs
      1300 ± 12%     -21.3%       1023 ± 15%  slabinfo.blkdev_requests.num_objs
    650.93 ± 13%     -22.4%     505.41 ± 18%  sched_debug.cfs_rq:/.exec_clock.16
      2224 ± 43%     -44.9%       1225 ± 15%  sched_debug.cpu.nr_switches.48
      0.43 ±410%    -566.7%      -2.00 ±-130%  sched_debug.cpu.nr_uninterruptible.28
      2.57 ±148%    -133.3%      -0.86 ±-236%  sched_debug.cpu.nr_uninterruptible.44
      2229 ± 43%     -44.7%       1232 ± 15%  sched_debug.cpu.sched_count.48
      1009 ± 49%     -45.3%     552.43 ± 13%  sched_debug.cpu.sched_goidle.48
      2851 ± 35%     -47.1%       1507 ± 44%  sched_debug.cpu.ttwu_count.16
    611.86 ± 34%    +117.0%       1327 ± 71%  sched_debug.cpu.ttwu_local.33

lkp-bdw-ep1: Broadwell-EP
Memory: 48G

                               aim9.brk_test.ops_per_sec

  2.7e+06 ++-----------*----*-------------------*--*-*--*-------------------+
  2.6e+06 *+.*.*..*.*.   *.   *..*.*..*.*..*..*           *..*.  .*.*..*.*..*
          |                                                    *.           |
  2.5e+06 ++                                                                |
  2.4e+06 ++                                                                |
  2.3e+06 ++                                                                |
  2.2e+06 ++                                                                |
          |                                                                 |
  2.1e+06 ++                                                                |
    2e+06 ++                                                                |
  1.9e+06 ++                                                                |
  1.8e+06 ++                O      O  O    O  O O  O O  O    O O  O         |
          O  O    O O  O O    O  O      O                 O         O  O    |
  1.7e+06 ++   O                                                            |
  1.6e+06 ++----------------------------------------------------------------+


	[*] 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

View attachment "job.yaml" of type "text/plain" (3496 bytes)

Download attachment "reproduce.sh" of type "application/x-sh" (8086 bytes)