[lkp] [genirq/msi] 460ec9d780: 8.5% unixbench.score

[kernel test robot]

FYI, we noticed the below changes on

https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git irq/wire-msi-bridge
commit 460ec9d78057bf462f5b5cd0a140e32252d81405 ("genirq/msi: Make the .prepare callback reusable")


=========================================================================================
compiler/kconfig/rootfs/tbox_group/test/testcase:
  gcc-4.9/x86_64-rhel/debian-x86_64-2015-02-07.cgz/nhm-white2/context1/unixbench

commit: 
  c175e94e50249623f7e0c9dc087798afd2e541ae
  460ec9d78057bf462f5b5cd0a140e32252d81405

c175e94e50249623 460ec9d78057bf462f5b5cd0a1 
---------------- -------------------------- 
         %stddev     %change         %stddev
             \          |                \  
      1421 ±  0%      +8.5%       1543 ±  0%  unixbench.score
  64569793 ±  0%      +7.0%   69093806 ±  0%  unixbench.time.voluntary_context_switches
  18591611 ±114%     -62.0%    7060772 ±104%  latency_stats.avg.nfs_wait_on_request.nfs_updatepage.nfs_write_end.generic_perform_write.__generic_file_write_iter.generic_file_write_iter.nfs_file_write.__vfs_write.vfs_write.SyS_write.entry_SYSCALL_64_fastpath
     25939 ±  4%      -7.2%      24059 ±  5%  softirqs.SCHED
     10.80 ±  1%     +11.5%      12.04 ±  1%  time.user_time
      3971 ± 14%     -18.9%       3220 ±  5%  vmstat.system.in
     60.25 ± 20%     +28.6%      77.50 ± 15%  sched_debug.cfs_rq[0]:/.load_avg
     34.75 ±  6%     +50.4%      52.25 ± 23%  sched_debug.cfs_rq[0]:/.runnable_load_avg
     60.25 ± 20%     +28.6%      77.50 ± 15%  sched_debug.cfs_rq[0]:/.tg_load_avg_contrib
    440.00 ± 15%     +32.9%     584.75 ± 11%  sched_debug.cfs_rq[0]:/.util_avg
     32425 ±  4%     -15.2%      27496 ± 20%  sched_debug.cfs_rq[5]:/.exec_clock
     53.00 ± 16%     +72.6%      91.50 ± 21%  sched_debug.cfs_rq[5]:/.load_avg
     53.00 ± 16%     +73.1%      91.75 ± 21%  sched_debug.cfs_rq[5]:/.tg_load_avg_contrib
     80.25 ± 24%     +28.0%     102.75 ± 14%  sched_debug.cfs_rq[6]:/.load_avg
     37.00 ±  8%     +39.9%      51.75 ± 29%  sched_debug.cfs_rq[6]:/.runnable_load_avg
     80.25 ± 24%     +28.7%     103.25 ± 15%  sched_debug.cfs_rq[6]:/.tg_load_avg_contrib
     36.00 ±  3%     +27.1%      45.75 ± 14%  sched_debug.cpu#0.cpu_load[1]
     36.25 ±  4%     +22.8%      44.50 ±  8%  sched_debug.cpu#0.cpu_load[2]
     35.75 ±  7%     +24.5%      44.50 ±  9%  sched_debug.cpu#0.cpu_load[3]
     35.50 ±  9%     +28.9%      45.75 ± 12%  sched_debug.cpu#0.cpu_load[4]
   2030062 ±  4%     -16.0%    1705635 ±  5%  sched_debug.cpu#1.sched_goidle
     35.00 ± 11%     +14.3%      40.00 ±  5%  sched_debug.cpu#3.cpu_load[0]
     32.75 ± 23%     +25.2%      41.00 ±  4%  sched_debug.cpu#3.cpu_load[2]
     32.50 ± 24%     +29.2%      42.00 ±  6%  sched_debug.cpu#3.cpu_load[3]
     32.00 ± 26%     +34.4%      43.00 ± 10%  sched_debug.cpu#3.cpu_load[4]
     35.50 ± 13%     +18.3%      42.00 ±  5%  sched_debug.cpu#4.cpu_load[4]
     38729 ±  6%     -17.3%      32035 ± 20%  sched_debug.cpu#5.nr_load_updates
   1357857 ± 24%     -46.7%     724368 ± 35%  sched_debug.cpu#5.sched_goidle


nhm-white2: Nehalem
Memory: 4G



                                  unixbench.score

  1700 O+O--OO--------------------------------------------------------------+
       |  O                                                                 |
  1650 ++                                                                   |
       |                                                                    |
  1600 ++      OO                                                           |
       |          OO    O  O    OO O  OO O                                  |
  1550 ++                O  O O     O     O OO O                            |
       |             OO                                                     |
  1500 ++                                                                   |
       |                                                                    |
  1450 ++                                                                   |
       |                 *.**.*.**.**.                              *.**.**.*
  1400 *+**.**.**.**.**.*             **.**.**.**.**.*.**.**.**.**.*        |
       |                                                                    |
  1350 ++-------------------------------------------------------------------+


                       unixbench.time.voluntary_context_switches

  7.6e+07 O+--O-------------------------------------------------------------+
          |O O  O                                                           |
  7.4e+07 ++                                                                |
          |                                                                 |
  7.2e+07 ++       O                                                        |
          |      O                  O     O                                 |
    7e+07 ++        O O   O OO OOO O  OO O  O                               |
          |            O O                   O OO                           |
  6.8e+07 ++                                                                |
          |                                                                 |
  6.6e+07 ++                      .*                                        |
          |                 **.***  *.*                              * .**.*|
  6.4e+07 **. *.* .**.* .* +           *.* .**. *.**. **. *.* .**.* + *     *
          |  *   *     *  *               *    *     *   *   *     *        |
  6.2e+07 ++----------------------------------------------------------------+

	[*] 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
---
LKP_SERVER: inn
LKP_CGI_PORT: 80
LKP_CIFS_PORT: 139
testcase: unixbench
default-monitors:
  wait: activate-monitor
  kmsg: 
  uptime: 
  iostat: 
  vmstat: 
  numa-numastat: 
  numa-vmstat: 
  numa-meminfo: 
  proc-vmstat: 
  proc-stat:
    interval: 10
  meminfo: 
  slabinfo: 
  interrupts: 
  lock_stat: 
  latency_stats: 
  softirqs: 
  bdi_dev_mapping: 
  diskstats: 
  nfsstat: 
  cpuidle: 
  cpufreq-stats: 
  turbostat: 
  pmeter: 
  sched_debug:
    interval: 60
cpufreq_governor: 
default-watchdogs:
  oom-killer: 
  watchdog: 
commit: 460ec9d78057bf462f5b5cd0a140e32252d81405
model: Nehalem
memory: 4G
nr_cpu: 8
hdd_partitions: 
swap_partitions: 
rootfs_partition: 
netconsole_port: 6671
category: benchmark
unixbench:
  test: context1
queue: bisect
testbox: nhm-white2
tbox_group: nhm-white2
kconfig: x86_64-rhel
enqueue_time: 2015-11-23 15:41:21.037230310 +08:00
id: 2ef6fc6d2e09a582e9740c5c45466d2db21dc54a
user: lkp
compiler: gcc-4.9
head_commit: 6e6e68bdb87c92710611a4ab9a9a8e85cfe34100
base_commit: 8005c49d9aea74d382f474ce11afbbc7d7130bec
branch: linux-devel/devel-hourly-2015112221
rootfs: debian-x86_64-2015-02-07.cgz
result_root: "/result/unixbench/context1/nhm-white2/debian-x86_64-2015-02-07.cgz/x86_64-rhel/gcc-4.9/460ec9d78057bf462f5b5cd0a140e32252d81405/0"
job_file: "/lkp/scheduled/nhm-white2/bisect_unixbench-context1-debian-x86_64-2015-02-07.cgz-x86_64-rhel-460ec9d78057bf462f5b5cd0a140e32252d81405-20151123-70997-qe2i1m-0.yaml"
max_uptime: 1310.0200000000002
initrd: "/osimage/debian/debian-x86_64-2015-02-07.cgz"
bootloader_append:
- root=/dev/ram0
- user=lkp
- job=/lkp/scheduled/nhm-white2/bisect_unixbench-context1-debian-x86_64-2015-02-07.cgz-x86_64-rhel-460ec9d78057bf462f5b5cd0a140e32252d81405-20151123-70997-qe2i1m-0.yaml
- ARCH=x86_64
- kconfig=x86_64-rhel
- branch=linux-devel/devel-hourly-2015112221
- commit=460ec9d78057bf462f5b5cd0a140e32252d81405
- BOOT_IMAGE=/pkg/linux/x86_64-rhel/gcc-4.9/460ec9d78057bf462f5b5cd0a140e32252d81405/vmlinuz-4.4.0-rc1-00004-g460ec9d
- max_uptime=1310
- RESULT_ROOT=/result/unixbench/context1/nhm-white2/debian-x86_64-2015-02-07.cgz/x86_64-rhel/gcc-4.9/460ec9d78057bf462f5b5cd0a140e32252d81405/0
- LKP_SERVER=inn
- |2-


  earlyprintk=ttyS0,115200 systemd.log_level=err
  debug apic=debug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100
  panic=-1 softlockup_panic=1 nmi_watchdog=panic oops=panic load_ramdisk=2 prompt_ramdisk=0
  console=ttyS0,115200 console=tty0 vga=normal

  rw
lkp_initrd: "/lkp/lkp/lkp-x86_64.cgz"
modules_initrd: "/pkg/linux/x86_64-rhel/gcc-4.9/460ec9d78057bf462f5b5cd0a140e32252d81405/modules.cgz"
bm_initrd: "/osimage/deps/debian-x86_64-2015-02-07.cgz/lkp.cgz,/osimage/deps/debian-x86_64-2015-02-07.cgz/run-ipconfig.cgz,/osimage/deps/debian-x86_64-2015-02-07.cgz/turbostat.cgz,/lkp/benchmarks/turbostat.cgz,/lkp/benchmarks/unixbench.cgz"
repeat_to: 2
kernel: "/pkg/linux/x86_64-rhel/gcc-4.9/460ec9d78057bf462f5b5cd0a140e32252d81405/vmlinuz-4.4.0-rc1-00004-g460ec9d"
dequeue_time: 2015-11-23 16:42:57.708515091 +08:00
job_state: finished
loadavg: 6.94 3.10 1.18 1/169 4571
start_time: '1448268201'
end_time: '1448268462'
version: "/lkp/lkp/.src-20151120-223843"

Attachment: reproduce.sh
Description: Bourne shell script