[lkp] [drm/i915] 97f9010af0: No primary result change, -36.2% piglit.time.percent_of_cpu_this_job_got

From: kernel test robot
Date: Mon Mar 21 2016 - 22:51:24 EST


FYI, we noticed that piglit.time.percent_of_cpu_this_job_got -36.2% change with your commit.

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
commit 97f9010af05c15e0b7e6b4ef6ff8cb0ebb7e7715 ("drm/i915: mdelay(10) considered harmful")


=========================================================================================
compiler/group/kconfig/rootfs/tbox_group/testcase:
gcc-4.9/igt-037/x86_64-rhel/debian-x86_64-2015-02-07.cgz/snb-drag/piglit

commit:
57a2af6bbc7a4f1b145cc216c34476402836f0b8
97f9010af05c15e0b7e6b4ef6ff8cb0ebb7e7715

57a2af6bbc7a4f1b 97f9010af05c15e0b7e6b4ef6f
---------------- --------------------------
fail:runs %reproduction fail:runs
%stddev %change %stddev
\ | \
69.00 ± 0% -36.2% 44.00 ± 0% piglit.time.percent_of_cpu_this_job_got
44.77 ± 0% -36.0% 28.66 ± 0% piglit.time.system_time
38337 ± 0% +4.1% 39904 ± 0% piglit.time.voluntary_context_switches
69.00 ± 0% -36.2% 44.00 ± 0% time.percent_of_cpu_this_job_got
44.77 ± 0% -36.0% 28.66 ± 0% time.system_time


snb-drag: Sandy Bridge
Memory: 6G



piglit.time.system_time

46 ++---------------------------------------------------------------------+
*..*..*..*..*..*..*..*..*..*..*..*..*.*..*..*..*..*..*..*..*..*..* |
44 ++ |
42 ++ |
| |
40 ++ |
38 ++ |
| |
36 ++ |
34 ++ |
| |
32 ++ |
30 ++ |
O O O O O O O O O O O O O O O O O O O O O O O O O
28 ++---------------------------------------------------------------------+


piglit.time.percent_of_cpu_this_job_got

70 *+----*--*--*--*--*--*--*--*--*--*--*-*--*--*--*--*--*--*--*--*--*-----+
| .. |
65 ++ * |
60 ++ |
| |
55 ++ |
50 ++ |
| |
45 ++ O O O O
40 ++ |
| O O O O O O O O O O |
35 ++ |
30 ++ |
| |
25 O+-O--O--O--O--O--O--O--O--O--O----------------------------------------+


piglit.time.voluntary_context_switches

46000 ++------------------------------------------------------------------+
O O O O O O O O O O O |
45000 ++ |
44000 ++ |
| |
43000 ++ |
| |
42000 ++ |
| |
41000 ++ O O O O O O O O O O |
40000 ++ |
| O O O O
39000 ++ |
*..*..*..*.*..*..*..*..*..*.*..*..*..*..*..*.*..*..*..*..*..*.* |
38000 ++------------------------------------------------------------------+


[*] 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
---
LKP_SERVER: inn
LKP_CGI_PORT: 80
LKP_CIFS_PORT: 139
testcase: piglit
default-monitors:
wait: activate-monitor
kmsg:
heartbeat:
interval: 10
default-watchdogs:
oom-killer:
watchdog:
commit: 97f9010af05c15e0b7e6b4ef6ff8cb0ebb7e7715
model: Sandy Bridge
memory: 6G
hdd_partitions: "/dev/disk/by-id/ata-WDC_WD20EZRX-00D8PB0_WD-WCC4M6XASAKV-part5 /dev/disk/by-id/ata-WDC_WD20EZRX-00D8PB0_WD-WCC4M6XASAKV-part6
/dev/disk/by-id/ata-WDC_WD20EZRX-00D8PB0_WD-WCC4M6XASAKV-part7 /dev/disk/by-id/ata-WDC_WD20EZRX-00D8PB0_WD-WCC4M6XASAKV-part8
/dev/disk/by-id/ata-WDC_WD20EZRX-00D8PB0_WD-WCC4M6XASAKV-part9 /dev/disk/by-id/ata-WDC_WD20EZRX-00D8PB0_WD-WCC4M6XASAKV-part10"
swap_partitions:
rootfs_partition: "/dev/disk/by-id/ata-WDC_WD20EZRX-00D8PB0_WD-WCC4M6XASAKV-part2"
netconsole_port: 6648
category: functional
timeout: 30m
piglit:
group: igt-037
queue: bisect
testbox: snb-drag
tbox_group: snb-drag
kconfig: x86_64-rhel
enqueue_time: 2016-03-20 04:39:05.929817500 +08:00
compiler: gcc-4.9
rootfs: debian-x86_64-2015-02-07.cgz
id: 05a54d2da294244f0d2e01f47ea5f91d6310033e
user: lkp
head_commit: eb128a67a1a3dd9192f95c388690eec7173b137d
base_commit: b562e44f507e863c6792946e4e1b1449fbbac85d
branch: linux-devel/devel-hourly-2016031823
result_root: "/result/piglit/igt-037/snb-drag/debian-x86_64-2015-02-07.cgz/x86_64-rhel/gcc-4.9/97f9010af05c15e0b7e6b4ef6ff8cb0ebb7e7715/1"
job_file: "/lkp/scheduled/snb-drag/bisect_piglit-igt-037-debian-x86_64-2015-02-07.cgz-x86_64-rhel-97f9010af05c15e0b7e6b4ef6ff8cb0ebb7e7715-20160320-71245-1irelu4-1.yaml"
nr_cpu: "$(nproc)"
max_uptime: 1800
initrd: "/osimage/debian/debian-x86_64-2015-02-07.cgz"
bootloader_append:
- root=/dev/ram0
- user=lkp
- job=/lkp/scheduled/snb-drag/bisect_piglit-igt-037-debian-x86_64-2015-02-07.cgz-x86_64-rhel-97f9010af05c15e0b7e6b4ef6ff8cb0ebb7e7715-20160320-71245-1irelu4-1.yaml
- ARCH=x86_64
- kconfig=x86_64-rhel
- branch=linux-devel/devel-hourly-2016031823
- commit=97f9010af05c15e0b7e6b4ef6ff8cb0ebb7e7715
- BOOT_IMAGE=/pkg/linux/x86_64-rhel/gcc-4.9/97f9010af05c15e0b7e6b4ef6ff8cb0ebb7e7715/vmlinuz-4.4.0-rc6-00009-g97f9010
- max_uptime=1800
- RESULT_ROOT=/result/piglit/igt-037/snb-drag/debian-x86_64-2015-02-07.cgz/x86_64-rhel/gcc-4.9/97f9010af05c15e0b7e6b4ef6ff8cb0ebb7e7715/1
- 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-4.9/97f9010af05c15e0b7e6b4ef6ff8cb0ebb7e7715/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/piglit.cgz,/lkp/benchmarks/piglit.cgz"
linux_headers_initrd: "/pkg/linux/x86_64-rhel/gcc-4.9/97f9010af05c15e0b7e6b4ef6ff8cb0ebb7e7715/linux-headers.cgz"
repeat_to: 2
kernel: "/pkg/linux/x86_64-rhel/gcc-4.9/97f9010af05c15e0b7e6b4ef6ff8cb0ebb7e7715/vmlinuz-4.4.0-rc6-00009-g97f9010"
dequeue_time: 2016-03-20 04:57:34.541834135 +08:00
job_state: finished
loadavg: 0.75 0.34 0.13 1/126 663
start_time: '1458421101'
end_time: '1458421169'
version: "/lkp/lkp/.src-20160318-155012"
2016-03-20 04:56:22 piglit run igt -t igt/kms_cursor_crc/cursor-128-offscreen /tmp/lkp/piglit-results
2016-03-20 04:57:30 piglit summary console /tmp/lkp/piglit-results/results.json