Bug 72019 - [HSW mobile GT3e] GpuTest v0.5 triangle performance fluctuate by ~45% enabling gnome-session
Summary: [HSW mobile GT3e] GpuTest v0.5 triangle performance fluctuate by ~45% enablin...
Status: VERIFIED FIXED
Alias: None
Product: Mesa
Classification: Unclassified
Component: Drivers/DRI/i965 (show other bugs)
Version: unspecified
Hardware: All Linux (All)
: medium normal
Assignee: Ian Romanick
QA Contact: Intel 3D Bugs Mailing List
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2013-11-26 05:25 UTC by zhoujian
Modified: 2014-11-26 02:40 UTC (History)
3 users (show)

See Also:
i915 platform:
i915 features:

Attachments

Description zhoujian 2013-11-26 05:25:21 UTC 
System Environment:       
----------------------------------------------
Platform: HSW mobile GT3e
Libdrm:(master)libdrm-2.4.49
Mesa:(master)90d185544c897ca0b4c3c677fed4290330bb0706
Xf86_video_intel:(master)2.99.906-28-g12e974c7bc8c85
Cairo:(master)31eff5c6eb57ad379689748fd8c60a5ffe0ba481
Libva:(staging)9aa8530ce272dc844428b7273afe7d4f0aaf391d
Libva_intel_driver: (staging)34627c96f331f7a344270c3d51b634f5f166073e
Kernel:(drm-intel-nightly) 164a4cb4c1431a0689f85507868356fae24da638

Bug detailed description:
-----------------------------------------------
GpuTest v0.5 triangle fluctuates by ~45% on HSW mobile GT3e enabling gnome-session. It works OK with Raw X on HSW mobile. The problem doesn’t exist on IVB/HSW-D enabling gnome-session.
It’s not a regression. The problem has existed since running GpuTest v0.5 triangle on HSW mobile GT3e.

Performance
--------------------------------------------------------------------
Test on  HSW mobile GT3e enabling gnome-session
　	                     Raw X(xinit)	   gnome-session
GpuTest v0.5 triangle	1330,1286,1343	   1349,921,750

Reproduce steps:
---------------------------------------------
1, xinit&
2. gnome-session
3 ./GpuTest /test=triangle /width=1920 /height=1080 /fullscreen /benchmark /no_scorebox
Comment 1 meng 2014-11-26 02:40:02 UTC 
The issue is fixed on upstream as below,
Mesa:(master)b69c7c5dac4e2615e89cef773173484421830a8f
Xserver:(master)xorg-server-1.16.99.901-3-g63bb5c5ef16edf6521797
Xf86_video_intel:(master)2.99.916-145-g6c2707d7bbc0ebb422be66618
Kernel:  (drm-intel-nightly)git-ab4b25.

Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.