https://bugs.freedesktop.org/show_bug.cgi?id=75083
Priority: medium
Bug ID: 75083
Assignee: mesa-dev@lists.freedesktop.org
Summary: [IVB/HSW bisected]padman and Smokin-Guns performance
reduced ~10%
Severity: normal
Classification: Unclassified
OS: All
Reporter: jinxianx....@intel.com
Hardware: Other
Status: NEW
Version: unspecified
Component: Other
Product: Mesa
Created attachment 94200
--> https://bugs.freedesktop.org/attachment.cgi?id=94200&action=edit
xorg.0.log on commit d8c7740ddabeb456243e40dc3cf0e86c7fca09d0
------------------------------------------------
Platform: IVB/HSW
Mesa: (10.1)git-62a3588
Xserver: xorg-server-1.14.5
Xf86_video_intel: (master)2.99.910-3 git-5142d1c
Cairo: (master)git-4144307
Kernel: (drm-intel-nightly) efb4a6a66f8de821515c8a2a5571d9ebc251dbd5
Bug detailed description:
----------------------------------------------
Padman and Smokin-Guns performance reduced ~10% on IVB/HSW. The problem exists
on both Raw X and gnome-session. Please see the Xorg.0.log.
The bug exist on Mesa 10.1 and master branch,not on Mesa 10.0 branch.
It’s a Mesa regression, bisecting show that the first bad commit is:
d8c7740ddabeb456243e40dc3cf0e86c7fca09d0
Author: Kenneth Graunke <kenn...@whitecape.org>
Date: Wed Jan 15 10:08:38 2014 -0800
i965: Support 32 texture image units on Haswell+.
Performance
--------------------------------------------------------------------
git- 5a51a26 git- d8c7740
padman 263.33 239.1
Smokin-Guns 189.97 175.1
Reproduce steps:
---------------------------------------------
1, xinit&
2, vblank_mode=0 ./smokinguns.x86_64 +set r_fullscreen 1 +timedemo 1 +set
demodone "quit" +set demoloop1 "demo pts; set nextdemo vstr demodone" +vstr
demoloop1 +set r_customwidth 1920 +set r_customheight 1080
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