http://bugs.freedesktop.org/show_bug.cgi?id=14696
Summary: [i965 Openarena] openarena performance drops by 22%
Product: DRI
Version: XOrg CVS
Platform: Other
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: high
Component: DRM modules
AssignedTo: [EMAIL PROTECTED]
ReportedBy: [EMAIL PROTECTED]
CC: [email protected]
System Environment:
--------------------------
--Platform: Q965
--Architecture(32-bit,64-bit,compatiblity): 32-bit
--2D driver:
commit 6935c732c351585f31e2094c4201a00e3d5529b3
--3D driver:
commit 9bd2cb7f90ac434ec5be7d388f899976bf902dc1
--Xserver:
commit aec0d06469a2fa7440fdd5ee03dc256a68704e77
--Drm:
commit e87cec19687089f9f268ec0eb81b57e6fb8de6a9
--Kernel:
2.6.23
Bug detailed description:
-------------------------
The last time I run Openarena benchmark, it get performance at about 104 FPS
but now it is at about 81 FPS, drops by about 22%
and seems it's introduced by following 2 DRM commits:
commit e87cec19687089f9f268ec0eb81b57e6fb8de6a9
Author: Thomas Hellstrom <thomas-at-tungstengraphics-dot-com>
Date: Tue Feb 26 10:47:05 2008 +0100
[i915] Relocation fixes.
commit 56bb29cf37c27b283efcd1a32d3583393e5208ea
Author: Thomas Hellstrom <thomas-at-tungstengraphics-dot-com>
Date: Tue Feb 26 00:01:09 2008 +0100
Make the execbuffer code reasonably safe against errors.
In particular -EAGAINs, which should be common during Xserver operation.
Also handle the fence creation failure case.
Reproduce steps:
----------------
1. start X
2. run openarena benchmark according to
http://dri.freedesktop.org/wiki/Benchmarking
Current result:
----------------
the performance now is at about 81 FPS
Expected result:
----------------
the performance now should be at about 104 FPS
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