https://bugs.freedesktop.org/show_bug.cgi?id=28550
Summary: [UMS vs KMS]: Openarena performance drops by half with
KMS enabled
Product: Mesa
Version: unspecified
Platform: x86 (IA32)
OS/Version: other
Status: NEW
Severity: major
Priority: medium
Component: Drivers/DRI/R600
AssignedTo: dri-devel at lists.freedesktop.org
ReportedBy: hysvats at gmail.com
Created an attachment (id=36284)
--> (https://bugs.freedesktop.org/attachment.cgi?id=36284)
Xorg.log
KMS Driver Stack details :
=========================
1) Kernel-2.6.32-21-generic-pae
2) Libdrm-2.4.19
3) Mesa-7.8-rc2
4) Xorg-server-1.7.4
5) ddx: xf86-video-ati-6.13.0
System Environment :
===================
O.S. - Ubuntu-10.04(32bit)
Asic - RV790XT
CPU - Intel(R) Core(TM)@ 1.86GHz
Steps to Reproduce:
===================
1) Install Phoronix-test-suite from
http://www.phoronix-test-suite.com/releases/repo/pts.debian/files/phoronix-test-suite_2.6.1_all.deb
2) Install openarena game
phoronix-test-suite install openarena
3) Run the game with 1920x1080
phoronix-test-suite run openarena
Observation :
=============
1) FPS observed is 60.2
2) Disable KMS and run the test again with the same resolution
With UMS FPS is 118.4
3) Bloom option is disabled before running both the tests.
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