https://bugs.freedesktop.org/show_bug.cgi?id=44536
Bug #: 44536 Summary: [r300g] bisected - performance regression on 0ad Classification: Unclassified Product: Mesa Version: git Platform: x86 (IA32) OS/Version: Linux (All) Status: NEW Severity: normal Priority: medium Component: Drivers/DRI/r300 AssignedTo: dri-devel@lists.freedesktop.org ReportedBy: fabio.ped@libero.it CC: maraeo@gmail.com
This commit [1] lowers 0 A.D. performance from ~28 fps to ~20 fps, confirmed with LIBGL_SHOW_FPS=1 mesa variable and with in game FPS counter. This is on 0ad alpha 8 on default Oasis map. Tested with current mesa git up to e60daf7 with and without the [1] commit reverted.
The card is: r300: DRM version: 2.9.0, Name: ATI RV530, ID: 0x71c5, GB: 1, Z: 2 r300: GART size: 509 MB, VRAM size: 256 MB r300: AA compression RAM: YES, Z compression RAM: YES, HiZ RAM: YES
[1] http://cgit.freedesktop.org/mesa/mesa/commit/?id=93f4e3cb6c1ca303ee1f5c2a249...
commit 93f4e3cb6c1ca303ee1f5c2a2491a8eff33f2633 Author: Marek Olšák maraeo@gmail.com Date: Sat Dec 24 08:15:40 2011 +0100
winsys/radeon: move managing GEM domains back to drivers
This partially reverts commit 363ff844753c46ac9c13866627e096b091ea81f8.
It caused severe performance drops in Nexuiz. Reported by Phoronix.
Tested by me on r300g and by IRC people on r600g.
https://bugs.freedesktop.org/show_bug.cgi?id=44536
--- Comment #1 from Marek Olšák maraeo@gmail.com 2012-01-06 13:54:57 PST --- If I revert that commit, Nexuiz will be slow again. I can't do that.
https://bugs.freedesktop.org/show_bug.cgi?id=44536
Marek Olšák maraeo@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Component|Drivers/DRI/r300 |Drivers/Gallium/r300
https://bugs.freedesktop.org/show_bug.cgi?id=44536
--- Comment #2 from Fabio Pedretti fabio.ped@libero.it 2012-01-07 03:51:35 PST --- That's fair. But would be eventually possible to improve it to get max performance on both games?
https://bugs.freedesktop.org/show_bug.cgi?id=44536
GitLab Migration User gitlab-migration@fdo.invalid changed:
What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |MOVED Status|NEW |RESOLVED
--- Comment #3 from GitLab Migration User gitlab-migration@fdo.invalid --- -- GitLab Migration Automatic Message --
This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.
You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/mesa/mesa/issues/339.
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