https://bugs.freedesktop.org/show_bug.cgi?id=44523 Bug #: 44523 Summary: nexuiz perf regression since u_vbuf: implement another upload codepath which unrolls indices Classification: Unclassified Product: Mesa Version: git Platform: x86 (IA32) OS/Version: Linux (All) Status: NEW Severity: normal Priority: medium Component: Drivers/Gallium/r600 AssignedTo: dri-devel@xxxxxxxxxxxxxxxxxxxxx ReportedBy: lists@xxxxxxxxxxxxxxxxxxxxxxx d-r-t kernel, HD4890. Since - commit ce44bae366ade59fb2dbdfbfe5a1ab8d24518a57 Author: Marek Olšák <maraeo@xxxxxxxxx> Date: Tue Jan 3 22:01:03 2012 +0100 u_vbuf: implement another upload codepath which unrolls indices Improves performance from cca 1 fps to 23 fps in Cogs. This new codepath is not always used, instead, there is a heuristic which determines whether to use it. Using translate for uploads is generally slower than what we have had already, it's a win only in a few cases. I get quite a noticeable perf regression running demo1 in nexuiz. Other games (openarena,ut2004 demo, etqw) seem unaffected 91.2740132 fps, one-second fps min/avg/max: 50 99 231 (90 seconds) to 55.6802612 fps, one-second fps min/avg/max: 19 69 231 (90 seconds) Sometimes I saw a couple of short (1/4 sec) stalls as well, which gave worse results, above was without stalls. -- Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
