https://bugs.freedesktop.org/show_bug.cgi?id=42117
--- Comment #3 from Michal majkell10@interia.pl 2011-10-24 08:56:25 PDT --- Well, yes, ums is about 2x faster then kms.
I think the problem is somewhere in textures. Lowering texture quality in openarena, fps jumps from 5 to 60. The same with etracer, with low res textures copied from version 3.5, fps jumps from 3 to 30.