[Bug 36596] Major 2D performance bottleneck (most noticeable with compiz)

https://bugs.freedesktop.org/show_bug.cgi?id=36596

--- Comment #7 from Jason Cassell bluesloth600@gmail.com 2011-04-29 22:02:20 PDT --- Compiz's sync to vblank option was already off. Turning it on hung compiz, and I had to switch to a VT and kill -9 it.

That reminds me, with the gallium drivers I have to have vblank_mode set to something in .drirc, otherwise everything using OpenGL hangs. With the classic drivers I didn't even need a .drirc. vblank_mode is currently set to 1.

Turning off EnablePageFlip and/or SwapbuffersWait doesn't help.