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

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

--- Comment #3 from Michel Dänzer michel@daenzer.net 2011-04-27 03:28:43 PDT --- (In reply to comment #3)

With compiz, making a new window or resizing a window makes the framerate drop to 2 fps for about 5 or 6 seconds.

Does that involve wobbly windows or any other effects?

I've had this problem with the Debian Mesa packages since they switched to gallium, and with git master (as of yesterday) built with and without --enable-gallium-llvm.

Did you double-check that enabling LLVM actually worked?

If that's not the problem, and if the slowness coincides with high CPU usage, a profile from sysprof or oprofile might give some ideas.