http://bugzilla.kernel.org/show_bug.cgi?id=13713
--- Comment #5 from Eric Anholt <e...@anholt.net> 2009-08-03 20:37:02 ---
Mesa fix (yes, our mesa driver was really buggy to not have behavior something
like this commit):
commit 0828579a658af01a64b5e699175dc9bbbedcd685
Author: Eric Anholt <e...@anholt.net>
Date: Tue Jul 21 11:23:18 2009 -0700
intel: Wait on the last swapbuffers to complete before queuing a new one.
This fixes jerkiness in doom3 and other apps since the kernel change to
throttle less absurdly, which led to a thundering herd of frames.
Because this is a rather minimal fix, there is at least one downside: If
the whole scene completes in one batchbuffer, we'll end up stalling the
GPU.
Thanks to Michel Dänzer for suggesting using glFlush to signal frame end
instead of going to all the effort of adding a new DRI2 extension.
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