Comment # 12
on bug 95474
from Marek Olšák
(In reply to Jan Ziak from comment #9) > Created attachment 124063 [details] > kcachegrind screenshot: _mesa_FenceSync > > I ran callgrind on Bioshock with mesa-git. > > Callgrind instrumentation was enabled only when the Bioshock benchmark was > rendering frames from the game. The benchmark graphics quality was set to > Medium. > > The screenshot I am sending indicates that Bioshock expects a faster > _mesa_FenceSync implementation. I wouldn't trust callgrind, because it runs on a CPU emulator. The proper way to profile this is to build Mesa with -fno-omit-frame-pointer and use sysprof, which is very easy to use. Sysprof can also save the results to disk.
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