Comment # 60
on bug 82050
from Andy Furniss
(In reply to comment #59) > (In reply to comment #58) > > (In reply to comment #57) > > > I'm trying drm-next-3.18 and mesa git and many unreal engine demos are still > > > broken like this: > > > https://www.youtube.com/watch?v=NvgA9_B0dMo > > > > Are you sure that's directly related to the Unigine Heaven stuttering > > discussed in this report? E.g., does reverting the Mesa commit in question > > help, or do you see similar symptoms in the Gallium HUD? > > It does look like the same symptoms. Only rare and short hangs in unigine > heaven, but frequent hangs of ~1-2 sconds in unigine valley. The HUD shows > that these hangs mostly correlate with jumps in vram/gtt usage. > > Is the mesa commit in question 150ac07b855b5c5f879bf6ce9ca421ccd1a6c938? If > so, it doesn't revert cleanly anymore, but I can have a look if I can > manually see how to do it. Some Unreal are OK for me after a glitchy start. I can reproduce what you see with Scifi hallway and Elemental - the latter is very bad, the former did come good after a while. I hadn't "seen" these two before today, as in the past they just bailed with an llvm error. I'll try, when I have time, to see if they are better with the revert.
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