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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - R9270X pyrit benchmark perf regressions with latest kernel/llvm"
href="https://bugs.freedesktop.org/show_bug.cgi?id=82050#c60">Comment # 60</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - R9270X pyrit benchmark perf regressions with latest kernel/llvm"
href="https://bugs.freedesktop.org/show_bug.cgi?id=82050">bug 82050</a>
from <span class="vcard"><a class="email" href="mailto:adf.lists@gmail.com" title="Andy Furniss <adf.lists@gmail.com>"> <span class="fn">Andy Furniss</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=82050#c59">comment #59</a>)
<span class="quote">> (In reply to <a href="show_bug.cgi?id=82050#c58">comment #58</a>)
> > (In reply to <a href="show_bug.cgi?id=82050#c57">comment #57</a>)
> > > I'm trying drm-next-3.18 and mesa git and many unreal engine demos are still
> > > broken like this:
> > > <a href="https://www.youtube.com/watch?v=NvgA9_B0dMo">https://www.youtube.com/watch?v=NvgA9_B0dMo</a>
> >
> > 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.</span >
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.</pre>
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