[Bug 82050] R9270X pyrit benchmark perf regressions with latest kernel/llvm

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=82050

--- Comment #34 from Andy Furniss <adf.lists at gmail.com> ---
(In reply to comment #29)
>  I also reported on irc Valley stutter on Kabini, but now i am somhow
> against reverting because performance suffer with reverting in other games.
> 
>  One other reason simply because i tested it first time on Windows today and
> there i have stutter even worse then then any case we have here :D. And i
> did't know that :D DX11/DX9/OpenGL any mode all stutter a lot. Our worst
> combination is a lot smoother than with Catalyst on Windows :).

I tried on Windows with the same settings and you are right that there are
stutters. For me they are about 10x shorter than my best Linux case, which
means that some effectively don't exist and the ones that do are more like a
frame or two. It does I guess illustrate that Valley may be doing something
stupid - some are in the same places I see on Linux.

>  So question is, is there other stuter examples than Unigine Valley?

Will have to test more - there are some with Initially with Unreal Reflections.

I am using a pure 64bit setup, which means I don't get to test steam or etqw -
you may have a point that if only Valley is really bad and other things gain
Valley may be an exception that could be sacrificed.

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