[Bug 84663] high cpu usage, poor performance in Borderlands 2 with radeonsi, PRIME

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=84663

Christoph Haag <haagch at frickel.club> changed:

           What    |Removed                     |Added
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 Attachment #107328|0                           |1
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--- Comment #2 from Christoph Haag <haagch at frickel.club> ---
Created attachment 107418
  --> https://bugs.freedesktop.org/attachment.cgi?id=107418&action=edit
sysprof

(In reply to Michel Dänzer from comment #1)
> (In reply to Christoph Haag from comment #0)
> > sysprof recording from borderlands 2 only
> 
> Can you create another profile including all processes?
> 
> BTW, if you can make sure that at least Mesa and libdrm are compiled with
> -fno-omit-frame-pointer (after any other compiler flags implying
> -fomit-frame-pointer, such as -O), that might improve the quality of the
> callgraphs in the profile.

Ok, so in my first sysprof profile I had mesa compiled with -O0 -ggdb and
--enable-debug. That was probably overkill, but it had hardly any effect on
perceived performance.

Now this is probably more realistic. mesa is *not* compiled with --enable-debug
and it *is* compiled with with "-Og -ggdb". Also libdrm is compiled with "-Og
-ggdb". If I'm reading this correctly now it unfortunately looks like
Borderlands 2 is consuming most of the CPU time itself now...
It's still the same cpu consumption: 112-114% CPU.

So far I really have only to go on that my cpu should be good enough to not
bottleneck the game this much...

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