[Bug 71448] [UVD] qvdpautest is very slow on radeonsi (HD 7950)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=71448

--- Comment #13 from Christian König <deathsimple at vodafone.de> ---
(In reply to comment #10)
> This is probably related to dpm and gpu clocks - if I run "vblank_mode=0
> glxgears" in parallel with the benchmark the results are significantly
> better for me:
> 
> w/o gears:
> 
> MPEG DECODING (1920x1080): 13 frames/s
> MPEG DECODING (1280x720): 13 frames/s
> H264 DECODING (1920x1080): 12 frames/s
> H264 DECODING (1280x720): 13 frames/s
> 
> with gears:
> 
> MPEG DECODING (1920x1080): 77 frames/s
> MPEG DECODING (1280x720): 118 frames/s
> H264 DECODING (1920x1080): 51 frames/s
> H264 DECODING (1280x720): 92 frames/s 

^^ very valuable comment, thx.

So do I get that right that generation 3D load affects UVD decoding performance
here?

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