[Bug 74335] [UVD] vdpau has terrible performance on radeonsi (HD 7950)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=74335

--- Comment #10 from Andy Furniss <adf.lists at gmail.com> ---
That looks normal, I have that sample and it's 1444 frames / 60Hz = 24 seconds.

You can't really turn off vsync for vdpau and mplayer doesn't do gl interop.

Cpu times can mislead if cpufreq on_demand is in use as you don't know what
freq the cores are in.

UVD/powerplay is tuned for playback (at least on recent GPUs) if using with eg.
ffmpeg you can get more perf by forcing GPU clocks to high.

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