[Bug 68805] 48 fps and 50 fps video decoding is stutter on UVD

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=68805

--- Comment #4 from Grigori Goronzy <greg at chown.ath.cx> ---
There are some known performance problems with UVD. I don't believe we know why
it is slower than fglrx yet. Maybe something subtle related to UVD setup.

Tiling is also disabled for UVD surfaces at the moment. This slightly reduces
throughput, especially on GPUs with little memory bandwidth (such as APUs).

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