[MPlayer-users] VDPAU performance with an Asus AT3N7A-I

[Uoti Urpala]

On Mon, 2009-12-21 at 23:02 +0100, Reimar Döffinger wrote:
> With VDPAU -benchmark numbers are rather misleading.
> Try normal playback and give these numbers from the status line:
> 
> On Mon, Dec 21, 2009 at 10:52:44PM +0100, Richard Hartmann wrote:
> > V: 208.5   0/  0 14% 33%  0.0% 0 0
>                    ^^^^^^^
> (the first two % numbers).

I think the overall benchmark runtime (decoding 208 seconds of video in
103 realtime seconds) tells more reliable information than the status
line numbers. The status line numbers don't really tell anything more
about overall time usage. They could be used to get more localized
information about particularly hard to decode parts, but getting that
information out of them is a bit tricky - at least you'd need to reset
them by seeking. They don't tell anything more about small-scale
frame-to-frame variation. The status line values can be either too
optimistic (call times measurable by MPlayer are very short, even though
actual hardware decoding in the background takes longer) or pessimistic
(delays waiting for page flips for example - heavier to decode video
wouldn't necessarily take more overall time, it'd only shift from
waiting to actual work).