[mythtv] EPIA M10k - XvMC: Very high CPU (even when paused!!)

[Daniel Kristjansson]

On Thu, 2007-01-18 at 09:57 +0000, Stuart Auchterlonie wrote:
> On Wed, Jan 17, 2007 at 11:38:26PM +0000, Colin Guthrie wrote:
> > Terry Barnaby wrote:
> > > Note that there was a bug in MythTv 0.20 that caused the OSD to be on 
> > > for Interactive TV. This caused 70% + CPU usage. This was fixed in the 
> > > CVS version. There is an earlier thread on this issue but I can remember 
> > > the name ...
> > 
> > Yeah thanks for pointing this out but I generally always use the SVN
> > version.
> > 
> > The bug (I've not 100% confirmed it yet) seems to be related to video
> > previews before playing a recording. This seems to have a race condition
> > that sometimes (usually?) prevents the full screen playback using XvMC
> > VLD extensions and falls back to regular decoding which kills
> > performance quite nicely!
> > 
> > Turning off video previews fixes things for now.
> > 
> 
> Wonder if it related to the race i've seen once or twice
> where multiple preview threads end up being created and that
> hammers performance...

If so it should be fixed by the video preview code in
mythtv-vid. I think the "not 100% confirmed it yet" refers
to not having tested this in the mythtv-vid branch yet.

-- Daniel