[mythtv-users] More XvMC data points

[Leif Huhn]

Two ideas:

1. MythTV 0.20 has a bug where it renders a blank OSD with XvMC all
the time even when the OSD isn't up, and renders the OSD twice when
it's actually up.  This can push you over the ability to play
smoothly.  Either

A. upgrade to the latest SVN   OR
B. Download 0.20-fixes, apply SVN changeset 11327, and recompile

For me, I still have problems when the real OSD is up, but that's not
a huge deal.  At least it works for playing the program.

2. As for the spikes, I've also noticed that the X spikes seem to go
away if I renice X to a niceness of 1.  The spikes seem more likely to
happen while commercial flagging or transcoding, so you might want to
set those to only run while you're asleep or at work, etc.

Leif

On Wed, Nov 29, 2006 at 05:21:59PM -0800, Mark Chang wrote:
> On 11/29/06, Michael Tiller <michael.tiller at gmail.com> wrote:
> > Just out of curiosity...when you say 65-75% CPU utilization, how is that
> > partitioned between the X server and the frontend?  I ask because if I try
> > and watch without XvMC on my system, the X server is something like 30% and
> > the frontend is like 70%.  I'm wondering if this load on the X server can be
> > avoided somehow.  Then I might have a chance to watch HD natively.
> 
> When I say 65% I mean mythfrontend takes that much. X is pretty
> minimal *when things are working right*.
> 
> Occasionally, the X server will bust out 30-40% CPU load for no reason
> and things will totally crap out in terms of HD playback. I have to
> restart X (log out/log in) for it to get cleared up. I am chalking
> this up to weird driver business. I will be upgrading from the 87xx
> series in Ubuntu Edgy to the latest beta to see if it makes things
> better.
> 
> Mark
> 
> -- 
> Mark L. Chang
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