[mythtv-users] Stuttering sound and 100% cpu after channel changes
Jeppe N. Madsen
jeppenm at worldonline.dk
Tue Feb 10 04:11:01 EST 2004
On Sun, 08 Feb 2004, J. Donavan Stanley wrote:
> Jeppe N. Madsen wrote:
> >I'm currently trying out mythtv and are testing on some old
> >hardware before committing to a full setup.
> >I've observed the following: If I watch livetv and let the livetv
> >buffer fillup (I've set it to 2gb so approx 1 hour) and change
> >channel, the sound starts to stutter and the backend cpu usage goes
> >to 100%. The frontend logs some "prebuffer wait timed out"
> >messages. Changing channel again improves the situation slightly,
> >but the backend still uses more than 50% cpu (usally 98% idle
> >during livetv). It seems the only solution is to exit livetv and
> >start again.
> Changing the channel starts a new ringbuffer. Sounds like your
> disk/file system might have issues deleting large files.
I believe the ringbuffer _file_ is not deleted on channel changes, only
when you exit live tv. As Isaac noted, this was a bug and it has been
fixed in CVS.
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