[mythtv] Increased cpu usage frontend with .15 and up
James Meyer
james.meyer at operamail.com
Mon May 31 10:08:07 EDT 2004
On Sunday 30 May 2004 23:32, Isaac Richards wrote:
> On Sunday 30 May 2004 11:50 pm, James Meyer wrote:
> > While watching pre-recorded television mythfrontend cpu usage seems to
> > jump significantly about 20-30 minutes into the viewing. Normal usage for
> > me is 20% for one frontend thread and the rest of the mythfrontend threads
> > consume less then 2%. Twenty minutes into the recording two frontend
> > threads jump to 45% usage each, which will cause prebuffering pauses.
> > Sometimes just moving back to the menu will fix it, other times I need to
> > restart the frontend. I do not believe this is the "preview live
> > recordings" bug as it happens with or without that option turned off. Also
> > this problem did not occur under .14 or cvs about a week before .15's
> > release.
>
> Only thing weird in this bt is that it seems to be loading the preview image
> from disk, and it shouldn't be doing that. I've just added code to CVS (the
> release-0-15-1 branch, will be merged in to HEAD after I do a release) to try
> to keep that from happening.
>
> If that doesn't fix it, you'll need to do some more debugging. One thing that
> would be of help would be to note which threads are using excessive CPU
> before breaking in gdb, so I can match up what thread's doing the extra work.
>
> Isaac
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I checked out mythtv from the release-0-15-1 branch, so far it appears to be good.
Four hours of pre-recorded shows and not a single hiccup during playback.
Just in case I will continue to run mythfrontend under gdb, but for now it looks to be fixed.
-james
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