[mythtv-users] Mythvideo performance

[Ryan Steffes]

On 6/15/06, Michael T. Dean <mtdean at thirdcontact.com> wrote:
>
> On 06/15/2006 04:14 PM, Ryan Steffes wrote:
> > > What's noticeable mean to you?  One or two seconds, or 5 seconds,
> > > or 10 seconds, or ...
> >
> >  Average, 20 to 30 seconds, sometimes over minute.
>
> That's definitely not the in-memory sort.  I never had that kind of
> issue when I was using mine without it (actually, the difference from
> the in-memory sort is not very noticeable).
>
> >  It only does this
> >  the first time I go into MythVideo, then seems faster until I haven't
> >  gone in a while, then pauses again.  I'm assuming it has to do with
> >  disk access.
>
> Hmmm...  Idea (see below).
>
> >  I also get a similarly long delay when going into My
> >  Recordings but I always blamed this on building previews, since it
> >  stutters (for lack of a better word) when flipping past a newly
> >  recorded show.
>
> That shouldn't be preview generation.  It doesn't build them all before
> showing Watch/Delete Recordings.  (We are talking about mythfrontend
> here, right, and not MythWeb?)
>
> > > Make sure you disable the setting:
> > >
> > > Video List browses files If set, this will cause the Video List
> > > screen to show all relevant files below the MythVideo starting
> > > directory whether they have been scanned or not.
> > >
> > > for the test.  Note, also, that there's an equivalent setting for
> > > the other 3 views.
> >
> >  I do have this on, because during the transition from DVDs to avis, I
> >  occasionally just stuck a ripped vob in there and transcoded it
> >  later.  I'll try with it off, and see if there is a difference.
>
> If you have that on an have:
>
> Video List Loads Video Meta Data
> If set along with Browse Files, this will cause the Video List to load
> any known video metadata from the database. Turning this off can
> greatly  speed up how long it takes to load the Video List tree
>
> on that could cause the delay you're seeing.
>
>

This did it.  Either loading the info from the DB or loading the movie
posters is responsible for the delay.  Turning off that option made the
vides load instantly.  I suppose now I can focus on why I seem to be getting
such terrible disk performance.

Thank you!

Ryan
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