[mythtv-users] channel changing speed, is 3 seconds normal?

Curtis Stanford curtis at stanfordcomputing.com
Tue Sep 30 11:01:23 EDT 2003


Mine is at least 6 seconds on an external DirecTV box. My suggestion was to 
start the external channel change operation and, while it's happening, do the 
ringbuffer stuff. No reason they can't happen in parallel.

On September 30, 2003 06:52 am, Michael J. Sherman wrote:
> My channel changing process is also very long; equal or greater than 3
> seconds.  Also, sometimes it'll just miss a number, so it'll attempt to
> change to say 106, but only '1' and '6' gets sent, or sometime '1' and
> '0'.  It's random, and quite odd.
>
> jose rubio wrote:
> > On Mon, 2003-09-29 at 22:24, Sergio M. Ammirata wrote:
> >>I followed a thread regarding slow channel changing speed. That thread
> >>suggested using either reiserfs or xfs for the cache partition. I tried
> >>both and it takes about 3 seconds to change to another channel in
> >>either. Is this normal?
> >>
> >>Is there any way to speed it up?
> >>
> >>I am using a pundit with a custom OS build. My CPU while watching live
> >>TV is under 2%. I have a WD 160HD with DMA enabled.
> >>
> >>Thanks in advance,
> >>
> >>Sergio Ammirata
> >
> > Yep, 3 secs is about right.  I'm not particularly happy with it and I'm
> > sure there are things that can be done about it but the people that know
> > what to do are too busy working on the nuts-n-bolts of the program.
> >
> > I do know a little c myself...lol...but about all I could do is to put
> > one of those "microsoft hour glass" cursors in the screen while the
> > channel changes...
> >
> > BST, I've timed Tivo, it takes less than 2 secs, closer to 1 second
> > actually.  There's no reason why that speed (even better) cannot be
> > achieved by myth...  We just need to keep working at it...
> >
> >
> > -jose-



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