[mythtv-users] Are there any throttling features in Mythtv?

[Kevin Kuphal]

On Tue, Feb 3, 2009 at 10:01 AM, Mike Perkins
<mikep at randomtraveller.org.uk>wrote:

> Sunday evening, we sat down to watch a film I'd recorded just before
> Christmas, 2 hours long. This was about 7:45 pm. An hour and a half later,
> the whole system hung. There was not the slightest sign that anything was
> wrong up to the point it froze.
>
> After some investigation of the front end[1] I discovered that the back end
> had hung. This was because at 8:55 pm the back end had begun three
> simultaneous recordings on three DVB-T tuners. Apparently my back end
> couldn't cope with reading and writing four streams simultaneously[2].
>
> Now, before you all scream "throw more hardware at it!" I would like to
> point out that whatever system you've got, a point will come when you are
> likely to stress it. So it occurred to me to wonder if there was any kind of
> throttling or warning available in mythtv, apart from "max # of jobs to run
> on this backend".
>
> For example, if I were to play a long film that happened to overlap a
> period of heavy recording, would it be possible for the system to say
> something like "this probably isn't a good idea, go and watch something
> shorter"? Or for it to show me what's likely to happen within the playing
> time of the selected program?
>
> I wouldn't want to go as far as rescheduling, but some kind of information
> screen might be useful. At the moment, to find out what's scheduled involves
> going into "schedule programs" then "upcoming recordings" to see a list,
> then backing out and going to "watch recordings" to find something to watch.
> Anyone any suggestions?
>
> [1] see separate post. The front end was ok in this instance.
> [2] recording three simultaneous streams is known to work ok. Recording 2
> streams and watching one is known to work ok.


Quick answer, no.  It's up to you not to configure your system to exceed
it's capacities.

Kevin
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