[mythtv-users] Freevo, Tivo & MythTV

Marco Nelissen marcone at xs4all.nl
Sun Nov 19 02:01:44 UTC 2006


>Marco Nelissen wrote:
>>> Seriously - 2-3 seconds for MOST users. If you are experiencing more,  
>>> you have an issue that is not related to the MythTV software. That's  
>>> why this discussion never goes anywhere except on and on and on in  
>>> circles.
>> 
>> Why do you keep saying that the issue is not related to the mythtv
>> software, when I've already mentioned several times that other
>> software on the SAME HARDWARE changes channels much faster?
>
>Do you have any software profiling traces on your system to show where 
>the problem is happening?

I posted a logfile many months ago that showed where the time was spent.
Nothing in particular stood out. It was a half-second here, a quarter-second
there. It adds up quickly, but there was nothing to make me go "a-ha!"

> Do you know that the other software and MythTV 
>are using all the same software and libraries except for the MythTV 
>software? Do you know that the other software and MythTV make use of the 
>same features of your hardware?
>
>If not, then your assumption that it is a problem with MythTV is just an 
>assumption.

Yes, it's an assumption. I think it is a good assumption.

>Since the same version of MythTV works for others, it is equally (or 
>maybe even more) likely that the problem is with either other 
>software/libraries on your system or with your hardware.

First of all, I doubt anyone has the exact same version of mythtv I have.
There is just too much stuff that is configurable for that to be likely.
Second, since the hardware is perfectly capable of doing fast channel
changes (other apps do it with this same hardware), I very much doubt
hardware is the problem.
Finally, if external libraries are the problem, then that means that
mythtv only works correctly with a very specific set of libraries.
We can argue about whether that is a bug in mythtv or not, but at the
very least, it indicates that this "blessed configuration" should be
documented somewhere. Is it?


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