[mythtv] waiting for prebuffer...

[Thomas Börkel]

HI!

John Patrick Poet wrote:

>> Does it help at all if you uncomment the calls to run the decoder at 
>> realtime priority?  (This is not a good idea in general -- sometimes 
>> makes the videoout thread starved for cycles and jittery -- but if it 
>> improves matters might indicate that the decoder thread's starved for 
>> CPU).  Could the driver for your gigabit ethernet be hogging CPU for 
>> longish periods?  Can you try to make the MTU smaller?
> 
> The typical load on the frontend is just a touch over 1, with between 40 
> and 45% CPU.
> 
> I have had this problem since before you added the "realtime priority", 
> so I don't think that has anything to do with it.
> 
> I need to some more testing, but it actually looks like lowering the MTU 
> has solved the problem!  The problem is infrequent enough that I cannot 
> be sure, but I have not seen a glitch in over an hour, now.

To what value did you set the MTU? And did you lower it only on the 
frontend?

Thomas