[mythtv-users] Xbox frontend really slow, video only updates every few seconds

Daniel A. Segel mythtv at archer-segel.com
Sun Feb 12 20:34:21 UTC 2006


Daniel A. Segel wrote:

> George Nassas wrote:
>
>>On 12-Feb-06, at 11:32 AM, Daniel A. Segel wrote:
>>
>>  
>>
>>>I recently installed MythTV from SVN on my Xbox running Xebian 1.1.4,
>>>and while it *works* as a frontend-only system, the performance is so
>>>bad it's basically unusable. My backend system is using a PVR-350 to
>>>...
>>>Any tips on what to check or change to make it work better?
>>>    
>>>
>>
>>I'm running a similar setup (xbox/xebian 1.1.4/svn/BE with pvr350) and 
>>getting good results although the poor thing swaps like crazy when I 
>>switch from one thing to another (menu -> TV or video). However once 
>>the swapper sorts things out it's great. One difference for me is that 
>>I record at 480x480 but I don't know if that's significant.
>>
>>First question ought to be what process is hogging the cpu. What does 
>>top say?
>>  
>>
> The top several processes are all mythfrontend. It's using ~60-80% of 
> the cpu, followed by XFree86. Everything else is using 1% or less.Only 
> 100MB of my 256MB swap is in use. It actually plays a second or two of 
> video, then freezes for a few seconds, then plays again for a few 
> seconds. This repeats as long as I let it. I'll try setting things to 
> 480x480 and see if that helps.

OK, 480x480 seems to work well, but I don't like the "soft" image. I
guess I'm just spoiled by the PVR-350's nice picture.

Daniel




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