[mythtv-users] Sound system is maxing out the CPU (Fedora 11)

Michael T. Dean mtdean at thirdcontact.com
Mon Sep 14 21:02:09 UTC 2009


On 09/14/2009 03:52 PM, John Nissley wrote:
> I am playing HD 720P programing on a dual core Intel 2.53 GHZ 
> processor.  I noticed that I was running one CPU at 100% when playing 
> back the content.  I found a troubleshooting guide and it recommended 
> setting the Audio output device to NULL to see if ALSA:default would 
> be causing any problems.  When I set the Audio output device to NULL 
> the CPU drops from 100% to 20%.  There was no indication in the 
> troubleshooting guide if it is normal to have any 80% drop when doing 
> this of if that means I have a sound set up problem.
>
> Here is some extra information:
> Removed pulse audio and I am still using 100% CPU.
> I only have ALSA, ARTS and JACK audio output devices
> I am currently not using digital out.
> I am running Fedora 11
> Not using XvMC
> I am running a fairly recent trunk version of .22 but do not think 
> this has anything to do with it.
>
> Do I have a configuration problem or just underpowered processor? 

Configuration problem.  Video decode is orders of magnitude more 
difficult than audio decode.

Did you follow the recommendations on the wiki page?

Mike


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