[mythtv-users] Re: high cpu utilization

Derek Meek thekazan at gmail.com
Thu Sep 29 00:46:43 UTC 2005


i'm using the latest atprms with the ringbuffer on the same drive

David Griffith wrote:

>>
>>
>>> on my test box (my desktop) when i'm watching live tv on the box the
>>> _least_ cpu usage I get is 80%
>>>
>>> it is an athlon xp 2500+,1gb of ram, kworld vstream xpert (vs-tv878rf),
>>> and a radeon 9600 SE
>>>
>>> top tells me the vast majority of the cpu usage is in backend.
>>>
>>> I'm encoding live tv to mpeg4 at 2200bps, with two of the tree options
>>> recommended for interlaced video enabled - mp3 at quality 6 and
>>> 32000bps
>>>   
>>
> Are you using a recent SVN build? There's been a few issues lately
> with CPU utilisation while they've sorted stuff out.
> On my XP2000+ (512MB ram) I run at about 60-70% usage recording from
> an analog capture card, with about 40% in the backend.
> I'm recording at about 2600kbps and mp3 at 5 and 44.1kHz.
> My SVN build is from early august.
>
> (One thing I did notice is that when I put my ringbuffer on a
> different drive to the mythtv program, the IO-wait dropped about 30%.)
>
> Dave
>
>
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