[mythtv-users] XvMC with Nvidia 7676 no change in CPU usage?

[Kevin Kuphal]

Tom Lichti wrote:
> Kevin Kuphal wrote:
>   
>> Steven Adeff wrote:
>>   
>>     
>>> I'm playing around with XvMC on my desktop/server since it has a
>>> FX5200 and I'm thinking of using it as a frontend for my bedroom. I've
>>> got Myth and mplayer compiled with XvMC support and both look like
>>> they're using xvmc when I enable them to, but what I don't see is any
>>> reduction in CPU usage with either.
>>> I'm running X as root to make sure I have full privileges as I test.
>>> I'm testing mostly with HD content since SD content uses so little CPU
>>> on my machine to begin with.
>>>   
>>>     
>>>       
>> If you have a greyscale OSD, then you are using XvMC.  If your OSD is 
>> color, you're not.  XvMC is selected in the playback settings for TV 
>> where you pick your MPEG decoder (Standard, libmpeg2, XvMC, etc.). 
>>
>> Kevin
>>   
>>     
> So why is it when I have XvMC enabled (greyscale OSD) my CPU usage is 
> about 90%, and when it's not enabled my CPU usage is around 50%? Seems 
> kind of bass-ackwards.
>   
Sure does.  Have you played with the OpenGL Vsync settings?  I've only 
used XvMC on my MX440 system and it allows me to playback 1080i HD 
content perfectly so I'm not sure what may be causing your problem.

Kevin