[mythtv-users] frontend CPU utilization after change from sw to hw encoding

[Chris B]

Exactly the same for me.
I suppose that it's due to the MPEG2 decoding, but reading a DVD with 
Xine only takes +/- 50%. Maybe is there some optimizations to be done 
regarding MPEG2 decoding...

On the same cpu-cycle vein, looks like bringing up the OSD takes a 
ridiculous amount of CPU (at least 30%, but then I get to 100%) vs. the 
fact that no processing takes place.

macksold wrote:

>I wonder if somebody might take a stab at helping me understand the CPU
>utilization I am experiencing now that I have changed my setup.  I have
>gone from software encoding to hardware, while I was at it I switched
>machines from 1.2GHz Athlon to a PIII 600MHz, since HW encoding would
>use less CPU.
>
>Here are the before and after setup, both have frontend and backend
>running and watching live tv.
>
>Before:
>AMD Athlon 1.2GHz 512MB RAM
>GeForce 4
>Hauppauge WinTVPCI
>MPEG-4 Live TV profile
>backend uses 75% or so CPU
>frontend uses around %5
>
>After:
>Pentium III 600MHz 384MB RAM
>GeForce 4 (same as before)
>Hauppauge PVR-250
>Hardware MPEG2 Live TV profile
>backend uses 5%
>frontend uses 75%
>
>I am surprised at the frontend cpu utilization on the PIII setup, an
>ideas?
>
>  
>
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