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

[John Morris]

On 24 Aug 2003, 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.
> 
> I am surprised at the frontend cpu utilization on the PIII setup, an
> ideas?

I'm running pretty much the same setup and I can duplicate your CPU 
utilization if I leave the PVR card at 8/16 Mbit and grab full 720x480.
I get stable operation with that setup, but normally I scale things back 
to 2-3 Mbit to get 1GB/HR storage and only grab 480x480.  Making those 
changes gets the CPU down to the 25-30% range when watching LiveTV.

But even with the CPU that low I still get at least one glitch changing
channels, about 5-10 seconds after the new stream has started playing.  
Wierd and annoying but not a really major problem.

-- 
John M.      http://www.beau.org/~jmorris        This post is 100% M$ Free!
Geekcode 3.1:GCS C+++ UL++++$ P++ L+++ W++ w--- Y++ b++ 5+++ R tv- e* r
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