[mythtv-users] Network adds too much overhead for HD frontend

David Brodbeck gull at gull.us
Mon Dec 18 18:54:33 UTC 2006

Ken Mandelberg wrote:
> I'm trying to run a frontend on 2GHZ P4 laptop with a radeon 7500.
> The frontend can just manage to display HD mpeg2 files that are local. 
> Mythfrontend uses about 70% of the CPU and Xorg a little over 20%, with 
> about 5% idle.
> Over the network to the backend there is 0 idle on the same files, with 
> frequent prebuffering pauses. This is on a 100mbit wired network 
> connection. Top shows about 5% software interrupts (%si) which are close 
> to 0 when its operating off the local disk.

I wonder if a different ethernet card would help?  Some of them take on
more of the work than others.  The ubiquitous cheap RealTek NICs are
pretty simplistic and demand a little more effort from the CPU.  That
said, I haven't tested different cards side-by-side to see if there's a
significant difference.

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