[mythtv-users] Prebuffering pause on Frontend playing back HD
chris at chrisdos.com
Sun Dec 31 02:25:42 UTC 2006
Chris Dos wrote:
> I built a new frontend for Christmas.
> It's spec's are:
> AMD X2 3800+ proc
> Asus M2NPV-VM MB with Integrated Geforce 6150 Video VGA/DVI
> 1 GB RAM
> Silverstone ML01 case
> This was pulling off 802.11a at a sustained 4 MB/s transfer, but for testing
> this issue, I've hooked up GB ethernet and I'm transferring 23 MB/s.
> The combo backend/frontend that is in the family room plays HD fine. This
> frontend was imaged from the backend and necessary changes made to make it just
> a frontend. Hardware is mostly the same between the backend and the frontend
> except the backend has a AMD X2 4200+ proc and a lot more hard drives.
> I've configured the fronted to use NFS and tired it without NFS.
> Processor usage on the Frontend during playback is around 40%. Output from top:
> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
> 23932 mythtv 15 0 470m 359m 122m S 109 40.8 6:17.23 mythfrontend
> 21978 root 16 0 350m 341m 108m R 14 38.7 1:10.29 Xorg
Obviously I can't see straight. The CPU is using a LOT more processor then it
should. I've been used to seeing only around 40% on the backend in the family
room. Maybe the extra 200 mhz on the backed was enough for it to play back HD
that I didn't notice that there was a problem. So I think something has changed
in SVN that is requiring a lot more cpu usage that what it was using. I'll
upgrade to current SVN and see what happens.
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