[mythtv-users] Has anybody put together a three tuner system

Jayson Garrell kyi at kyi.sytes.net
Tue Jun 10 16:04:56 EDT 2003


On Tue, 2003-06-10 at 14:44, Brian Foddy wrote:
> On my dual P2-450,
> Certainly its a tough stretch.  I run 3 tuners (2 401's and a PVR250)
> but I don't have the CPU to do everything and watch a 4th show
> without significant skips.  Recording 3 with no watching
> however is suprisingly useable.   I use 640x240 
> resolution with rtjpeg @200 settings.  I don't encode audio, and I can't 
> deinterlace at all on a P2 machine.  I have 3 HDs in the system (2 80MB 
> SCSI and an IDE, all 3 in an Linear Raid config, most of the space is
> on 1 18GB  10k drive).
> 
> In summary tho, by adding a 2nd cpu to a system you go a long
> way towards it.  I haven't tried putting all this in a 
> dual P3-1000 machine I also have, its doing other work.  But
> the added CPU power may make a lot of difference.
> 
> Question:  Any thoughts on how I can see if its PCI bandwidth,
> HD limits, or CPU?  When my machine starts skipping bad, the 
> CPU load actually goes down.  Is that because the frame buffers
> are full and and new ones are skipped, or possibly PCI or HD
> limitations.  The answer may influence how I upgrade my system
> to a permanent solution.

Have you tryed doing a 'tail -f /var/log/syslog' or 'tail -f
/var/log/messages' to see if there are any errors when this occurs?

Jayson Garrell




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