[mythtv-users] tuning two-card systems ?

Adam Felson a.f.5 at pobox.com
Mon Oct 18 15:28:25 UTC 2004

On Fri, 2004-10-15 at 22:25 +0200, Maarten wrote:
> Hi,
> I just managed to build my two-card (bttv cards!) system.  It works fine I 
> guess, when recording two channels it is 0% idle, but still everything 
> appears to get to disk just fine for now.  I've seen no jerking or hiccups or 
> artifacts.  More on that setup below. First my problem...:

Impossible.  I don't think you're not measuring your CPU usage
correctly.  If you copied raw data to the hard drive (about 15G/hour?)
you might get it down to 10%.

With RT-MPEG2 compression on an Athlon XP 3000, you need 10%/card.  For
mpeg4 compression, you need 30%/card.

Or are you running at ridiculously low resolution like 240x160?

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