[mythtv-users] PVR250 question
J.R. Hyde
jr at jrh.net
Fri May 2 08:07:30 EDT 2003
>> > - Can MythTV handle 3 capture cards in one PC?
>>
>>Can MythTV handle it? Sure. Can your CPU? That's the better
>>question.
>
>The CPU should be able to - TOP shows about 20-30% for recording on one
>card, and about the same for playback. So, adding another card should
still
>leave 10-20% free for the MPEG2 card which should be enough ;-)
With a nforce2, barton 2500xp, and 768mbs of ram with a pvr 250 I am
90-94% IDLE while watching a 30 minute time shifted live tv segment.
That's just nuts. 4% of that comes from running top over sshd to monitor
the machine too lol. I would be worried more about my hard drive keeping
up with 3 streams going down and one coming up than my cpu anymore. Of
course I don't think the current driver supports multiple pvr 250's yet,
but if it doesn't it will probably be coming soon, they seem to be
working pretty hard on it.
>> You're probably going to start running into PCI bandwidth issues
>>as well.
>
>Yep, I was thinking of that, PCI & hard disk speed might become a
problem.
>Hard disk speed I can probably resolve (I've got a SCSI RAID controller
>lying around ;-) RAID 0 across 4 U160 disks should be fast enough), but
PCI
>bandwidth is a limiting factor.
>
Yup yup.
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