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SubjectRe: smp and irq conflict
Benny Amorsen wrote:
>>>>>> "BD" == Bill Davidsen <davidsen@tmr.com> writes:
>>>>>>
>
> BD> You may be able to move one board to another slot, but looking at
> BD> the bandwidth I suspect you may need a server motherboard with
> BD> multiple busses, preferably running at 66MHz 64bit. I don't think
> BD> this is a interrupt problem, but you can just try capture on two
> BD> channels which share an interrupt, like bttv0 and bttv7 to verify
> BD> that.
>
> 66MHz 64bit isn't much fun when the capture cards are 33MHz 32bit.
>
>

It doesn't help the video to bus, but multiple busses to give a bus per
card would help, and assuming the data are being saved to disk using a
decent disk controller which can use the additional bandwidth, at least
some conflict is avoided or reduced.

This is really a case of using general hardware to the utmost, I suspect
more m/b bandwidth will be needed somewhere.

--
bill davidsen <davidsen@tmr.com>
CTO TMR Associates, Inc
Doing interesting things with small computers since 1979

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