Re: smp and irq conflict

[Bill Davidsen]

Benny Amorsen wrote:
> > > > > > "BD" == Bill Davidsen <davidsen@xxxxxxx> 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@xxxxxxx>
 CTO TMR Associates, Inc
 Doing interesting things with small computers since 1979

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/