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Message-ID: <45D33CC1.7040709@tmr.com> Date: Wed, 14 Feb 2007 11:45:53 -0500 From: Bill Davidsen <davidsen@....com> To: Benny Amorsen <benny+usenet@...rsen.dk> CC: linux-smp@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: smp and irq conflict Benny Amorsen wrote: >>>>>> "BD" == Bill Davidsen <davidsen@....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@....com> 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@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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