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From: Bill Davidsen <>
To: Benny Amorsen <>
Subject: Re: smp and irq conflict
Date: Wed, 14 Feb 2007 11:45:53 -0500	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

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

  reply	other threads:[~2007-02-14 16:44 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-02-01 17:46 Lapo TIN
2007-02-02  4:32 ` Andrew Morton
2007-02-02  5:22   ` Len Brown
2007-02-02 14:52 ` Bill Davidsen
2007-02-05 10:33   ` Benny Amorsen
2007-02-14 16:45     ` Bill Davidsen [this message]
     [not found] <fa.bd33YMixT9/jJwHfbD/>
2007-02-01 23:29 ` Robert Hancock
2007-02-02  0:04   ` Lapo TIN
2007-02-02  0:59     ` Robert Hancock
2007-02-02 11:08     ` Erik Mouw
2007-02-14 17:59       ` Manu Abraham

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