Date: Mon, 1 Jun 1998 08:58:29 +0930 From: Greg Lehey <grog@lemis.com> To: Karl Pielorz <kpielorz@tdx.co.uk>, Jake <jake@checker.org> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: some ccd questions Message-ID: <19980601085829.F22406@freebie.lemis.com> In-Reply-To: <35712DAC.29146FCA@tdx.co.uk>; from Karl Pielorz on Sun, May 31, 1998 at 11:15:08AM %2B0100 References: <199805302220.SAA01012@elephants.dyn.ml.org> <35712DAC.29146FCA@tdx.co.uk>
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On Sun, 31 May 1998 at 11:15:08 +0100, Karl Pielorz wrote: > Jake wrote: >> Maybe I'll be able to capture video from my bt848 without the system being >> completely bogged down by disk access. > > If they are all IDE drives (which it looks like they are), and you don't > have any bus-mastering DMA (which you can only get in 3.0-CURRENT) I would > suggest you don't use CCD... > > The amount of CPU time needed to run IDE drives is quite a lot, to run two > drives at the same time - is going to be twice as bad... Right, but that's the tradeoff for doubling the througput. > Considering your goals of putting swap on them as well, and only using them > for parts of the disk I'd say your probably better off just mounting the > extra drive somewhere... I don't see that that solves anything. Greg -- See complete headers for address and phone numbers finger grog@lemis.com for PGP public key To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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