Date: Fri, 15 Sep 1995 00:32:17 -0700 (PDT) From: sos@freebsd.org To: roberto@keltia.Freenix.FR (Ollivier Robert) Cc: sos@freebsd.org, jehamby@lightside.com, R.L.Hesketh@ukc.ac.uk, hackers@freebsd.org, questions@freebsd.org Subject: Re: Does FreeBSD suffer from the Intel RZ1000 IDE bug? Message-ID: <199509150732.AAA00108@freefall.freebsd.org> In-Reply-To: <199509150643.IAA29470@keltia.Freenix.FR> from "Ollivier Robert" at Sep 15, 95 08:43:21 am
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In reply to Ollivier Robert who wrote:
>
> It seems that sos@freebsd.org said:
> > And I know of the problem :)
> > By the way there isn't much point in using DMA on the IDE interface
> > anyway, so I simply don't use it...
>
> Less CPU load ?
Hmm, yes somewhat, but most systems these days suffers from cacheinvalidates
and what not when you use the Motherboard based DMA, it also has to deal
with the 16Mb problem, so I concluded that it simply wasn't worth the effort.
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Soren Schmidt (sos@FreeBSD.org | sos@login.dknet.dk) FreeBSD Core Team
So much code to hack -- so little time
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