Date: Sat, 2 Mar 2002 23:27:14 +1100 (EDT) From: Andrew MacIntyre <andymac@bullseye.apana.org.au> To: Nathan Kunkee <nkunkee@umr.edu> Cc: <smp@FreeBSD.ORG> Subject: Re: freebsd-hackers SMP performance question Message-ID: <Pine.OS2.4.32.0203022324120.128-100000@tenring.andymac.org> In-Reply-To: <20020301162258.GA24102@umr.edu>
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On Fri, 1 Mar 2002, Nathan Kunkee wrote:
> I'm using a dual P120, 64M ram, built my own SMP kernel, and have noticed the
> same thing: performance/through put slows to nothing. my best example of this
> is when in X I move the mouse. no mouse motion, ~6% cpu usage. move the mouse,
> ~40-55% usage. Are all interrupts being mapped to a single cpu??
A dual P120 would definitely be subject to the fix made post 4.5.
Search the archives for a thread with the subject "P5 vs. SMP, part 2";
one followup contains a patch for a Pentium specific issue.
--
Andrew I MacIntyre "These thoughts are mine alone..."
E-mail: andymac@bullseye.apana.org.au | Snail: PO Box 370
andymac@pcug.org.au | Belconnen ACT 2616
Web: http://www.andymac.org/ | Australia
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