Date: Fri, 05 Nov 1999 20:06:24 +0800 From: Peter Wemm <peter@netplex.com.au> To: Joachim Strombergson <Joachim.Strombergson@emw.ericsson.se> Cc: freebsd-smp <freebsd-smp@FreeBSD.ORG> Subject: Re: Affinity Message-ID: <19991105120624.B42C61C03@overcee.netplex.com.au> In-Reply-To: Your message of "Fri, 05 Nov 1999 08:43:12 %2B0100." <38228A90.B00F2E8C@emw.ericsson.se>
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Joachim Strombergson wrote: > Hi! > > I've missed the message boats a few times so... Could anyone explain the > affinity thing again. If I understood it correctly, it's used to lock a > process to a certain CPU. > > When running say a SETI@Home and some other apps at the same time, and > then check top, I see a behaviour for the SETI process where the status > goes something like: CPU0->RUN->CPU1->RUN->CPU0.... Does that mean that > the process is bouncing back and forth between the CPUs? > > Any help and explanations would be very much appreciated. > > BTW: I'm running a Dual Celeron on ABIT BP6 machine with FreeBSD 3.3 > STABLE. 4.0 has some simple affinity tweaks that should help with this type of problem. It seems to help with rc564. Cheers, -Peter To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message
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