Date: Tue, 13 Nov 2001 15:37:26 +0900 From: Hiroharu Tamaru <tamaru@myn.rcast.u-tokyo.ac.jp> To: freebsd-smp@FreeBSD.org Cc: "Andrew R. Reiter" <arr@FreeBSD.org>, Hiroharu Tamaru <tamaru@myn.rcast.u-tokyo.ac.jp>, Alfred Perlstein <bright@mu.org>, John Baldwin <jhb@FreeBSD.org>, Terry Lambert <tlambert2@mindspring.com> Subject: Re: cpu affinity Message-ID: <sa6eln3ch21.wl@ring.myn.rcast.u-tokyo.ac.jp> In-Reply-To: <20011112115942.N89342@elvis.mu.org> References: <sa6g07jdib6.wl@ring.myn.rcast.u-tokyo.ac.jp> <Pine.NEB.3.96L.1011112124127.28029D-100000@fledge.watson.org> <20011112115942.N89342@elvis.mu.org>
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Great! I'll try this patch as well when things get set up. I'll be back again after playing around with them. Thanks again. At Mon, 12 Nov 2001 11:59:42 -0600, Alfred Perlstein wrote: > > * Andrew R. Reiter <arr@FreeBSD.org> [011112 11:46] wrote: > > > > One idea I had been thinking about, tho Im sure others have already > > thought about doing this many times, is to allow for something like > > chooseproc() to choose a cpu that is on another machine. So, as a stupid > > example, say we have a process/thread controlling utility (psctl)... one > > would be able to: > > > > psctl --move --process=<pid> --cpu-location=host:cpu# > > > > Im not sure how useful this would be for anyone outside myself to use, but > > would be interesting to see what we could do with SMP and KSE as things > > become stable later on. Like I said, I believe this work has already been > > done, but imo is something interesting nevertheless. > > I've done this work and proved a small but measurable performance > improvement using my method. > > http://people.freebsd.org/~alfred/bind_cpu.diff > > I'm not sure if that's the one that'll work ATM, i know that KSE > most likely broke it and it doesn't include my patch to psctl to > fiddle the boundness of a process. I'll try to look it up again. > > -Alfred To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message
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