Date: Thu, 10 Jan 2002 15:17:01 -0800 From: Alfred Perlstein <bright@mu.org> To: Greg Lehey <grog@FreeBSD.org> Cc: Terry Lambert <tlambert2@mindspring.com>, Steve Kargl <sgk@troutmask.apl.washington.edu>, smp@FreeBSD.ORG Subject: Re: Linux moves to per CPU run queues Message-ID: <20020110151701.Q7984@elvis.mu.org> In-Reply-To: <20020111094451.C42285@wantadilla.lemis.com>; from grog@FreeBSD.org on Fri, Jan 11, 2002 at 09:44:51AM %2B1030 References: <3C3CF60B.CE5F3E6C@mindspring.com> <20020109203747.A86842@troutmask.apl.washington.edu> <3C3DE6DB.5210233E@mindspring.com> <20020110112323.F7984@elvis.mu.org> <20020111094451.C42285@wantadilla.lemis.com>
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* Greg Lehey <grog@FreeBSD.org> [020110 15:14] wrote: > On Thursday, 10 January 2002 at 11:23:23 -0800, Alfred Perlstein wrote: > > * Terry Lambert <tlambert2@mindspring.com> [020110 11:09] wrote: > >> Steve Kargl wrote: > >>> On Wed, Jan 09, 2002 at 06:01:47PM -0800, Terry Lambert wrote: > >>>> As I have been suggesting for FreeBSD for some time, Linux has > >>>> just moved to per CPU run queues to reduce scheduler contention > >>>> and to improve affinity. > >>>> > >>>> http://www.uwsg.iu.edu/hypermail/linux/kernel/0201.0/0810.html > >>> > >>> Where are your patches? > >> > >> Why not commit Alfred's patches instead? I talked them over > >> with him a number of times in the break room when we were > >> both working at ClickArray, and they are very close (all you > >> would need to do is remove the global run queue dependency he > >> kept). > > > > My patches are leet, but no one would give them the time of day. > > Do you have performance measurements? I did several months ago, they were small, but there was a difference. -- -Alfred Perlstein [alfred@freebsd.org] 'Instead of asking why a piece of software is using "1970s technology," start asking why software is ignoring 30 years of accumulated wisdom.' Tax deductable donations for FreeBSD: http://www.freebsdfoundation.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message
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