Date: Tue, 28 Jan 2003 12:53:49 +0300 From: Odhiambo Washington <wash@wananchi.com> To: Ceri Davies <setantae@submonkey.net> Cc: Adam Migus <adam@migus.org>, current@FreeBSD.org Subject: Re: Force 1 CPU on SMP kernel? Message-ID: <20030128095349.GK36536@ns2.wananchi.com> In-Reply-To: <20030128095107.GA2628@submonkey.net> References: <49857.192.168.4.2.1043728382.squirrel@mail.migus.org> <20030128095107.GA2628@submonkey.net>
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* Ceri Davies <setantae@submonkey.net> [20030128 12:50]: wrote: > On Mon, Jan 27, 2003 at 11:33:02PM -0500, Adam Migus wrote: > > Hi, > > I'm doing some performance analysis on FreeBSD. I would like to > > be able to make an SMP kernel use only one CPU. Of course I > > realize running GENERIC would only use 1 CPU but the concern is > > that the overhead assoicated with SMP will skew the statistics. > > So my question is what would be the 'best' way to make an SMP > > kernel only start/use CPU0? > > Yank the others ? > What about building two kernels, one SMP, the other non-SMP, then just boot wheichever kernel you want? Doesn't it server same purpose? Better than Ceri's idea ;) -Wash -- Odhiambo Washington <wash@wananchi.com> "The box said 'Requires Wananchi Online Ltd. www.wananchi.com Windows 95, NT, or better,' Tel: +254 2 313985-9 +254 2 313922 so I installed FreeBSD." GSM: +254 72 743223 +254 733 744121 This sig is McQ! :-) "I'd love to go out with you, but I'm converting my calendar watch from Julian to Gregorian." To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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