Date: Sun, 23 Apr 2000 11:23:04 +0930 From: Greg Lehey <grog@lemis.com> To: Andy Coates <andy@friends-tv.net> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: Dual Processors Message-ID: <20000423112304.F4675@freebie.lemis.com> In-Reply-To: <022f01bfacc5$f9d11ff0$0100a8c0@blade> References: <017701bfac70$2152eaa0$0100a8c0@blade> <20000423105631.E4675@freebie.lemis.com> <022f01bfacc5$f9d11ff0$0100a8c0@blade>
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[Format recovered--see http://www.lemis.com/email/email-format.html] On Sunday, 23 April 2000 at 2:48:05 +0100, Andy Coates wrote: > On Sunday, April 23, 2000 2:26 AM, Greg Lehey <grog@lemis.com> wrote: >> On Saturday, 22 April 2000 at 16:33:34 +0100, Andy Coates wrote: >>> >>> I currently have a Abit BP6 motherboard with 2 celeron 466's. I'm >>> not sure how to make FreeBSD make use of both these processors, >>> can anyone give me a point in the right direction as to where I >>> should be looking? >>> >>> I added SMP options in the kernel config, but I wasn't too sure >>> what to use so I left the defaults in: > >>> # To make an SMP kernel, the next two are needed >>> options SMP # Symmetric MultiProcessor Kernel >>> options APIC_IO # Symmetric (APIC) I/O >>> # Optionally these may need tweaked, (defaults shown): >>> options NCPU=2 # number of CPUs >>> options NBUS=4 # number of busses >>> options NAPIC=1 # number of IO APICs >>> options NINTR=24 # number of INTs >>> >>> Would that be okay? And how can I test that I am using both >>> processors? I tried running a CPU intensive program and the load >>> average never went over 1, which I thought would reach 2 if 2 >>> processors were in use. >> >> If you run one CPU intensive program, it will run in one CPU. You >> need at least two to use both CPUs. Take a look at dmesg. You should >> see: >> >> SMP: AP CPU #1 Launched! > > Yep, its there. I did actually see that message on bootup, and first > impression was that only #1 CPU had been started or something, and > wondered where #2 was :-) You don't have a #2. #0 is what produced all the messages so far. > Thanks for clearing it up. > > Now I rest in the knowledge my box is running at its fastest :-) I've just installed a system with exactly the same motherboard/CPU combination. I'm quite impressed. Greg -- When replying to this message, please copy the original recipients. For more information, see http://www.lemis.com/questions.html Finger grog@lemis.com for PGP public key See complete headers for address and phone numbers To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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