Date: Fri, 31 Jan 2003 12:48:34 -0800 (PST) From: Julian Elischer <julian@elischer.org> To: John Baldwin <jhb@FreeBSD.org> Cc: leafy <leafy@leafy.idv.tw>, freebsd-current@FreeBSD.ORG Subject: Re: Hyperthreading and machdep.cpu_idle_hlt Message-ID: <Pine.BSF.4.21.0301311248180.45015-100000@InterJet.elischer.org> In-Reply-To: <XFMail.20030131150528.jhb@FreeBSD.org>
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On Fri, 31 Jan 2003, John Baldwin wrote: > > On 31-Jan-2003 leafy wrote: > > On Fri, Jan 31, 2003 at 01:45:56PM -0500, Trish Lynch wrote: > >> I have the .dat's for you, unfortunately, the output is different, so > >> you'll have to modify the .cfg for gnuplot :) > >> > >> -Trish > > I have HTT for my CPU, is there any "hack" to the BIOS to enable HyperThreading? > > Having HTT does _not_ mean you actually have multiple cores in your physical CPU. > You will see a separate line in your dmesg giving the number of cores per CPU > if you do. The BIOS really has nothing to do with this, it all comes from > registers returned from the CPUID instruction. do you need an SMP kernel to see this? > > -- > > John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ > "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-current" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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