Date: Fri, 31 Jan 2003 15:59:03 -0500 (EST) From: John Baldwin <jhb@FreeBSD.org> To: Julian Elischer <julian@elischer.org> Cc: freebsd-current@FreeBSD.ORG, leafy <leafy@leafy.idv.tw> Subject: Re: Hyperthreading and machdep.cpu_idle_hlt Message-ID: <XFMail.20030131155903.jhb@FreeBSD.org> In-Reply-To: <Pine.BSF.4.21.0301311248180.45015-100000@InterJet.elischer.org>
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On 31-Jan-2003 Julian Elischer wrote: > > > 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? No. -- 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
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