From owner-freebsd-current Fri Jan 31 12:59: 3 2003 Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 879A737B401 for ; Fri, 31 Jan 2003 12:59:00 -0800 (PST) Received: from mail.speakeasy.net (mail15.speakeasy.net [216.254.0.215]) by mx1.FreeBSD.org (Postfix) with ESMTP id 04EDD43F79 for ; Fri, 31 Jan 2003 12:59:00 -0800 (PST) (envelope-from jhb@FreeBSD.org) Received: (qmail 20867 invoked from network); 31 Jan 2003 20:59:05 -0000 Received: from unknown (HELO server.baldwin.cx) ([216.27.160.63]) (envelope-sender ) by mail15.speakeasy.net (qmail-ldap-1.03) with DES-CBC3-SHA encrypted SMTP for ; 31 Jan 2003 20:59:05 -0000 Received: from laptop.baldwin.cx (gw1.twc.weather.com [216.133.140.1]) by server.baldwin.cx (8.12.6/8.12.6) with ESMTP id h0VKwvUT072953; Fri, 31 Jan 2003 15:58:57 -0500 (EST) (envelope-from jhb@FreeBSD.org) Message-ID: X-Mailer: XFMail 1.5.2 on FreeBSD X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: Date: Fri, 31 Jan 2003 15:59:03 -0500 (EST) From: John Baldwin To: Julian Elischer Subject: Re: Hyperthreading and machdep.cpu_idle_hlt Cc: freebsd-current@FreeBSD.ORG, leafy Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG 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 <>< 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