From owner-freebsd-smp Fri Mar 14 2:46:19 2003 Delivered-To: freebsd-smp@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 86EA737B401 for ; Fri, 14 Mar 2003 02:46:18 -0800 (PST) Received: from rms21.rommon.net (rms21.rommon.net [193.64.42.200]) by mx1.FreeBSD.org (Postfix) with ESMTP id D941B43F85 for ; Fri, 14 Mar 2003 02:46:16 -0800 (PST) (envelope-from pete@he.iki.fi) Received: from PHE (h93.vuokselantie10.fi [193.64.42.147]) by rms21.rommon.net (8.12.6/8.12.6) with SMTP id h2EAk9QB034857; Fri, 14 Mar 2003 12:46:11 +0200 (EET) (envelope-from pete@he.iki.fi) Message-ID: <021101c2ea16$ee9d46e0$932a40c1@PHE> From: "Petri Helenius" To: , "Nicolas Kowalski" References: Subject: Re: SMP and Hyperthreading Info Date: Fri, 14 Mar 2003 12:46:11 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Sender: owner-freebsd-smp@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org > Just a question : is there a way (kernel option ?) to disable > Hyperthreading, so that FreeBSD only uses two physical CPUs ? > > I am running FreeBSD 4.8-RC on a Compaq ML370 dual-Xeon, and disabling > HT in the BIOS has no effect. > Not yet, but there´s supposed to be one soon. Meanwhile, source is your friend. Pete To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message