From owner-freebsd-smp Thu Mar 13 14:55:22 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 B04D237B404 for ; Thu, 13 Mar 2003 14:55:18 -0800 (PST) Received: from mail.speakeasy.net (mail13.speakeasy.net [216.254.0.213]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1A24C43FB1 for ; Thu, 13 Mar 2003 14:55:18 -0800 (PST) (envelope-from jhb@FreeBSD.org) Received: (qmail 14367 invoked from network); 13 Mar 2003 22:55:26 -0000 Received: from unknown (HELO server.baldwin.cx) ([216.27.160.63]) (envelope-sender ) by mail13.speakeasy.net (qmail-ldap-1.03) with DES-CBC3-SHA encrypted SMTP for ; 13 Mar 2003 22:55:26 -0000 Received: from laptop.baldwin.cx (gw1.twc.weather.com [216.133.140.1]) by server.baldwin.cx (8.12.8/8.12.8) with ESMTP id h2DMtFOv051031; Thu, 13 Mar 2003 17:55:15 -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: <20030313135041.E95281-100000@merckx.snl.salk.edu> Date: Thu, 13 Mar 2003 17:55:33 -0500 (EST) From: John Baldwin To: Jorge Aldana Subject: RE: SMP and Hyperthreading Info Cc: freebsd-smp@freebsd.org 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 On 13-Mar-2003 Jorge Aldana wrote: > Hello SMP Group, > > I'd like to get the low down on how FreeBSD is dealing with hyperthreading, as > in docs or specs? Or do I need to dig into the code? Right now we just spin up the logical CPU's as if they were extra CPUs. There isn't any special treatment in the schedule for logical CPUs. -- 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-smp" in the body of the message