From owner-freebsd-smp@FreeBSD.ORG Mon Sep 1 08:13:10 2003 Return-Path: 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 ECA5016A4BF for ; Mon, 1 Sep 2003 08:13:09 -0700 (PDT) Received: from sccmmhc02.asp.att.net (sccmmhc02.asp.att.net [204.127.203.184]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8807143FF7 for ; Mon, 1 Sep 2003 08:13:08 -0700 (PDT) (envelope-from geek@mchsi.com) Received: from mchsi.com (12-216-226-11.client.mchsi.com[12.216.226.11]) by sccmmhc02.asp.att.net (sccmmhc02) with SMTP id <20030901151307mm2004dmdve>; Mon, 1 Sep 2003 15:13:07 +0000 Message-ID: <3F53603E.7070300@mchsi.com> Date: Mon, 01 Sep 2003 10:05:34 -0500 From: Sam Napier User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.5a) Gecko/20030718 X-Accept-Language: en-us, en MIME-Version: 1.0 To: freebsd-smp@freebsd.org Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Subject: option Hyperthreading X-BeenThere: freebsd-smp@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: FreeBSD SMP implementation group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 01 Sep 2003 15:13:10 -0000 I have a quad P-Pro machine (IBM PC-704) running FreeBSD 4.8 p-7, I wanted to know if there is an advantage to enabling hyperthreading in the kernel config when you are using more than 2 physical processors? Are there any changes that need to be made to make.conf for this setup? --Sam Napier