From owner-freebsd-questions@FreeBSD.ORG Wed Oct 27 00:17:51 2004 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 778F416A4CE for ; Wed, 27 Oct 2004 00:17:51 +0000 (GMT) Received: from smtp18.wxs.nl (smtp18.wxs.nl [195.121.6.14]) by mx1.FreeBSD.org (Postfix) with ESMTP id 909CD43D1F for ; Wed, 27 Oct 2004 00:17:50 +0000 (GMT) (envelope-from freebsd@akruijff.dds.nl) Received: from kruij557.speed.planet.nl (ipd50a97ba.speed.planet.nl [213.10.151.186]) by smtp18.wxs.nl (iPlanet Messaging Server 5.2 Patch 2 (built Jul 14 2004)) with ESMTP id <0I6700G8SVHP6I@smtp18.wxs.nl> for freebsd-questions@freebsd.org; Wed, 27 Oct 2004 02:17:49 +0200 (CEST) Received: from alex.lan (localhost [127.0.0.1]) by kruij557.speed.planet.nl (8.13.1/8.13.1) with ESMTP id i9R0HnZD022287; Wed, 27 Oct 2004 02:17:49 +0200 Received: (from akruijff@localhost) by alex.lan (8.13.1/8.13.1/Submit) id i9R0Hmpt022286; Wed, 27 Oct 2004 02:17:48 +0200 Content-return: prohibited Date: Wed, 27 Oct 2004 02:17:48 +0200 From: Alex de Kruijff In-reply-to: <20041026210129.GA76812@xor.obsecurity.org> To: Kris Kennaway Message-id: <20041027001748.GA858@alex.lan> MIME-version: 1.0 Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 7BIT Content-disposition: inline User-Agent: Mutt/1.4.2.1i References: <755cb9fc041026135416b35f88@mail.gmail.com> <20041026210129.GA76812@xor.obsecurity.org> X-Authentication-warning: alex.lan: akruijff set sender to freebsd@akruijff.dds.nl using -f cc: Alexandre Vieira cc: freebsd-questions@freebsd.org Subject: Re: HT kernel X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 27 Oct 2004 00:17:51 -0000 On Tue, Oct 26, 2004 at 02:01:30PM -0700, Kris Kennaway wrote: > On Tue, Oct 26, 2004 at 09:54:45PM +0100, Alexandre Vieira wrote: > > Hello, > > > > I have a machine with an Intel p4 3.2ghz FSB800 w/ 1MB L2 cache and > > I wanted to know your opinion about some kernel options that would > > boost the performance of this kind of processor. > > Note that for a lot of workloads HT decreases performance. In what way? Does HT/SMP kernel or option do worse then a normal kernel or default options? -- Alex Please copy the original recipients, otherwise I may not read your reply.