From owner-freebsd-questions@FreeBSD.ORG Sun Apr 13 16:01:28 2003 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 84E4837B401 for ; Sun, 13 Apr 2003 16:01:28 -0700 (PDT) Received: from smtp.mailbox.co.uk (smtp.mailbox.net.uk [195.82.125.32]) by mx1.FreeBSD.org (Postfix) with ESMTP id B7ADD43F85 for ; Sun, 13 Apr 2003 16:01:25 -0700 (PDT) (envelope-from wayne.pascoe@penguinpowered.org.uk) Received: from [212.18.244.168] (helo=marvin.penguinpowered.org.uk) by smtp.mailbox.co.uk with esmtp (Exim 3.36 #1) id 194qTV-0003eZ-00; Mon, 14 Apr 2003 00:01:25 +0100 Received: from waynep by marvin.penguinpowered.org.uk with local (Exim 3.33 #1) id 194qdV-0000pC-00; Mon, 14 Apr 2003 00:11:45 +0100 Date: Mon, 14 Apr 2003 00:11:45 +0100 From: Wayne Pascoe To: =?unknown-8bit?Q?S=EAr=EAciya_Kurdistan=EE?= Message-ID: <20030413231145.GA3148@marvin.penguinpowered.org.uk> References: <20030413211932.GA2622@marvin.penguinpowered.org.uk> <20030413215504.GB44865@kurdistan.ath.cx> Mime-Version: 1.0 Content-Type: text/plain; charset=unknown-8bit Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20030413215504.GB44865@kurdistan.ath.cx> User-Agent: Mutt/1.4i X-System: FreeBSD i386 with kernel 4.8-STABLE Sender: User Waynep cc: freebsd-questions@freebsd.org Subject: Re: SMP kernel on uniprocessor boxen 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: Sun, 13 Apr 2003 23:01:28 -0000 On Sun, Apr 13, 2003 at 02:55:04PM -0700, Sêrêciya Kurdistanî wrote: > > Is there any harm to running a SMP kernel on uni processor boxen ? > > Yes. You may be a little dissappointed when the machine does not > boot up ;) Uh, I was more talking of performance issues. I've just rebuilt most of our boxes with 4.8-STABLE. As I wanted to only do the make buildworld and make buildkernel on one machine and export that, I used SMP options in the kernel. All of the machines booted fine. About half of them are uniprocessor. I was just wondering if I am liable to see any performance issues as a result of this. Thanks, -- Wayne Pascoe