From owner-freebsd-questions@FreeBSD.ORG Thu Mar 15 02:39:10 2007 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 1563D16A403 for ; Thu, 15 Mar 2007 02:39:10 +0000 (UTC) (envelope-from danny@ricin.com) Received: from smtpq2.groni1.gr.home.nl (smtpq2.groni1.gr.home.nl [213.51.130.201]) by mx1.freebsd.org (Postfix) with ESMTP id CFD2513C458 for ; Thu, 15 Mar 2007 02:39:09 +0000 (UTC) (envelope-from danny@ricin.com) Received: from [213.51.130.188] (port=49740 helo=smtp3.groni1.gr.home.nl) by smtpq2.groni1.gr.home.nl with esmtp (Exim 4.30) id 1HRigo-000330-Qt for freebsd-questions@freebsd.org; Thu, 15 Mar 2007 06:39:50 +0100 Received: from cp464173-a.dbsch1.nb.home.nl ([84.27.214.242]:50165 helo=desktop.homenet) by smtp3.groni1.gr.home.nl with esmtp (Exim 4.30) id 1HRfWl-0006rv-Qo for freebsd-questions@freebsd.org; Thu, 15 Mar 2007 03:17:15 +0100 From: Danny Pansters To: freebsd-questions@freebsd.org Date: Thu, 15 Mar 2007 03:21:17 +0100 User-Agent: KMail/1.9.5 References: <20070315011651.GA1524@thought.org> In-Reply-To: <20070315011651.GA1524@thought.org> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200703150321.18033.danny@ricin.com> X-AtHome-MailScanner-Information: Please contact support@home.nl for more information X-AtHome-MailScanner: Found to be clean Subject: Re: Optimizationn questions? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 15 Mar 2007 02:39:10 -0000 On Thursday 15 March 2007 02:16, Gary Kline wrote: > Two quick one for kernel and/or compiler wizards: first, is > a 400Mz processor considered a 586 (for my KERNELCONF file)? Think its 686 (but really, leaving 486 and 586 in isn't going to slow down booting or anything!) I always say: Use GENERIC unless you have a good reason not to. > Second, is it safe to do a buildworld with -O3? If there are No. It's not supported if things break. > stability concerns, I'll go with the default when I rebuild my > 6.2 systems. The defaults should be fine. Also, like I said consider just using GENERIC and load the odd kmod if needed. Generally it's less headache and equal performance. > thanks in advance, > > gary Cheers, Dan