From owner-freebsd-smp@FreeBSD.ORG Sun Sep 19 10:13:05 2004 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 20EFD16A4CF for ; Sun, 19 Sep 2004 10:13:05 +0000 (GMT) Received: from santiago.pacific.net.sg (santiago.pacific.net.sg [203.120.90.135]) by mx1.FreeBSD.org (Postfix) with SMTP id EB45043D49 for ; Sun, 19 Sep 2004 10:13:03 +0000 (GMT) (envelope-from oceanare@pacific.net.sg) Received: (qmail 18505 invoked from network); 19 Sep 2004 10:13:02 -0000 Received: from unknown (HELO maxwell6.pacific.net.sg) (203.120.90.212) by santiago with SMTP; 19 Sep 2004 10:13:02 -0000 Received: from [192.168.0.107] ([210.24.202.141]) by maxwell6.pacific.net.sg with ESMTP <20040919101301.SEYL17051.maxwell6.pacific.net.sg@[192.168.0.107]>; Sun, 19 Sep 2004 18:13:01 +0800 Message-ID: <414D5BA6.5080906@pacific.net.sg> Date: Sun, 19 Sep 2004 18:12:54 +0800 From: Erich Dollansky User-Agent: Mozilla Thunderbird 0.7.3 (X11/20040913) X-Accept-Language: en-us, en MIME-Version: 1.0 To: "Martin P. Hellwig" References: <010801c49dee$72cc5eb0$6401a8c0@yourw92p4bhlzg> <1095546154.671.6.camel@elemental.DashEvil> <010e01c49df0$a5b79400$6401a8c0@yourw92p4bhlzg> <414D4CEC.1050400@xs4all.nl> In-Reply-To: <414D4CEC.1050400@xs4all.nl> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit cc: freebsd-advocacy@freebsd.org cc: freebsd-smp@freebsd.org cc: freebsd-questions@freebsd.org Subject: Re: Please explain. 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: Sun, 19 Sep 2004 10:13:05 -0000 Hi, Martin P. Hellwig wrote: > timh@tjhawkins.com wrote: > > > Well, fair enough but it still comes down to if you have a other OS > which does what you need than use that OS. SMP support is only one thing to consider. > But perhaps you require the BSD license for you biz? > Actually I'm not very knowledged (far from) about design and multithread > issues however from what I read is that mulitple CPU's is a real pain > and the one who managed it the best is SUN (only read that - not sure > about it), but there working 10 years on this issues and get paid for The main difference is that they live from selling the hardware. If their operating system would not support their very own hardware up to the extent, their sales would drop. Sun's support for multiple CPUs includes also things which are not even supported by standard x86 hardware. Try to exchange a CPU while your PC based machine is running. Erich