From owner-freebsd-hardware@FreeBSD.ORG Fri Mar 12 09:36:40 2004 Return-Path: Delivered-To: freebsd-hardware@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 6F26416A4CE for ; Fri, 12 Mar 2004 09:36:40 -0800 (PST) Received: from mta1.lbl.gov (mta1.lbl.gov [128.3.41.24]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4B66B43D41 for ; Fri, 12 Mar 2004 09:36:40 -0800 (PST) (envelope-from j_guojun@lbl.gov) Received: from mta1.lbl.gov (localhost [127.0.0.1]) by mta1.lbl.gov (8.12.10/8.12.10) with ESMTP id i2CHabwb023820 for ; Fri, 12 Mar 2004 09:36:38 -0800 (PST) Received: from lbl.gov (gracie.lbl.gov [131.243.2.175]) by mta1.lbl.gov (8.12.10/8.12.10) with ESMTP id i2CHabam023815; Fri, 12 Mar 2004 09:36:37 -0800 (PST) Sender: jin@lbl.gov Message-ID: <4051F524.619DAACD@lbl.gov> Date: Fri, 12 Mar 2004 09:36:36 -0800 From: "Jin Guojun [DSD]" X-Mailer: Mozilla 4.76 [en] (X11; U; FreeBSD 4.9-RELEASE i386) X-Accept-Language: zh, zh-CN, en MIME-Version: 1.0 To: "Brian D.Moffet" References: <9D5B14F0-7448-11D8-80C3-000A957CD220@moffetimages.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit cc: Artem Koutchine cc: "freebsd-hardware@freebsd.org" Subject: Re: Multiprocessor system VS one processor system X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 12 Mar 2004 17:36:40 -0000 I do not think FreeBSD has yet supported SMP thread, which I hoped to happen for a long time. -Jin "Brian D.Moffet" wrote: > If I remember correctly, FreeBSD (4.8 I believe) will run multiple > threads of one process on multiple CPUs, correct? Or am I seeing > something very odd on my multi-thread test (with 2 CPUs)? > > Brian > > On Friday, March 12, 2004, at 09:02 AM, Simon wrote: > > > > > While FreeBSD 4.9 can only run one process per CPU, in a multi-user > > environment, you will have multiple processes running on multiple CPUs > > at the same time. You can't do this with 1 CPU, even if that one CPU > > is faster. Of course, an outdated dual CPU server is not a lot faster > > than > > a 2x+ faster newer single CPU server. > > -- > Brian D. Moffet -- Film and Digital Media Dept. > 1156 High Street, Santa Cruz CA 95064 > 831-459-4242