From owner-freebsd-questions Mon Mar 18 13:13:57 2002 Delivered-To: freebsd-questions@freebsd.org Received: from mailhub.yumyumyum.org (dsl092-171-091.wdc1.dsl.speakeasy.net [66.92.171.91]) by hub.freebsd.org (Postfix) with SMTP id 27B3637B402 for ; Mon, 18 Mar 2002 13:13:52 -0800 (PST) Received: (qmail 53634 invoked from network); 18 Mar 2002 21:13:15 -0000 Received: from dsl092-171-091.wdc1.dsl.speakeasy.net (66.92.171.91) by dsl092-171-091.wdc1.dsl.speakeasy.net with SMTP; 18 Mar 2002 21:13:15 -0000 Date: Mon, 18 Mar 2002 16:13:15 -0500 (EST) From: Kenneth Culver To: Tony Vickers Cc: freebsd-questions@FreeBSD.ORG Subject: Re: SMP In-Reply-To: Message-ID: <20020318161110.S53554-100000@alpha.yumyumyum.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG > Can FreeBSD support more than one CPU? All the docs that I have found > touch on the subject, but never really answer the question. I plan on > moving from linux to FreeBSD on our database systems, however this > question could make or break the out come. Thanks. Yes FreeBSD supports SMP, but it won't make much of a difference on a FreeBSD 4.x machine for databases. Databases tend to have a lot of processes trying to access the disk at once. This requires kernel service and right now in 4.x FreeBSD can only have one processor running the kernel at once. FreeBSD 5.0 (planned for release in November) will correct this, and most likely be as fast as (if not faster than) anything out there. Ken To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message