From owner-freebsd-net@FreeBSD.ORG Tue Jan 8 16:30:14 2013 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id 7A1E619B for ; Tue, 8 Jan 2013 16:30:14 +0000 (UTC) (envelope-from freebsd-net@m.gmane.org) Received: from plane.gmane.org (plane.gmane.org [80.91.229.3]) by mx1.freebsd.org (Postfix) with ESMTP id 3BC47B40 for ; Tue, 8 Jan 2013 16:30:14 +0000 (UTC) Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1Tsc4B-00006j-SH for freebsd-net@freebsd.org; Tue, 08 Jan 2013 17:30:19 +0100 Received: from 208.85.208.53 ([208.85.208.53]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 08 Jan 2013 17:30:19 +0100 Received: from atkin901 by 208.85.208.53 with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 08 Jan 2013 17:30:19 +0100 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-net@freebsd.org From: Mark Atkinson Subject: Re: To SMP or not to SMP Date: Tue, 08 Jan 2013 08:29:51 -0800 Lines: 20 Message-ID: References: <1357611958.66651.YahooMailClassic@web121603.mail.ne1.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: 208.85.208.53 User-Agent: Mozilla/5.0 (X11; FreeBSD i386; rv:17.0) Gecko/17.0 Thunderbird/17.0 In-Reply-To: <1357611958.66651.YahooMailClassic@web121603.mail.ne1.yahoo.com> X-Enigmail-Version: 1.4.6 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 08 Jan 2013 16:30:14 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 01/07/2013 18:25, Barney Cordoba wrote: > I have a situation where I have to run 9.1 on an old single core > box. Does anyone have a handle on whether it's better to build a > non SMP kernel or to just use a standard SMP build with just the > one core? Thanks. You can build a SMP kernel, but you'll get better performance (in my experience) with SCHED_4BSD on single cpu than with ULE. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (FreeBSD) Comment: Using GnuPG with undefined - http://www.enigmail.net/ iEYEARECAAYFAlDsSX8ACgkQrDN5kXnx8yYntACgophmypAll5NMMjsW3GRnkloY v6wAn0cPS9+/4xZyGCZ35Ttn4lK4b0t1 =Rlxm -----END PGP SIGNATURE-----