From owner-freebsd-net@FreeBSD.ORG Fri Feb 10 15:31:56 2006 Return-Path: X-Original-To: freebsd-net@freebsd.org Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4C47B16A420 for ; Fri, 10 Feb 2006 15:31:56 +0000 (GMT) (envelope-from cswiger@mac.com) Received: from pi.codefab.com (pi.codefab.com [199.103.21.227]) by mx1.FreeBSD.org (Postfix) with ESMTP id D85A443D70 for ; Fri, 10 Feb 2006 15:31:45 +0000 (GMT) (envelope-from cswiger@mac.com) Received: from localhost (localhost [127.0.0.1]) by pi.codefab.com (Postfix) with ESMTP id 674F95CA3; Fri, 10 Feb 2006 10:31:45 -0500 (EST) Received: from pi.codefab.com ([127.0.0.1]) by localhost (pi.codefab.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 14957-09; Fri, 10 Feb 2006 10:31:44 -0500 (EST) Received: from [192.168.1.3] (pool-68-160-209-142.ny325.east.verizon.net [68.160.209.142]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by pi.codefab.com (Postfix) with ESMTP id 8B4625C50; Fri, 10 Feb 2006 10:31:44 -0500 (EST) Message-ID: <43ECB1E7.8010308@mac.com> Date: Fri, 10 Feb 2006 10:31:51 -0500 From: Chuck Swiger Organization: The Courts of Chaos User-Agent: Thunderbird 1.5 (Windows/20051201) MIME-Version: 1.0 To: Marcos Bedinelli References: <7bb8f24157080b6aaacb897a99259df9@madhaus.cns.utoronto.ca> In-Reply-To: <7bb8f24157080b6aaacb897a99259df9@madhaus.cns.utoronto.ca> X-Enigmail-Version: 0.94.0.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Virus-Scanned: amavisd-new at codefab.com Cc: freebsd-net@freebsd.org Subject: Re: Network performance in a dual CPU system X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 10 Feb 2006 15:31:56 -0000 Marcos Bedinelli wrote: [ ... ] > Does anyone know whether a dual CPU system can help us improve the > situation? I was wondering if the software interrupt threads would be > divided between the two processors. > > Any help/insight is greatly appreciated Adding SMP into the mix makes thing more complicated, and you should consider other alternatives first before spending money on hardware that might not help. vmstat -i output would be useful to know, along with what your machine is doing-- is it routing traffic, running a firewall (if so, which), etc. You might take a look at "man polling" and see whether enabling that improves your situation. -- -Chuck