From owner-freebsd-ipfw Tue Nov 19 5:23: 0 2002 Delivered-To: freebsd-ipfw@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 328F337B404 for ; Tue, 19 Nov 2002 05:22:59 -0800 (PST) Received: from xorpc.icir.org (xorpc.icir.org [192.150.187.68]) by mx1.FreeBSD.org (Postfix) with ESMTP id C50F343E77 for ; Tue, 19 Nov 2002 05:22:58 -0800 (PST) (envelope-from rizzo@xorpc.icir.org) Received: from xorpc.icir.org (localhost [127.0.0.1]) by xorpc.icir.org (8.12.3/8.12.3) with ESMTP id gAJDMeAh059813; Tue, 19 Nov 2002 05:22:40 -0800 (PST) (envelope-from rizzo@xorpc.icir.org) Received: (from rizzo@localhost) by xorpc.icir.org (8.12.3/8.12.3/Submit) id gAJDMeG0059812; Tue, 19 Nov 2002 05:22:40 -0800 (PST) (envelope-from rizzo) Date: Tue, 19 Nov 2002 05:22:40 -0800 From: Luigi Rizzo To: Alexander Langer Cc: freebsd-ipfw@FreeBSD.ORG Subject: Re: ipfw2 on SMP Message-ID: <20021119052240.B59522@xorpc.icir.org> References: <20021119105904.GK4666@fump.kawo2.rwth-aachen.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <20021119105904.GK4666@fump.kawo2.rwth-aachen.de>; from alex@big.endian.de on Tue, Nov 19, 2002 at 11:59:04AM +0100 Sender: owner-freebsd-ipfw@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG all the network stack is still under Giant so the second CPU won't help much in the lower levels of the stack (including ipfw2 and bridging). DEVICE_POLLING being incompatible with SMP is an orthogonal issue. cheers luigi On Tue, Nov 19, 2002 at 11:59:04AM +0100, Alexander Langer wrote: > HI! > > Does ipfw2 (box does use DEVICE_POLLING) on -CURRENT benefit from 2 CPUs? > > We have quite the same incoming / outgoing traffic here, but I don't > know the actual design of ipfw2 or the bridging-code, so I > wondered if that would benefit from a 2nd CPU, or if the CPUs lock > theirselves to the inefficiency. > > Comments? Stats? Already doing this somewhere? :) > > Thanks > > Alex > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-ipfw" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-ipfw" in the body of the message