From owner-freebsd-net Wed Oct 9 16:27:10 2002 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 46F2237B404 for ; Wed, 9 Oct 2002 16:27:09 -0700 (PDT) Received: from mailtoaster1.pipeline.ch (mailtoaster1.pipeline.ch [62.48.0.70]) by mx1.FreeBSD.org (Postfix) with SMTP id 6E9BD43E42 for ; Wed, 9 Oct 2002 16:27:07 -0700 (PDT) (envelope-from oppermann@tix.ch) Received: (qmail 38794 invoked from network); 9 Oct 2002 23:24:09 -0000 Received: from unknown (HELO tix.ch) ([62.48.0.54]) (envelope-sender ) by mailtoaster1.pipeline.ch (qmail-ldap-1.03) with SMTP for ; 9 Oct 2002 23:24:09 -0000 Message-ID: <3DA4BB08.D7759E02@tix.ch> Date: Thu, 10 Oct 2002 01:26:00 +0200 From: Andre Oppermann X-Mailer: Mozilla 4.76 [en] (Windows NT 5.0; U) X-Accept-Language: en MIME-Version: 1.0 To: Luigi Rizzo Cc: Mike Silbersack , Christopher Smith , hardware@FreeBSD.ORG, net@FreeBSD.ORG Subject: Re: High interrupt load on firewalls References: <20021009024946.D2682-100000@patrocles.silby.com> <20021009085034.E48709@carp.icir.org> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org Luigi Rizzo wrote: > > my general attitude is that when you are hitting 100% cpu > utilization, small performance improvements such as those > deriving from m_getcl() are not relevant, and you might > want to restructure your sw in order to get substantial > performance improvements. > > In the specific case, at least reading from the comments, > it seems that firewall processing is really the main > cpu consumer, so they should revise their ruleset more > than move to a different board, or use polling (i have polling > patches for the intel gigabit adapter) > > What are the actual packet rates at which you are seeing problems ? He probably can't tell because of the 32bit ifstats counters. They wrap every other minute on a well loaded Gigabit card. -- Andre > cheers > luigi > > On Wed, Oct 09, 2002 at 02:53:43AM -0500, Mike Silbersack wrote: > > > > On Wed, 9 Oct 2002, Christopher Smith wrote: > > > > > No, we use IPFilter (and that definitely isn't going to change any time > > > soon). > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-net" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message