Received: with ECARTIS (v1.0.0; list netdev); Sun, 06 Apr 2003 09:42:23 -0700 (PDT) Received: from mail.enyo.de (gw.enyo.de [212.9.189.178]) by oss.sgi.com (8.12.3/8.12.5) with SMTP id h36GgIDH021311 for ; Sun, 6 Apr 2003 09:42:19 -0700 Received: from [212.9.189.171] (helo=deneb.enyo.de) by mail.enyo.de with esmtp (Exim 3.34 #2) id 192DDf-0006nO-00; Sun, 06 Apr 2003 18:42:11 +0200 Received: from fw by deneb.enyo.de with local (Exim 3.34 #4) id 192DDf-0000WI-00; Sun, 06 Apr 2003 18:42:11 +0200 To: jamal Cc: netdev@oss.sgi.com Subject: Re: [fw@deneb.enyo.de: Route cache performance under stress] From: Florian Weimer Date: Sun, 06 Apr 2003 18:42:11 +0200 In-Reply-To: <20030406110728.G68419@shell.cyberus.ca> (jamal's message of "Sun, 6 Apr 2003 11:14:50 -0400 (EDT)") Message-ID: <87wui71st8.fsf@deneb.enyo.de> User-Agent: Gnus/5.090017 (Oort Gnus v0.17) Emacs/21.2 (gnu/linux) References: <20030405165016.GA32361@outpost.ds9a.nl> <20030405134350.N68419@shell.cyberus.ca> <873ckwftal.fsf@deneb.enyo.de> <20030405180607.P68419@shell.cyberus.ca> <87n0j3ltf0.fsf@deneb.enyo.de> <20030406110728.G68419@shell.cyberus.ca> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Spam-Checker-Version: SpamAssassin 2.50 (1.173-2003-02-20-exp) X-archive-position: 2186 X-ecartis-version: Ecartis v1.0.0 Sender: netdev-bounce@oss.sgi.com Errors-to: netdev-bounce@oss.sgi.com X-original-sender: fw@deneb.enyo.de Precedence: bulk X-list: netdev Content-Length: 510 Lines: 17 jamal writes: > cat /proc/net/rt_cache_stat > Should give us a lot more info. I'll try to obtain the data points you requested. >> > Our data was collected on a real ISP which hosts a lot of web >> > servers and was being constantly DOSed. I dont think you can get >> > more real world than that. >> >> Did you look at a router, or at a host? > > As a router, but the hash compute shouldnt matter. Slow path ist faster on hosts than on routers which substantial routing tables, isn't it?