Received: with ECARTIS (v1.0.0; list netdev); Wed, 05 Jan 2005 00:23:40 -0800 (PST) Received: from mail1.slu.se (mail1.slu.se [130.238.96.11]) by oss.sgi.com (8.13.0/8.13.0) with ESMTP id j058N8sL014258 for ; Wed, 5 Jan 2005 00:23:29 -0800 Received: from robur.slu.se (robur.slu.se [130.238.98.12]) by mail1.slu.se (8.12.10/8.12.10) with ESMTP id j05KMtuA001260; Wed, 5 Jan 2005 21:22:55 +0100 Received: by robur.slu.se (Postfix, from userid 1000) id 455B8EC0BC; Wed, 5 Jan 2005 21:22:55 +0100 (CET) From: Robert Olsson MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <16860.19615.251360.169722@robur.slu.se> Date: Wed, 5 Jan 2005 21:22:55 +0100 To: jeremy.guthrie@berbee.com Cc: netdev@oss.sgi.com, Robert Olsson , Stephen Hemminger Subject: Re: V2.4 policy router operates faster/better than V2.6 In-Reply-To: <200501051325.40616.jeremy.guthrie@berbee.com> References: <200501031455.26980.jeremy.guthrie@berbee.com> <16860.5674.612383.986202@robur.slu.se> <200501051135.03493.jeremy.guthrie@berbee.com> <200501051325.40616.jeremy.guthrie@berbee.com> X-Mailer: VM 7.18 under Emacs 21.3.1 X-Virus-Scanned: ClamAV 0.80/650/Sun Jan 2 19:00:02 2005 clamav-milter version 0.80j on 127.0.0.1 X-Virus-Status: Clean X-archive-position: 13432 X-ecartis-version: Ecartis v1.0.0 Sender: netdev-bounce@oss.sgi.com Errors-to: netdev-bounce@oss.sgi.com X-original-sender: Robert.Olsson@data.slu.se Precedence: bulk X-list: netdev Jeremy M. Guthrie writes: > After smp_affinity adjustments and turning off IRQ balancing. > > eth3 Link encap:Ethernet HWaddr 00:02:B3:D5:7E:30 > RX packets:537271635 errors:2377048 dropped:2377048 overruns:1849169 Worse? Yes. I'll remember Hararld moved rt_cache_stat /proc/net/stats/ and wrote a new utility for it. Should be in iproute2 package. Stephen knows the details. Otherwise change path in rtstat. You need this to relate and verify the load. Check throughtput and how packet load is used with 2.4. /proc/net/softnet_stat and rtstat. Also meditate how the comparison can be fair wrt taffic patterns. Do smame with 2.6. Prepare for a oprofile. I'm lazy and compile the stuff I use into kernel if you can get the same result w. nodules it's ok. --ro