Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754129AbZKTPvq (ORCPT ); Fri, 20 Nov 2009 10:51:46 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753947AbZKTPvo (ORCPT ); Fri, 20 Nov 2009 10:51:44 -0500 Received: from huecha.unizar.es ([155.210.1.51]:45953 "EHLO huecha.unizar.es" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754076AbZKTPvn convert rfc822-to-8bit (ORCPT ); Fri, 20 Nov 2009 10:51:43 -0500 From: "=?utf-8?Q?=22J.A._Magall=C3=B3n=22?=" Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8BIT Subject: Performance of bonding driver Date: Fri, 20 Nov 2009 16:51:47 +0100 Message-Id: To: Linux-Kernel Mime-Version: 1.0 (Apple Message framework v1077) X-Mailer: Apple Mail (2.1077) X-Mail-Scanned: Criba 2.0 + Clamd & Bogofilter Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1449 Lines: 42 Hi... I have tw boxes which I linked together vi 2x gigabit interfaces and a 3Com switch. Each interface is: 02:0a.0 Ethernet controller: Intel Corporation 82541EI Gigabit Ethernet Controller 02:0b.0 Ethernet controller: Intel Corporation 82541EI Gigabit Ethernet Controller The switch is private for them, so there is no more taffic. One interface alone works pretty well: [ 3] local 192.168.1.208 port 37739 connected with 192.168.1.226 port 5001 [ ID] Interval Transfer Bandwidth [ 3] 0.0-10.0 sec 1.00 GBytes 861 Mbits/sec I loaded bondin driver with no parameters, and using iperf to test the connection I get: [ 5] local 192.168.1.208 port 5001 connected with 192.168.1.226 port 40036 [ ID] Interval Transfer Bandwidth [ 5] 0.0-10.0 sec 812 MBytes 679 Mbits/sec In the node which receives, two instances of iftop on slave interfaces show that load is balanced, but none flies higher than about 300 Mb/s. Any ideas ? Is bonding dependent on CPU power ? Boxes are P4-HT@2.8, 3Gb of RAM. TIA -- J.A. Magallon \ Software is like sex: \ It's better when it's free -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/