From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Greear Subject: Re: under-performing bonded interfaces Date: Wed, 16 Nov 2011 16:07:46 -0800 Message-ID: <4EC45052.10101@candelatech.com> References: <4EC44ECB.4050201@candelatech.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org To: Simon Chen Return-path: Received: from mail.candelatech.com ([208.74.158.172]:59934 "EHLO ns3.lanforge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750760Ab1KQAHw (ORCPT ); Wed, 16 Nov 2011 19:07:52 -0500 In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: On 11/16/2011 04:05 PM, Simon Chen wrote: > If used independently, I can get around 9.8Gbps. On each of them concurrently, or just one at a time? > [ 11.572857] ixgbe 0000:03:00.0: Multiqueue Enabled: Rx Queue count > = 24, Tx Queue count = 24 > [ 11.572861] ixgbe 0000:03:00.0: (PCI Express:5.0Gb/s:Width x4) > e8:9a:8f:23:42:1a > [ 11.572943] ixgbe 0000:03:00.0: MAC: 2, PHY: 8, SFP+: 3, PBA No: FFFFFF-0FF > [ 11.572944] ixgbe 0000:03:00.0: PCI-Express bandwidth available for > this card is not sufficient for optimal performance. > [ 11.572946] ixgbe 0000:03:00.0: For optimal performance a x8 > PCI-Express slot is required. Looks to me like it may be hardware related unless you are certain you can get both NICs running at high-speed independently of any bonding code... Thanks, Ben -- Ben Greear Candela Technologies Inc http://www.candelatech.com