From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Friesen Subject: Re: intel 82599 multi-port performance Date: Mon, 26 Sep 2011 08:20:49 -0600 Message-ID: <4E808A41.8040902@genband.com> References: <4E805359.2080600@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: netdev To: "J.Hwan Kim" Return-path: Received: from exprod7og126.obsmtp.com ([64.18.2.206]:59799 "EHLO exprod7og126.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751506Ab1IZOVK (ORCPT ); Mon, 26 Sep 2011 10:21:10 -0400 In-Reply-To: <4E805359.2080600@gmail.com> Sender: netdev-owner@vger.kernel.org List-ID: On 09/26/2011 04:26 AM, J.Hwan Kim wrote: > Hi, everyone > > Now, I'm testing a network card including intel 82599. > In our experiment, with the driver modified with ixgbe and multi-port > enabled, What do you mean by "modified with ixgbe and multi-port enabled"? You shouldn't need to do anything special to use both ports. > rx performance of each port with 10Gbps of 64bytes frame is > a half than when only 1 port is used. Sounds like a cpu limitation. What is your cpu usage? How are your interrupts routed? Are you using multiple rx queues? Chris -- Chris Friesen Software Developer GENBAND chris.friesen@genband.com www.genband.com