From mboxrd@z Thu Jan 1 00:00:00 1970 From: Otto Sabart Subject: Re: [BUG] net: performance regression on ixgbe (Intel 82599EB 10-Gigabit NIC) Date: Mon, 7 Dec 2015 12:28:37 +0100 Message-ID: <20151207112837.GA14417@redhat.com> References: <20151203162627.GA8989@redhat.com> <566078AA.5040804@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: netdev@vger.kernel.org, Jeff Kirsher , Jirka Hladky , Adam Okuliar , Kamil Kolakowski , "e1000-devel@lists.sourceforge.net" To: Alexander Duyck Return-path: Received: from mx1.redhat.com ([209.132.183.28]:58412 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755337AbbLGL2j (ORCPT ); Mon, 7 Dec 2015 06:28:39 -0500 Content-Disposition: inline In-Reply-To: <566078AA.5040804@gmail.com> Sender: netdev-owner@vger.kernel.org List-ID: > Hi Ota, > > It looks like there were a few changes that went through that could be > causing the regression. The most obvious one that jumps out at me is commit > 72bfd32d2f84 ("ixgbe: disable LRO by default"). As such one thing you might > try doing is turning on LRO support via ethtool -k to see if that is the > issue you are seeing. > Hi Alex, enabling LRO resolved the problem. Thank you! Ota