From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Garzik Subject: Re: [PATCH bk-2.6.10] tg3:align IP headers from 5701 in PCI-X mode Date: Mon, 10 Jan 2005 16:01:59 -0500 Message-ID: <41E2ED47.9080909@pobox.com> References: <20050110125001.4fe4d00b.davem@davemloft.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Cc: akepner@sgi.com, netdev@oss.sgi.com Return-path: To: "David S. Miller" In-Reply-To: <20050110125001.4fe4d00b.davem@davemloft.net> Sender: netdev-bounce@oss.sgi.com Errors-to: netdev-bounce@oss.sgi.com List-Id: netdev.vger.kernel.org David S. Miller wrote: > On Mon, 3 Jan 2005 17:45:01 -0800 (PST) > akepner@sgi.com wrote: > > >>We still have customers using 5701 cards, and their syslogs fill with >>"kernel unaligned access" messages. They may also see a significant >>performance degradation due to the expense of unaligned accesses on >>ia64. Here's a patch to address this (it is almost the same as the >>patch which was discussed in >>http://marc.theaimsgroup.com/?l=linux-netdev&m=109770128816605&w=2). >> >>In a quick throughput test, I found that this could improve throughput >>by ~30% on an Altix. > > > Let's just do this all the time for this case, adding new config > options for stuff like this does nothing more than create confusion. agreed. Jeff