| To: | "David S. Miller" <davem@xxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [PATCH bk-2.6.10] tg3:align IP headers from 5701 in PCI-X mode |
| From: | Jeff Garzik <jgarzik@xxxxxxxxx> |
| Date: | Mon, 10 Jan 2005 16:01:59 -0500 |
| Cc: | akepner@xxxxxxx, netdev@xxxxxxxxxxx |
| In-reply-to: | <20050110125001.4fe4d00b.davem@xxxxxxxxxxxxx> |
| References: | <Pine.LNX.4.33.0501031713460.16417-100000@xxxxxxxxxxxxxxxxxxxxx> <20050110125001.4fe4d00b.davem@xxxxxxxxxxxxx> |
| Sender: | netdev-bounce@xxxxxxxxxxx |
| User-agent: | Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.3) Gecko/20040922 |
David S. Miller wrote: On Mon, 3 Jan 2005 17:45:01 -0800 (PST) akepner@xxxxxxx 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
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