From: Benjamin LaHaise <ben.lahaise@neterion.com>
Date: Tue, 4 Aug 2009 10:21:57 +0000 (+0000)
Subject: vxge: prefetch skb->data
X-Git-Tag: v2.6.32-rc1~703^2~463
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ea11bbe0c94b045fdefc05476b69a2eef999a9c4;p=pandora-kernel.git

vxge: prefetch skb->data

This patch implements prefetching of skb->data from a copy of the pointer
in the descriptor (which is already in the L1 cache at this point).  This
improves netperf rx performance (netperf -L 0,0 -c -H 192.168.254.2 -- -M
131072 -m 131072) by 4.9% on a P4 Xeon host.

Signed-off-by: Benjamin LaHaise <ben.lahaise@neterion.com>
Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com>
Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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