From: Stephen Hemminger <shemminger@vyatta.com>
Date: Tue, 18 Aug 2009 15:17:10 +0000 (+0000)
Subject: sky2: no recycling
X-Git-Tag: v2.6.32-rc1~703^2~339
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=724b694225e711f95e6265afdbc304c9e7eb3721;p=pandora-kernel.git

sky2: no recycling

Recycling turns out to be a bad idea!  For most use cases, the
packet can not be reused: TCP packets are cloned. Even for the ideal
case of forwarding, it hurts performance because of CPU ping/pong.
On a multi-core system forwarding of 64 byte packets is worse
much worse: recycling = 24% forwarded vs no recycling = 42% forwarded

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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