netdev - Re: [PATCH] netfilter: unfold two critical loops in ip_packet

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Message-ID: <499E802D.1010909@trash.net>
Date:	Fri, 20 Feb 2009 11:04:29 +0100
From:	Patrick McHardy <kaber@...sh.net>
To:	Eric Dumazet <dada1@...mosbay.com>
CC:	"David S. Miller" <davem@...emloft.net>,
	Netfilter Developers <netfilter-devel@...r.kernel.org>,
	Linux Network Development list <netdev@...r.kernel.org>
Subject: Re: [PATCH] netfilter: unfold two critical loops in ip_packet_match()

Eric Dumazet wrote:
> While doing oprofile tests I noticed two loops are not properly unrolled by gcc
> 
> Using a hand coded unrolled loop provides nice speedup : ipt_do_table
> credited of 2.52 % of cpu instead of 3.29 % in tbench.

Applied, thanks Eric.
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