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Date:	Tue, 27 Jan 2009 15:15:19 +0100
From:	Patrick McHardy <kaber@...sh.net>
To:	Paweł Staszewski <pstaszewski@...are.pl>
CC:	Linux Network Development list <netdev@...r.kernel.org>,
	Netfilter Development Mailinglist 
	<netfilter-devel@...r.kernel.org>
Subject: Re: Is this normal?

Paweł Staszewski wrote:
> I have Linux that works as Router + traffic management with connection 
> tracking enabled but without making NAT
> 
> About 600Mbit/s TX and 600Mbit/s RX forwarded traffic
> 
> iptables -L -n -v -t raw
> Chain PREROUTING (policy ACCEPT 3340M packets, 2623G bytes)
> pkts bytes target     prot opt in     out     source               
> destination
> 3339M 2621G NOTRACK    all  --  *      *       0.0.0.0/0            
> 0.0.0.0/0
> 
> 
> kernel 2.6.28.2
> CPU: Core 2, speed 2999.98 MHz (estimated)
> Counted CPU_CLK_UNHALTED events (Clock cycles when not halted) with a 
> unit mask of 0x00 (Unhalted core cycles) count 100000
> samples  %        image name               app name                 
> symbol name
> 14544205 15.8604  vmlinux                  vmlinux                  
> ctnetlink_del_expect

This doesn't seem to be accurate, I'm guessing its really
ctnetlink_conntrack_event().

Does this patch make any difference?

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