netdev - Re: fedora 14 kernel performance with ip forwarding workload

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Date:	Wed, 06 Apr 2011 23:11:09 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	"Brandeburg, Jesse" <jesse.brandeburg@...el.com>
Cc:	David Miller <davem@...emloft.net>,
	"acme@...stprotocols.net" <acme@...stprotocols.net>,
	"jesse.brandeburg@...il.com" <jesse.brandeburg@...il.com>,
	"fedora-kernel-list@...hat.com" <fedora-kernel-list@...hat.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: fedora 14 kernel performance with ip forwarding workload

Le mercredi 06 avril 2011 à 14:08 -0700, Brandeburg, Jesse a écrit :
> Thanks for the replies, 
> Yes indeed, I bet that conntrack was the item that caused the grief I saw.  
> In fact turning off CONFIG_NETFILTER disables conntrack and solved my 
> problem. :-)
> 
> Now the question is how to get the netfiltery/conntracky goodness without 
> impacting those who want to go fast, maybe without a helmet.

Thats pretty simple, just load netfilter modules if necessary.

If not loaded, cost is pretty small, being predicted branches.



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