netdev - Re: [PATCH 1/3] if.h: add IFF_BRIDGE

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Date:	Thu, 11 Apr 2013 07:03:23 -0400
From:	Jamal Hadi Salim <jhs@...atatu.com>
To:	Antonio Quartulli <antonio@...n-mesh.com>
CC:	Stephen Hemminger <stephen@...workplumber.org>,
	"David S. Miller" <davem@...emloft.net>,
	"bridge@...ts.linux-foundation.org" 
	<bridge@...ts.linux-foundation.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: [PATCH 1/3] if.h: add IFF_BRIDGE_RESTRICTED flag

On 13-04-11 06:56 AM, Antonio Quartulli wrote:

> I just realised that :)
>
> By installing ebtables (meaning modules + userspace tool) my iperf test result
> drops from 81Mbps to 66Mbps: former without, latter with ebtables module enabled.
> I did this test between two devices connected with Fast Ethernet.
>


Please try tc like i said earlier ;->

cheers,
jamal

> I thought that most of the code is in netfilter, so shared with iptables, hence
> I expected a reasonable overhead why this is much worse.
>
> Does anybody have a clue about this? I should probably start a new thread on the
> netfilter mailing list.
>
> However this problem makes ebtables unusable at all.
>
> Suggestions are welcome :)
>
> Cheers,
>

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