netdev - Re: multi bpf filter will impact performance?

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Message-ID: <1291190956.2856.485.camel@edumazet-laptop>
Date:	Wed, 01 Dec 2010 09:09:16 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Changli Gao <xiaosuo@...il.com>
Cc:	Rui <wirelesser@...il.com>, netdev@...r.kernel.org
Subject: Re: multi bpf filter will impact performance?

Le mercredi 01 décembre 2010 à 15:59 +0800, Changli Gao a écrit :
> On Wed, Dec 1, 2010 at 3:47 PM, Eric Dumazet <eric.dumazet@...il.com> wrote:
> > Le mercredi 01 décembre 2010 à 15:36 +0800, Changli Gao a écrit :
> >
> > Oh well, it seems you read over my neck, I was preparing a patch with
> > SKF_AD_RXHASH and SKF_AD_CPU
> >
> >
> 
> Nice to hear it. :)
> 
> There are too many filters: bpf, iptables and tc. Maybe an unified one
> such as nft is needed. Then the duplicate code would be reduced. Maybe
> it is just a good dream.
> 

You forgot the rxhash function as well, it would be nice to augment it
with custom code if necessary.

A dream would be to have a native compiler, and not interpret pseudo
code...

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