netdev - Re: [PATCH] af_unix: implement socket filter

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Date:	Tue, 18 Jan 2011 21:19:13 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Alban Crequy <alban.crequy@...labora.co.uk>
Cc:	Ian Molton <ian.molton@...labora.co.uk>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, davem@...emloft.net,
	ebiederm@...ssion.com, xemul@...nvz.org, davidel@...ilserver.org
Subject: Re: [PATCH] af_unix: implement socket filter

Le mardi 18 janvier 2011 à 17:51 +0000, Alban Crequy a écrit :
> Le Tue, 18 Jan 2011 18:22:41 +0100,
> Eric Dumazet <eric.dumazet@...il.com> a écrit :

> > Any idea on performance cost adding sk_filter() call ?
> 
> Ian will write a performance test and repost the patch with some stats.
> I don't know about the performance cost.

Dont spend time on this, it was more a question for myself ;)

Cost should be very small, unless complex filter is used, and I have a
JIT compiler for BPF on x86_64, will post it when net-next-2.6 reopens.



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