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Subject: Re: [PATCH] af_unix: implement socket filter
From: Eric Dumazet <eric.dumazet@gmail.com>
To: Alban Crequy <alban.crequy@collabora.co.uk>
Cc: Ian Molton <ian.molton@collabora.co.uk>, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org, davem@davemloft.net,
        ebiederm@xmission.com, xemul@openvz.org, davidel@xmailserver.org
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Date: Tue, 18 Jan 2011 21:19:13 +0100
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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@gmail.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.