From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <rixed@happyleptic.org>
Received: from mail2-relais-roc.national.inria.fr (mail2-relais-roc.national.inria.fr [192.134.164.83])
	by sympa.inria.fr (Postfix) with ESMTPS id 8D2437EE25
	for <caml-list@sympa.inria.fr>; Fri, 18 Oct 2013 19:52:32 +0200 (CEST)
Received-SPF: None (mail2-smtp-roc.national.inria.fr: no sender
  authenticity information available from domain of
  rixed@happyleptic.org) identity=pra; client-ip=5.135.156.187;
  receiver=mail2-smtp-roc.national.inria.fr;
  envelope-from="rixed@happyleptic.org";
  x-sender="rixed@happyleptic.org";
  x-conformance=sidf_compatible
Received-SPF: None (mail2-smtp-roc.national.inria.fr: no sender
  authenticity information available from domain of
  rixed@happyleptic.org) identity=mailfrom;
  client-ip=5.135.156.187;
  receiver=mail2-smtp-roc.national.inria.fr;
  envelope-from="rixed@happyleptic.org";
  x-sender="rixed@happyleptic.org";
  x-conformance=sidf_compatible
Received-SPF: None (mail2-smtp-roc.national.inria.fr: no sender
  authenticity information available from domain of
  postmaster@pim.happyleptic.org) identity=helo;
  client-ip=5.135.156.187;
  receiver=mail2-smtp-roc.national.inria.fr;
  envelope-from="rixed@happyleptic.org";
  x-sender="postmaster@pim.happyleptic.org";
  x-conformance=sidf_compatible
X-IronPort-Anti-Spam-Filtered: true
X-IronPort-Anti-Spam-Result: AtAGAFd0YVIFh5y7/2dsb2JhbABagwdGA75lB4EaFnSCJgEFOk8LISUPBSghiB3BIY9dLoJxgQoDmAgBkgeDJg
X-IPAS-Result: AtAGAFd0YVIFh5y7/2dsb2JhbABagwdGA75lB4EaFnSCJgEFOk8LISUPBSghiB3BIY9dLoJxgQoDmAgBkgeDJg
X-IronPort-AV: E=Sophos;i="4.93,524,1378850400"; 
   d="scan'208";a="37702961"
Received: from pim.happyleptic.org ([5.135.156.187])
  by mail2-smtp-roc.national.inria.fr with ESMTP/TLS/DHE-RSA-AES128-SHA; 18 Oct 2013 19:52:30 +0200
Received: from rixed.happyleptic.org ([82.67.194.89] helo=dell.happyleptic.org)
	by pim.happyleptic.org with esmtps (TLS1.2:DHE_RSA_AES_128_CBC_SHA1:128)
	(Exim 4.80)
	(envelope-from <rixed@happyleptic.org>)
	id 1VXEDv-0000pJ-8a
	for caml-list@inria.fr; Fri, 18 Oct 2013 19:52:31 +0200
Received: from rixed by dell.happyleptic.org with local (Exim 4.80)
	(envelope-from <rixed@happyleptic.org>)
	id 1VXEDp-0001gM-Am
	for caml-list@inria.fr; Fri, 18 Oct 2013 19:52:25 +0200
Date: Fri, 18 Oct 2013 19:52:25 +0200
From: rixed@happyleptic.org
To: OCaml Mailing List <caml-list@inria.fr>
Message-ID: <20131018175225.GA6256@dell.happyleptic.org>
References: <CAKS5mhSbRU50H5ciHEbuSC1HMxiNDkCys0jM8RipqNFvr6ZVaQ@mail.gmail.com>
 <20131018115553.GA28679@ombreroze.happyleptic.org>
 <20131018115955.GG25839@dark.recoil.org>
 <20131018121612.GB28679@ombreroze.happyleptic.org>
 <20131018122018.GJ25839@dark.recoil.org>
 <CAP_800r96-i3WGjO1zLqQ8bWxAUMyqL+=O=GF_y2Jbw4wTkzcQ@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <CAP_800r96-i3WGjO1zLqQ8bWxAUMyqL+=O=GF_y2Jbw4wTkzcQ@mail.gmail.com>
User-Agent: Mutt/1.5.21 (2010-09-15)
Subject: Re: [Caml-list] IPv6 packet parsing

-[ Fri, Oct 18, 2013 at 10:20:19AM -0400, Markus Mottl ]----
> It may also be of interest to investigate the use of "splice" and
> "tee" on Linux to avoid frequent switches between user- and kernel
> mode and to duplicate I/O streams without having to copy the data
> (zero copy).

I feel sorry to be clueless twice in a row, but how are these new syscalls
supposed to help sniffing & parsing packets?