From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lb0-f171.google.com (mail-lb0-f171.google.com [209.85.217.171]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id 48E792012AC; Wed, 9 May 2012 12:15:44 -0700 (PDT) Received: by lbom4 with SMTP id m4so1108018lbo.16 for ; Wed, 09 May 2012 12:15:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; bh=jxSI+RPLsz1FTEOOJCFbE7s5KZiX0rztHRFNG/UMqNM=; b=FPh5MDqnAo36wNgO+mfFGNGDoxzn5GENwIJJkeO2sfwXSqBR8t0dAW3lwMYLj84eF5 tPP99Smteyf5WUReZzGdE2EAE4tHXo6B3u+Hl62zwPKb2l6m+iVA2yAnKk6sqqKA8d+x Z98+gsNiYqTrEr2jXkSCFOm171gHdCzeN2F6Y2dyAxTzH+bxFfZVRYOoUcffMXVl8NhX FgZdzMVkX0UrZWgnsAygDQELd7ivhW/FinwITr8OA1eaddUqEVCNXzCfwzKVT0/n92B7 mAu0fgzoWn+6cCnLmBt/6mahYAA6MAQBq212Zs789q+Fdyiyh7bmvSRII79XwXlZiDYj Zp4g== MIME-Version: 1.0 Received: by 10.152.114.106 with SMTP id jf10mr1318482lab.16.1336590941926; Wed, 09 May 2012 12:15:41 -0700 (PDT) Received: by 10.112.132.98 with HTTP; Wed, 9 May 2012 12:15:41 -0700 (PDT) In-Reply-To: References: <4FA9FDC0.9010600@superduper.net> Date: Wed, 9 May 2012 12:15:41 -0700 Message-ID: From: Dave Taht To: =?ISO-8859-1?Q?Roger_J=F8rgensen?= Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: codel@lists.bufferbloat.net, bloat Subject: Re: [Codel] [Bloat] The challenge X-BeenThere: codel@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: CoDel AQM discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 May 2012 19:15:45 -0000 On Wed, May 9, 2012 at 12:10 PM, Roger J=F8rgensen wrote= : > On Wed, May 9, 2012 at 7:16 AM, Simon Barber wrote= : >> One question now remains - will codel AQM be sufficient on it's own in >> getting delays down to levels that users are happy with for the common >> latency sensitive interactive traffic - VoIP, gaming and Skype for examp= le - >> or are the further reductions that can be had with traffic classificatio= n >> and smart queuing algorithms necessary? The nicest part about codel on i= t's >> own is that it works on opaque packets - it will handle VPNs and traffic >> within them nicely. It gets away from all the complexity required to >> classify traffic in a world where traffic is often trying to hide. > > I'm more worried about how long cascades of codel code in equipment > will work together, add lots of traffic to the mix, just how will it > behave then? Dunno. I look forward to finding out. I put up debian packages of the kernel for ubuntu 12.4 here: http://huchra.bufferbloat.net/~d/codel/linux/ You'll need to build your own iproute2 from the current (v12) patch set. Basic tests are throttling down your network card to like 100Mbit and trying it, unless you have major cpu that can saturate gigE or higher. I'm mostly using netperf from svn head. > > > -- > > Roger Jorgensen=A0 =A0 =A0 =A0 =A0=A0=A0| ROJO9-RIPE > rogerj@gmail.com=A0 =A0 =A0 =A0=A0 =A0| - IPv6 is The Key! > http://www.jorgensen.no=A0=A0 | roger@jorgensen.no --=20 Dave T=E4ht SKYPE: davetaht US Tel: 1-239-829-5608 http://www.bufferbloat.net