From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wg0-f47.google.com (mail-wg0-f47.google.com [74.125.82.47]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client did not present a certificate) by huchra.bufferbloat.net (Postfix) with ESMTPS id 90E4321F0B9 for ; Sun, 2 Sep 2012 17:18:21 -0700 (PDT) Received: by wgbfa7 with SMTP id fa7so2729183wgb.28 for ; Sun, 02 Sep 2012 17:18:19 -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=2CfgK5uFVpQ/ZdgbhC0je11mMga1sO0OuKWWaXz6ikc=; b=xkLCwt9qtfWDS05gkUO8bo2vUK+FHK0syXC3kgnTT8GKLJjjuUB1fXfM9ezRv1LEQL Mu8yVZPHF2RdhhA9LsRi3RpJP8uEv9LSRjXXHhth4ZcCYiCOWq5/lRzIKPbOYx2+IYRI qmA8jIL5uxu5Tigjm0ObdzvbdfNPhatq3eHzjmAuOI8JaRB/UNQi8xleuE6NjzPWk2W5 yv0kwzc4o+/iouCtsEWK9cohFVWN2MYLBlA839PEfDe/hhO6cmI8e5V207oOrpgX9VIu OLD+8qJYhE8lCs2HVidy112JoReW6D5pxv1AoFT7d0p6bUNOUJa48T6TA8ujMXq5wwr7 Gfxw== MIME-Version: 1.0 Received: by 10.216.71.82 with SMTP id q60mr9165456wed.64.1346631499669; Sun, 02 Sep 2012 17:18:19 -0700 (PDT) Received: by 10.223.159.134 with HTTP; Sun, 2 Sep 2012 17:18:19 -0700 (PDT) In-Reply-To: <1346628216.2563.70.camel@edumazet-glaptop> References: <1346396137.2586.301.camel@edumazet-glaptop> <5040DDE9.7030507@hp.com> <1346430207.7996.11.camel@edumazet-glaptop> <1346504012.7996.68.camel@edumazet-glaptop> <1346628216.2563.70.camel@edumazet-glaptop> Date: Sun, 2 Sep 2012 17:18:19 -0700 Message-ID: From: Dave Taht To: Eric Dumazet Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: codel@lists.bufferbloat.net Subject: Re: [Codel] fq_codel : interval servo 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: Mon, 03 Sep 2012 00:18:22 -0000 On Sun, Sep 2, 2012 at 4:23 PM, Eric Dumazet wrote= : > On Sun, 2012-09-02 at 11:08 -0700, Dave Taht wrote: >> On Sat, Sep 1, 2012 at 5:53 AM, Eric Dumazet wr= ote: >> > On Fri, 2012-08-31 at 09:59 -0700, Dave Taht wrote: >> > >> >> I realize that 10GigE and datacenter host based work is sexy and fun, >> >> but getting stuff that runs well in today's 1-20Mbit environments is >> >> my own priority, going up to 100Mbit, with something that can be >> >> embedded in a SoC. The latest generation of SoCs all do QoS in >> >> hardware... badly. >> > >> > Maybe 'datacenter' word was badly chosen and you obviously jumped on i= t, >> > because it meant different things for you. >> >> I am hypersensitive about optimizing for sub-ms problems when there are >> huge multi-second problems like in cable, wifi, and cellular. Recent pap= er: >> >> http://conferences.sigcomm.org/sigcomm/2012/paper/cellnet/p1.pdf > > Yes. Take a deep breath, please. > > In France, we use to say : "Rome ne s'est pas faite en un jour" > > It means you wont solve all your problems at once. Comforting. > Step by step we improve things, and we discover new issues or > possibilities. > > So denying one particular improvement is not good because it doesnt > solve the 'Bufferbloat in the known Universe' is not very helpful. I didn't say that. I LOVE that you and lots of people are fiddling with various ideas around the core codel concepts, and clearly said I think it's neat... My larger question, poorly put, was: what would applying ideas to codel based on measured tcp srrt, do in the larger known universe as (for example) outlined by the data in th= at paper, along with different tcps of any flavor at any rtt? your original thought was to limit it to the local lan somehow. --=20 Dave T=E4ht http://www.bufferbloat.net/projects/cerowrt/wiki - "3.3.8-17 is out with fq_codel!"