From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wi0-f181.google.com (mail-wi0-f181.google.com [209.85.212.181]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client did not present a certificate) by huchra.bufferbloat.net (Postfix) with ESMTPS id 6B10920051B for ; Sun, 2 Sep 2012 16:23:41 -0700 (PDT) Received: by wibhm2 with SMTP id hm2so2395830wib.10 for ; Sun, 02 Sep 2012 16:23:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=subject:from:to:cc:in-reply-to:references:content-type:date :message-id:mime-version:x-mailer:content-transfer-encoding; bh=1WOJ3Qzd1DZoKGBuFoVZdf2zxlAko2Z9y7ORIXX4Hxg=; b=n7jHxuaexU8waAyp+tvRU+Rn40uhIeI3RBDcisLUnuO1t2z9ukqLV7okGfOrBReynC Z7vNyXS5BX1bmHe/k2M9/ztW7BYKYj/UB2zvJlUxgS9CNEDUhq6dcbyhKCcwWV9DRONe jOJa3DEEjAJ55gwHjNLIgdNuWtX9+WJSzEyDtH94seRvxeWNt/fjkG54s9LuuXSy0HGh SHP7iVDzjW+kAW2PDzDma5/CbD/NI2iat0f0bfY/ec8sp0boKZj4x9paKR1CPMYOXFiu XcHefjVoYkBPfcU/SM1TnMzO63KrfO/VKDFJlaxBwX7KrqT53oUO7N4/1Nv/UrAXVgW8 aWoQ== Received: by 10.216.133.200 with SMTP id q50mr7779624wei.166.1346628219457; Sun, 02 Sep 2012 16:23:39 -0700 (PDT) Received: from [192.168.1.37] (149.237.66.86.rev.sfr.net. [86.66.237.149]) by mx.google.com with ESMTPS id k20sm15988329wiv.11.2012.09.02.16.23.37 (version=SSLv3 cipher=OTHER); Sun, 02 Sep 2012 16:23:38 -0700 (PDT) From: Eric Dumazet To: Dave Taht In-Reply-To: References: <1346396137.2586.301.camel@edumazet-glaptop> <5040DDE9.7030507@hp.com> <1346430207.7996.11.camel@edumazet-glaptop> <1346504012.7996.68.camel@edumazet-glaptop> Content-Type: text/plain; charset="UTF-8" Date: Mon, 03 Sep 2012 01:23:36 +0200 Message-ID: <1346628216.2563.70.camel@edumazet-glaptop> Mime-Version: 1.0 X-Mailer: Evolution 2.28.3 Content-Transfer-Encoding: 7bit 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: Sun, 02 Sep 2012 23:23:41 -0000 On Sun, 2012-09-02 at 11:08 -0700, Dave Taht wrote: > On Sat, Sep 1, 2012 at 5:53 AM, Eric Dumazet wrote: > > 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 it, > > 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 paper: > > 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. 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.