From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-iw0-f171.google.com (mail-iw0-f171.google.com [209.85.214.171]) (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 35A9E200034 for ; Wed, 22 Jun 2011 13:15:11 -0700 (PDT) Received: by iwn34 with SMTP id 34so1562697iwn.16 for ; Wed, 22 Jun 2011 13:42:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=tIbVNQSMq0Kdl29owfdrCLPlCqPFL92p7yDQK7sbg9s=; b=tO3CsSVE+pf6GJYtTCjCXn2KRGAFIdNXKwvUhaHiJGiU7+06bgD9SADugSqqdUHhG4 hB7C4f4kwjddJT+yNy3R+78XjEU/s4Nc6J621QDN93xXav5AIP1VR4beLREeNjPuXQMl 4CKEJjN5GVqTqDko7+cOFVxNTlEhQhVO/hZPw= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=H3De4dWHsYTxKfFR17+2WNvLYTt5aEXM0yYGnT+73rF/qf2lDEmF52xAmutz/05qFC OoeP7Bad4Fw0WkLqfXZQVDRhzBUm3qd4qHO8nHFw1N0TsNYNHpQUIFr2TR9z5/MynNK0 VNMLwqH+MCYtX9LZtlhh5N1y4bkCZg7D6GXTA= MIME-Version: 1.0 Received: by 10.231.74.84 with SMTP id t20mr972119ibj.38.1308775342918; Wed, 22 Jun 2011 13:42:22 -0700 (PDT) Received: by 10.231.13.76 with HTTP; Wed, 22 Jun 2011 13:42:22 -0700 (PDT) In-Reply-To: References: Date: Wed, 22 Jun 2011 14:42:22 -0600 Message-ID: Subject: Re: Mice [was Re: QoS for system critical packets on wireless] From: Dave Taht To: Justin McCann Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: bloat-devel X-BeenThere: bloat-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: "Developers working on AQM, device drivers, and networking stacks" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 22 Jun 2011 20:15:11 -0000 OK, so I've gone and updated the related wiki page to indicate more of what I'd actually meant. Still need a good analogy though... Secondly you've given me an idea towards actively tracking mice-y short flows using something like conntrack or simply getting stats on syns, synacks,fins, finacks which ought to be interesting in itself. One problem I'd already found in the openwrt defaults was that it does severe rate limiting of syns by default - 25!!!??? which I only found by trying to access the top 100 web sites all at the same time and being totally befuddled by the results. (this test is also in my Diffserv repo) Thirdly, although the iptables implementation of diffserv was straightforward and easy to describe, and the proposal for enhancing iptables to be performant equally clear and straightforward, it's beginning to appear that most of the functionality I proposed in the first draft of the diffserv rfc belongs in the 'tc' subsystem, not in iptables. I'm really glad I wrote it down and am grateful for the feedback both public and private thus far. --=20 Dave T=E4ht SKYPE: davetaht US Tel: 1-239-829-5608 http://the-edge.blogspot.com