From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-oi0-x22b.google.com (mail-oi0-x22b.google.com [IPv6:2607:f8b0:4003:c06::22b]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id 42FC521F610 for ; Fri, 5 Jun 2015 10:23:05 -0700 (PDT) Received: by oiww2 with SMTP id w2so58129499oiw.0 for ; Fri, 05 Jun 2015 10:23:05 -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=Q7y+Bpgk05SZoa234d85VWxRuQ6S7mPnHh3BSXLlcyg=; b=GH9G/qO92lYB12vNEwHdR3hLM3sQEoFyjzIYGbb03Kr/p2e29yaePxqdqFJPY2Kl8h 5P9ZQU8tKgHz3UHcaGVR5FMH/sZYdqvTcqpi+VhyKDZMAE8VVkjYzmXsqolTcXcxNOYA /uW2ONRsncxmte/oBvxuLg78ZKZfQ1OzQuxsX9SzHLO7b4nzFgUcilColb8zyYZqVH1y xI1ss0VQ2sTTLZHdFRsZeKK+Bm+lNzDVuuWJb9KVEqCi5SAkjHcpx9DzprwQ8Ye0Pzvr O1I7FUfl+ur954GPVqK7A01cHqCJKWzUfuDUupV8/c8qdG+/A+1fOmYA1QtaM/sV7tx9 O3Jg== MIME-Version: 1.0 X-Received: by 10.202.216.138 with SMTP id p132mr3639975oig.133.1433524985135; Fri, 05 Jun 2015 10:23:05 -0700 (PDT) Received: by 10.202.105.129 with HTTP; Fri, 5 Jun 2015 10:23:05 -0700 (PDT) In-Reply-To: <5571DA4E.5060809@darbyshire-bryant.me.uk> References: <7D4DDC3F-9233-4E07-B59B-AA1368CA9D4E@gmail.com> <5571B334.7050607@darbyshire-bryant.me.uk> <5571DA4E.5060809@darbyshire-bryant.me.uk> Date: Fri, 5 Jun 2015 10:23:05 -0700 Message-ID: From: Dave Taht To: Kevin Darbyshire-Bryant Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Cc: bloat Subject: Re: [Bloat] Bloat goes away, but with ~25% speed loss? X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 05 Jun 2015 17:23:34 -0000 On Fri, Jun 5, 2015 at 10:20 AM, Kevin Darbyshire-Bryant wrote: > On 05/06/2015 17:19, Dave Taht wrote: >> On Fri, Jun 5, 2015 at 7:33 AM, Kevin Darbyshire-Bryant >> wrote: >>> >>> On 04/06/15 21:01, Jonathan Morton wrote: >>> >>> A useful exercise might be to log the idle latency over a long period o= f >>> time, and correlate it to peak load periods, as A&A do. >>> http://aa.net.uk/kb-broadband-cqm.html . >>> >>> Minor claim to 'infamy'. The line graph shown on that page is my ADSL = line >>> from 4ish years ago :-) I was having a hell of a time trying to convin= ce BT >>> to solve the packet loss issue caused by a faulty PSU in a satellite >>> receiver (one whole street away and affecting a LOT of people) Andrews= & >>> Arnold (ISP) were the only people capable of hitting BT with a sufficie= ntly >>> large cluebat. >> A&A struck me as an extremely clueful ISP (I think they have had ipv6 >> /48s for forever?) >> and it has been my impression that folk like that were using things >> like HFSC + SFQ already >> in their "rate limiters", and had experimented also with fq_codel by now= . > > Adrian Kennard the owner writes code for their ISP grade routers etc (Fir= ebricks). Very clever chap. And yes very early adopters and promoters of = IPv6. No idea what qdiscs etc they've experimented with. I'll try to ask.= Would be interesting to get fq_codel or even cake into the ISP side of th= ings! Yes, I met him at one of the uknofs. Very clever chap. So far as I knew the firebrick (which has a GREAT reputation, btw), was bsd based. --=20 Dave T=C3=A4ht What will it take to vastly improve wifi for everyone? https://plus.google.com/u/0/explore/makewififast