From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-vn0-x22f.google.com (mail-vn0-x22f.google.com [IPv6:2607:f8b0:400c:c0f::22f]) (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 4854121F604 for ; Fri, 5 Jun 2015 09:59:37 -0700 (PDT) Received: by vnbf7 with SMTP id f7so9810257vnb.13 for ; Fri, 05 Jun 2015 09:59:36 -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; bh=S0WjTdSb0qtyYdbb/V5FWmJWm9sAHNAtimYDeuibIRQ=; b=d3sG00ShxjsYLZA5944kDvBjr7Yp87ujtBb6WrMtXV09CwBtQsz4CojTJoAOIRfldF 3F7tLrHaeGKClBTiRUpsH8QtXmPeJu4P/IAqqyrc92yj01HrRkFih6jJsPVFCTG5ICUV ODBvbMGcrfbydq9OrWX8fGEZCvvxhlRJu9d5NIsF5usqttSWYgGqbcMWMvOhCD4/cvh6 /UYGG4NciadEDECvULYUzmR+iuiLoisTqk2HWgRMl757PXj8oyLobiCm+Cll2L5WtX7W XtRmY8bDjUdEPY37ttW6r4AMlfBUee6rt3PAq/lvZhotPnAOzuAjd+y+obi++ROthLNn 7l+g== MIME-Version: 1.0 X-Received: by 10.52.30.201 with SMTP id u9mr7659559vdh.95.1433523576844; Fri, 05 Jun 2015 09:59:36 -0700 (PDT) Received: by 10.52.12.167 with HTTP; Fri, 5 Jun 2015 09:59:36 -0700 (PDT) Received: by 10.52.12.167 with HTTP; Fri, 5 Jun 2015 09:59:36 -0700 (PDT) In-Reply-To: References: <5571B636.8050908@darbyshire-bryant.me.uk> Date: Fri, 5 Jun 2015 19:59:36 +0300 Message-ID: From: Jonathan Morton To: Dave Taht Content-Type: multipart/alternative; boundary=bcaec51ba3ab93363a0517c83748 Cc: bloat Subject: Re: [Bloat] Remarkably simple bloat managing use by a UK ISP 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 17:00:06 -0000 --bcaec51ba3ab93363a0517c83748 Content-Type: text/plain; charset=UTF-8 > I do not regard ping promotion as a "feature". Neither do I, but in this case at least ping isn't getting an unfair advantage over other latency sensitive traffic. Measurements based on ping therefore correctly show a big improvement over doing nothing. Fq_codel also naturally promotes pings and acks in the same basic way, and I'm similarly happy with that, because it's a natural result of a genuine improvement. The way it works also means that it's not a strict priority, so it goes away as soon as someone tries to game it. - Jonathan Morton --bcaec51ba3ab93363a0517c83748 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable

> I do not regard ping promotion as a "feature"= .

Neither do I, but in this case at least ping isn't getti= ng an unfair advantage over other latency sensitive traffic. Measurements b= ased on ping therefore correctly show a big improvement over doing nothing.=

Fq_codel also naturally promotes pings and acks in the same = basic way, and I'm similarly happy with that, because it's a natura= l result of a genuine improvement. The way it works also means that it'= s not a strict priority, so it goes away as soon as someone tries to game i= t.

- Jonathan Morton

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