From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-oi0-x22c.google.com (mail-oi0-x22c.google.com [IPv6:2607:f8b0:4003:c06::22c]) (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 310E921F3C6 for ; Mon, 28 Jul 2014 11:59:52 -0700 (PDT) Received: by mail-oi0-f44.google.com with SMTP id x69so6430317oia.17 for ; Mon, 28 Jul 2014 11:59:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type :content-transfer-encoding; bh=n+ul+RoPl0dV99vFnT1m3uBvuopRreWNQhGH9agf3Nc=; b=kYVQ/NVxgecEQm/NpM3ncZ4nDuIrDwobnbJK9X6h6TYUINzVu1ekffilmKKnazxttl 35GfpYa36l/hK/YDAIbLc+1FfzhrUE6RUp4W72rVXzJzLlAQDyAwbG13aG4DSacWVlOk YkqXV6Yj5r2icGgCJ2KthkiRM4/aZRIVI64a01RCb8J7z6xnd3ZsynxWSUg7zLbtZMqY L0lJBJw1LnhMhCsOIxouzSw9vO4UG/KYQiGtRGKsFfFRKG6ujCjKoKDwLKE7Dmb228I3 BxgPS7Dp86dREHAoYf4/66j5RQyDEnIiy+U3NMJE0FYQs7SN9SIQJVSYutQxTyid2e1r ytBQ== MIME-Version: 1.0 X-Received: by 10.182.200.169 with SMTP id jt9mr53521029obc.0.1406573990598; Mon, 28 Jul 2014 11:59:50 -0700 (PDT) Received: by 10.202.93.69 with HTTP; Mon, 28 Jul 2014 11:59:50 -0700 (PDT) Date: Mon, 28 Jul 2014 14:59:50 -0400 Message-ID: From: Dave Taht To: "cerowrt-devel@lists.bufferbloat.net" Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Subject: [Cerowrt-devel] DSL devices? X-BeenThere: cerowrt-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: Development issues regarding the cerowrt test router project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 28 Jul 2014 18:59:52 -0000 There are a LOT of dsl capable devices in openwrt barrier breaker. I am curious if anyone has tried one of late? I just got back from "farmstock", and as effective as software rate limiting can be, I imagine that when someone is stuck at a line rate of 1Mbit down and 384k up that doing it in hardware is superior... This was a classic bufferbloated plot on the existing 384k uplink there: http://snapon.lab.bufferbloat.net/~d/farmstock/farmstock_upload_showing_170= 0ms_latency.png Downloads were not so bad, "only" 1sec of buffering... http://snapon.lab.bufferbloat.net/~d/farmstock/farmstock-short-download.png there appears to be some level of ack prioritization or fair queuing in play here, an internet radio flow would survive the onslought of netperf-wrapper for 10s of minutes... and generally full download rate was achieved at a huge cost in the upload. http://snapon.lab.bufferbloat.net/~d/farmstock/farmstock-bidirectional.png you can imagine under the influence of two dozen millenials with 1 or more phones/tablets each, the network performed rather badly during the show. Anyway, so I figure that there are a selection of DSL capable openwrt platforms now someone can fiddle with.... PS wow was there a lot of traffic on the list while I was away. I am way be= hind. --=20 Dave T=C3=A4ht NSFW: https://w2.eff.org/Censorship/Internet_censorship_bills/russell_0296_= indecent.article