From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ie0-x22f.google.com (mail-ie0-x22f.google.com [IPv6:2607:f8b0:4001:c03::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 2CBCE21F1BB for ; Mon, 24 Feb 2014 08:38:32 -0800 (PST) Received: by mail-ie0-f175.google.com with SMTP id at1so3647944iec.20 for ; Mon, 24 Feb 2014 08:38:31 -0800 (PST) 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=qG0QX28GT/HKWohu0nNpgYhkLfz7dDw5/HsUIFTc7Vc=; b=kdGYLrbUfdMNwjMTiI1NapGP5cAttPsKTi8Qo0LwGGUbzH76cH2R/xvq0gqv2Xb2oV cFRSn/dYu37wW3blzWSYZBaEH0vQhOjnPwJ0pYx1XLOlGQC5LcAUmTVVP0oizKwlZgfj FogSnAcz1l7F8YX+Cd2L3zPk1m/G8HbT4aJYwKMwscaqb6zSo/1g7NOAkklVYZGQ+GFa H2ExvhjSr48st/ioDjZu8eeALYk39RzSV72aHWPdl0v02u1ClYBdn8Co+X6UwZYy/bDB aD6gXVg31PlnV/bfJFwRQXWHdZuGe4e+iiR6WmTjF1fiLz5beyZT2RxW9+p9z/uB2Dq+ HZCg== MIME-Version: 1.0 X-Received: by 10.50.67.82 with SMTP id l18mr14417112igt.29.1393259911210; Mon, 24 Feb 2014 08:38:31 -0800 (PST) Received: by 10.64.238.70 with HTTP; Mon, 24 Feb 2014 08:38:31 -0800 (PST) In-Reply-To: References: <4E5BC321-2054-4364-BECC-DF34E0D20380@gmail.com> Date: Mon, 24 Feb 2014 17:38:31 +0100 Message-ID: From: Aaron Wood To: Dave Taht Content-Type: multipart/alternative; boundary=047d7bd76f08166d2704f3299aad Cc: cerowrt-devel Subject: Re: [Cerowrt-devel] Equivocal results with using 3.10.28-14 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, 24 Feb 2014 16:38:32 -0000 --047d7bd76f08166d2704f3299aad Content-Type: text/plain; charset=ISO-8859-1 Rich, One thing that helped considerably on my my DSL link (21000/1200), was turning on the Link Layer Adaptation. With that, and efq_codel, I've been very happy with the (nearly non-existent) latency. Yeah, I lost a couple percent off the top, but the behavior is better. Although I was starting from a much better base given that Free.fr's DSL modems already using either fq_codel or RED (I'm not sure the specifics, but I think Dave Taht's gotten them from Free.fr in the past). Dave, the 40ms target is the buffer latency target? or how often the drop rates are recomputed? -Aaron --047d7bd76f08166d2704f3299aad Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
Rich,

One thing that helped considerabl= y on my my DSL link (21000/1200), was turning on the Link Layer Adaptation.= =A0With that, and efq_codel, I've been very happy with the (nearly non= -existent) latency. =A0Yeah, I lost a couple percent off the top, but the b= ehavior is better. =A0Although I was starting from a much better base given= that Free.fr's DSL modems already using either fq_codel or RED (I'= m not sure the specifics, but I think Dave Taht's gotten them from Free= .fr in the past).

Dave, the 40ms target is the buffer latency target? =A0= or how often the drop rates are recomputed?

-Aaron=

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