From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-vn0-x22c.google.com (mail-vn0-x22c.google.com [IPv6:2607:f8b0:400c:c0f::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 9920C21F1ED for ; Wed, 3 Jun 2015 14:18:30 -0700 (PDT) Received: by vnbf1 with SMTP id f1so2875013vnb.6 for ; Wed, 03 Jun 2015 14:18:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:content-type:content-transfer-encoding:subject:message-id:date :to:mime-version; bh=x+jcR6sCRa/fzGl4BrrD/z0Ny5sr9IaLykepP8dNYWg=; b=hRsHbwbG5TtQmsxYML73fiKvUzD+hf7Z23NWmuEgZlFenpn08oKV8kRVjMagBEWJuy Lcdzn41SSgneH2ZmGYbzmOrowDCCv8QU5CHMKUnU1y4/VoatRiZfYETWqA43PLbTI09t 0tSn4Hq9HZzN0fd3dWXcRarKE8kNUFKWUt1wVae0NlDKJBe/J4+fVI9gBgkKTSEcqJ/c afgt9z0aFHnkSS3+iOLLCKjfBfF7iXXYlaSQQ+TjkdQYUXI74KFT/7pM0rDYpkWjB6GK oWZhYc5febMQqOBd9TQ+kJjI9bEgR55waGiKE8VDGVAb55zlIALsHFr0C0PBuO+K6rNZ CA4A== X-Received: by 10.52.228.42 with SMTP id sf10mr50175067vdc.12.1433366309140; Wed, 03 Jun 2015 14:18:29 -0700 (PDT) Received: from richs-mbp-12926.lan (pool-72-71-239-202.cncdnh.east.myfairpoint.net. [72.71.239.202]) by mx.google.com with ESMTPSA id de3sm2198836vdc.17.2015.06.03.14.18.28 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Wed, 03 Jun 2015 14:18:28 -0700 (PDT) From: Rich Brown Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Message-Id: <7D4DDC3F-9233-4E07-B59B-AA1368CA9D4E@gmail.com> Date: Wed, 3 Jun 2015 17:18:42 -0400 To: bloat Mime-Version: 1.0 (Mac OS X Mail 7.3 \(1878.6\)) X-Mailer: Apple Mail (2.1878.6) Subject: [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: Wed, 03 Jun 2015 21:18:58 -0000 I'm supporting people re: SQM/fq_codel on some of the boards, and came = across a refractory problem, and I'd like to get some advice. Summary: A person is using OpenWrt 14.07 (same code base as CeroWrt = 3.10.50-1) and SQM. Turning on SQM decreases, but doesn't eliminate, = bufferbloat. They also lose a significant fraction of their bandwidth = (from ~12-13 mbps down to ~9-10mpbs down, with similar decrease on the = upload side). Original report: = http://www.techsupportforum.com/forums/f31/bufferbloat-wont-go-away-997842= .html=20 - I have confirmed that it's set up right and that there doesn't seem to = be any other shaping in play.=20 - Also, the ISP has confirmed that the tower involved does get = overloaded, but I'm not sure how that would affect the SQM rates while = leaving unchanged the unshaped measurements... What other thoughts/advice could I offer? Thanks! Rich=