From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from server.klug.on.ca (server.klug.on.ca [205.189.48.131]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by huchra.bufferbloat.net (Postfix) with ESMTPS id 2F83421F21F for ; Tue, 24 Jun 2014 06:23:01 -0700 (PDT) Received: from linux.interlinx.bc.ca (69-165-217-196.dsl.teksavvy.com [69.165.217.196]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by server.klug.on.ca (Postfix) with ESMTP id CF0EB19D1F for ; Tue, 24 Jun 2014 09:23:20 -0400 (EDT) Received: from [10.75.22.1] (pc.ilinx [10.75.22.1]) by linux.interlinx.bc.ca (Postfix) with ESMTP id C05668C49 for ; Tue, 24 Jun 2014 09:22:55 -0400 (EDT) Message-ID: <1403616175.3478.731.camel@pc.interlinx.bc.ca> From: "Brian J. Murrell" To: codel@lists.bufferbloat.net Date: Tue, 24 Jun 2014 09:22:55 -0400 Content-Type: multipart/signed; micalg="pgp-sha1"; protocol="application/pgp-signature"; boundary="=-MhR8R848c/Km+q1ml7fN" X-Mailer: Evolution 3.10.4 (3.10.4-2.fc20) Mime-Version: 1.0 Subject: [Codel] what am i doing wrong? why isn't codel working? X-BeenThere: codel@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: CoDel AQM discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 24 Jun 2014 13:23:01 -0000 --=-MhR8R848c/Km+q1ml7fN Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hi all, I've upgraded my router to OpenWRT Breaker Barrier r41163 which has kernel 3.10.36 in it. I was pleased to see that codel appears (to my very newbie eyes) to be default on what should be the "fast->slow" (where bufferbloat happens) interfaces: qdisc fq_codel 0: dev eth0 root refcnt 2 limit 1024p flows 1024 quantum 300= target 5.0ms interval 100.0ms ecn=20 qdisc mq 0: dev wlan1 root=20 qdisc mq 0: dev wlan0 root=20 qdisc fq_codel 0: dev pppoe-wan1 root refcnt 2 limit 1024p flows 1024 quant= um 300 target 5.0ms interval 100.0ms ecn=20 qdisc fq_codel 0: dev tun0 root refcnt 2 limit 1024p flows 1024 quantum 300= target 5.0ms interval 100.0ms ecn=20 So first thing to notice is that this router has two WAN interfaces but only one of them (pppoe-wan1) has had codel applied. The other WAN interface (eth0.2) is not even listed. So off I go to experiment with the WAN interface that does have codel applied... So I do the saturate-and-ping test through pppoe-wan1 and ping times go from ~12ms to ~1200ms, while saturating the upstream so clearly codel is not working there. What am I doing wrong? Cheers, b. --=-MhR8R848c/Km+q1ml7fN Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQEcBAABAgAGBQJTqXuvAAoJENrB0DQWy8ighgwH/RH+aQX8jxgTyK7+J7/Dso8V WUVGIVM3TCPneD5kxc+UDInMsdW2bWMD8i3fzf3/l9RHytX70kZWmVGX/7DjyNlV LrkDsc7BYqmQmIxAKnlYudgynzavvGV265YDgYHWnAw5T9G3rFsw/N6YdCWvHvb4 KYV92JrdMG24Z5IRwXvC2oleoUi00enr+3a06K6zR1tlCqJIqembQ33oAVOok1nl Bg2dJNKA1IP+3i1yPRXEH0SeNO/uog4eZCqkLutZSqgULAwPNrMdNfHpSHE11wzk Q+gjYt+AzZRs/1NvQbbC7ljM/zXlwR/uY7bFtkRYKO69NfQ0GKo9nzj/Ylg3xvA= =4YB4 -----END PGP SIGNATURE----- --=-MhR8R848c/Km+q1ml7fN--