From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from korolev.univ-paris7.fr (korolev.univ-paris7.fr [IPv6:2001:660:3301:8000::1:2]) (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 9C3DA21F788 for ; Tue, 28 Jul 2015 06:09:19 -0700 (PDT) Received: from mailhub.math.univ-paris-diderot.fr (mailhub.math.univ-paris-diderot.fr [81.194.30.253]) by korolev.univ-paris7.fr (8.14.4/8.14.4/relay1/56228) with ESMTP id t6SD9Hln027695 for ; Tue, 28 Jul 2015 15:09:17 +0200 Received: from mailhub.math.univ-paris-diderot.fr (localhost [127.0.0.1]) by mailhub.math.univ-paris-diderot.fr (Postfix) with ESMTP id 42A5461FA7 for ; Tue, 28 Jul 2015 15:09:17 +0200 (CEST) X-Virus-Scanned: amavisd-new at math.univ-paris-diderot.fr Received: from mailhub.math.univ-paris-diderot.fr ([127.0.0.1]) by mailhub.math.univ-paris-diderot.fr (mailhub.math.univ-paris-diderot.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id qDHGmXcu_RLj for ; Tue, 28 Jul 2015 15:09:16 +0200 (CEST) Received: from ijon.pps.univ-paris-diderot.fr (user-188-33-50-89.play-internet.pl [188.33.50.89]) (Authenticated sender: jch) by mailhub.math.univ-paris-diderot.fr (Postfix) with ESMTPSA id 6273061FA5 for ; Tue, 28 Jul 2015 15:09:15 +0200 (CEST) Date: Tue, 28 Jul 2015 15:09:14 +0200 Message-ID: <87a8ugqvid.wl-jch@pps.univ-paris-diderot.fr> From: Juliusz Chroboczek To: bloat User-Agent: Wanderlust/2.15.9 MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.7 (korolev.univ-paris7.fr [194.254.61.138]); Tue, 28 Jul 2015 15:09:17 +0200 (CEST) X-Miltered: at korolev with ID 55B77EFD.001 by Joe's j-chkmail (http : // j-chkmail dot ensmp dot fr)! X-j-chkmail-Enveloppe: 55B77EFD.001 from mailhub.math.univ-paris-diderot.fr/mailhub.math.univ-paris-diderot.fr/null/mailhub.math.univ-paris-diderot.fr/ X-j-chkmail-Score: MSGID : 55B77EFD.001 on korolev.univ-paris7.fr : j-chkmail score : . : R=. U=. O=. B=0.000 -> S=0.000 X-j-chkmail-Status: Ham Subject: [Bloat] AQM and PPP on Linux 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: Tue, 28 Jul 2015 13:09:49 -0000 I'm currently away from home, and using a 3G modem for Internet access. I've found out that both NetworkManager and wvdial/pppd setup the interface to use pfifo_fast (with a qlen of a mere 3 packets!). Setting fq_codel manually appears to work fine, but needs to be redone every time the modem has a hiccup. Is that the expected behaviour? Shouldn't we be pushing patches somewhere to change the default? -- Juliusz