From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from nm10-vm0.bullet.mail.ne1.yahoo.com (nm10-vm0.bullet.mail.ne1.yahoo.com [98.138.91.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id B93A23B25E for ; Sun, 30 Oct 2016 12:43:13 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1477845793; bh=eNCOJ9UjHcN2y+z5DH6sSKCRiPSONkS9zDpVoUJqnjE=; h=Subject:From:To:Date:In-Reply-To:References:From:Subject; b=uSiObGtCp1stLe1NTpEoPsPEIqu4y8wEsXyXCiu3/4Mc2XNV+IqsJaiSjHr8S9mjG4n+FHYQFTgqmdiiXhSlEkiBn+dPsSkxZWYPlgODe+GFr1e3b+NhuV9BBUlVT/1NDPIc4go5SgLSzXL/cWoCUFP+K1e/6bss2ZoWpVdwJpK/b8ruk2+d6bEY1gM198XO3WusGkIs5TTjF+VYORJfFm2KMX96jnM3MdPfR3bCtWmT0IfO9gt8T7NyyaJBLodvqi0KijrcTzWnhFXy2PooUyxff3aY0mwyf3O8/wUnc7FS2Xs5+W0uwWSjMo0DDl3EiaB7hMPlFxjaTaAQVyEP3Q== Received: from [98.138.101.132] by nm10.bullet.mail.ne1.yahoo.com with NNFMP; 30 Oct 2016 16:43:13 -0000 Received: from [98.138.84.47] by tm20.bullet.mail.ne1.yahoo.com with NNFMP; 30 Oct 2016 16:43:13 -0000 Received: from [127.0.0.1] by smtp115.mail.ne1.yahoo.com with NNFMP; 30 Oct 2016 16:43:13 -0000 X-Yahoo-Newman-Id: 288851.59065.bm@smtp115.mail.ne1.yahoo.com X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: BMQW7O0VM1mYQ54zDxAu9wa0uAHfE7JvGXZG6fl05jccxSd v4xJMlNEqh4t8eRsu6rpbtgR9V31983VWK5Z1mPQpugCA9xzTzW4RQ2bb3Ht blgKdS75Dq2nm0F0uFaEQH2PIibHHEBcyVi1wOaAIukeiOd2vKn9cmAbR6rD NGLpufZTfAd6V4nckXdWlWsz4kFhuaxHlPTh0Q._FBfQnKvWGHqBrBzQjROH 6mQuElzXwsR4bcsWtnhV6Re6pt87JYdM9wwGAnyMJlhoZaXWvEhzm881l5tt IpiG9CFliHMr_amCz3mXMGDNJ9IeW2IQMPIzud2ffdaGBgjUotBKuscP7DR2 QMasPhAbD2Ay3b3vgKnNN9GaJOe3pjIlrGrsAGq3UPVAb8D6Xq0JcJWaqAxv _6M0aVPdPZsm7ZGWYLv30606dRfBpW98X17r4ki49a_rJWsQkeVaOYwkWz4L 7Qh4TgUDmSYoAARJHk.tTo4wtHJXFyscRjpfaHvtdm0soVm3kGhttN90xO0O lluwseXeKRNVj9coTK2V0Mqy6FKuUAO2Wp02Cz9yAZfFvtj6rHc0os0aY8mN 08q9EFEJosQ-- X-Yahoo-SMTP: 6sUo5IiswBDB2TZm6JKJ6DaI.Rsz4O0- Message-ID: <1477845791.1404.2.camel@yahoo.com> From: Georgios Amanakis To: cake@lists.bufferbloat.net Date: Sun, 30 Oct 2016 12:43:11 -0400 In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.22.2 Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Subject: Re: [Cake] WAN ingress rate with concurrent downloads X-BeenThere: cake@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: Cake - FQ_codel the next generation List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 30 Oct 2016 16:43:13 -0000 Dear All, I think Sebastian's theory has a weak point.=C2=A0 >=C2=A0Again I believe you just show bit-torrent misbehaving ... I can easily reproduce this behaviour if one LAN-host downloads multiple files using TCP (e.g. 2 or more kernels simultaneously from ht tp://www.kernel.org).=20 > For me this looks like bwmon accounts the incoming packets before > cake sees and drops them ... If only one download takes place then the bandwidth bmon reports on WAN-ingress is the same as the limit set in cake.=C2=A0I don't think that bmon accounts the incoming packets before cake sees them. Furthermore, Wireshark reports that all bittorrent traffic in my case are TCP packets, and reports the same bandwidth usage as bmon on WAN-ingress.=C2=A0 The only way I have found that WAN-ingress limit is obeyed, is using act_police with the in-kernel bandwidth estimator (i.e. tc filter add dev enp0s13 parent ffff: protocol all estimator 10msec 80msec u32 match u32 0 0 police avrate 3300kbit drop flowid :1). But then there is an discrepancy between WAN-ingress and LAN-egress (i.e. WAN-ingress is at ~400kbytes/s and LAN-egress on the host running bittorrent is ~220kbytes/s). Unfortunately I cannot see the bandwidth my cable-modem syncs at (I searched the web-interface but did not find it; it is a Comcast-provided Arris TG1682G). Noah, could you try and see what happens if instead of bittorrent a LAN-host downloads multiple files using TCP? Thank you all for your feedback, George