From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f46.google.com (mail-pa0-f46.google.com [209.85.220.46]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id B6DA321F1CE for ; Fri, 18 Jan 2013 08:10:54 -0800 (PST) Received: by mail-pa0-f46.google.com with SMTP id kp14so812164pab.19 for ; Fri, 18 Jan 2013 08:10:54 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=x-received:date:from:to:subject:message-id:in-reply-to:references :x-mailer:mime-version:content-type:x-gm-message-state; bh=u1rSD2f7jkBD7IdGelMkrhTUb3pHySzDSiR0TxFdZbY=; b=NkliQL0mktfl46/X2RABkuM/xKtYHYww5CXGUSAHIYzNh2XgKxJ0za8iS92cEOY9dD gtWZMxGc+Yo8O+XkkfzyLCzsg7Hei9IkS0XUY1+J+pyprtdYvR2xMcXUgKrwKDDOLtPA KRdd8DiZcEsVnkE8aXUBzj4QpwMwNyeLPNlG6nnuGq6lk8LRgJPLFF1KyiP5xNmKuP/Q DQVJHRy939Qr6uxGl/J/HKA1WyT0rwb24jqhOCt716nRWR/3doMwWCptAwlwz3KHijXj tzyIohGm66VpsOrHzo1or6CQY/w7bV2kY5ezJnm4M6Nai5uK1afrXBVfP36lZ/pXNhf1 VrJg== X-Received: by 10.66.81.231 with SMTP id d7mr24980670pay.27.1358525453892; Fri, 18 Jan 2013 08:10:53 -0800 (PST) Received: from nehalam.linuxnetplumber.net (static-50-53-80-93.bvtn.or.frontiernet.net. [50.53.80.93]) by mx.google.com with ESMTPS id bi2sm3675928pab.18.2013.01.18.08.10.52 (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Fri, 18 Jan 2013 08:10:53 -0800 (PST) Date: Fri, 18 Jan 2013 08:09:24 -0800 From: Stephen Hemminger To: codel@lists.bufferbloat.net Message-ID: <20130118080924.00fc1be0@nehalam.linuxnetplumber.net> In-Reply-To: <87bocnfjy9.fsf@toke.dk> References: <87bocnfjy9.fsf@toke.dk> X-Mailer: Claws Mail 3.8.1 (GTK+ 2.24.10; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: multipart/signed; micalg=PGP-SHA256; boundary="Sig_/VFJMly..3JME772DX.E3ROP"; protocol="application/pgp-signature" X-Gm-Message-State: ALoCoQldCRuWYGTQxWog/Wp73GlTSoU5mmo+7Faqk6AgBt4Npn3hKv8PTIZ+3PG0yNyZuJ66pc2v Subject: Re: [Codel] Comparing Linux qdiscs in lab conditions (paper) 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: Fri, 18 Jan 2013 16:10:54 -0000 --Sig_/VFJMly..3JME772DX.E3ROP Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable On Fri, 18 Jan 2013 00:50:22 +0100 Toke H=F8iland-J=F8rgensen wrote: > Hello >=20 > I've recently written and defended this university project report on > bufferbloat as part of my masters programme: >=20 > http://rudar.ruc.dk/handle/1800/9322 (or > http://akira.ruc.dk/~tohojo/bufferbloat/bufferbloat-final.pdf if the > first link doesn't work). >=20 > The paper compares four different Linux qdiscs in a simple lab setup, > and demonstrates bufferbloat, and the mitigation provided by fq_codel, > quite well. The first couple of sections on how TCP and the Linux > network stack work are probably known material to most people here, so > feel free to skip to the experimental setup and results in sections 5 > and 6. >=20 > I hope you will find this interesting; feel free to comment and/or ask > questions. :) >=20 > -Toke >=20 I am doing a demo at LCA in two weeks. Your graphs are the clearest examples of different qdisc, and mesh nicely with my fluid demos. If it is okay, could you send me the originals for the Figure 5 graphs, I will use them wi= th attribution during the summary. --Sig_/VFJMly..3JME772DX.E3ROP Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIcBAEBCAAGBQJQ+XO0AAoJEICnf2CVzeR+ZNAP/jT30MyFDB+D2i/uVKWchNM1 J02SYgXh7itoAmACC+InWMQkvDh8kooDSKEUc+jupQgUIRtE48wXfDYXq8J7yFVA Ru5vIwB088cP9aV7AcOPr9kZsMSECF3AtG3fig3mP/mm6yLHJg6+nRE8AMGtXrJL Z9u0MD5p8vCERxBtN8zj3gpRh+JHQeIWYuHy5JhZav2ZRWYoZc5xbDoMqsIL+euS L/WWvoTS3V4LTt3XDUSjAutZIvza2HjD8qrVUkNeZq620ZyvTGKFC8Xij1B0ugmR U2CaMTl4GXsfuSPo+wrMsvQlLU0PDdq7Hgwdj3TUJql7X+e+uG80KsNa/K7mXzWd YVneYGzQPbT4PfNYidhbtxdZoc0kjoC6KQLQbyygrlGU6otNiWSdpXVPnrxTcJJk z3mOi5cp4sHR2uW43y0t8OmizFYgvpjxx4HFx1pCZzZ2GNxJ4um6m565GM3INjUY +3p+1bkkcYjCTGX2jF8DyUA54K0U7+xOA1FtmHKaICQdvuqQY/6tGTXeTcOKvDEL 0ZqU9DS7oN3/PW/dVOJV3/T8ch0OjmvdY8cK57T7Lslzf+iQmnCQa1tm4mivNSOe grU9ta6TkLG95pj24453T8y2R3i7ctOclaoXfVkfL5b1w2RJIhY2VMfXmIu3dzpd lanFYm+8/yY3jnhf3C3q =kPT7 -----END PGP SIGNATURE----- --Sig_/VFJMly..3JME772DX.E3ROP--