From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qk1-x742.google.com (mail-qk1-x742.google.com [IPv6:2607:f8b0:4864:20::742]) (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 E98F33CB35; Wed, 5 Dec 2018 22:19:02 -0500 (EST) Received: by mail-qk1-x742.google.com with SMTP id 189so13232704qkj.8; Wed, 05 Dec 2018 19:19:02 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to :content-transfer-encoding; bh=jjx2MgdS3izwNMpht+76VUfPmdoK4zrWV+z0LTEuPPE=; b=sXkbquKkF7Dgen15hOb8pZCRSkSqRQ2xuhTlz7gnv9Yqv6yrBDwsDwZ7kXmMuSzgw0 JBmwsNUgJ1E+AIgE/DotH5pFVpEe6pd9ICm7zfzy+a8KsvLk5OOqMcPGr3y162cdOfdT FwBvkTWCMx/42/PhcqeVdyDWvAcQaykW3LMHrQLIyz8LNHXyGmmHlT5miQi1h4leAYvC xm2zD41iSRr8r4pfnAz2ou23YNArNRIiR320oQYMZ6+mKZPQeeiYEb+Vcb5CHbDbInG1 LElwT54qPpPXPcSQcC8CatLx8/IbtUi0Ovzl25sVmjY48xTTgTm/0y9QzDtJcvCFZrz/ 0tlQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to :content-transfer-encoding; bh=jjx2MgdS3izwNMpht+76VUfPmdoK4zrWV+z0LTEuPPE=; b=e/qrvhC0BX39VMVcBEwwzagcCF+I0DVUdlXbFS/dQAVOGpccDSjpv97W6ZpfoDNhpe QyxCD7PLITQNPozv1JmGjTjrdg2NzTufHAgT82EkmBu6u9wdzRQI+HEAZYw4dy452RIO UmubyjoLR0+EluaIN+R1NLYoCdq2Gv1aHy+QljwDIINlr/nIUo/hwVyWThh6xo3px9JC qrcWqOgzNxmWOJ2PrOgpNxHC+Lhz6iL097/rJpD9R3KVSRZArdc5MkOgNM6yiH24N28n hCd6rfm1LKg5eGxMppuCoap45HtWgiSn3obIYkrkIDjkUXD6L7suca48843Zajikm/rD wX8Q== X-Gm-Message-State: AA+aEWaY1rUENcxu5DgnGUUOV0BmCmwfW5Wz95HzeeufVPrRBEbQN8GY gnJ7rlR25Dt7L0lhZfK1d2S2otmtkFFtT4tZ8sr2m26t X-Google-Smtp-Source: AFSGD/W3ZgJ2os3cElCKxxZjbP1q+jic9+zXNXIiJCg4+CHEiOa1HCyQoL3b4vuvdbLJBJgtOh0hFLYROodTQwYum9E= X-Received: by 2002:a37:4f8a:: with SMTP id d132mr24200263qkb.17.1544066341728; Wed, 05 Dec 2018 19:19:01 -0800 (PST) MIME-Version: 1.0 From: Dave Taht Date: Wed, 5 Dec 2018 19:18:49 -0800 Message-ID: To: bloat , Cake List , aqm@ietf.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Subject: [Cake] paper: per flow fairness in a data center network 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: Thu, 06 Dec 2018 03:19:03 -0000 While I strongly agree with their premise: "Multi-tenant DCNs cannot rely on specialized protocols and mechanisms that assume single ownership and end-system compliance. It is necessary rather to implement general, well-understood mechanisms provided as a network service that require as few assumptions about DC workload as possible." ... And there's a solid set of links to current work, and a very interesting comparison to pfabric, their DCTCP emulation is too flawed to be convincing, and we really should get around to making the ns2 fq_codel emulation fully match reality. This is also a scenario where I'd like to see cake tried, to demonstrate the effectiveness (or not!) of 8 way set associative queuing, cobalt, per host/per flow fq, etc, vs some of the workloads they outline. https://perso.telecom-paristech.fr/drossi/paper/rossi18hpsr.pdf --=20 Dave T=C3=A4ht CTO, TekLibre, LLC http://www.teklibre.com Tel: 1-831-205-9740