From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lf1-x12d.google.com (mail-lf1-x12d.google.com [IPv6:2a00:1450:4864:20::12d]) (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 9438F3B2A4 for ; Fri, 3 Dec 2021 19:09:03 -0500 (EST) Received: by mail-lf1-x12d.google.com with SMTP id b1so10148456lfs.13 for ; Fri, 03 Dec 2021 16:09:03 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=+XIdWIzNi9VNN4YlDKUdjy413A8Qw6+IAzXui6lbT78=; b=VTG7HogPcUaiUHciGAaYi/bQbwMBV8oNE0TnS1x4a4rwQdFmg01ID/G2H6rL89ZiCr DejAsCfdxLbKJkR/CMy7T50EMrviNLBlFYyaWrvGnQwLVEIcljmglpUiBwH/T5wvh/6l oSPnqNuQtwCg2dmxgGAK2qdXmG2wEsWjLmVoHrKKkR14xlwAQYtJE1xHw5PzOQSg6Vzd 5pikE90QudBTIF8MwpO/0IXyTK2C9hAgJnOP9cpnLYIHWj4ExnaLdulN/Ru47GTMn3BM JJ7HEu+KZu9+HTJBIeGFzyvnRKqmK18LLBHcAK9eMqoYaIjXR9l+pOj8h2/mLOb87OEl GHhA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=+XIdWIzNi9VNN4YlDKUdjy413A8Qw6+IAzXui6lbT78=; b=2VT8HTRdqK6/0IYanG7yfIbZuH6na5OTQdHV0Sjuls2uNJn2+4eHtyDATe2uI9uqqk G+6aLV/q/jlzFOLTdSAMeBv6u1qBJp6BGPQLibvOKiQS4MFRzfHwhXX2vRzPmzOpQIMV QfSwWwtvT6sngOktMHzwYdhogObxH8RBFEsrsmMz6zAiy/Hd7xq+zqiqBM9EsxS/RZAW nt9jAeZbF84qXNHxTdtQ/TFOL5R6wxJU9QmoYUAyFacy0bIMBKXzZOPfCY8EFQcFIs87 b+uT7Ng6Uw4A9N1a75cdRaS6m3zmbFvbrgNMahDVs7FNW9x2IUtrBRqNOe1hzrri44vg 6hag== X-Gm-Message-State: AOAM531XxVQtzL/IIQp6hRFKBhP7UAGINF7fEo5BSNczUEY7R+iFW71s xkchs62K1W1arbQ6fLMa75A= X-Google-Smtp-Source: ABdhPJxHDioPcaKF45JrzeXRC6DtnolLaX/hOUrenLS4+ict7HR17XgrIbDKUmIbMGKaFigce2NF5Q== X-Received: by 2002:a05:6512:aca:: with SMTP id n10mr21142127lfu.265.1638576542182; Fri, 03 Dec 2021 16:09:02 -0800 (PST) Received: from smtpclient.apple (188-67-32-84.bb.dnainternet.fi. [188.67.32.84]) by smtp.gmail.com with ESMTPSA id k13sm542505lfg.306.2021.12.03.16.09.00 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Fri, 03 Dec 2021 16:09:01 -0800 (PST) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 14.0 \(3654.100.0.2.22\)) From: Jonathan Morton In-Reply-To: Date: Sat, 4 Dec 2021 02:09:00 +0200 Cc: jonathan.kua@deakin.edu.au, Cake List Content-Transfer-Encoding: quoted-printable Message-Id: <0A6AB0B7-E010-42E3-BAEE-FCBFA5995117@gmail.com> References: To: Dave Taht X-Mailer: Apple Mail (2.3654.100.0.2.22) Subject: Re: [Cake] Understanding the Achieved Rate Multiplication Effect in FlowQueue-based AQM Bottleneck 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: Sat, 04 Dec 2021 00:09:03 -0000 > On 4 Dec, 2021, at 12:27 am, Dave Taht wrote: >=20 > = https://jonathankua.github.io/preprints/jkua-ieeelcn2021_understanding_ar_= preprint-20jul2021.pdf >=20 > I would love it if somehow the measured effects of chunklets against = cake's per-host/per flow fq was examined one day. I haven't actually measured it, but based on what the above paper says, = I can make some firm predictions: 1: When competing against traffic to the same local host, the = performance effects they describe will be present. 2: When competing against traffic to a different local-network host, the = performance effects they describe will be attenuated or even entirely = absent. 3: They noted one or two cases of observable effects of hash collisions = in their tests with FQ-Codel. These will be greatly reduced in = prevalence with Cake, due to the set-associative hash function which = specifically addresses that phenomenon. - Jonathan Morton=