From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lj1-x22d.google.com (mail-lj1-x22d.google.com [IPv6:2a00:1450:4864:20::22d]) (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 CE35D3B29E for ; Sun, 14 Jun 2020 10:43:11 -0400 (EDT) Received: by mail-lj1-x22d.google.com with SMTP id n24so16083993lji.10 for ; Sun, 14 Jun 2020 07:43:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=S6sQYQKbwl6D2do4GJGoM0FGNKQArZvIOxSM7tmUl5I=; b=F38UtU5UzQXtWY0bh2LmWPr0v/hghPGwzVJAWCSpkMlDLEUZXKVX8BcM48iEmzfm7b NJ5hoWUp0qRfqynO21yYl6fferZ7KnPP/BzgQFwhfJ/oZ0sblBKIu1js+ubrt7YkfJuU 6hyRXZOyylNSHoJb0qoXiMccS8Pg/BO47iKc9WnSvmLTDOIRILPJPxHqqj7e5ZChgPhM tm1HGgXoMD8DoD3CxH621hTESj6b73lHwk51llM4+RiDzZt3sA/8tsjjd5uaXFjiYayN S7XFE4lP+xi7WRot2s6GVzOQEiK26D+qP+T3bTz189WdXHNSgnnD6kXFWoTNqiU6U9FE SyRw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=S6sQYQKbwl6D2do4GJGoM0FGNKQArZvIOxSM7tmUl5I=; b=tEEhK93MKZdKo73CUYYuYqlMXvjMHo81eteniyneVi5lSxTXpmgdBCjmom7AgUubE9 G1XBSWuuH+fzryhzV+RRMVbXw8+6GNh7YNEPSKBCFt678l8SfIJGV5DWI70YuBFYk4qP 2sdouPFaNzY71CaO0hG+iQy9Fn1EwKdKHdh6hLEnYeQtmhRQAhLTSGDMg1lQ1fLpzTF8 EAfNz+JHr7MHiYglrYH8CMR9BPfE7D5mvCYz4tLYEFuLhyF50ppCsc505Eof7zC9JsRY eXX0jQ5l11NCvMWzH57P8amKCVmB0q5Mf0vjp/tEyhnxWtLEM6DSp9PDJmQHVOi0bksL Ly0g== X-Gm-Message-State: AOAM530lsVqklRC/0SG+UTF99IH2NaG45ed+n4gQf17ut0Nuxk1UdOYs iM5aIh7cniFutKk9fvlXP38= X-Google-Smtp-Source: ABdhPJwmJfKVV6bV/qzVHJm7TKouGFks2LXz6Tr6xkIvYZfSoQz9FSya+oWn7AezBge69OSJozhbbg== X-Received: by 2002:a05:651c:299:: with SMTP id b25mr11917662ljo.13.1592145790772; Sun, 14 Jun 2020 07:43:10 -0700 (PDT) Received: from jonathartonsmbp.lan (83-245-237-14-nat-p.elisa-mobile.fi. [83.245.237.14]) by smtp.gmail.com with ESMTPSA id 11sm3304036lju.118.2020.06.14.07.43.09 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Sun, 14 Jun 2020 07:43:10 -0700 (PDT) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 11.5 \(3445.9.5\)) From: Jonathan Morton In-Reply-To: Date: Sun, 14 Jun 2020 17:43:08 +0300 Cc: =?utf-8?Q?Toke_H=C3=B8iland-J=C3=B8rgensen?= , Cake List , Dave Taht , Vybhav Pai , Shrinidhi Varna , "Mohit P. Tahiliani" , Deepak K Content-Transfer-Encoding: quoted-printable Message-Id: <1F6D30F9-A697-4588-9AB7-2A3757924900@gmail.com> References: <87wo5okhbo.fsf@toke.dk> <875zd6h3bu.fsf@toke.dk> <7FCC9B1F-7F4B-43E8-B557-88B2A845C28B@gmail.com> <48938727-0CFF-4B72-B82B-49E0535E9B82@gmail.com> <87y2pgi5ue.fsf@toke.dk> To: Avakash bhat X-Mailer: Apple Mail (2.3445.9.5) Subject: Re: [Cake] Query on ACK 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, 14 Jun 2020 14:43:12 -0000 > On 14 Jun, 2020, at 3:43 pm, Avakash bhat = wrote: >=20 > I wanted another clarification on the results obtained by the Ack = filtering experiment( Fig 6) .=20 > Was the experiment conducted with only ack filtering enabled?=20 > Or was set associative hash and the other modules of Cake enabled = along with Ack filtering while running this experiment ? The test was run on a complete implementation of Cake, set up in the = normal way. I think we kept the configuration simple for this test, so = everything at defaults except for choosing the shaped bandwidth in each = direction. The ack-filter relies on having fairly good flow isolation, so that = consecutive packets in the appropriate queue belong to the same ack = stream. So at minimum it is appropriate to have the set-associative = flow hash enabled. The host-fairness and Diffserv features were probably enabled, but did = not have relevant effects in this case, since only one pair of hosts and = the Best Effort DSCP were used in the traffic. - Jonathan Morton=