From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.taht.net (mail.taht.net [IPv6:2a01:7e00::f03c:91ff:feae:7028]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id BF3183CB35 for ; Thu, 2 Nov 2017 16:25:31 -0400 (EDT) Received: from nemesis.taht.net (unknown [IPv6:2603:3024:1536:86f0:2e0:4cff:fec1:1206]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.taht.net (Postfix) with ESMTPSA id C4C4621341; Thu, 2 Nov 2017 20:25:29 +0000 (UTC) From: Dave Taht To: Jonathan Morton Cc: Dave Taht , Cake List References: <20171026171749.45134-1-jeffrey.t.kirsher@intel.com> <20171026171749.45134-2-jeffrey.t.kirsher@intel.com> <20171101222425.293b80ce@shemminger-XPS-13-9360> <87efpgo9gy.fsf@nemesis.taht.net> Date: Thu, 02 Nov 2017 13:25:28 -0700 In-Reply-To: (Jonathan Morton's message of "Thu, 2 Nov 2017 20:17:18 +0200") Message-ID: <87vaismnrb.fsf@nemesis.taht.net> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain Subject: Re: [Cake] Fwd: [iproute2 1/2] tc: Add support for the CBS qdisc 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, 02 Nov 2017 20:25:31 -0000 Jonathan Morton writes: > I looked up how it's supposed to work. > > Seems like it relies on a fixed bandwidth underlying link, and piggybacks on its > clocks to maintain the associated state in realtime. Obviously designed to be > implemented in hardware using an adder and an accumulator, rather than > on a CPU. > > The parameters required are a direct reflection of what such hardware requires, > and are not at all user friendly. Well, having just heard of it, I'm building it as part of my next build of net-next. I would certainly like to be able to pour much of cake into hardware. We've got billions of spare transistors nowadays.... > - Jonathan Morton