From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from resqmta-po-04v.sys.comcast.net (resqmta-po-04v.sys.comcast.net [IPv6:2001:558:fe16:19:96:114:154:163]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 1F43B3B29E for ; Thu, 19 Aug 2021 17:17:25 -0400 (EDT) Received: from resomta-po-07v.sys.comcast.net ([96.114.154.231]) by resqmta-po-04v.sys.comcast.net with ESMTP id GpBGm631xbVMMGpPfmwz8q; Thu, 19 Aug 2021 21:17:23 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=comcastmailservice.net; s=20180828_2048; t=1629407843; bh=qlM8N9Q0CyIa//RhSTdVnKSBddvyWZWS5afZIIrA9Fo=; h=Received:Received:Received:Date:From:To:Subject:Message-ID: MIME-Version:Content-Type; b=VzgSKkvQybLNj5x4HhFubApgRrzyNwwmEF1sXHOKA9PwDSLnaz9FgvemNtkd0CxmH WQeJkkAjWyN3kHE+afh9C8FW8oFYSkHw/OTvBRQvA5RUjoadSOmDZt2bv5mLz/QBZQ cTn7l2k3nZWJ9np8Tziwvw0zrKNYPTTEAodqsVF9CutwsesqSyRzWhjdTC/f5yqExa 0qQB/TUBKgtwXRo6ABGL5EjmJjdWP/DcatZRtpUPHr7Yl0LlNOt80Y340iTARwvULK PPjWMrrESEYtdbZRP/MZLsisuj7Pg0gGz74h7G0/uWLoMVzitw1D9jxvhoSdzVT1l0 wcMiZMcBvFmVg== Received: from home.sewingwitch.com ([IPv6:2601:644:881:42b0::3f1]) by resomta-po-07v.sys.comcast.net with ESMTPA id GpPeman9zaziPGpPfmzfDy; Thu, 19 Aug 2021 21:17:23 +0000 X-Xfinity-VMeta: sc=0.00;st=legit Received: from [10.96.7.39] ([10.96.7.39]) (authenticated bits=0) by home.sewingwitch.com (8.14.7/8.14.7) with ESMTP id 17JLHGGR028730 for ; Thu, 19 Aug 2021 14:17:17 -0700 DKIM-Filter: OpenDKIM Filter v2.11.0 home.sewingwitch.com 17JLHGGR028730 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sewingwitch.com; s=default; t=1629407837; bh=qlM8N9Q0CyIa//RhSTdVnKSBddvyWZWS5afZIIrA9Fo=; h=Date:From:To:Subject:In-Reply-To:References:From; b=c/g7+1cJKxQGvERP7ZdyRDwk+yaCQtrYkYlzh7shXc/uA4y0mWo73KQGmwVwx2ZRt nPPKU4yVqn1JPuBUkFzHGT2G/RXCv5jne97AU7Lh/lrhHkoKViBqI042plknBzWcTH N8Ghp0C0qJinU6MBlTWU2J8os67HTogXfMuqG/s4= Date: Thu, 19 Aug 2021 14:17:15 -0700 From: Kenneth Porter To: bloat@lists.bufferbloat.net Message-ID: <6C2AF637474AE2E1E8AC10A0@[192.168.1.16]> In-Reply-To: <80e0a336-06e4-c6b6-a01b-f849296086a6@indexexchange.com> References: <20210815133922.GA18118@unix-ag.uni-kl.de> <20210819071734.GA3936@unix-ag.uni-kl.de> <80e0a336-06e4-c6b6-a01b-f849296086a6@indexexchange.com> X-Mailer: Mulberry/4.1.0a3 (Win32) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline; size=1426 X-Scanned-By: MIMEDefang 2.84 on 10.96.0.132 Subject: Re: [Bloat] Sidebar re illustrating quality (was: New Version Notification for draft-cpaasch-ippm-responsiveness-00.txt) X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 19 Aug 2021 21:17:25 -0000 --On Thursday, August 19, 2021 2:50 PM -0400 Dave Collier-Brown wrote: > I can't actually draw a picture of it here, but there's a good way to > show multiple limiting factor graphically. One is with a bucket, > http://www.imthird.org/the-limiting-factor-concept, but for comparisons > I like a simpler one > > For an example, imagine a large letter "Y" with the stem labelled > "throughput", one arm labelled "latency" and the other "RPM". There's a > dotted-line circle drawn over it so that the two arms touch the circle, > and the stem sticks out through it. > > The diameter of the circle is the "goodness" of the connection, and you > can line up diagrams like this for Bell, Rogers and Telus and see that > they all have fine throughput but lousy latency and RPM. And it extends > to multiple dimensions as well as multiple suppliers, so you could have > a five-legged Y if you wanted. I like three, myself. > > I first saw this used for nutrients in the first edition of "Diet for a > Small Planet", but the editors found it too nerdy and talked the author > into taking it out (:-() American innumeracy is so frustrating. Do you have a link to the "Y" illustration? I'm having trouble visualizing it. Is the Y inverted? I don't understand what you mean by the stem going through the circle if the arms are touching it, or what the stem means.