From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.taht.net (mail.taht.net [IPv6:2a01:7e00:e000:2d4:f00f:f00f:b33b:b33b]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 0F99F3B29E for ; Wed, 2 Mar 2022 15:05:32 -0500 (EST) Received: by mail.taht.net (Postfix, from userid 1013) id 378B222A15; Wed, 2 Mar 2022 20:05:31 +0000 (UTC) Date: Wed, 2 Mar 2022 20:05:31 +0000 From: Dave =?iso-8859-1?Q?T=E4ht?= To: Michael Richardson Cc: tom@evslin.com, starlink@lists.bufferbloat.net Message-ID: <20220302200531.GB6564@mail.taht.net> References: <20ba01d82e63$67eac9f0$37c05dd0$@evslin.com> <22796.1646250926@localhost> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <22796.1646250926@localhost> User-Agent: Mutt/1.5.23 (2014-03-12) Subject: Re: [Starlink] Hello List X-BeenThere: starlink@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: "Starlink has bufferbloat. Bad." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 02 Mar 2022 20:05:32 -0000 On Wed, Mar 02, 2022 at 02:55:26PM -0500, Michael Richardson wrote: > > wrote: > > need to prosper in the hybrid digital world. As all of you know, QoS is much > > more than up and downlink speed and tough-to-quantify jitter is a huge part > > of it. My measurement tool zoomready (at freecheckip.com > > and https://github.com/tevslin/zoomready) makes > > a more or less continuous measurement of jitter but is quite crude; so > > I think that Apple/Stuart did a good job inverting the jitter metric, and calling it > Rounds/Revolutions per Minute. I suggest doing the same in your tool. Except it's NOT a jitter metric. It is a latency under load metric primarily aime at testing in-band (http 2.0 or quic) AQM latency. Most of our other tests to date have a tendency to favor FQ measurements. Certainly jitter can be pulled out of detailed measurements using some of the proposed methodologies. See the rpm@lists.bufferbloat.net list an archives for more details. We have a regular meeting on implementations and new data at 10AM PDT tuesdays if anyone would like to join. > > -- > ] Never tell me the odds! | ipv6 mesh networks [ > ] Michael Richardson, Sandelman Software Works | IoT architect [ > ] mcr@sandelman.ca http://www.sandelman.ca/ | ruby on rails [ > > _______________________________________________ > Starlink mailing list > Starlink@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/starlink