<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=Windows-1252">
<style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style>
</head>
<body dir="ltr">
<div class="elementToProof"><span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">The use of the term "speed" in communications used to be restricted to the speed of light
(or whatever propagation speed one happened to be dealing with. Everything else was a "rate". Maybe I'm old-fashioned but I think talking about "speed tests" muddies the waters rather a lot.<br>
</span></div>
<div class="elementToProof">
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div id="Signature">
<div>
<div name="divtagdefaultwrapper" style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:; margin:0">
</div>
<div name="divtagdefaultwrapper" style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:; margin:0">
<div style="font-family:Tahoma; font-size:13px">
<div style="font-family:Tahoma; font-size:13px"><span class="moz-txt-tag">-- <br>
</span>**************************************************************** <br>
Dr. Ulrich Speidel <br>
<br>
Department of Computer Science <br>
<br>
Room 303S.594<br>
Ph: (+64-9)-373-7599 ext. 85282 <br>
<br>
The University of Auckland <br>
<a href="mailto:u.speidel@auckland.ac.nz" title="mailto:u.speidel@auckland.ac.nz">u.speidel@auckland.ac.nz</a><br>
<a class="moz-txt-link-freetext" tabindex="0" href="http://www.cs.auckland.ac.nz/%7Eulrich/">http://www.cs.auckland.ac.nz/~ulrich/</a><br>
**************************************************************** <br>
</div>
</div>
</div>
</div>
</div>
</div>
<div id="appendonsend"></div>
<hr style="display:inline-block;width:98%" tabindex="-1">
<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Starlink <starlink-bounces@lists.bufferbloat.net> on behalf of rjmcmahon via Starlink <starlink@lists.bufferbloat.net><br>
<b>Sent:</b> Thursday, January 5, 2023 9:02 AM<br>
<b>To:</b> jf@jonathanfoulkes.com <jf@jonathanfoulkes.com><br>
<b>Cc:</b> Cake List <cake@lists.bufferbloat.net>; IETF IPPM WG <ippm@ietf.org>; libreqos <libreqos@lists.bufferbloat.net>; Dave Taht via Starlink <starlink@lists.bufferbloat.net>; Rpm <rpm@lists.bufferbloat.net>; bloat <bloat@lists.bufferbloat.net><br>
<b>Subject:</b> Re: [Starlink] [Rpm] the grinch meets cloudflare's christmas present</font>
<div> </div>
</div>
<div>Curious to why people keep calling capacity tests speed tests? A semi at <br>
55 mph isn't faster than a porsche at 141 mph because its load volume is <br>
larger.<br>
<br>
Bob<br>
> HNY Dave and all the rest,<br>
> <br>
> Great to see yet another capacity test add latency metrics to the<br>
> results. This one looks like a good start.<br>
> <br>
> Results from my Windstream DOCSIS 3.1 line (3.1 on download only, up<br>
> is 3.0) Gigabit down / 35Mbps up provisioning. Using an IQrouter Pro<br>
> (an i5 x86) with Cake set for 710/31 as this ISP can’t deliver<br>
> reliable low-latency unless you shave a good bit off the targets. My<br>
> local loop is pretty congested.<br>
> <br>
> Here’s the latest Cloudflare test:<br>
> <br>
> <br>
> <br>
> <br>
> And an Ookla test run just afterward:<br>
> <br>
> <br>
> <br>
> <br>
> They are definitely both in the ballpark and correspond to other tests<br>
> run from the router itself or my (wired) MacBook Pro.<br>
> <br>
> Cheers,<br>
> <br>
> Jonathan<br>
> <br>
> <br>
>> On Jan 4, 2023, at 12:26 PM, Dave Taht via Rpm <br>
>> <rpm@lists.bufferbloat.net> wrote:<br>
>> <br>
>> Please try the new, the shiny, the really wonderful test here:<br>
>> <a href="https://speed.cloudflare.com">
https://speed.cloudflare.com/</a><br>
>> <br>
>> I would really appreciate some independent verification of<br>
>> measurements using this tool. In my brief experiments it appears - as<br>
>> all the commercial tools to date - to dramatically understate the<br>
>> bufferbloat, on my LTE, (and my starlink terminal is out being<br>
>> hacked^H^H^H^H^H^Hworked on, so I can't measure that)<br>
>> <br>
>> My test of their test reports 223ms 5G latency under load , where<br>
>> flent reports over 2seconds. See comparison attached.<br>
>> <br>
>> My guess is that this otherwise lovely new tool, like too many,<br>
>> doesn't run for long enough. Admittedly, most web objects (their<br>
>> target market) are small, and so long as they remain small and not<br>
>> heavily pipelined this test is a very good start... but I'm pretty<br>
>> sure cloudflare is used for bigger uploads and downloads than that.<br>
>> There's no way to change the test to run longer either.<br>
>> <br>
>> I'd love to get some results from other networks (compared as usual to<br>
>> flent), especially ones with cake on it. I'd love to know if they<br>
>> measured more minimum rtts that can be obtained with fq_codel or cake,<br>
>> correctly.<br>
>> <br>
>> Love Always,<br>
>> The Grinch<br>
>> <br>
>> --<br>
>> This song goes out to all the folk that thought Stadia would work:<br>
>> <a href="https://www.linkedin.com/posts/dtaht_the-mushroom-song-activity-6981366665607352320-FXtz">
https://www.linkedin.com/posts/dtaht_the-mushroom-song-activity-6981366665607352320-FXtz</a><br>
>> Dave Täht CEO, TekLibre, LLC<br>
>> <image.png><tcp_nup-2023-01-04T090937.211620.LTE.flent.gz>_______________________________________________<br>
>> Rpm mailing list<br>
>> Rpm@lists.bufferbloat.net<br>
>> <a href="https://lists.bufferbloat.net/listinfo/rpm">
https://lists.bufferbloat.net/listinfo/rpm</a><br>
> <br>
> <br>
> _______________________________________________<br>
> Rpm mailing list<br>
> Rpm@lists.bufferbloat.net<br>
> <a href="https://lists.bufferbloat.net/listinfo/rpm">
https://lists.bufferbloat.net/listinfo/rpm</a><br>
_______________________________________________<br>
Starlink mailing list<br>
Starlink@lists.bufferbloat.net<br>
<a href="https://lists.bufferbloat.net/listinfo/starlink">https://lists.bufferbloat.net/listinfo/starlink</a><br>
</div>
</body>
</html>