[Starlink] ookla's latest speedtest app does latency under load

Wed May 18 09:29:52 EDT 2022

Don’t worry - result pages are in progress 👍

On Wed, May 18, 2022 at 06:26 Livingood, Jason <Jason_Livingood at comcast.com>
wrote:

> Brennan – It’d also be nice to be able to visit
> https://www.speedtest.net/result/i/5118600624 and expand/see the working
> latency numbers that Luis has below in his results image. 😊
>
>
>
> Jason
>
>
>
> *From: *Starlink <starlink-bounces at lists.bufferbloat.net> on behalf of
> "Luis A. Cornejo" <luis.a.cornejo at gmail.com>
> *Date: *Tuesday, May 17, 2022 at 11:43
> *To: *"Möller, Sebastian" <SMoeller at dpz.eu>
> *Cc: *"starlink at lists.bufferbloat.net" <starlink at lists.bufferbloat.net>,
> Brennen Smith <brennen at ookla.com>
> *Subject: *Re: [Starlink] ookla's latest speedtest app does latency under
> load
>
>
>
> Square dishy. North of Houston, speeds have been subpar recently compared
> to initial setup in late March (100+/10+). My cell is probably saturated
> considering my latitude, bird density, and possibly base station.
>
>
>
> https://www.speedtest.net/my-result/i/5118600624
> <https://urldefense.com/v3/__https:/www.speedtest.net/my-result/i/5118600624__;!!CQl3mcHX2A!ClDU9i5pldSBSrF1P2XIBsAEW10bCIDyoWP37dbqvXLqw_6ldzK4fq4pP1OyFSQoStkfmeGLAqrLqS6OEDgsDTJQYmOWd0Q$>
>
>
>
>
>
>
>
> On Fri, May 13, 2022 at 2:09 PM Möller, Sebastian <SMoeller at dpz.eu> wrote:
>
> Hi Brennan,
>
>
>
> really cool stuff!
>
>
>
>
> On May 13, 2022, at 01:35, Brennen Smith <brennen at ookla.com> wrote:
>
> Hey all,
>
> Here's some details about the final figures:
>
> 1. Loaded latency is simply an extension of the latency stage - same
> methodology and medium
>
>
>
> Where could I find a technical description of that method?
>
>
>
> 2. We use a "warmed up" TCP connection for latency
>
>
>
> Is that one of the load bearing flows or a non load bearing parallel flow
> that has successfully finished the TCP handshake?
>
>
>
> 3. We use the interquartile mean for the "displayed value"
>
>
>
> I wonder whether reporting something like a 95 or 99% quantiles (so either
> 1& and 99%, or 5% and 95%) in addition to min and max and interquartile
> mean would be possible? And since you use the 25 and 75% values already,
> maybe these as well?
>
>
>
> Awesome seeing those numbers in the wild and looking forward to bringing
> more awareness to this issue.
>
>
>
> For sure, so far many discussions about debugging/reducing bufferbloat
> started with people wanting to use the ubiquitious speedtest.nat nodes
> (where finding a close by one typically is easy/possible); and now this
> will actually work (assuming they use Android or iOS clients).
>
>
>
> Question: will the apps for the other OSs as well as the CLI and the web
> version also be changed to include these numbers in the foreseeable future?
>
>
>
>
>
> Kind Regards
>
> Sebastian
>
>
>
>
>
>
> Cheers,
>
> Brennen Smith
>
>
> VP Technology
>
> (206) 739-0807 | brennen at ookla.com
> linkedin.com/in/brennensmith
> <https://urldefense.com/v3/__http:/linkedin.com/in/brennensmith__;!!CQl3mcHX2A!ClDU9i5pldSBSrF1P2XIBsAEW10bCIDyoWP37dbqvXLqw_6ldzK4fq4pP1OyFSQoStkfmeGLAqrLqS6OEDgsDTJQ34tQA8k$>
>
>
> On Thu, May 12, 2022 at 4:18 PM Dave Taht <dave.taht at gmail.com> wrote:
> Yea. peak 2500ms latency on download, 600ms on upload, that's about right.
> :/ The upload figure appears to be a bit lower (better) than what I
> measured 1 year ago, here (for the 30 or so new subscribers on this list,
> this was why I started it):
> https://docs.google.com/document/d/1puRjUVxJ6cCv-rgQ_zn-jWZU9ae0jZbFATLf4PQKblM/edit
> <https://urldefense.com/v3/__https:/docs.google.com/document/d/1puRjUVxJ6cCv-rgQ_zn-jWZU9ae0jZbFATLf4PQKblM/edit__;!!CQl3mcHX2A!ClDU9i5pldSBSrF1P2XIBsAEW10bCIDyoWP37dbqvXLqw_6ldzK4fq4pP1OyFSQoStkfmeGLAqrLqS6OEDgsDTJQ2nOLusM$>
>
> I don't know if ookla are throwing out arp related stuff, or using the
> 99th percentile to calculate the final figure. I hope to learn more about
> their calculations in the coming weeks.
>
> I do keep hoping we can get more updated flent data over longer intervals
> than 20s. With starlink changing their allocation scheme every 15s, what
> number do you pick?
>
> And like I said, some packet caps of this app would be good, too.
>
>
>
> On Thu, May 12, 2022 at 4:07 PM Nathan Owens <nathan at nathan.io> wrote:
> Here's a test I did today:
> https://www.speedtest.net/my-result/i/5112435305
> <https://urldefense.com/v3/__https:/www.speedtest.net/my-result/i/5112435305__;!!CQl3mcHX2A!ClDU9i5pldSBSrF1P2XIBsAEW10bCIDyoWP37dbqvXLqw_6ldzK4fq4pP1OyFSQoStkfmeGLAqrLqS6OEDgsDTJQCvQ4gHo$>
>
>
>
>
>
> On Thu, May 12, 2022 at 4:04 PM Dave Taht <dave.taht at gmail.com> wrote:
> Ookla has just put out an ios and android app that also continuously
> measures latency under load.
>
> I'm interested in calibrating the results of that vs a vs flent
> benchmarks verses starlink. Can someone here give this a shot? More
> details here:
>
>
> https://www.ookla.com/articles/introducing-loaded-latency
> <https://urldefense.com/v3/__https:/www.ookla.com/articles/introducing-loaded-latency__;!!CQl3mcHX2A!ClDU9i5pldSBSrF1P2XIBsAEW10bCIDyoWP37dbqvXLqw_6ldzK4fq4pP1OyFSQoStkfmeGLAqrLqS6OEDgsDTJQtzzxpG8$>
>
> IDEALLY, this would be over wifi -> starlink , with a packet capture
> in the middle. But I'd settle for a few test results from starlink
> folk of this new app, first.
>
> --
> FQ World Domination pending:
> https://blog.cerowrt.org/post/state_of_fq_codel/
> <https://urldefense.com/v3/__https:/blog.cerowrt.org/post/state_of_fq_codel/__;!!CQl3mcHX2A!ClDU9i5pldSBSrF1P2XIBsAEW10bCIDyoWP37dbqvXLqw_6ldzK4fq4pP1OyFSQoStkfmeGLAqrLqS6OEDgsDTJQK32Qzo4$>
> Dave Täht CEO, TekLibre, LLC
> _______________________________________________
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>
>
> --
> FQ World Domination pending:
> https://blog.cerowrt.org/post/state_of_fq_codel/
> <https://urldefense.com/v3/__https:/blog.cerowrt.org/post/state_of_fq_codel/__;!!CQl3mcHX2A!ClDU9i5pldSBSrF1P2XIBsAEW10bCIDyoWP37dbqvXLqw_6ldzK4fq4pP1OyFSQoStkfmeGLAqrLqS6OEDgsDTJQK32Qzo4$>
> Dave Täht CEO, TekLibre, LLC
>
>
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> --

Brennen Smith VP Technology

(206) 739-0807 | brennen at ookla.com

linkedin.com/in/brennensmith <https://www.linkedin.com/in/brennensmith/>

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