Starlink has bufferbloat. Bad.
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From: David Lang <david@lang.hm>
To: David Lang <david@lang.hm>
Cc: Nathan Owens <nathan@nathan.io>, Dave Taht <dave.taht@gmail.com>,
	 "starlink@lists.bufferbloat.net"
	<starlink@lists.bufferbloat.net>
Subject: Re: [Starlink] recent starlink rrul test result
Date: Thu, 3 Mar 2022 12:37:25 -0800 (PST)	[thread overview]
Message-ID: <sp882r34-92q4-4019-8oo3-68r5n53s19n5@ynat.uz> (raw)
In-Reply-To: <87o7734r-5ns1-q734-0qr-q0o06sp72s46@ynat.uz>

[-- Attachment #1: Type: text/plain, Size: 3000 bytes --]

and the irtt

irtt client --dscp=0xfe -i3ms -d20m fremont.starlink.taht.net

On Thu, 3 Mar 2022, David Lang wrote:

> flent -l 300 --step-size=.05 --socket-stats -H fremont.starlink.taht.net 
> --te=upload_streams=1 -t dlangs-dishy tcp_nup
>
> flent -l 300 --step-size=.05 --socket-stats -H fremont.starlink.taht.net 
> --te=download_streams=1 -t dlangs-dishy tcp_ndown
>
> flent -l 300 --step-size=.05 --socket-stats -H fremont.starlink.taht.net 
> --te=upload_streams=8 -t dlangs-dishy-8 tcp_nup
>
> flent -l 300 --step-size=.05 --socket-stats -H fremont.starlink.taht.net 
> --te=download_streams=8 -t dlangs-dishy-8 tcp_ndown
>
> flent -l 300 --step-size=.05 --socket-stats -H fremont.starlink.taht.net -t 
> dlangs-dishy rrul_be
>
>
> On Thu, 3 Mar 2022, Nathan Owens wrote:
>
>> Same here, Google Meet / Zoom / Teams / FaceTime are great.
>> 
>> Dave, can you post the commands to run those flent measurements? I also
>> finally recreated that irtt-based scatterplot, attached.
>> 
>> On Thu, Mar 3, 2022 at 7:15 AM David Lang <david@lang.hm> wrote:
>> 
>>> That said, I've been using starlink for work zoom calls for a while with
>>> no
>>> significant issues (nothing I can pin on my side vs the other 
>>> participants)
>>> 
>>> David Lang
>>> 
>>> On Thu, 3 Mar 2022, Dave Taht wrote:
>>> 
>>>> wildly variable bandwidth, adjusted at 15 sec intervals, induced
>>>> latencies of 400ms, really terrible upload throughput relative to
>>>> down.
>>>> 
>>>> H/T David Lang for this data.
>>>> 
>>>> On Thu, Mar 3, 2022 at 9:31 AM Livingood, Jason
>>>> <Jason_Livingood@comcast.com> wrote:
>>>>> 
>>>>> When folks experience sub-par video conferencing over Starlink, it'd be
>>> great to see working latency stats at that time - such as via the easy 
>>> test
>>> at https://www.waveform.com/tools/bufferbloat.
>>>>> 
>>>>> On 2/23/22, 09:38, "Starlink on behalf of Dave Taht" <
>>> starlink-bounces@lists.bufferbloat.net on behalf of dave.taht@gmail.com>
>>> wrote:
>>>>> 
>>>>> 
>>> https://urldefense.com/v3/__https://blog.tomevslin.com/2022/02/starlinks-zoomready-rating-is-going-down.html__;!!CQl3mcHX2A!TjZjoTCGYO2gkt9xYrGdFrivrejHIdNjVe0TtEsCuQfDJTyNNy4u3_5CxlN2sj8WTA26WA$
>>>>>
>>>>>     --
>>>>>     I tried to build a better future, a few times:
>>>>> 
>>> https://urldefense.com/v3/__https://wayforward.archive.org/?site=https*3A*2F*2Fwww.icei.org__;JSUl!!CQl3mcHX2A!TjZjoTCGYO2gkt9xYrGdFrivrejHIdNjVe0TtEsCuQfDJTyNNy4u3_5CxlN2sj-yqmwsLA$
>>>>>
>>>>>     Dave Täht CEO, TekLibre, LLC
>>>>>     _______________________________________________
>>>>>     Starlink mailing list
>>>>>     Starlink@lists.bufferbloat.net
>>>>> 
>>> https://urldefense.com/v3/__https://lists.bufferbloat.net/listinfo/starlink__;!!CQl3mcHX2A!TjZjoTCGYO2gkt9xYrGdFrivrejHIdNjVe0TtEsCuQfDJTyNNy4u3_5CxlN2sj_SP7yVhg$
>>>>> 
>>>> 
>>>> 
>>>> _______________________________________________
>>> Starlink mailing list
>>> Starlink@lists.bufferbloat.net
>>> https://lists.bufferbloat.net/listinfo/starlink
>>> 
>

  reply	other threads:[~2022-03-03 20:37 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-02-23 14:37 [Starlink] zoomready result Dave Taht
2022-03-03 14:31 ` Livingood, Jason
2022-03-03 14:36   ` [Starlink] recent starlink rrul test result Dave Taht
2022-03-03 14:45     ` tom
2022-03-03 15:03       ` Dave Taht
2022-03-03 15:15     ` David Lang
2022-03-03 17:16       ` Nathan Owens
2022-03-03 17:42         ` tom
2022-03-03 20:36         ` David Lang
2022-03-03 20:37           ` David Lang [this message]
2022-03-09 14:23   ` [Starlink] zoomready result Nathan Owens
2022-03-09 14:57     ` Dave Taht
2022-03-09 15:17       ` Nathan Owens
2022-03-11 17:05     ` Luis A. Cornejo
2022-03-11 22:48       ` Nathan Owens

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