Re: [Starlink] musk: 28ms median latency on starlink

[J Pan <Pan@uvic.ca>]

it's the user dish (ut) to pop (or ip gateway more precisely, not the
ground station, collocated with the user's home pop) latency. thanks
for the ripe atlas probes---we are hosting and using them too---the
downside of ripe atlas is that it's mostly user hosted (so not always
online) and the space and time granularity of the measurements that
can be done for research
--
J Pan, UVic CSc, ECS566, 250-472-5796 (NO VM), Pan@UVic.CA, Web.UVic.CA/~pan

On Tue, Jun 4, 2024 at 9:33 AM Livingood, Jason via Starlink
<starlink@lists.bufferbloat.net> wrote:
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> First question is what was the test destination? From the CPE to a ground station or to something at a peering point or on the internet? I would assume either to ground station or 1 hop beyond (peering point)… That way we can do apples-to-apples comparisons, so to speak.
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> In any case, there is a lot of good 3rd party data out there for this. First is RIPE Atlas. I helped get a lot of probes deployed in the US and there are now 78 probes connected globally (roughly 30 would be sufficient to call it statistically significant): https://atlas.ripe.net/probes/public?sort=-id&toggle=all&page_size=100&search=AS14593&page=1&status=1. So if you know how to pull data from Atlas, it is there for you to analyze… (see https://atlas.ripe.net/docs/apis/rest-api-manual/ and https://atlas.ripe.net/docs/tools-and-code/latencymon.html
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> There is also this recent report that used a hardware probe connected over ethernet: https://www.netforecast.com/wp-content/uploads/FixedWireless_LEO_CableComparisonReport_NFR5148-1.pdf
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> Another approach similar to accessing RIPE Atlas data would be to get the Cloudflare AIM data from M-Lab – see https://www.measurementlab.net/blog/cloudflare-aimscoredata-announcement/. There was also a recent 3rd party report on that (see Figure 1): https://www.netforecast.com/wp-content/uploads/NFR5150_NetForecast-ISP-Performance-Report-2024.pdf.
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> Jason
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> From: Starlink <starlink-bounces@lists.bufferbloat.net> on behalf of Dave Taht via Starlink <starlink@lists.bufferbloat.net>
> Reply-To: Dave Taht <dave.taht@gmail.com>
> Date: Sunday, June 2, 2024 at 13:13
> To: Dave Taht via Starlink <starlink@lists.bufferbloat.net>
> Subject: [Starlink] musk: 28ms median latency on starlink
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> Via elon musk:
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> Starlink just achieved a new internal median latency record of 28ms yesterday! Great work by the engineering and operations teams.
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> - https://twitter.com/elonmusk/status/1797282250574184587
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> I of course, am very interested in y'all´s external measurements of how well starlink is doing. For me, it is fantastic - 30Mbit uploads nowadays, 0
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> latency on the upload (how?) https://www.waveform.com/tools/bufferbloat?test-id=2a1d139b-87cb-4ba4-a829-e2167801cffe
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> I also keep hoping that the rest of the ISP industry is now paying attention and deploying stuff like fq_codel and cake and libreqos, but, ah well - I will settle for starlink blowing past a lot of dsl and cable and finding ways to get their density up.
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> Anyone going to the Starship launch on the 6th?
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> --
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> https://www.youtube.com/watch?v=BVFWSyMp3xg&t=1098s Waves Podcast
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> Dave Täht CSO, LibreQos
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