From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from oxalide-smtp-out.extra.cea.fr (oxalide-smtp-out.extra.cea.fr [132.168.224.13]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id F258D3B29D for ; Tue, 4 Jun 2024 10:53:37 -0400 (EDT) Received: from e-emp-a0.extra.cea.fr (e-emp-a0.extra.cea.fr [132.167.198.35]) by oxalide-sys.extra.cea.fr (8.14.7/8.14.7/CEAnet-Internet-out-4.0) with ESMTP id 454Era80005228 for ; Tue, 4 Jun 2024 16:53:36 +0200 Received: from pps.filterd (e-emp-a0.extra.cea.fr [127.0.0.1]) by e-emp-a0.extra.cea.fr (8.18.1.2/8.18.1.2) with ESMTP id 454D1rbm021127 for ; Tue, 4 Jun 2024 16:53:36 +0200 Received: from muguet2-smtp-out.intra.cea.fr (muguet2-smtp-out.intra.cea.fr [132.166.192.13]) by e-emp-a0.extra.cea.fr (PPS) with ESMTP id 3yggackx53-1 for ; Tue, 04 Jun 2024 16:53:36 +0200 (MEST) Received: from [10.8.32.70] (is156570.intra.cea.fr [10.8.32.70]) by muguet2-sys.intra.cea.fr (8.14.7/8.14.7/CEAnet-Internet-out-4.0) with ESMTP id 454Erakp059239 for ; Tue, 4 Jun 2024 16:53:36 +0200 Content-Type: multipart/alternative; boundary="------------g40CKU1clgrEfn92O8xiYd8Z" Message-ID: <7aa0f8dc-ab09-44d7-88c8-860c2ebc3b0f@gmail.com> Date: Tue, 4 Jun 2024 16:53:36 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird To: starlink@lists.bufferbloat.net References: Content-Language: fr From: Alexandre Petrescu In-Reply-To: X-Proofpoint-GUID: ace4wKz7wrrFfxayrk21oMpb--qgJWZe X-Proofpoint-ORIG-GUID: ace4wKz7wrrFfxayrk21oMpb--qgJWZe Subject: Re: [Starlink] musk: 28ms median latency on starlink 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: Tue, 04 Jun 2024 14:53:38 -0000 This is a multi-part message in MIME format. --------------g40CKU1clgrEfn92O8xiYd8Z Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Le 02/06/2024 à 19:13, Dave Taht via Starlink a écrit : > Via elon musk: > > Starlink just achieved a new internal median latency record of 28ms > yesterday! Great work by the engineering and operations teams. It is indeed excellent news to hear that they achieve such a low latency.  It is worth noting. In addition to fq_codel, cake and libreqos (acronyms I simply cite), if I may speculate how to further decrease the latency: - lower the sat altitudes, maybe at 350km or even at 70km. These are altitudes where starlink sats seem parked at times, maybe right before reaching their stable 500km altitudes.  It means they can stay there, maybe for a shorter time than the times they stay at 500km, but still, for some time. - make the antennas on the sats more 'wide-angle' so to speak, such as to make multiple spots on the ground, possible very distanced, rather than one single spot straight below the sat. - add sat-to-HAP links. (high-alti platforms, i.e. 20km-to-70km), sat-to-plane, sat-to drone links (altitudes 500m-20km). - add sat-to-other-constellations' sats links. - have a dynamic IP routing system between sats and HAPS naturally finding shortest paths, i.e. lowest latencies. I think one could target a 1ms latency. Alex > > - https://twitter.com/elonmusk/status/1797282250574184587 > > 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 > latency on the upload (how?) > https://www.waveform.com/tools/bufferbloat?test-id=2a1d139b-87cb-4ba4-a829-e2167801cffe > > 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. > > Anyone going to the Starship launch on the 6th? > > > > -- > https://www.youtube.com/watch?v=BVFWSyMp3xg&t=1098s > Waves Podcast > Dave Täht CSO, LibreQos > > _______________________________________________ > Starlink mailing list > Starlink@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/starlink --------------g40CKU1clgrEfn92O8xiYd8Z Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit


Le 02/06/2024 à 19:13, Dave Taht via Starlink a écrit :
Via elon musk:

Starlink just achieved a new internal median latency record of 28ms yesterday! Great work by the engineering and operations teams.

It is indeed excellent news to hear that they achieve such a low latency.  It is worth noting.

In addition to fq_codel, cake and libreqos (acronyms I simply cite), if I may speculate how to further decrease the latency:

- lower the sat altitudes, maybe at 350km or even at 70km.   These are altitudes where starlink sats seem parked at times, maybe right before reaching their stable 500km altitudes.  It means they can stay there, maybe for a shorter time than the times they stay at 500km, but still, for some time.

- make the antennas on the sats more 'wide-angle' so to speak, such as to make multiple spots on the ground, possible very distanced, rather than one single spot straight below the sat.

- add sat-to-HAP links. (high-alti platforms, i.e. 20km-to-70km), sat-to-plane, sat-to drone links (altitudes 500m-20km).

- add sat-to-other-constellations' sats links.

- have a dynamic IP routing system between sats and HAPS naturally finding shortest paths, i.e. lowest latencies.

I think one could target a 1ms latency.

Alex


- https://twitter.com/elonmusk/status/1797282250574184587

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

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.

Anyone going to the Starship launch on the 6th?



--
Dave Täht CSO, LibreQos

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