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boundary="------------JYUt8JDeu5wmKLuKRkiy2PxU" Content-Language: en-US Subject: Re: [Starlink] latency under load in NZ 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: Wed, 07 Dec 2022 23:27:16 -0000 --------------JYUt8JDeu5wmKLuKRkiy2PxU Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable It always bugs me to read the word "speed" in documents like these when=20 they mean "data rate". The speed for all cable-bound technologies=20 involved is about the same give or take a few percent and it's measured=20 in metres/second. That taken into account, the figures given in the report are believable=20 and reflect my experience here in NZ. What the report doesn't mention is=20 pricing - HFC starts from NZ$53 (US$34) a month with my provider=20 (Vodafone), Fibre Max from NZ$89 (US$57) - what you can get depends on=20 where you are. BTW (Dave already knows) - we've gotten ourselves a Starlink unit as a=20 technology reference platform at the School, and I took it on its first=20 outing last week. We have a roaming subscription (NZ$199 / US$126) so=20 don't expect top data rates. We went to a park in Auckland as campus is=20 too built up and too H&S encumbered for operation on a roof.=C2=A0 This is= =20 what we saw on 3 interleaved tests using speedtest.net in the early=20 afternoon (all figures in Mb/s). *Server* =09 *Test 1* =09 ** =09 ** =09 *Test 2* =09 ** =09 ** =09 *Test 3 * =09 ** =09 ** =09 *Average* =09 ** =09 ** ** =09 /up/ =09 /down/ =09 /ping/ =09 /up/ =09 /down/ =09 /ping/ =09 /up/ =09 /down/ =09 /ping/ =09 /up/ =09 /down/ =09 /ping/ *Spark* =09 15.13 =09 76.01 =09 38 =09 4.18 =09 74.09 =09 4.18 =09 11.52 =09 75.39 =09 92 =09 10.28 =09 75.16 =09 44.73 *Vocusgroup* =09 9.74 =09 64.85 =09 54 =09 1.4 =09 76.56 =09 31 =09 12.27 =09 54.42 =09 36 =09 7.80 =09 65.28 =09 40.33 *MyRepublic* =09 6.74 =09 176.1 =09 33 =09 10.99 =09 129.3 =09 63 =09 11.98 =09 110.6 =09 40 =09 9.90 =09 138.68 =09 45.33 *Kordia* =09 3.01 =09 124.1 =09 43 =09 14.29 =09 150.3 =09 32 =09 2.39 =09 85 =09 63 =09 6.56 =09 119.82 =09 46.00 ** =09 =09 =09 =09 =09 =09 =09 =09 =09 =09 =09 =09 *Average:* =09 8.66 =09 110.27 =09 42.00 =09 7.72 =09 107.58 =09 32.55 =09 9.54 =09 81.36 =09 57.75 =09 8.64 =09 99.74 =09 44.10 Caveat: The park was still Central Auckland, so in an environment where=20 there would have been very few subscribers for many miles around.=20 Physical latency to / from satellite should have been well under 10 ms,=20 so if Dave's rabbiting on about too much latency and bufferbloat in=20 Starlink, he has a serious point here. Even accounting for use of South=20 Island gateways, fibre backhaul to Auckland and BDP-sized buffers along=20 the way, these numbers are not a good look at all! On 8/12/2022 11:11 am, Dave Taht via Starlink wrote: > https://comcom.govt.nz/__data/assets/pdf_file/0028/295804/MBNZ-Spring-Rep= ort-2022-27-October-2022.pdf=20 > > > --=20 > This song goes out to all the folk that thought Stadia would work: > https://www.linkedin.com/posts/dtaht_the-mushroom-song-activity-698136666= 5607352320-FXtz=20 > > Dave T=C3=A4ht CEO, TekLibre, LLC > _______________________________________________ > Starlink mailing list > Starlink@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/starlink=20 > --=20 **************************************************************** Dr. Ulrich Speidel School of Computer Science Room 303S.594 (City Campus) The University of Auckland u.speidel@auckland.ac.nz =20 http://www.cs.auckland.ac.nz/~ulrich/ **************************************************************** --------------JYUt8JDeu5wmKLuKRkiy2PxU Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable

It always bugs me to read the word "speed" in documents li= ke these when they mean "data rate". The speed for all cable-b= ound technologies involved is about the same give or take a few percent and it's measured in metres/second.

That taken into account, the figures given in the report are believable and reflect my experience here in NZ. What the report doesn't mention is pricing - HFC starts from NZ$53 (US$34) a month with my provider (Vodafone), Fibre Max from NZ$89 (US$57) - what you can get depends on where you are. 

BTW (Dave already knows) - we've gotten ourselves a Starlink unit as a technology reference platform at the School, and I took it on its first outing last week. We have a roaming subscription (NZ$199 / US$126) so don't expect top data rates. We went to a park in Auckland as campus is too built up and too H&S encumbered for operation on a roof.  This is what we saw on 3 interleaved tests using speedtest.net in the early afternoon (all figures in Mb/s).

Server

Test 1

 

 

Test 2

 

 

Test 3

 

 

Average

 

 

 

up

down

ping

up

down

ping

up

down

ping

up

down

ping

Spark

15.13

76.01

38

4.18

74.09

4.18

11.52

75.39

92

10.28

75.16

44.73

Vocusgroup

9.74

64.85

54

1.4

76.56

31

12.27

54.42

36

7.80

65.28

40.33

MyRepublic

6.74

176.1

33

10.99

129.3

63

11.98

110.6

40

9.90

138.68

45.33

Kordia

3.01

124.1

43

14.29

150.3

32

2.39

85

63

6.56

119.82

46.00

 

 

 

 

 

 

 

 

 

 

 

 

 

Average:

8.66

110.27

42.00

7.72

107.58

32.55

9.54

81.36

57.75

8.64

99.74

44.10

Caveat: The park was still Central Auckland, so in an environment where there would have been very few subscribers for many miles around. Physical latency to / from satellite should have been well under 10 ms, so if Dave's rabbiting on about too much latency and bufferbloat in Starlink, he has a serious point here. Even accounting for use of South Island gateways, fibre backhaul to Auckland and BDP-sized buffers along the way, these numbers are not a good look at all!

On 8/12/2022 11:11 am, Dave Taht via Starlink wrote:
=20 https= ://comcom.govt.nz/__data/assets/pdf_file/0028/295804/MBNZ-Spring-Report-202= 2-27-October-2022.pdf

--
This song goes out to all the folk that thought Stadia would work: https://www.linked= in.com/posts/dtaht_the-mushroom-song-activity-6981366665607352320-FXtz<= br> Dave T=C3=A4ht CEO, TekLibre, LLC
_______________________________________________
Starlink mailing list
Starlink@lists.bufferbloat.net
https://lists.bufferbloat.net/listinfo/starlink
--=20
****************************************************************
Dr. Ulrich Speidel

School of Computer Science

Room 303S.594 (City Campus)

The University of Auckland
u.speidel@auckland.ac.nz=20
http://www.cs.auckland.ac.nz/~ulrich/
****************************************************************
--------------JYUt8JDeu5wmKLuKRkiy2PxU--