Kitz ADSL Broadband Information
adsl spacer  
Support this site
Home Broadband ISPs Tech Routers Wiki Forum
 
     
   Compare ISP   Rate your ISP
   Glossary   Glossary
 
Please login or register.

Login with username, password and session length
Advanced search  

News:

Pages: 1 [2]

Author Topic: Speedtesters  (Read 8103 times)

Weaver

  • Senior Kitizen
  • ******
  • Posts: 11459
  • Retd s/w dev; A&A; 4x7km ADSL2 lines; Firebrick
Re: Speedtesters
« Reply #15 on: August 24, 2016, 03:31:55 PM »

@kitz I did some experiments a while ago on many of the ookla servers dotted around England. I didn't make the mistake of assuming that a North of England server would be the fastest.
For me the London ones, although they are, as you rightly say, are expected to be the fastest, came out with slightly lower readings than ones around the M4 corridor to the west of London. Iirc Newbury or Maidenhead was the fastest. Now this could I suppose possibly have changed if I did my tests before AA did expensive network upgrades in Docklands at the start of the year.

However, I told myself at the time that perhaps the London ones were simply very busy, very popular, either heavily loaded themselves or on pipes that carried a lot of traffic related or unrelated.
Logged

Weaver

  • Senior Kitizen
  • ******
  • Posts: 11459
  • Retd s/w dev; A&A; 4x7km ADSL2 lines; Firebrick
Re: Speedtesters
« Reply #16 on: August 24, 2016, 04:11:12 PM »

If you have a server 100 mi north of London, and my ping has to go down to London and then back up northwards (for one half of the round trip), then that will be an effective extra round trip time of 0.7 ms if you assume an (effective) refractive index of 1.48 for single mode optic fibre. (From stackexchange for physics of sm fibres and the properties of materials.) This is nothing much compared to my ping times to ookla servers reported as >40 ms. (Does this mean the duration of half or of the whole round trip time?)

So geography is, for me anyway, a lot less important than extra hop count or busy servers or links.
Logged

Weaver

  • Senior Kitizen
  • ******
  • Posts: 11459
  • Retd s/w dev; A&A; 4x7km ADSL2 lines; Firebrick
Re: Speedtesters
« Reply #17 on: August 24, 2016, 04:17:15 PM »

Ookla speedtest iPad app, a few tests just after 15:40 Wed:

47 ms: 6.31 / 0.80 and 6.32 / 0.83 Mbps - Maidenhead, XILO
44 ms: 6.43 / 0.82 and 6.37 / 0.80 Mbps - Newbury, Vodafone
43 ms: 6.48 / 0.83 and 6.42 / 0.81 Mbps - London, Vodafone
42 ms: 6.56 / 0.86 and 6.47 / 0.67 Mbps - London, Coreix
Logged

Weaver

  • Senior Kitizen
  • ******
  • Posts: 11459
  • Retd s/w dev; A&A; 4x7km ADSL2 lines; Firebrick
Re: Speedtesters
« Reply #18 on: August 24, 2016, 04:36:53 PM »

Northern servers

63 ms: 4.72 / 0.82 - Aberdeen, Internet For Business Ltd
55 ms: 6.40 / 0.80 - Carlisle, Gemini Group
53 ms: 6.51 / 0.85 - Aberdeen, Converged Communication Solutions

And one very odd, noisy, result from the furthest south:

60 ms: 6.51 / 0.70 Mbps, and 50 ms: 6.19 / 0.69 and 6.50 / 0.69 - BT Lancashire Services
Logged

GigabitEthernet

  • Kitizen
  • ****
  • Posts: 2243
Re: Speedtesters
« Reply #19 on: August 24, 2016, 04:41:28 PM »

My ping to Canterbury is apparently 1ms! Is that where TalkTalk's gateways are?



London is around 7-8ms.
Logged

Weaver

  • Senior Kitizen
  • ******
  • Posts: 11459
  • Retd s/w dev; A&A; 4x7km ADSL2 lines; Firebrick
Re: Speedtesters
« Reply #20 on: August 24, 2016, 04:48:35 PM »

If I were really organised, I could work out what the IP address of those ookla servers is, by observing the active TCP or UDP connections reported by the os. And then I could traceroute to them just to see what the network topology is like at least.

That's not going to really give an answer to GigabitEthernet's question though, not if we want real geography.
Logged

Weaver

  • Senior Kitizen
  • ******
  • Posts: 11459
  • Retd s/w dev; A&A; 4x7km ADSL2 lines; Firebrick
Re: Speedtesters
« Reply #21 on: August 24, 2016, 04:53:03 PM »

It shows you anyway that you do have to be really careful, as the best result for download is 1.37 times the worst. And some servers, though not all, have some variation from one test to another. I'm also assuming, hopefully, that there was no inbound or outbound activity on my own internet connection at the time of the tests, as that would really stuff things up, but I suspect I would see that in the pings' times?
« Last Edit: August 24, 2016, 05:03:27 PM by Weaver »
Logged

GigabitEthernet

  • Kitizen
  • ****
  • Posts: 2243
Re: Speedtesters
« Reply #22 on: August 24, 2016, 05:01:09 PM »

That 1ms result is clearly wrong. If I perform a ping on the IP/hostname of the second hop of any tracert, the best ping I can get is 5ms. That result is impossible.
Logged

kitz

  • Administrator
  • Senior Kitizen
  • *
  • Posts: 33879
  • Trinity: Most guys do.
    • http://www.kitz.co.uk
Re: Speedtesters
« Reply #23 on: August 24, 2016, 10:57:42 PM »

If I were really organised, I could work out what the IP address of those ookla servers is,
That's not going to really give an answer to GigabitEthernet's question though, not if we want real geography.

No need.  Theres a list here.   
Thats the list I used to be able to do my tracerts earlier.  Just search for the location name and it will give you the host name, and a trace should automatically give you the IP.


Quote
That's not going to really give an answer to GigabitEthernet's question though, not if we want real geography.

1 ms is impossible.   Its usually a minimum of 6ms to the RAS or core entry point (depending on who the ISP is or if its WBC).


Code: [Select]
<server url="http://speedtest.thinkdedicated.com/speedtest/upload.aspx" lat="51.2750" lon="1.0870" name="Canterbury" country="Great Britain" cc="GB" sponsor="Cloud Space UK" id="1531" host="speedtest.thinkdedicated.com:8080"/>
It even gives the longitude and latitude of the locataion :)



Code: [Select]
Tracing route to www.thinkdedicated.com [91.239.125.30]
over a maximum of 30 hops:

  1    <1 ms    <1 ms    <1 ms  192.168.1.1
  2    12 ms    12 ms    12 ms  lo0.10.central10.pcl-bng01.plus.net [195.166.130.138]
  3    12 ms    16 ms    14 ms  irb.10.PCL-CR02.plus.net [84.93.249.82]
  4    13 ms    13 ms    13 ms  195.99.126.98
  5    14 ms    13 ms    13 ms  core3-te0-19-0-21.faraday.ukcore.bt.net [109.159.249.159]
  6    14 ms    13 ms    13 ms  213.137.183.34
  7    13 ms    13 ms    13 ms  ldn-b3-link.telia.net [213.248.67.97]
  8    13 ms    13 ms    13 ms  ldn-bb3-link.telia.net [62.115.117.6]
  9    13 ms    13 ms    13 ms  ldn-b3-link.telia.net [62.115.137.201]
 10    13 ms    13 ms    13 ms  THINK-SYSTE.ear1.London1.Level3.net [195.50.124.74]
 11    13 ms    13 ms    13 ms  91-239-125-30.thinkdedicated.com [91.239.125.30]

Quote
Iirc Newbury or Maidenhead was the fastest.
Yes I always use Maidenhead for the same reason.   A lot of Plusnets gateways are also at Docklands, although they do have some central london.

Logged
Please do not PM me with queries for broadband help as I may not be able to respond.
-----
How to get your router line stats :: ADSL Exchange Checker

kitz

  • Administrator
  • Senior Kitizen
  • *
  • Posts: 33879
  • Trinity: Most guys do.
    • http://www.kitz.co.uk
Re: Speedtesters
« Reply #24 on: August 24, 2016, 11:29:22 PM »

Hi

I hope you don't mind, but plus.net have used our speedtest server recently

Here's the link to the test if your interested

Many thanks

John

http://www.speedguide.net/speedtest/results_img.php?test=4573622

Added :)
Logged
Please do not PM me with queries for broadband help as I may not be able to respond.
-----
How to get your router line stats :: ADSL Exchange Checker

Weaver

  • Senior Kitizen
  • ******
  • Posts: 11459
  • Retd s/w dev; A&A; 4x7km ADSL2 lines; Firebrick
Re: Speedtesters
« Reply #25 on: August 25, 2016, 03:44:09 AM »

For some unknown reason, I just get a blank page on my iPad in Safari when I follow the link
     https://www.speedtest.net/speedtest-servers.php

I tried in another iOS web browser, iCab, too. Although possibly they share too much common code
Logged

jelv

  • Helpful
  • Kitizen
  • *
  • Posts: 2054
Re: Speedtesters
« Reply #26 on: August 25, 2016, 08:22:30 AM »

When looking for the 'closest' server you must take in to account where your connection leaves the ISPs network and connects to the internet. So for example on Plusnet a user in Inverness is over 800 miles away from the speedtest.net server hosted by Internet for Business in Aberdeen.

(This was certainly the case on their old network - it may not be true on the new - I don't know)
Logged
Broadband and Line rental: Zen Unlimited Fibre 2, Mobile: Vodaphone
Router: Fritz!Box 7530

kitz

  • Administrator
  • Senior Kitizen
  • *
  • Posts: 33879
  • Trinity: Most guys do.
    • http://www.kitz.co.uk
Re: Speedtesters
« Reply #27 on: August 25, 2016, 12:05:12 PM »

For some unknown reason, I just get a blank page on my iPad in Safari when I follow the link
     https://www.speedtest.net/speedtest-servers.php

I tried in another iOS web browser, iCab, too. Although possibly they share too much common code

Its just a php webpage that outputs all the servers info in xml format.   There's no style sheet to make it look pretty and its just plain text output.
A quick google shows that iCab on iOS doesn't support xml parsing. [it requires a Microsoft XML parser which is not available on the iPad.]
It looks like Safari on iOS doesnt have an inbuilt xml parser either.

« Last Edit: August 25, 2016, 12:08:38 PM by kitz »
Logged
Please do not PM me with queries for broadband help as I may not be able to respond.
-----
How to get your router line stats :: ADSL Exchange Checker

Weaver

  • Senior Kitizen
  • ******
  • Posts: 11459
  • Retd s/w dev; A&A; 4x7km ADSL2 lines; Firebrick
Re: Speedtesters
« Reply #28 on: August 25, 2016, 12:20:02 PM »

Ah. They could do with some minimal CSS for the XML then. At least it's not me going mad. ;D
Logged
Pages: 1 [2]
 

anything