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: All-time record downstream, again  (Read 873 times)

Weaver

  • Addicted Kitizen
  • *****
  • Posts: 9812
  • Retd sw dev; A&A; 4 ◊ 7km ADSL2; IPv6; Firebrick
All-time record downstream, again
« on: December 15, 2020, 11:08:19 PM »

I have now once again seen the highest reported downstream speedtester figure ever:
  • speedtest2.aa.net.uk 11.0 Mbps / 1.52 Mbps
  • Ookla speedtest.net  10.4 Mbps / 1.56 Mbps
The upstream figures is exceptionally good too. That is not an upstream record for speedtest2; that stands at ~1.55 Mbps, recorded some while back. The recent Ookla upstream figure is consistent with that of the speedtest2 at 1.56 Mbps, and the similarity between the two gives me increased confidence in both. The figures reported in all cases are the highest across many tests.

Earlier on, for some reason, I had been consistently getting very uninspiring upstream numbers from both the AA speedtester and the Ookla speedtest.net at around 1.15 Mbps. The testmy.net speedtester however had been consistently reporting around 1.35 Mbps upstream.

Live sync rates, 2020-12-20:
  #1: down 3122 kbps, up 528 kbps
  #2: down 3004 kbps, up 570 kbps
  #3: down 2927 kbps, up 392 kbps
  #4: down 3238 kbps, up 570 kbps

[[Update: downstream figure updated in the light of a later test.

  Update: upstream figures updated. 2020-12-20.]]


« Last Edit: December 20, 2020, 02:07:32 PM by Weaver »
Logged

burakkucat

  • Global Moderator
  • Senior Kitizen
  • *
  • Posts: 32539
  • Over the Rainbow Bridge
    • The ELRepo Project
Re: All-time record downstream, again
« Reply #1 on: December 15, 2020, 11:40:40 PM »

So your four bonded lines give you a throughput of approximately twice the throughput which I experience.

[bcat ~]$ speedtest-cli --simple
Ping: 51.859 ms
Download: 4.98 Mbit/s
Upload: 1.02 Mbit/s
[bcat ~]$
Logged
:cat:  100% Linux and, previously, Unix. Co-founder of the ELRepo Project.

Please consider making a donation to support the running of this site.

Weaver

  • Addicted Kitizen
  • *****
  • Posts: 9812
  • Retd sw dev; A&A; 4 ◊ 7km ADSL2; IPv6; Firebrick
Re: All-time record downstream, again
« Reply #2 on: December 16, 2020, 09:54:20 AM »

@Burakkucat: I didnít know your downstream was as high as that, or Iíve forgotten.



Update: a later test with speedtest2.aa.net.uk gives 11.0 Mbps downstream, which is truly amazing considering just a few weeks ago the reported figure was around 9.5 Mbps (very approximately).



Efficiency and exaggeration: I added up the per-line Tx Rate figures for my lines as reported by the clueless.aa.net.uk control server and found that the sum of the downstream tx-rates = 10923570 bps, so my case demonstrates that the speedtest2 exaggerates downstream slightly, since my reported 11.0 Mbps = 100.7% of the tx-rate-total. A point of interest: this possibly suggests that speedtest2.aa.net.uk tries to report IP PDU bytes, not TCP payload data bytes. If we assume that the speedtest2 reports TCP payload data bps then some conversion from IP PDU bytes to/from TCP payload would need to be carried out.

This result suggests that AAís downstream IP bonding is highly efficient.
« Last Edit: December 16, 2020, 11:46:36 AM by Weaver »
Logged

Weaver

  • Addicted Kitizen
  • *****
  • Posts: 9812
  • Retd sw dev; A&A; 4 ◊ 7km ADSL2; IPv6; Firebrick
Re: All-time record downstream, again
« Reply #3 on: December 16, 2020, 12:51:48 PM »

@Burakkucat thank you for the useful tip about the speedtest-cli tool. I got some excellent results with this when I ran it on my Raspberry Pi

    speedtest-cli --simple
        Ping: 47.896 ms
        Download: 10.03 Mbit/s
        Upload: 1.71 Mbit/s

I donít get anywhere near the same downstream values but the upstream values are really high compared to the other speedtest tools. This is after only a few runs.

[[ Update: upstream updated in the light of later tests. ]]
« Last Edit: December 19, 2020, 07:26:46 AM by Weaver »
Logged

burakkucat

  • Global Moderator
  • Senior Kitizen
  • *
  • Posts: 32539
  • Over the Rainbow Bridge
    • The ELRepo Project
Re: All-time record downstream, again
« Reply #4 on: December 16, 2020, 07:47:51 PM »

Hmm . . .  :hmm: 

I believe I am remembering correctly . . . Quite a while ago we, the Kitz community (not just you and me), after some specific testing, came to the conclusion that the speedtest2.aa.net.uk site was consistently exaggerating the displayed throughput rate.
Logged
:cat:  100% Linux and, previously, Unix. Co-founder of the ELRepo Project.

Please consider making a donation to support the running of this site.

Ronski

  • Helpful
  • Kitizen
  • *
  • Posts: 4057
Re: All-time record downstream, again
« Reply #5 on: December 16, 2020, 07:59:19 PM »

It certainly seems to read high on mine, about 50Mbps over on the download, and about 2Mbps over on the upload
Logged
Formerly restrained by ECI and ali,  now surfing along at 390/36  ;D

Weaver

  • Addicted Kitizen
  • *****
  • Posts: 9812
  • Retd sw dev; A&A; 4 ◊ 7km ADSL2; IPv6; Firebrick
Re: All-time record downstream, again
« Reply #6 on: December 17, 2020, 01:10:41 AM »

I had got it into my head that the exaggeration had been fixed, but it seems not so. I reported it to AA some while back.

On another point: speedtest-cli gives very high upstream results: 1.71 Mbps for me. This is 98% of the IP egress rate of 1.744 Mbps at my chosen modem loading factor of 0.95 and a protocol efficiency of 0.884434.
Logged

burakkucat

  • Global Moderator
  • Senior Kitizen
  • *
  • Posts: 32539
  • Over the Rainbow Bridge
    • The ELRepo Project
Re: All-time record downstream, again
« Reply #7 on: December 17, 2020, 04:13:48 PM »

In all honesty, I do not trust the absolute value returned by any "speed tester".

My method of operation is to choose one throughput speed test and then consistently use it . . . only considering the delta between the currently returned data and the data previously returned.
Logged
:cat:  100% Linux and, previously, Unix. Co-founder of the ELRepo Project.

Please consider making a donation to support the running of this site.

Weaver

  • Addicted Kitizen
  • *****
  • Posts: 9812
  • Retd sw dev; A&A; 4 ◊ 7km ADSL2; IPv6; Firebrick
Re: All-time record downstream, again
« Reply #8 on: December 18, 2020, 12:20:34 AM »

Agreed. I feel that way too.

If we could trust speed testers to some minimal level, that is not to knowingly tweak values for the purposes of exaggeration, then we could just take the highest reported value and that would be pretty good.
Logged

GigabitEthernet

  • Kitizen
  • ****
  • Posts: 2096
Re: All-time record downstream, again
« Reply #9 on: December 18, 2020, 10:42:36 AM »

Just use fast.com
Logged

Weaver

  • Addicted Kitizen
  • *****
  • Posts: 9812
  • Retd sw dev; A&A; 4 ◊ 7km ADSL2; IPv6; Firebrick
Re: All-time record downstream, again
« Reply #10 on: December 19, 2020, 06:07:19 AM »

I have attached full stats for all my lines, in a zip file, for anyone whoís interested.

My line 4 downstream is 10% faster than that of the slowest line, at an amazing downstream 3.2Mbps sync rate. I wonder why. There are no obvious defects, rather, itís the other way around.

Live sync rates:
  #1: down 3122 kbps, up 528 kbps
  #2: down 2997 kbps, up 535 kbps
  #3: down 2927 kbps, up 392 kbps
  #4: down 3238 kbps, up 570 kbps
« Last Edit: December 19, 2020, 12:08:11 PM by Weaver »
Logged

Weaver

  • Addicted Kitizen
  • *****
  • Posts: 9812
  • Retd sw dev; A&A; 4 ◊ 7km ADSL2; IPv6; Firebrick
Re: All-time record downstream, again
« Reply #11 on: December 19, 2020, 07:45:26 AM »

Thanks to Gigabitethernet for the tip about fast.com; I did not know of that service. Itís interesting that itís completely broken: first test, with defaults gave 10.0 Mbps down / 3.8 Mbps ups that was with a minimum of 4 maximum of 8 parallel connections. That upstream reading is wildly impossible as the maximum upstream is 1.744 Mbps. Out of interest, I changed the settings to: 8 connections min, 16 max and the results became even more absurd with 24 Mbps being reported for upstream!

The defaults are ridiculous because it reported that it was using a server in Seattle. I changed the default from "English (US)" to "UK" and that caused the server to change to Dorking. The upstream results were still wildly ridiculous though at 12 times the maximum possible!

So I certainly wonít be using that again. Shame because if the bugs were fixed it might have some promise.
« Last Edit: December 19, 2020, 12:08:36 PM by Weaver »
Logged

GigabitEthernet

  • Kitizen
  • ****
  • Posts: 2096
Re: All-time record downstream, again
« Reply #12 on: December 19, 2020, 08:18:14 AM »

Works absolutely fine here, sorry.
Logged

burakkucat

  • Global Moderator
  • Senior Kitizen
  • *
  • Posts: 32539
  • Over the Rainbow Bridge
    • The ELRepo Project
Re: All-time record downstream, again
« Reply #13 on: December 19, 2020, 09:29:04 AM »

I have attached full stats for all my lines, in a zip file, for anyone whoís interested.

The ZIP file has a size of 0 bytes.  :(
Logged
:cat:  100% Linux and, previously, Unix. Co-founder of the ELRepo Project.

Please consider making a donation to support the running of this site.

Weaver

  • Addicted Kitizen
  • *****
  • Posts: 9812
  • Retd sw dev; A&A; 4 ◊ 7km ADSL2; IPv6; Firebrick
Re: All-time record downstream, again
« Reply #14 on: December 19, 2020, 12:10:39 PM »

I have had another attempt at attaching the zipfile.
Logged
Pages: [1] 2
 

anything