Speedresult sometimes totally broken

[sainio]

I got this
SpeedTest++ version 1.14 Speedtest.net command line interface Info: https://github.com/taganaka/SpeedTest Author: Francesco Laurita [email protected] IP: 37.136.199.120 ( DNA Oyj ) Location: [60.2175, 24.6739] Finding fastest server... 10 Servers onl
ine .......... Server: Loppi speedtest.jtkk.fi:8080 by J��rventaustan kyl��kuituosuuskunta (57.0684 km from you): 11 ms Ping: 11 ms. Jitter: 2 ms. Determine line type (2) ........................ Fiber / Lan line type detected: profile selected fiber Testing dow
nload speed (32) .....................................................................................................................................................................................................................................................
......................................................................................................................................................................................................................................................................
......................................................................................................................................................................................................................................................................
.. Download: 5498.26 Mbit/s Testing upload speed (12) ..................................................................................................... Upload: 76.58 Mbit/s

This is a 5G 1000Mbit/s links, so that's not possible.. I run this every 10 minutes and it happens multiple times per day.

[tb205gti]

It looks liek there is an error where upload is being measured wrongly. I have a 1GB/1GB fiber connection. Speedtest++ 1.14 reports about 200Mbit - but using the ookla webclient gives a correct result of about 900Mbit.

This is an issue I have also seen with the speedtest_cli client before. (and the reason I actually changed to the Speedtest++ client)

[Rafale83]

+1
Sometimes, the recorded speed exceeds the theoretical maximum speed of the GPON tree

[lupusbytes]

SpeedTest++ version 1.14
Speedtest.net command line interface
Info: https://github.com/taganaka/SpeedTest
Author: Francesco Laurita <[email protected]>

IP: XXX.XXX.XXX.XXX ( ********  ) Location: [XX.XXXX, XX.XXXX]
Finding fastest server... 10 Servers online
..........
Server: ******** speedtest.*****.**:8080 by ******** (8.7938 km from you): 6 ms
Ping: 6 ms.
Jitter: 2 ms.
Determine line type (2) ........................
Fiber / Lan line type detected: profile selected fiber

Testing download speed (32) ...........................................................................................................................................
Download: 1062.22 Mbit/s
Testing upload speed (12) .......................................................................................
Upload: 60.79 Mbit/s

I tested this on a DOCSIS 3.1 modem connection, where my PC went through several 1Gbit link ethernet interfaces, before hitting the internet, so it's impossible that i have 1062.22 Mbit/s download speed.

This was my first test after I noticed that Gentoo prompted me to install this tool, instead of Ooklas speedtest-cli as seen below:

 * Messages for package net-analyzer/speedtest-cli-2.1.3-r1:

 * net-analyzer/speedtest-cli is often times inaccurate, especially on faster
 * links, due to its use of the older HTTP-based API. In order to have more
 * accurate measurements, please use net-analyzer/speedtest++ instead.

I will be filing a bug with Gentoo about this, because this tool does not deliver accurate measurements.

[lupusbytes]

https://bugs.gentoo.org/888591