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This article introduces the knowledge of "introduction of three kinds of network speed measurement tools commonly used under Linux". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Fast

Fast is a service provided by Netflix, which can be used not only from the command line, but also directly on the Web side: fast.com.

We can install this tool with the following command:

$npm install-global fast-cli

Whether it is the web side or the command line, it provides the most basic network download speed measurement. The easiest way to use it on the command line is as follows:

$fast

93 Mbps ↓

As can be seen from the above results, if you use the fast command directly, you will only return the network download speed. If you also want to get the upload speed of the network, you need to use the-u option.

$fast-u

"81 Mbps ↓ / 8.3 Mbps ↑

Speedtest

Speedtest is a better known tool. It is written in Python and can be installed using the apt or pip command. You can use it from the command line or import it directly into your Python project.

Installation method:

$sudo apt install speedtest-cli

Or

$sudo pip3 install speedtest-cli

When using it, you can run the speedtest command directly:

$speedtest

Retrieving speedtest.net configuration...

Testing from Tencent cloud computing (140.143.139.14).

Retrieving speedtest.net server list...

Selecting best server based on ping...

Hosted by Henan CMCC 5G (Zhengzhou) [9.69 km]: 28.288 ms

Testing download speed....

Download: 56.20 Mbit/s

Testing upload speed.

Upload: 1.03 Mbit/s

As you can see from the running results, the speedtest command will directly provide the upload / download rate, and the testing process is quite fast. You can write a script to call this command, then conduct regular network tests and save the results in a file or database so that you can track your network status in real time.

IPerf

Iperf is a network performance testing tool that can test TCP and UDP bandwidth quality, measure maximum TCP bandwidth, has multiple parameters and UDP characteristics, and can report bandwidth, delay jitter and packet loss. Using the feature of iperf, it can be used to test the performance of some network devices such as routers, firewalls, switches and so on.

Debian distributions can install iPerf using the following command:

$sudo apt install iperf

This tool is available not only on Linux, but also on Mac and Windows.

If you want to test network bandwidth, you need two computers. Both computers need to be on the same network, one as a server and the other as a client, and both must have iPerf installed.

You can obtain the IP address of the server with the following command:

$ip addr show | grep inet.*brd

Inet 192.168.242.128/24 brd 192.168.242.255 scope global dynamic noprefixroute ens33

We know that in a LAN, our ipv4 address usually starts with 192.168. After running the above command, we need to write down the address of the server, which will be used later.

After that, we start the iperf tool on the server:

$iperf-s

Then we can wait for the client to connect. The client can connect to the server using the following command:

$iperf-c 192.168.242.128

After a few seconds of testing, it will return the network transmission rate and bandwidth.

This is the end of the introduction of three commonly used network speed measurement tools under Linux. Thank you for your reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

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