SerwerWeb.pl

The following tutorial describes how to quickly check the speed of our disk using the dd command.
The command will work for both Debian systems, Ubuntu and CentOS

It all comes down to issuing one command in the console.

We log into the terminal of our server, computer or wherever we want to check the speed and issue a command:

dd if=/dev/zero of=/tmp/test bs=64k count=16k conv=fdatasync

we get the result:

This is the result for the SSDNvme drive:

16384+0 read records
16384+0 zapisanych recordów
skopiowane 1073741824 bytes (1,1 GB), 1,1295 s, 951 MB / s

Now, for comparison, the result from a regular SSD drive:

16384+0 records read
16384+0 zapisanych rekordów
skopiowane 1073741824 bytes (1,1 GB, 1,0 GiB), 2,631 s, 408 MB / s

And as a curiosity, a completely new regular HDD:

16384+0 read records
16384+0 zapisanych recordów
skopiowane 1073741824 bytes (1,1 GB), 7,47575 s, 144 MB / s

There is a world of difference in the type of true drive? 🙂