Gdu is intended primarily for SSD disks where it can fully utilize parallel processing.
However HDDs work as well, but the performance gain is not so huge.
Enable snaps on Raspberry Pi and install gdu-disk-usage-analyzer
Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.
Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.
Enable snapd
On a Raspberry Pi running the latest version of Raspbian snap can be installed directly from the command line:
sudo apt update
sudo apt install snapd
You will also need to reboot your device:
sudo reboot
After this, install the core snap in order to get the latest snapd:
sudo snap install core
Install gdu-disk-usage-analyzer
To install gdu-disk-usage-analyzer, simply use the following command: