Install wmsysmon by entering the following commands in the terminal:
sudo apt update sudo apt install wmsysmon
Description:
Window Maker dockapp for monitoring your system
wmsysmon is a dockable application for Window Maker (and possibly AfterStep). It monitors system information on interrupt activity, memory use, swap use, and IO.
Homepage: https://github.com/vcaputo/wmsysmon
Version: 0.7.7+git20150808-1
Section: universe/x11