Install wmforkplop by entering the following commands in the terminal:
sudo apt update sudo apt install wmforkplop
Description:
monitors forking activity and displays top CPU consuming processes
Wmforkplop monitors the forking activity of the kernel and displays a list of the most CPU consuming processes. Although primarily aimed at Windowmaker, it will run on any window manager, either as a dockapp or as a standard X11 application.
Homepage: http://hules.free.fr/wmforkplop
Version: 0.9.3-2.1build4
Section: universe/x11