Xosview
From Linuxintro
xosview is a command that shows the system resources' utilization.
Install it
SUSE Linux
yast -i xosview
Debian-based systems
In Debian-based distributions, e.g. Kubuntu, Ubuntu and Debian with:
sudo apt-get install xosview
know-how
On modern computers with 40 or more CPU threads xosview shows too much information. To reduce this, call it like
xosview -cpu -ints
