What are some alternatives?
When comparing gtop and KSysGuard, you can also consider the following products
vtop - vtop is a graphical command-line tool that uses unicode braille to chart CPU and memory usage.
htop - htop - an interactive process viewer for Unix. This is htop, an interactive process viewer for Unix systems. It is a text-mode application (for console or X terminals) and requires ncurses. Latest release: htop 2.
glances system monitoring - Glances is a cross-platform system monitoring tool written in Python. Written in Python, Glances will run on almost any plaftorm : GNU/Linux, FreeBSD, OS X and Windows.
GNOME System Monitor - System Monitor is a tool to manage running processes and monitor system resources.
gotop - A terminal based graphical activity monitor inspired by gtop and vtop
Windows Task Manager - Need assistance with your Microsoft product? Find helpful articles for Windows, Office, Microsoft Account, Microsoft Store, Xbox, and more.