What are some alternatives?
When comparing Atop and Bashtop, you can also consider the following products
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.
GNOME System Monitor - System Monitor is a tool to manage running processes and monitor system resources.
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.
Stacer - Ubuntu system optimizer
Netdata - Monitor everything in real time – for free
Process Lasso - Process Lasso is NOT yet another task manager.