GUI Performance Monitor Tool

I need to monitor the performance of an Ubuntu 12.04 machine. I am looking for a tool similar to PerfMon on Windows.

I need something more interactive that using top from a terminal ; I am looking for something both interactive and GUI-based.

Does anyone have suggestions?

4 Answers

You can use the default System Monitor. Launch it from terminal with gnome-system-monitor or search for System Monitor/Task Manager on the search window in the sidebar. If you prefer to use terminal based system monitor, try htop or nmon

A particular flavor of top that we use here is htop. Still CLI based but much more 'graphical'.

Install it with:

sudo apt-get install htop

run top in terminal.

There are other flavors or top as well but they need to be downloaded.

I've found KSysGuard a more powerful than System Monitor, but they both suffer from the same problem: inaccurate CPU utilization readings, and stale processes. I see processes in KSysGuard that I have quit long ago. Restarting it no longer shows them, but that confirms it's a bug.