Want to monitor Ubuntu system resources usage momentarily? There’s a gnome extension allows to display CPU usage, Memory usage, network speed, disk, GPU, and battery informations in Ubuntu 18.04 Gnome status bar.

The system monitor extension features:

• Display informations for CPU, GPU, Memory, Swap, Net, Disk, Fan, Battery
• Display resource usage in panel via digit or graph
• A drop-down menu with detailed information.
• Ability to set gragh width, background color, refresh time.
• Show tooltips.

1. To install the extension, first open terminal either via Ctrl+Alt+T keyboard shortcut or by searching for ‘terminal’ from application menu.

When it opens, run command to install the necessary system libraries:

sudo apt-get install gir1.2-gtop-2.0 gir1.2-networkmanager-1.0  gir1.2-clutter-1.0

Type user password (no asterisk feedback due to security reason) when it prompts and hit Enter.

2. Open Ubuntu Software and then search for ‘system monitor extension’.

There are a few similar extensions available. In the case, I installed the last one.

3. You’ll see the indicator applet once you installed the extension. Click to show drop-down menu, then go to Preferences and change the applet appearance.