24.3. Viewing CPU Usage
24.3.1. Using the System Monitor Tool
The Resources tab of the System Monitor tool allows you to view the current CPU usage on the system.
To start the System Monitor tool, either select Applications → System Tools → System Monitor from the panel, or type
gnome-system-monitorat a shell prompt. Then click the Resources tab to view the system's CPU usage.
Figure 24.3. System Monitor — Resources
In the CPU History section, the System Monitor tool displays a graphical representation of the CPU usage history and shows the percentage of how much CPU is currently in use.