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Activity Monitor User Guide
- Welcome
- View information about processes
- View CPU activity
- View GPU activity
- View memory usage
- View energy consumption
- View disk activity
- View network activity
- View cache activity
- Run system diagnostics
- Quit a process
- Change how often information is updated
- Check if your Mac needs more RAM
- Copyright
Most of the time, the processor on your Mac uses only a small percentage of its processing power. When you use apps that require intensive calculation, the processor uses more of its capacity. View CPU activity on your Mac in the Activity Monitor window.
To enable viewing in the Dock, choose View > Dock Icon, then select the Show CPU option you want to view.
In the Activity Monitor app on your Mac, do any of the following:
To view processor activity over time, click CPU (or use the Touch Bar). The following percentages appear in the bottom of the Activity Monitor window:
System: The percentage of CPU capability that’s being used by processes that belong to macOS.
User: The percentage of CPU capability that’s being used by apps you opened, or by the processes opened by those apps.
Idle: The percentage of CPU capability that’s not being used.
To view current processor activity, choose Window> CPU Usage.
To view recent processor activity, choose Window> CPU History.
To display more columns, choose View>Columns, then choose the columns you want to show.
See alsoUse the Touch Bar on Mac
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