If you often run processor-intensive apps, it’s good to keep an eye on your Mac’s CPU usage. Fortunately, Apple makes it easy to get a quick look at CPU usage and CPU history by changing the Activity Monitor Dock icon. How to set it up.
RELATED: How to troubleshoot your Mac with Activity Monitor
First open Activity Monitor. If you do not know how to make Spotlight easy. Click the small “magnifying glass”; icon in the menu bar (or press Command + Spacebar). When the “Spotlight Search” field appears, type “Activity Monitor” and press “Return”.
When Activity Monitor opens, you can close the main window with the red “X” button because you do not need it. (To retrieve the latter later, select Window> Activity Monitor in the menu bar or press Command + 1.)
Then right-click on the Activity Monitor icon in the dock and a menu will appear. Select “Dock icon” in the menu and you will see several options. Now select “Show CPU usage”.
When “Show CPU usage” is enabled, the Activity Monitor docking icon will be converted to a 10-segment meter that lights up, depending on how much CPU activity is taking place. For example, if all ten segments are on, use 100% of your CPU capacity.
If you right-click the Activity Monitor dock icon again and choose Dock Icon> View CPU History instead, you will see a black rectangle showing CPU usage over time. The screen flows slowly from right to left, with intense periods of CPU usage giving more height to each column. The red boxes represent CPU usage after system processes, and the green boxes represent CPU usage of user processes.
To change the Activity Monitor icon to normal, right-click its “Dock” icon again and choose Dock Icon> Show Application Icon. Alternatively, you can also configure the Task Monitor Dock icon from the menu bar in the “View” menu. Select the “Dock icon” option and a menu similar to the one we used before will appear.
Once you have configured the Dock icon, just leave the Task Monitor in the background when performing other tasks. The display of CPU usage or CPU history in the dock continues to be updated over time and you can leave the reading indefinitely. The activity monitor must remain running for it to work. as soon as you close the app, its Dock icon will return to normal. Just like Cinderella’s pumpkin!