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Level 1

4 points

MacBook Pro high CPU intermittent

My Mac goes slow intermittently, have noticed kernel task takes 80%cpu and then my come down as well, which machine is not used

MacBook Pro 13″, OS X 10.10

Posted on Aug 19, 2020 7:47 PM

Top-ranking reply

Level 10

146,396 points

Posted on Aug 19, 2020 7:53 PM

Please attempt to capture a screenshot of Activity Monitor when it exhibits that behavior, and post it in a reply.

To learn how to capture, edit (if needed), and post a screenshot to this site please refer to the Appendix in Writing an effective Apple Support Communities Question - Apple Community.

Until then you may find the following Apple Support document applicable: If kernel_task is using a large percentage of your Mac CPU.

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