I recently quit kernel_task because it was taking a lot of cpu time, when I was about to force quit it it says you will be logged out but I did not care but then after I force quit it I thought does it disrupt the system?

PS. Is quitting the kernel_task same as logging out?

  • 1
    don't do that. Kernel Task is the core of the os and without it you don't have a usable operating system. – Steve Chambers Aug 23 '17 at 13:18
  • And yes totally agree, but I had done it twice or thrice but I had encountered not problem. – user244378 Aug 23 '17 at 17:20

Killing kernel_task is "killing" your entire system.

It's not the same as logging out; it's asking you to log out because everything will be going down.

From What Is kernel_task, and Why Is It Running on My Mac?

A “kernel,” if you didn’t know, is at the core of any operating system, sitting between your CPU, memory, and other hardware and the software that you run. When your turn on your Mac, the kernel is the first thing that starts, and basically everything you do on your computer flows through the kernel at some point. Activity Monitor puts all of this varied activity under one banner: kernel_task.

  • So should I worry about any software damage? And does reinstall of OS fix it.Because after I force quit kernel_task I decided to reinstall OS. PS. I did a reinstall because in my internet speed it only takes 6 minutes. – user244378 Aug 23 '17 at 17:17
  • Realistically, the only damage would be to open files. You don't need to resinstall macOS after you do something; there's no point in doing so unless there's a bonafide reason. – Allan Aug 23 '17 at 17:58

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