Idle

A tortoise (slowly) crossing a path.

Why Your System is Slow Even Though the CPU Is Idle

The purpose of the System Idle Process is to get out of the way to let other processes run. So what does it mean if the SIP is using 100% CPU on your slow system?

Twiddling Thumbs

What is the System Idle Process and Why Is It Using Most of the CPU?

Can a computer really do nothing? Yes and no. When it’s doing nothing, it has to do something, and that something is the System Idle Process, waiting for something to do.

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