From killing a process, through a regular restart, to Recovery and a bootable external recovery disk, all you need to know about fixing your Mac in macOS 11 and 12.
Activity Monitor
Is logging out and back in again a good way to deal with problems? Although it can be, it might not do what you think it does any more.
If your Mac slows to a crawl, don’t just reboot it. Here’s how to discover what the likely cause is, and a structured approach to recovery.
Is Monterey burning your memory away? Here are two reproducible memory leaks which could explain that, plus two more than might.
How this memory leak probably occurs, which apps it affects, and what you can do to avoid it completely.
What’s the difference between an app and kernel memory leak? How would you notice one, and how to investigate it, and (sometimes) work around the problem.
Your brand new M1 Mac is now unboxed. What next? Here’s a brief guide for anyone new to M1 Macs, which should spare you time and effort.
Using Activity Monitor and command tools to assess performance of a content caching server, and diagnosing problems from the log.
What you can learn about the processes running on your Mac, its processor cores, even the files which an app has open.
Your Mac has slowed to a crawl, with spinning beachballs and a juddery interface. You open Activity Monitor and read this.
