Speed Up Booting, Sleeping, and Waking

In this chapter, I discuss a number of factors that can influence how long it takes a Mac to boot. In addition, I explore an issue that can significantly affect how long it takes for a notebook Mac to enter and exit sleep mode—as well as how much disk space is used.

Learn What Influences Startup Speed

When you turn on or restart your Mac, it has to read thousands of files from your disk, copy a fair amount of data into RAM, and launch a number of processes, most of which run invisibly in the background. Beyond what macOS itself needs in order to function, the process may include loading third-party software of various kinds, such as kernel extensions (which modify the behavior of macOS at a low level) ...

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