You can also display these windows by selecting the same menu items in the Dock, Control-clicking or right-clicking the Activity Monitor icon, and then going to the Monitors submenu. The Window menu has three additional menu items that can display CPU History, CPU Usage, and GPU History graphs in separate floating windows: You can also display a live Dock icon, change refresh rate, filter by process type, and clear CPU history from the View menu. There are many more columns available to view than the default columns, and you can turn them on and off by selecting them from the View->Columns submenu. If you click the Sample/Diagnostic pop-up menu button at the top of the Activity Monitor window and select Spindump, the application will generate a report similar to the Sample button in the Get Info windows, but for all processes running on your Mac: See “man top” in the Terminal for more information on how to use top:Īt the bottom of the activity monitor window is a small graph showing system load, user process load, idle percentage, and the total number of running threads and processes. You can also view most of this same information in the Terminal by typing: The Statistics panel also displays the number of memory swaps, Mach system calls (Mach is the kernel of macOS), and UNIX system calls. The Statistics tab displays the number of threads, ports, CPU time, content switches, failures, and assertions (errors).
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