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On Mac OS X how can I see how much memory is being used by what programs?

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related: superuser.com/questions/43157/… –  Cawas Apr 13 '11 at 15:57

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up vote 14 down vote accepted

You can use the Activity Monitor application. It is located in /Applications/Utilities/Activity Monitor.app. And here is a screenshot with the columns for memory usage highlighted:Activity Monitor Screenshot

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+1 - short, sweet, and correct. Including a screenshot might enhance your answer though! –  nhinkle Jan 28 '11 at 5:59
    
@nhinkle: Added the screenshot. Thanks for the suggestion! –  Wuffers Jan 28 '11 at 13:43
    
Thanks for suggesting to add the 'Virtual Mem' column. Could you add a short explanation of the differences between the two? –  benregn Jul 30 '13 at 14:48

MacOS is a UNIX. Thus, it has lots of standard unix tools, in your case, the top program, which you can execute in a terminal.

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