What is free, wired, active, and inactive system memory (RAM)?
February 17th, 2010 admin
Mac users: Have you ever wondered what all that system memory stuff in the Activity Monitor was all about? Understanding the terminology – free, wired, active, and inactive RAM – can help you decide if your Mac has enough memory. A quick peek at Mac OS X’s Activity Monitor to see how your system is performing can generate more questions than answers. The same thing goes for free Dashboard widgets like iStat Pro . That’s because the operating system categorizes system memory (commonly referred to as RAM) in a number of different ways, rather than just “used” and “free.” There’s a bit more going on behind the scenes, so we’re left to decipher the following terms: free, wired, active, inactive, page ins, page outs, etc. If you’ve ever wondered what…
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