Where did all of that come from? It's fantasy as far as I can tell. I have never... | Hacker News

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		seiji on Aug 2, 2012 \| parent \| context \| favorite \| on: Mountain Lion seems to have addressed the memory m... Where did all of that come from? It's fantasy as far as I can tell. I have never heard "Page-outs refer to a file-backed page being committed to disk." I think you are confusing it with a file cache or buffer cache commit interval. A page out is when a page of memory is written to disk ("paged out") so you can use more live memory than you have physical RAM. Fun fact: the kernel is smart enough to not page out the page in code.

otterley on Aug 2, 2012 [–]

> I think you are confusing it with a file cache or buffer cache commit interval.

That's a distinction without a difference - the file/buffer cache stores memory pages. They are simply file-backed pages.

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