There's been a lot of posts about memory in OSX. None have really documented what the screen below speaks to. Especially the difference between private memory, and virtual private memory. Also does port represent just network ports, or does it include open file handles on that screen? The link right here What's the difference between Real, Virtual, Shared, and Private Memory? is not the same question. They're speaking of a different screen in OSX, which makes different measurements. The screen I'm referring to in the image below is per process, not per system. I would greatly appreciate if any one can provide information to what memory statistics in the image below represent, and what ports details.