On Sat, Oct 10, 2009 at 10:48 AM, jon <trambl...@mac.com> wrote: > I could use an explanation then, if you go into "activity monitor" you > will see a heading of "real memory" and "virtual memory"..... specifically > for all the current "Processes".. > > what does Apple mean by "real memory"? in that, I might see why you > asked the question? and why you think that i am using it incorrectly for > my particular "process"... i can see Apple label my process ashas bee using > "real memory"? and "virtual memory" what does apple mean?
http://support.apple.com/kb/HT1342 http://support.apple.com/kb/TA20517 In a nutshell.. Real Memory is essentially how much physical RAM is currently being used by the process. It doesn't count swapped out pages. Virtual Memory is how much of the processes virtual memory space has been "consumed" by allocations. Note just because an allocation was made in the virtual memory space doesn't mean that any physical RAM or on disk swap has been yet used. In fact pages related to the allocation may never be touched by the process, hence never cause a page fault requiring the mapping of physical/disk page. -Shawn _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
