Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Mac OS X 10.6

When multiple users logon and launch some applications at the same time, say Photoshop or Adobe Creative Suite 5. Will Mac OS utilize memory smart enough by letting both instance of applications using same chunk of memory? Thanks.

share|improve this question
You mean utilize memory dumb enough. It's not smart to let users share memory. – Josh K Aug 2 '10 at 0:52
up vote 2 down vote accepted

In general, no. When two different users launch a program, they must run as two different processes owned by the individual users. To share memory between these two instances could easily become a security breach as one user could change the memory being used by another user.

In theory the superuser could get around this, but apps must be written not to assume superuser privileges unless there's an explicit need for them.

share|improve this answer

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .