I have the base 2.4GHz i5 15" model. I notice that even with 4GB worth of RAM, my machine does page in/page out in the million range. What can I do to control how much RAM each of my applications would eat up? What does "window server" process do, since i always see it eating up ~70MB of RAM? What about "mds", "mdswork", and "kernel_task"? "coreservicesd"? Can I quit these processes?? :confused Why does Safari hog up so much RAM always?