Hello to everyone, Recently added my self to the Mac world as i currently own a Retina MacBook Pro 13inch with 16GB of Ram. Well, i do know basic staff for controlling and overall handling my computer but i need an optimiazation guide. Still i did not upgrade to Yosemite yet since i want the Mavericks for learning and experimenting. I will do a clean install of the Yosemite, probably next week. So, i was thinking about my 16GB's of Ram and the swap file. Is it a good idea to move the swap file into the Ram, or may I just unload the pager deacon once and for all? Also, to use or not to use antivirus? I am Kaspersky user for many years in my PC and i have no complain at all.. Doing my research, i discoverd this guide and decided to go with the following on my machine: Turn off local Time Machine snapshots (well, i've doing the same thing in my pc since my data is always in another hd and i always have an image of a fresh install - the worst case senario here is to re-install the os but wthout the fear of loosing data) Turn off hibernation (also doing this on my pc but i do not really know how it works on os x) Set noatime flag (i did not understand it completely this..) Turn off sudden motion sensor (it seems logical to me.. eh?) Turn off hard drive sleep (the same as above..) Misc Tweaks: disable waking up when lid opens Well, what is your opinion on all the above stuff? Since the thread I found was a little bit old, are there any other, updated info out there for optimizing my Macbook's Pro performance?