Hello Geeks .. This article applies for most of Linux Distributions and SphinUX OS . I tested it on ( Ubuntu , Kali , BackTrack 5 , Redhat ) but my screenshots are from SphinUX OS . What is Swap Memory ? Swap memory is that drive you create while installing your OS or through your command shell to tell the operating system that when physical memory (RAM) start to get more traffic , it shall start transfer some of the data to the swap file or swap disk .( the transfer process have it's own algorithm i will not get into explaining it ) .