"Although swap acts as an extension of system memory, there are
several purposes swap space can serve within that descriptor.
"In the classic scenario, swap space could be considered a
last-resort for data before an application - or the entire system -
crashes. How does it work? Let's pretend you have 1000MB of RAM, of
which 800 is used. You now load a program that consumes 300MB of
memory. In this simplistic scenario there is more data than memory
available; therefore, approximately 100MB will be moved into swap.
Is this inherently bad? It isn't ideal, but typical far better than
having the system grind to an uncontrollable halt and forcing a