There have been times where it has been necessary for me to clear out the swap space on a Linux system. In order to do this, you must first make sure that you have enough free memory to hold what is being used by swap.
I usually do this in a few steps.
# free -m
# swapoff -a
# swapon -a
# free -m
It’s done!
Happy learning 
ha ha … but kool
Terrific post but I was wanting to know if you could write a litte more on
this topic? I’d be very thankful if you could elaborate a little bit more. Thanks!