Swap in Linux

Had a swap space allocated but it was not mounted as so, and my computer had regular memory problems.

So what I did was,

• checked the swap partition first
• added the entry in /etc/fstab file as
• /dev/sda3 none swap sw 0 0
• sudo swapon -a
• checked by using cat /proc/swaps and it was found the following
• /dev/sda3 partition 1052248 423616 -1