Add Memory Swap
If you’re trying to improve your server’s performance, adding swap space (or memory swap) is a powerful and relatively simply place to start.
There are several ways to add memory swap, depending on which version of Linux you are using.
|Ubuntu and Debian 7||(Add Memory Swap – Ubuntu or Debian 7)|
|CentOS||(Add Memory Swap – CentOS)|
|Arch Linux||(Add Memory Swap – Arch Linux)|