The Code City's video: How to Create SWAP File in Ubuntu18 04 - Live Process

Memory management is an essential aspect of every System Administrator to improve the performance of a Linux system. It is always a good practice to monitor swap space usage in Linux to ensure that your system operates relative to its memory demands. Swap space is a restricted amount of physical memory that is allocated for use by the operating system when available memory has been fully utilized. It is memory management that involves swapping sections of memory to and from physical storage. Commands Used: 1. sudo swapon --all 2. sudo fallocate -l 1G /swapfile 3. sudo mkswap /swapfile 4. sudo swapon /swapfile You can check the full details tutorial on how to create swap files and configure swappiness here: https://www.thecodecity.com/2020/04/how-to-create-swap-file-in-ubuntu-1804.html