In what situations is it recommended to use the swap command in Linux?

The swap team in Linux is used to manage the swap space — a special partition or file on the disk that the system uses as an extension of RAM. It is recommended to use swap in the following situations:

• When there is not enough RAM for current tasks, and it is necessary to prevent processes from crashing.
• To support flexible system operation during peak loads when temporarily more memory is needed.
• On servers and workstations with limited RAM to increase overall available memory.

However, using swap is slower than RAM, so it is important not to rely on it constantly, but to use it as a reserve.

Example command to enable a swap file:

sudo fallocate -l 1G /swapfile
sudo chmod 600 /swapfile
sudo mkswap /swapfile
sudo swapon /swapfile

These commands create and activate a swap file of 1 GB size.