Create a swap file to let OS use when the physical memory is not big enough. Make the swap file as 1~2x big as your physical memory.
How much swap size do you need
Based on your physical memory size, here is a chart you can use:
- 1G -> 2G
- 4G -> 6G
- 6G -> 8G
- 8G -> 11G
- 16G -> 20G
- 32G -> 38G
Create swap file
#!/usr/bin/env bash fallocate -l 12G /swapfile chmod 600 /swapfile mkswap /swapfile swapon /swapfile echo "/swapfile swap swap defaults 0 0" >> /etc/fstab
swapon --show to check current swaps.
If your system already configured other swaps, you can use
swapoff to remove it, for example:
Also remember to remove it in the
/etc/fstab file such that it won't get used when system rebooted next time.
Top comments (1)
We can also use the
partedcommand to create the swap partition.
Here are examples to do that: