How to set swap priority?

To set the swap priority in Linux, you can use the swapon command with the -p option. The priority determines the order in which swap spaces are used; lower numbers indicate higher priority.

Steps to Set Swap Priority:

1. Identify Swap Devices: First, check your current swap devices using:

   swapon --show
   

2. Turn Off Swap: If you need to change the priority of an active swap device, turn it off:

   sudo swapoff /dev/sdX
   

   Replace /dev/sdX with your swap device.

3. Set Swap Priority: Use the swapon command to set the priority:

   sudo swapon -p <priority> /dev/sdX
   

   Replace <priority> with the desired priority value and /dev/sdX with your swap device.

4. Verify Changes: Check the swap priorities again:

   swapon --show
   

Example:

To set the priority of /dev/sda2 to 10:

sudo swapoff /dev/sda2
sudo swapon -p 10 /dev/sda2

Feel free to ask if you need more information!