Swap
Clear swap file
1 - Disable Swap
sudo swapoff -a2 - Re-enable swap
sudo swapon -aView Swap usage
sudo smem -rs swap
Swap config
Update swappiness config
sudo bash -c "echo 'vm.swappiness = 1' >> /etc/sysctl.conf"Update value immediately
sysctl vm.swappiness=1
About swap
Swappiness in Linux is a kernel parameter that controls how aggressively the system moves inactive pages from RAM to the swap space on disk. The swappiness value is represented as a percentage from 0 to 100, and it affects the balance between using physical RAM and swap space. Lowering swappiness can help improve performance in certain scenarios, particularly when you have a decent amount of physical memory available.
How Swappiness Works
Low swappiness values (0–30): The kernel avoids swapping as much as possible and will only swap when RAM is close to being fully utilized. This setting is ideal when performance is prioritized and there’s enough RAM.
High swappiness values (60–100): The kernel uses swap space more aggressively, even when RAM is available. This setting can be helpful on systems with limited RAM or on systems running many applications simultaneously.
The default value for swappiness on most Linux systems is 60.
How Swappiness Works
Low swappiness values (0–30): The kernel avoids swapping as much as possible and will only swap when RAM is close to being fully utilized. This setting is ideal when performance is prioritized and there’s enough RAM.
High swappiness values (60–100): The kernel uses swap space more aggressively, even when RAM is available. This setting can be helpful on systems with limited RAM or on systems running many applications simultaneously.
The default value for swappiness on most Linux systems is 60.