Should I disable swap Ubuntu? Although it protects Linux system from getting out of memory, in certain cases it is recommended to disable swap. For example swap should be disabled on Kubernetes nodes, on database servers where I/O performance is critical and on SSD drives to increase their lifespan.
How do I permanently disable swap in Ubuntu?
- Run swapoff -a: this will immediately disable the swap.
- Remove any swap entry from /etc/fstab.
- Get the system rebooted. Ok, if the swap is gone.
- Repeat steps 1 and 2 and, after that, use fdisk or parted to delete the (now unused) swap partition.
How do I turn off swap file?
- At a shell prompt as root, execute the following command to disable the swap file (where /swapfile is the swap file): # swapoff -v /swapfile.
- Remove its entry from the /etc/fstab file.
- Remove the actual file: # rm /swapfile.
Should I disable swap? So, one might ask, since I have more than enough memory available, wouldn’t it better to delete swap space? The short answer is, No. There are performance benefits when swap space is enabled, even when you have more than enough ram.