Ubuntu Swap Disable

2021-06-04 200 words One minute

Contents

What is Swap in Computer?

SWAP

To replace pages or segments of data in memory.
Swapping is a useful technique that enables a computer to execute programs and manipulate data files larger than main memory.
More detail go to here

Show Swap

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free

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              total        used        free      shared  buff/cache   available
Mem:        2035240      683076      448960        1900      903204     1195404
Swap:             0           0           0

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sudo swapon -show

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Filename				Type		Size	Used	Priority
/swap.img                              	file    	1794044	0	-2

Present Disable

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sudo swapoff -a

Permanent Disable

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sudo vi /etc/fstab

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# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/ubuntu-vg/ubuntu-lv during curtin installation
/dev/disk/by-id/dm-uuid-LVM-9P6wxgVviPOldHd8McXwnECNFYGbJQXIcJX3JQbySwOeEHhF09z1mRNWyWSVb8jb / ext4 defaults 0 0
# /boot was on /dev/sda2 during curtin installation
/dev/disk/by-uuid/5afd959f-a436-4e5e-8ae5-456f52e6cffe /boot ext4 defaults 0 0
# Below change to comment!!
#/swap.img      none    swap    sw      0       0