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Created November 13, 2023 10:33
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Setting swappiness on Debian

Swappiness controls the tendancy the kernel wishes to swap.

Even with free memory the kernel may swap.

100 means aggressively swap 0 means wait until the last minute to swap

To check current swappiness cat /proc/sys/vm/swappiness

To change it live sudo sysctl vm.swappiness=0

To change it after reboot sudo vim /etc/sysctl.conf

Change the value of vm.swappiness if it doesn't exist then add it to the bottom:

vm.swappiness=0

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