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Empty swap. Clear swap. Move swap to RAM. Ubuntu.
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#!/bin/bash | |
function echo_mem_stat () { | |
mem_total="$(free | grep 'Mem:' | awk '{print $2}')" | |
free_mem="$(free | grep 'Mem:' | awk '{print $7}')" | |
mem_percentage=$(($free_mem * 100 / $mem_total)) | |
swap_total="$(free | grep 'Swap:' | awk '{print $2}')" | |
used_swap="$(free | grep 'Swap:' | awk '{print $3}')" | |
swap_percentage=$(($used_swap * 100 / $swap_total)) | |
echo -e "Free memory:\t$((free_mem / 1024))/$((mem_total / 1024)) MB\t($mem_percentage%)" | |
echo -e "Used swap:\t$((used_swap / 1024))/$((swap_total / 1024)) MB\t($swap_percentage%)" | |
} | |
echo "Testing..." | |
echo_mem_stat | |
if [[ $used_swap -eq 0 ]]; then | |
echo "No swap is in use." | |
elif [[ $used_swap -lt $free_mem ]]; then | |
echo "Freeing swap..." | |
swapoff -a | |
swapon -a | |
echo_mem_stat | |
else | |
echo "Not enough free memory. Exiting." | |
exit 1 | |
fi |
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