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If you are running a webserver, Database, or plex server you might find that your memory is at 90%+ all the time. Here is how to clear it up. 1. create a file at /usr/local/bin. I am calling it free-memory but you can call the file what ever you want. sudo nano /usr/local/bin/free-memory 3. add the command then save and close. free -h && sudo sysctl -w vm.drop_caches=3 && sudo sync && echo 3 | sudo tee /proc/sys/vm/drop_caches && free -h 2. change the permissions of the script. sudo chmod 555 free-memory 4. Creating a cron job. sudo contrab -e 5. I want to run mine every minute. Change this to your needs. * * * * * /usr/local/bin/free-memory 6. check your server after a minute. you should see your memory usage change.
