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vishaltelangre/freeme

Created November 7, 2013 06:35
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Free up unused memory [ubuntu]
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freeme
#!/bin/bash
#
# Release memory used by the Linux kernel on caches.
free -m
sudo sysctl -w vm.drop_caches=3
sleep 5
sync && echo 3 > sudo /proc/sys/vm/drop_caches
free -m
# 1 -> to free pagecache
# 2 -> to free dentries and inodes
# 3 -> to free pagecache, dentries and inodes
#
# Reference: http://www.commandlinefu.com/commands/view/2888/release-memory-used-by-the-linux-kernel-on-caches
#
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