[LearnAdmin] How to drop cache or in-memory cache on linux and free up some memory ?

[Naresh Surampudi]

$ echo 1 | sudo tee /proc/sys/vm/drop_caches  # drop pagecache
$ echo 2 | sudo tee /proc/sys/vm/drop_caches  # drop dentries and inodes
$ echo 3 | sudo tee /proc/sys/vm/drop_caches  # drop pagecache, dentries and inod

Also we can use 

echo 1 > /proc/sys/vm/drop_caches

echo 2 > /proc/sys/vm/drop_caches

echo 3 > /proc/sys/vm/drop_caches

This is also used when we take benchmarks of server.

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Posted By Naresh Surampudi to LearnAdmin at 8/05/2013 07:27:00 PM