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How to Clear Memory Cache on Linux

Jul 03, 2013, 14:00 (10 Talkback[s])
(Other stories by Anonymous)

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By default, every Linux OS has an efficient memory management system used to clear the buffer cache periodically. You can manually free up the memory cache with the following simple command:

sk@sk:~$ sudo sh -c "sync; echo 3 > /proc/sys/vm/drop_caches"

However, if you want to force the Linux OS to do clearing memory cache on a particular interval, just add the command to cron job. Here, I show you how.

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