How to force the buffers/cached memory to release?

Subject: How to force the buffers/cached memory to release?
Author: Linux
In response to: How many memory my applications have used?
Posted on: 09/12/2012 07:57:26 PM

# echo 3 > /proc/sys/vm/drop_caches

Run free again:

# free -m
             total       used       free     shared    buffers     cached
Mem:           595         52        542          0          0          8
-/+ buffers/cache:         43        551
Swap:            0          0          0

>
> On 09/12/2012 07:56:52 PM Linux wrote:

That is F=59 (MB).
# free -m | grep 'buffers/cache' | tr -s ' ' | cut -d ' ' -f 3

References:

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