OT: cached memory

Dan Letkeman danletkeman at gmail.com
Wed Jun 13 17:50:20 UTC 2012


Just wondering if anyone has a real world example of how much cached
memory a server really needs?

If I run the command "free -m" it shows that it is using all of the
memory on the server and most of it is cached.  I understand the
concept and the reasoning, but what I would like to know is how much
is a reasonable amount to have?  I am assuming that if I gave this
server 10 times the amount it would eventually cache that as well.

                  total       used       free     shared    buffers     cached
Mem:          3017       2961         56          0        158       2434
-/+ buffers/cache:        368       2649
Swap:         5023          0       5023


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