http://prntscr.com/2gi5oe

Although my site currently doesn't have any visitors memory is 100% used with cache taking a big part...

Before my site was active, in random occasion cache would jump from 10% to 50% when I had no visitors at all.

EDIT:

Sovled -> http://www.linuxatemyram.com/


I guess I need to find another way is my sever OOMING.

Look at the "free -m" output and look at the "-/+ buffers/cache" line. If the free column is close to zero then you're running out of memory.

Look at "vmstat" output at the "si" and "so" values (NOT the first line; you need to do something like "vmstat 5 2" and look at the last line) to see if actual swapping is occuring.

On your graph, look to see if the "buffers" gets small or if the "swap" line grows.

_________________
Rgds
Stephen
(Linux user since kernel version 0.11)