I have recently aquired a dedicated server running CentOS and Plesk for my applications.
These scripts were running on a 1.5GB ram VPS running CentOS and CPanel and worked very well.
Now they are on the new dedicated server the memory has gone down from 14.1 GB ram spare to 9.9GB. I can't see it being my scripts so presume there is something else using all my memory. How can I see what is eating all the resources?
Note: The only difference between these servers (from my point of view) is my crons were being checked every 5 minutes on the old server whereas now they are checked every minute and there are about 60 of them.
This is the information from "free" via SSH - Although, I am not entirely sure what its telling me:
[root@h31-3-244-194 ~]# free total used free shared buffers cached Mem: 16426796 9373260 7053536 0 390468 3471680 -/+ buffers/cache: 5511112 10915684 Swap: 18481144 0 18481144
EDIT: I have looked against all my cron processes and they have this: bin/qmail-queue against them. Could qmail be eating the memory?
If I have omitted some required information, please let me know.