Our clan runs 4 servers 3 of which (CS1.6,CS1.6, NS3 combat) all have tiny memory leaks. Like after a week of being up they'll be using 4 times the memory. But the NS3 Classic server is using double the memory in 30 minutes! After one day it uses 3Gb of memory. Thankfully we have way over the top amounts of memory (6Gb).
Anyway I'm going to spend the day removing plugins and trying to find which one is the main culprit. If anyone else is experiencing them and can help me narrow down the problem, please speak up.