This is starting to be a consistent error with my server. Bukkit is starting to sue up about 0-90% of the allocated RAM which is 1024MB. The issue has started to occur after I added stats/achievements and mcmmo. I have lowered the logging times for stats/achievements to 1 hour from 30s and I am not sure about mcmmo. I have tried my best to optimize these two plugins but I cannot do anything more. I am asking for anyone's opinion on this. I've attached couple of pics explaining my situation. Even with 2 people on the usage is at ~50% causing minor lag.