OK, so, a few weeks - months ago, some people where having extreme CPU usage problems, I myself did, and could only solve it by reseting my map. By that time a huge topic was created with many people with the same problem, but nobody could really solve it. Now it seems that the problem returned. Many people are reporting that last recomended build of craftbukkit has this issue -and im talking about the recomended one not the 1.6-. This thread is to unite everybody that has this probles, and to be easyer for the devs to find what is happening. The original old thread: http://forums.bukkit.org/threads/high-cpu-usage.8295/ The reports of people having the exactly same problem now: http://forums.bukkit.org/threads/cpu-at-over-100-lag-spikes-galore.18862/ http://forums.bukkit.org/threads/problem-cpu-loaded.18807/#post-330921 http://forums.bukkit.org/threads/extremely-high-cpu-usage.18818/ http://forums.bukkit.org/threads/craftbukkit-798-803-high-cpu.18431/ http://forums.bukkit.org/threads/terrible-resource-usage-in-803-798.18484/ http://forums.bukkit.org/threads/cpu-usage-through-the-roof.17531/ Something appears to be wrong with RB 803. Please if you have this same problem, post your specs here, how you run your craftbukkit, the size of your map, plugins, etc.