A few days ago, my server started using a ton of CPU. It was around when I upgraded to build 803. My server with nobody in it uses 80% of the CPU, and when there is one player playing, it goes up to 95%-100%. I know it is not any of my plugins, as when I remove all of them it still is that laggy, and I know it isn't my Bukkit GUI 'Crafty' as I ran it without it and it still lagged. I'm running Windows 7 Home Premium, the architecture is x86, and my version of Java is 1.6.0_25. I am not running any wrappers and my build, as I have stated, is 803. The command to run Bukkit with Crafty is as follows: Code: @echo off set PATH=%PATH%;c:\Program Files (x86)\Java\jre6\bin start /b javaw -Xincgc -Xmx1G -jar crafty.jar Without the GUI it is like this: Code: @ECHO OFF SET BINDIR=%~dp0 CD /D "%BINDIR%" "%ProgramFiles(x86)%\Java\jre6\bin\java.exe" -Xincgc -Xmx1G -jar craftbukkit.jar PAUSE My plugins are as follows: Appleseed AuthMe BinaryBlood bukkitPiston DefaultCommands dontkickme EasyRules ecoCreature EggRenade GriefAlertR HeroicDeath iConomy LWC mcMMO NagaLightningCake obuJustShutTheHellUp OpenInv Permissions PortalStick Reporter runecraft2.6.1 Stargate ThunderTools Tombstone WorldEdit WorldGuard As I have said, I do not think any of these are causing problems as it is laggy without them running. I am not getting many warnings, but the most common warnings are Can't keep ups, Connection Resets, and Bad Packet IDs. What I have tried has already been listed. Any and all help is appreciated! tl;dr: My server uses too much CPU. It isn't my plugins. Pl0x help.