Help, terrible lags

i use mcmyadmin, and when i updated server to 1.1, lags are terrible, cpu goes to 0% when it happens and it's like 5 seconds and back on normal usage, why this happen ?, tryed updated plugin and i thought maybe world is corrupted, tryed with chunkster and mcedit, no errors, and in logs there are no errors, just cpu goes to 0% usage (lag) 5 sec and goes back on normal usage (no lag), happen every few mins

help, have lastest dev build of bukkit

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

Can you post your startup log and a log of when this happens?

 

like i said, there is no errors of it, it just goes to 0% cpu and comes back, terrible lag.
http://pastebin.com/9Faef7SZ

 

Try removing all your plugins and then re-adding them 1 by 1, then you can pinpoint if it is a plugin causing it.

 

i disabled all plugins, and same thing happen.

 

Try updating craftbukkit

 

Why are you running in offline mode by the way ?