Important Notes: The release of Minecraft 1.3 introduced built in auto-save functionality that is completely new to Minecraft: prior to this release, server admins had to provide their own means to save things on their server at a set interval. As a result, the vast majority of servers already have an auto-saving mechanism of some sort, rendering the newly provided built in auto-save largely redundant. On top of this, it was also immediately noticeable that the built in auto-save was the cause of a significant performance hit to the server, even going so far as to lock up the server each time it ran. Bearing this in mind, we decided the best course of action was to make the auto-save interval configurable and default to being disabled. By doing so we immediately saw a noticeable performance increase on servers and noticed overwhelmingly positive feedback on our Beta builds. While some might argue that this could leave servers without frequent saving, this change simply reverts behaviour back to what server admins are familiar with from Minecraft 1.2.5. As mentioned before, we have made the auto-save interval configurable and disableable within the bukkit.yml. Simply set "ticks-per.autosave" to the number of ticks you want between each save or set it to 0 to disable it completely and use a script or plugin to manage it instead. For future reference, the Minecraft default for this value is 900.
CraftBukkit.vol1.egg