UPDATE: Check out this post for an excellent guide: http://forums.bukkit.org/threads/3967/page-2#post-184208 After the server has been running for a few hours with 26+ people online the cpu usage goes 100% core usage (8 HT cores) and instead of slowly gaining in ram usage until all 16gb set to craftbukkit is used, it hovers around 4gb of usage out of 16gb set to the process. I have the 500mb world folder on a 3gb tmpfs (ramdrive) mount and I'm running mcmyadmin with the -server flag. I could upload a video... but people will move fluidly for 3 seconds, then it pauses for 3 seconds, then the person warps to where they were walking and it's smooth for 3 seconds..... the process repeats. When looking at cpu usage. It goes from 60% to 100% over and over again. I'm wondering how we can lower the cpu usage and use up more of the 16gb of ram to increase performance... The main thing I'm looking for is a smoothing of gameplay... There seem to be a lot of threads for the minecraft server process. Below is a copy from my server advertisement that gives some of the server's info from http://www.planetminecraft.com/serv...elistedbukkitantigriefdozen-plugins24gb-ddr3/ --- merged: Feb 11, 2011 12:30 AM --- I found one thing that lowered performance significantly.... McMyAdmin. McMyAdmin was great when I was running a vanilla server, added commands and backups and banners... but it doesn't properly support bukkit yet. I hear that after bukkit is released officially McMyAdmin is supposed to support it fully with such functionality as adding addons from the web interface. So now I'm looking for a dynamic banner that at least shows how many people are playing on the server. Wish me luck. PS: With mcmyadmin the server would shudder every two seconds, now it's running smoothly so far.