Minecraft - v1.8 High CPU & Memory - Workaround
Sep 19 2011 20:53:13 by Killing
We've seen quite a few tickets from customers who are seeing high CPU and memory issues since the release of v1.8 "The Adventure Update".
After some investigation it does seem that the v1.8 is quite a bit more memory hungry than previous releases, so is causing some issues. More on this in a future post when we looked more into this particular issues.
In addition to this we're seeing high CPU where we wouldn't usually. This seems to be particularly the case for worlds with large bodies of water with animals enabled.
This has been seen before and the cause was large numbers of squid. Currently the workaround seems to be remove all mobs and then to disable animals and monsters.
To do this you need to:-
- Backup your world
- Download your world and use a tool such asSingle Player Commands to killall mobs (ensure difficulty is set to peaceful first)
- Upload the edited world
- Restore the uploaded world
- Set the following settings in server.properties and restart your server
spawn-animals=false
spawn-monsters=false
difficulty=0
We hope the never version will fix these performance issues in the server code but in the mean time doing the above seems to really help based on our testing.