Problem with block lag ?

[darkhood88]

Hey guys we just setted up a server after some months, we installed the new version of tekkit. (3gb assinged to tekkit)

Problem is when we log in, we can place blocks without lag and walk around no problem. Only when we see mobs or break blocks we get massive lag. Doesnt seem to be a memory/cpu problem of the server because they are not even over 50%. (Only 3 players on it)

It is a new server/world etc so no machines yet.

** Tried on a localhost with only 256mb and it works perfect, so i dont know..**

For those who ask server info;

A VPS with two cores of a Intel Xeon and 4 GB RAM. Debian 7 with Oracle Java 7 installed and run the server that I found on the Tekkit website main page. I started the server by the following command:

Code:

java -Xmx3G -Xms2G -XX:+UseConcMarkSweepGC \

-XX:+CMSIncrementalPacing -XX:ParallelGCThreads=2 -XX:+AggressiveOpts \

-jar Tekkit.jar nogui