ECCF - Entity Chunk Cram Fix
The ECCF modification solves one specific problem in Minecraft - it limits the number of entities that can be present in a single chunk simultaneously. This is a configurable parameter that you can adjust according to your needs.
Especially useful for large modpacks with numerous mobs or for servers where administrators want to control the number of entities created by players. The mod prevents chunk overload, which positively affects game performance.