Concurrent Chunk Management Engine

A Fabric/NeoForge mod that significantly improves chunk performance in Minecraft by optimizing their generation, loading, and input/output operations.

How does C2ME work?

The main idea of the mod is parallel processing of chunks using all available processor cores. This allows distributing computational load and achieving significant acceleration in world operations.

Compatibility with vanilla gameplay

C2ME fully preserves standard Minecraft behavior and does not make changes to world generation mechanics. However, it's worth considering that due to vanilla generation features described in bug report MC-55596, worlds may differ even when using the same seed.

Working with other mods and datapacks

The mod is fully compatible with world generation datapacks that work in the standard version of the game. Mods with their own world generators mostly function correctly, but problems may arise due to specific optimizations.

Mod operation control

C2ME includes the CheckedThreadLocalRandom system for controlling random numbers in world generation (also present in UWRAD), which prevents potential conflicts and errors.

Usage recommendations

Always create world backups before installing the mod and follow standard modding practices.

Supported Minecraft versions

Full support is provided only for the latest stable version of the game and the latest snapshot. Older releases receive only critical bug fixes.

Performance comparison tests for version 1.21.3 (November 2024)

2t-80t	1t-10t

Additional information

Detailed description of the mod's operation is available in README.md: https://github.com/RelativityMC/C2ME-fabric

Benchmark notes

Details of benchmark execution: https://gist.github.com/ishland/9601a033afad4be5b17ffaed859577fd