Async - Minecraft Entity Multi-Threading Mod ⚙️
Async is a Fabric mod designed to improve entity performance by processing them in parallel using multiple CPU cores and threads.
Important❗
Async is currently in alpha testing and is experimental. Its use may lead to incorrect entity behavior and crashes.
What is Async? 🤔
Async is a Fabric mod that enhances the performance of entity processing. The mod leverages multithreading, which allows multiple CPU cores to improve performance when handling a large number of entities.
💡 Key Benefits:
- ⚡ Improved TPS: Maintains stable tick times even with a large number of entities.
- 🚀 Multithreading: Utilizes multiple CPU cores for parallel entity processing.
📊 Performance Comparison (9000 Villagers)
| Configuration | TPS | MSPT |
|---|---|---|
| Lithium + Async | 20 | 41.8 |
| Lithium (without Async) | 4.4 | 225.4 |
| Purpur | 5.72 | 176.18 |
🛠️ Test Configuration
- Processor: AMD Ryzen 9 7950X3D
- RAM: 64 GB (16 GB allocated to the server)
- Minecraft Version: 1.21.4
- Number of Entities: 9000
- Entity Type: Villagers
Mod List
Concurrent Chunk Management Engine, Fabric API, FerriteCore, Lithium, ScalableLux, ServerCore, StackDeobfuscator, TT20 (TPS Fixer), Tectonic, Very Many Players, Fabric Carpet.🔧 Commands
/async config toggle— Enables or disables the mod in-game (no server restart required). Use this command to instantly see how Async improves your server./async config setEntityMoveSync— Disables parallel processing of entity movement. Useful for preventing potential desynchronization with vanilla logic (disabled by default). Always enabled for items./async config synchronizedEntities add— Adds selected entity to synchronized processing./async config synchronizedEntities remove— Removes selected entity from synchronized processing./async stats— Displays the number of threads in use./async stats entity— Shows the number of entities processed by Async in various worlds.
📥 Download
The mod is available on Modrinth
🔄 Minecraft Version Support
Full support is provided only for the latest version of Minecraft. Older versions receive critical fixes only. Support for older Minecraft snapshots is not planned.
📭 Feedback
Our tracker for feedback and bug reports is available on GitHub:
You can also chat with us on Discord:
🙌 Acknowledgements
This mod is based on code from MCMTFabric, which in turn was based on JMT-MCMT. Huge thanks to Grider and jediminer543 for their invaluable contributions!
