
Modrinth · Minecraft modpack
Multi-Threading
🦾 Experimental server optimization modpack
Quick answer
Which Multi-Threading release should I use?
Multi-Threading 1.21.10-1.1 is a complete pack release for 1.21.10 with Fabric 0.17.3. Install it as its own launcher instance. If the creator publishes a separate server file, make sure it names this exact pack release. 12 mods in this pack file.
Pack setup
How should I set up Multi-Threading for players and a server?
Use Multi-Threading 1.21.10-1.1 as the pack version. Install the pack as its own launcher instance. The creator’s listing does not name a separate server file, so check the release notes before setting up a dedicated server. Do not upload the ordinary client folder blindly.
A pack is a matched client and server setup, not one mod with an install-side label. Keep its release, loader, manifest and overrides together.
These numbers come from the pack file you chose. “Not labelled” means we don’t know which side it belongs on—not that it is safe everywhere. The file count is not a RAM estimate.
What are the server requirements for Multi-Threading?
Multi-Threading 1.21.10-1.1. Change the pack release and its contents or setup may change too.
The selected pack release is Multi-Threading 1.21.10-1.1. That file is for Minecraft 1.21.10 with Fabric 0.17.3. It contains 12 mod projects. The creator’s listing does not name a separate server file. Check their notes before using one, and do not upload an ordinary client folder or rebuild the pack mod by mod. A file count cannot tell us the right RAM, CPU or storage; size the server for the players and world you actually run.
About this project
What kind of pack is Multi-Threading?

🦾 Multi-Threading
This is a highly experimental modpack based on Server Optimization, but it is extremely efficient thanks to multithreaded entity processing.
Once again, this is a highly experimental modpack; you should expect everything to break. Make backups.
✨ Features
- Multithreaded Entity Processing(Async mod)
- All the Benefits of Server Optimization
💽 Installation
- Convert the .mrpack to .zip using the Modrinth Pack to Zip Converter
🧩Java and Flags
- Use Java Eclipse Temurin 25 with the following flags:
-XX:+UseZGC -XX:+UseCompactObjectHeaders - For more details, read the article
🗺️ Chunk Pregeneration:
To prevent lag caused by players generating chunks, it’s recommended to pre-generate them. Use the Chunky mod for this task.
You can estimate the size of your future world on this website.
Steps:
- Select the world where you want to pre-generate chunks:
Example:
/chunky world minecraft:overworld - Set the radius:
Example:
/chunky radius 5000 - Start the chunk pregeneration process:
/chunky start
Project description from Modrinth.
Mods in Multi-Threading 1.21.10-1.1
Open any mod on Modpacks.ch to check its files and dependencies.
b7f63768ac688ecb423865c688a6efdaaff205a8 · Modrinth version FY6xclLZ · Project link unavailable Server only2817a23e3091ba84916ce95b073907416355ca09 · Modrinth version jW2W1uoQ · Project link unavailable Server onlydbe0d68c88ad4a9c76f9892047258766ef12b294 · Modrinth version 2EKX8Hiv · Project link unavailable Side not labelledde52d424bdbd4d68e06b79306e0a1199db2a7b03 · Modrinth version kkEljQ4R · Project link unavailable Side not labelled666a30970020ff45f90cd7c96781e62ca99193ae · Modrinth version dQ3p80zK · Project link unavailable Side not labelled5ea50634ed19a5e10acb46258bab0c1ee20f64ca · Modrinth version MGoveONm · Project link unavailable Side not labelled7d44f5da9c690bbf1bd6d65c1acc81db5cf7f8c6 · Modrinth version NsswKiwi · Project link unavailable Side not labelled9df93ab6442fa374c17fab6b5181fe2c215d9d5b · Modrinth version PV9KcrYQ · Project link unavailable Side not labelled6a732327f7855aa64f820942031d6e4adeba68a6 · Modrinth version TTQGy6U8 · Project link unavailable Server only85ae54dace1d468d8cbcfac88bb7c31ff7852530 · Modrinth version eqIoLvsF · Project link unavailable Side not labelled6f862c5300ddb7980c3771e784b9cdb1b60c0a46 · Modrinth version Htc1MpMN · Project link unavailable Server only18d4b43bf68a3ebaa4e6d01d0781f63c20e81d58 · Modrinth version nCucW7Sl · Project link unavailable Side not labelledPick your setup
Multi-Threading by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.8
1 loader build1.21.7
1 loader build1.21.6
1 loader build1.21.5
1 loader build1.21.4
1 loader build1.21.3
1 loader build1.21.1
1 loader buildMade local changes? Try them in a copied instance before touching a world you care about.
Recent files
Multi-Threading versions and loaders
Looking for an older file? The official Modrinth project page is in Resources.