1.21 Server Optimizations

Memory usage optimizations

No-compromises game logic optimization mod. Well suited for clients and servers of all kinds. Now available for Fabric and NeoForge!

All-in-one mod that improves performance, reduces memory usage, and fixes many bugs. Compatible with all your favorite performance mods!

A mod that fixes random memory leaks for both the client and server

Optimises worldgen performance for a better gameplay experience.

An efficient and non-locational redstone dust implementation

A mod that aims to optimize the minecraft server.

Improve Minecraft CPU scheduling

A significantly faster Random Generator implementation for Minecraft, with near vanilla parity.

Changes the searching of features to be asynchronous to mitigate associated lag

This little mod rewrites one function of the advancements logic to make advancements checking faster, and use less recursion. It should prevent StackOverflowErrors with advancements.

Redirect Enum#values() allocation in codes and improve game performance.

The carpet extension to fix all vanilla minecraft bugs

A simple mod that makes powered/activator rails turn on/off up to 4x faster. Fix vital crash.

Advancements optimization (specifically, InventoryChangeTrigger)

This simple mod brings the bugfix for "Player moved too quickly!" from RandomPatches to a standalone mod. It removes the server side check for if a player moves too far too quickly which then teleports them back.

A Forge mod designed to improve server performance at high playercounts.

A hacky fix for server lag spikes when generating shipwreck buried treasure map / explorer map loot.

Crafting table optimisations.

Let tater optimize your game!

An attempt to optimize the fabric server, by assigning each dimension their own thread.