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TooBee Optimization

Game optimization mod that focuses on calculation reduction of stacking mobs, despawn condition of monsters and so on

Fabric
Loaders
Fabric
Downloads on Modrinth
14.8K
Followers on Modrinth
6
versions
3
Updated
October 14, 2026Oct 14
Published
in 2025

At a glance

Runs on Fabric
For Minecraft 1.21.10–1.21.11, 26.1.2
Server only — players don't need to install it
Latest version — 0.1.2 from October 14, 2026
Requires Lithium
License GPL-3.0-or-later — free
Where it's needed
In gamenot neededOn serverrequired

Install on the server only; players don't need it

Game versions1.21.10–1.21.11, 26.1.2

This project is a public minecraft optimization mod for TooBee survival server, including a variety of aspects where each one is designed for a specific occasion.

Server IP: 2ob.top

The mod is at a very early stage of development, and please notice that it is dedicated server only.

Support for the newest minecraft version is updated if and only if TooBee server updates, and yet older version of minecraft is not supported.

For more detailed information, please read README.md in GitHub repo of this project.

What has been done

Most modifications are ensured to be thread safe.

Mob Stacking Optimization

Cache some of the calculation results of vast amount of certain entities stacking in a single position. I try to optimize the time complexity of such calculation from O(n^2 * log n) to O(n) , which means the MSPT caused by 3000 wardens can be reduced from more than 700 to less than 15. However, notice that this mod is server only, so it should be no use on client side. These mobs are recommended to

  • be the same type;
  • stack in the same dimension and block pos;
  • stand on a solid block steadily;
  • have limited mobility;
  • with climbable block in the position of their feet so that they don't crush.

Affected Mob

  • Warden: usually for pseudo-peace farm in server.
  • Piglin: usually for bartering farm.

Principle and Attention

Cache the calculation results of such mobs every tick: One mob experiences a full calculation process and its result will be cached, while others stacking in the same position share it. In this way, original behaviour of mobs stacking in one block are slightly affected, but not so much and most people don't care about it, as hardly any players interact with these thousands of entities.

More reasonable despawn condition

If mobs pickup items, they keep alive permanently unless killed. However, those mobs are not counted into spawn cap, making their population grows endlessly and finally causes huge lags. While a hostile mob (except for enderman) holds the following common items without any components, it will still despawn:

arrow, bone, brown mushroom, cobbled deepslate, cobblestone, dirt, egg, grass block, gravel, gunpowder, pointed dripstone, red mushroom, rotten flesh, spider eye, string, torch, wheat seeds.

Enderman holding the following items will also despawn:

brown mushroom, crimson fungus, crimson nylium, crimson roots, dirt, grass block, gravel, red mushroom, sand, warped fungus, warped nylium, warped roots.

FAQ

How to install TooBee Optimization?

Install Fabric for your Minecraft version, download TooBee Optimization for the same version and loader, put the file into the mods folder and launch the game with the loader profile.

Which Minecraft versions does TooBee Optimization support?

TooBee Optimization has builds for Minecraft 1.21.10–1.21.11, 26.1.2.

Is TooBee Optimization needed on the server?

Server only — players don't need to install it

License and source
GNU General Public License v3.0 or laterfree to use and share; changes to the mod itself must be published under the same license
Original — Modrinth↗Files unchanged, verified with SHA-512Is this your mod? For rights holders

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