ModsFinder

SubChunker Companion

by qpcrummer

SubChunker Companion, a Fabric benchmarking helper for SubChunker, runs on the server alone and adds a tool for measuring chunk performance.

FabricServer-side onlyMIT LicenseOpen source1.14.4 – 1.21.11

What it does

SubChunker Companion is a server-side only utility mod for Fabric. Only the server needs it, and players can join without installing anything. It works as a companion to the SubChunker mod, adding a benchmarking tool that server owners can use to measure how chunk handling behaves on their world.

Fabric API is required and must be installed next to the mod. The mod is published for Fabric across 39 release versions, 1.14.4 – 1.21.11, and the latest file targets 1.21.11. The code is released under the MIT License and is open source, so the source code and issue tracker are public.

The author notes that the mod has been verified to work alongside several other mods, and that it fits with structure and chunk-related tooling used on modded servers. Layout optimization for structures is one area where it is meant to be combined with other tools rather than run alone.

Key features

  1. Benchmarking tool

    A built-in utility for measuring chunk handling performance on a running server.

  2. Structure evaluation

    Helps assess generated structures when used alongside structure layout optimization tools.

  3. Chunk behavior comparison

    Lets administrators compare how chunk handling behaves before and after changes to their setup.

Compatibility

Latest build for each game version and loader.

1.21.x12 of 12 versions with builds
1.21.111.0.0-modern
1.21.101.0.0-legacy
1.21.91.0.0-legacy
1.21.81.0.0-legacy
1.21.71.0.0-legacy
1.21.61.0.0-legacy
1.21.51.0.0-legacy
1.21.41.0.0-legacy
1.21.31.0.0-legacy
1.21.21.0.0-legacy
1.21.11.0.0-legacy
1.211.0.0-legacy
1.20.x7 of 7 versions with builds
1.19.x5 of 5 versions with builds
1.18.x3 of 3 versions with builds
1.17.x2 of 2 versions with builds
1.16.x6 of 6 versions with builds
1.15.x3 of 3 versions with builds
1.14.x1 of 1 version with builds
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Use cases

Server performance testing

Server owners can run the benchmarking tool to compare chunk handling before and after changes to their setup.

Modded server tuning

Administrators running several chunk and structure mods together can check that the combination behaves as expected.

Who it’s for: Server owners and administrators who run Fabric servers with SubChunker and want a way to measure chunk performance. Players who only join a server do not need the mod.

Questions

Does SubChunker Companion need to be installed on clients?

No. Server owners install it, and players connect with no copy of their own.

Which loader does SubChunker Companion use?

It is published for Fabric only, with Fabric API required. Forge and NeoForge files are not listed.

Which game versions are supported?

Files cover 1.14.4 – 1.21.11, and the latest Fabric file is 1.0.0-modern for 1.21.11, published 2025-12-31.

More from qpcrummer

All projects
Lifesteal Reimagined1.21.1

What the author says

The mod has been verified to be working with the following mods: - C2me (OpenCL and regular) - FerriteCore - Fabric API - Structure Layout Optimizer - Lithium - ScalableLux - ServerCore
qpcrummer, on the Modrinth page

Official listing

Owner
qpcrummer
Published
2025-12-31
Updated on Modrinth
2025-12-31
Facts verified
2026-10-15
Open on ModrinthCompare