ModsFinder

Concurrent Chunk Management Engine (Fabric)

by ishland

Concurrent Chunk Management Engine, a Fabric optimization mod by ishland, targets the chunk loading and generation work the server performs in the background.

FabricServer required, client optionalMIT LicenseOpen source1.17.1 – 26.3

What it does

Chunk work is spread across parallel threads through two settings that the author lists as changed in the benchmark configuration: globalExecutorParallelism, set to the thread count, and worker-pool.worker-threads, also set to the thread count. Server owners tune these in the mod's configuration file, and the benchmarks published with the mod use a Terralith datapack on a fixed seed.

Key features

  1. Parallel global executor

    The global executor can run tasks on as many threads as the machine offers, rather than a smaller fixed pool.

  2. Configurable worker pool

    A worker pool handles chunk tasks, and its thread count can be set in the configuration file.

  3. Benchmarked setup

    The published benchmarks for 1.21.3 use a tmpfs world, an emptied world folder before each run and force-loaded existing chunks.

Compatibility

Latest build for each game version and loader.

26.x5 of 5 versions with builds
26.30.4.2-alpha.0.104+26.3
26.20.4.2-alpha.0.60+26.2
26.1.20.4.0-alpha.0.65+26.1.2
26.1.10.3.7+alpha.0.63+26.1.1
26.10.3.7+alpha.0.61+26.1
1.21.x12 of 12 versions with builds
1.21.110.4.0-alpha.0.28+1.21.11
1.21.100.3.6+alpha.0.11+1.21.10
1.21.90.3.5+alpha.0.44+1.21.9
1.21.80.3.5+alpha.0.9+1.21.8
1.21.70.3.5+alpha.0.1+1.21.7
1.21.60.3.4+alpha.0.43+1.21.6
1.21.50.3.4+alpha.0.21+1.21.5
1.21.40.3.2+alpha.0.45+1.21.4
1.21.30.3.1+alpha.0.45+1.21.3
1.21.20.3.0.0.0+1.21.3
1.21.10.4.0-alpha.0.30+1.21.1
1.210.2.0+alpha.11.109+1.21
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.x1 of 1 version with builds
ReleaseBetaAlphaNot available

This mod also publishes snapshot builds. Snapshots are not shown in the matrix.

Required by 1 mod

C2ME OpenCL Acceleration Module1.21.1 – 26.2

How it compares

Full comparison

StutterFix is a client and server mod for Fabric, open source under the MIT License, with files for 1.19.2 – 1.21. Dimensional Threading is open source under the MIT License and runs on Fabric for 1.16 – 1.19.2, with its client or server environment optional.

ModLoadersGame versionsEnvironmentUpdated
Concurrent Chunk Management Engine (Fabric)Fabric1.17.1 – 26.3Server required, client optional2026-10-13
StutterFixFabric1.19.2 – 1.21Client and server2024-08-01
Dimensional ThreadingFabric1.16 – 1.19.2Client or server, optional2022-07-07

In the catalog

Concurrent Chunk Management Engine (Fabric) is one of 3,545 Optimization mods on ModsFinder, and one of 2,575 Optimization mods for Fabric. 8,071 mods support Minecraft 26.3.

Optimization mods3,545Fabric modsMods for 26.38,071

More from ishland

All projects
Very Many Players (Fabric)1.18 – 26.3ScalableLux1.21 – 26.3Raise Sound Limit Simplified1.17.1 – 26.3Concurrent Chunk Management Engine (NeoForge)1.21.1 – 26.3Unsafe World Random Access Detector1.19 – 26.3Fix Keyboard on Linux1.18.2 – 1.21.11

Similar mods

Sodium1.16.3 – 26.3Iris Shaders1.16.5 – 26.3Entity Cullingb1.7.3 – 26.3FerriteCore1.16.5 – 26.3ImmediatelyFast1.18.2 – 26.3Sodium Extra1.16.2 – 26.3

What the author says

A Fabric mod designed to improve the chunk performance of Minecraft. Looking for experimental hardware-accelerated world generation as well?
ishland, on the Modrinth page

Official listing

Owner
ishland
Published
2021-10-02
Updated on Modrinth
2026-10-13
Facts verified
2026-10-15

Tags

Optimization
Open on ModrinthCompare