CurseForge · Minecraft mod
Server Performance - Smooth Chunk Save
Enables lag-free continuous chunk saving, increasing server TPS
Quick answer
Which Server Performance - Smooth Chunk Save release matches 26.1.2 NeoForge?
Server Performance - Smooth Chunk Save smoothchunk-26.1-4.2.jar targets 26.1, 26.1.1, 26.1.2 with NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. All 1 required mods have matching files.
Where it goes
Is Server Performance - Smooth Chunk Save required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does Server Performance - Smooth Chunk Save smoothchunk-26.1-4.2.jar need?
smoothchunk-26.1-4.2.jar on 26.1.2 NeoForge. Every mod below is checked against that same setup.
Install Cupboard first. We found matching files for this game-version and loader setup.
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Server Performance - Smooth Chunk Save without breaking your instance.
Built for Server Performance - Smooth Chunk Save smoothchunk-26.1-4.2.jar on 26.1.2 NeoForge. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use smoothchunk-26.1-4.2.jar. It targets 26.1, 26.1.1, 26.1.2 with NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Cupboard first. We found matching files for this game-version and loader setup.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside smoothchunk-26.1-4.2.jar. It opens that exact file at the source.
About this project
What does Server Performance - Smooth Chunk Save add?
Saves chunks continuously over time, reducing server lag and preventing lagspikes from saving too many chunks at once.
Vanilla 1.18: Server with 3 players. Chunk saving takes ~ 11% of the server tick.
With smooth chunk saving: 0.3% of the server tick
Depending on some varying factors this can give you up to 10% more server side performance effectively, with no downsides.
Server here also applies to playing in single-player worlds, as those are running an integrated server.
Requires Cupboard dependency to be installed in newer versions

- Set the time interval after which a chunk is saved
- Set how many chunks can get unloaded at once
- Enable debug logging
Only Required on server side(Integrated/Dedicated)
No known incompatibilities, should work fine with any mod.

If you enjoy this mod consider supporting the development, any support is greatly appreciated.
The development is an unpaid free-time activity, so any support helps being able to spend more time on it.
You can support me on Patreon or just spreading the word around.
Project description from CurseForge.
Pick your setup
Server Performance - Smooth Chunk Save by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.2
2 loader builds26.1.2
2 loader builds26.1.1
2 loader builds26.1
2 loader builds1.21.1
2 loader builds1.21
2 loader builds1.20.1
3 loader builds1.20
3 loader builds1.19.4
2 loader builds1.19.3
2 loader builds1.19.2
3 loader builds1.19.1
2 loader buildsShowing the newest 12 of 16 game versions. Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Server Performance - Smooth Chunk Save versions and loaders
smoothchunk-26.1-4.2.jar
9 Apr 2026
Looking for an older file? The official CurseForge project page is in Resources.