About ThreadTweak
From ModrinthImprove and tweak Minecraft thread scheduling. Fork of Smooth Boot for ≥1.20
ThreadTweak lets you improve and tweak Minecraft CPU scheduling. It is a maintained version of the original Smooth Boot mod, allowing you to still change CPU thread priorities in-game.
Why was this made if it's no longer needed?
While the main function of Smooth Boot was fixed in 1.19.4, the mod still allows you to adjust thread priorities, which can still be quite beneficial on some systems as shown in UltimateBoomer/mc-smoothboot #54.
Is this faster than the original mod?
Not in any way - this is simply a maintained version of the final version of Smooth Boot. There may or may not be extra features or improvements added as requested or while I have the time.
Email with permission from the original author
Hello Devin,
I certainly have no problems if you want to maintain a fork of Smooth Boot for future versions of Minecraft. I understand that Smooth Boot can still be useful in version 1.20 and later, though personally I'm not interested in maintaining the mod right now. I also suggest a different name to be used, though you don't have to if you don't want to. Smooth Boot's original purpose of making Minecraft launch faster is no longer necessary, so a different name would convey the purpose of the mod more accurately.
Thanks,
UltimateBoomer
Highlights
From source dataGame versions
Supports 17 Minecraft versions, the newest being 1.21.11.
Loaders
Runs on Fabric and Quilt.
Footprint
Rated a light load on a server.
ThreadTweak on Nxeon
From our catalogue- One-click install
- Supported on Nxeon Minecraft servers. We download it from Modrinth, place it, and restart the server.
- Server side
- Optional on the server
- Server type needed
- Fabric, Quilt
- Server load
- light
- Smallest plan we suggest
- Minecraft — 2 GB (2 GB RAM). This follows our own load rating above, not a benchmark.
- Latest build
- 0.1.8, released 2026-02-20
Game versions by loader
| Loader | Game versions | Newest |
|---|---|---|
| Fabric | 1.21 to 1.21.11 (11 versions) | 1.21.11 |
| Quilt | 1.21 to 1.21.11 (11 versions) | 1.21.11 |
From 5 recorded builds of ThreadTweak.
Recent builds
| Build | Released | Game versions | Loaders |
|---|---|---|---|
| 0.1.8 | 2026-02-20 | 1.21.9 to 1.21.11 (3 versions) | Fabric, Quilt |
| 0.1.7 | 2025-04-12 | 1.21.3 to 1.21.8 (6 versions) | Fabric, Quilt |
| 0.1.6 | 2024-11-23 | 1.21.3 | Fabric, Quilt |
| 0.1.5 | 2024-08-23 | 1.21.1 | Fabric, Quilt |
| 0.1.4+mc1.21 | 2024-07-31 | 1.21 | Fabric, Quilt |
Run ThreadTweak on a Minecraft server
Pick a server or deploy a new one above; it is installed in one click.
What kind of mod it is
From the catalogQuality of life & UI
Small conveniences, tweaks and interface improvements players notice straight away.
Works on a server
From source side supportModrinth lists server-side support for ThreadTweak as optional: it can run on a server, but isn’t required there.
Compatibility
- Game
- Minecraft
- Loaders
- FabricQuilt
- Runs on
- Serveroptional on the server
- Game versions
- 1.21.11 and 16 earlier
Verified at the source
- ✓ModrinthOfficial listing, checked 2026-10-01Open ↗
- ✓Authorgetchoo, as published on Modrinth
- ✓LicenseMITFree
