Incremental Player Save
Incremental Player Save spreads player data writes across several ticks so that periodic saves no longer cause MSPT spikes on Fabric servers.
What it does
Instead of writing every player's player.dat file in one tick, the mod saves a small batch of players per tick, which smooths out the MSPT spikes that the periodic auto-save produces. The default interval is 6000 ticks, or 5 minutes. The mod is inspired by Paper's incremental player saving feature, and it targets only player.dat file writes, leaving chunk saving and other auto-save work alone. It is server-side only, so players join without installing it, and it is released under the MIT License as open source. Fabric files exist for 26.2 and newer builds in the same release line.
Key features
Batched player saves
Player data is written in small groups each tick rather than all at once, reducing the spike in saveAllPlayerData.
Player data only
Only player.dat writes are split up, so chunk saving and other auto-save work keep their existing timing.
Configurable save interval
The auto-save interval defaults to 6000 ticks and can be adjusted on the server.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
TPSnitch is a Fabric server-side mod under the Apache License 2.0 and open source, for 1.21 – 26.2, and it reports tick performance rather than changing saves. MiniHUD MSPT Provider is server-side only, open source under CC0 1.0 Universal, and built for 26.1 – 26.1.2, so it suits a narrower set of versions.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Incremental Player Save | Fabric | 1.21.11 – 26.2 | Server-side only | 2026-07-03 |
| TPSnitch | Fabric | 1.21 – 26.2 | Server-side only | 2026-07-09 |
| MiniHUD MSPT Provider | Fabric | 26.1 – 26.1.2 | Server-side only | 2026-04-01 |
Questions
Does Incremental Player Save need to be installed on the client?
In the catalog
Incremental Player Save is one of 3,545 Optimization mods on ModsFinder, and one of 2,575 Optimization mods for Fabric. 13,894 mods support Minecraft 26.2.
Similar mods
What the author says
A mod to eliminate MSPT spikes caused by player data auto-save on Minecraft servers. Minecraft's auto-save calls net.minecraft.server.PlayerManager.saveAllPlayerData() once per save interval, writing every online player's data to disk in a single tick. On servers with many players or with a lot of player data, this…
Official listing
- Modrinth page
- modrinth.com/mod/incremental-player-save
- Owner
- ExtraJuiceMan
- Published
- 2026-06-06
- Updated on Modrinth
- 2026-07-03
- Facts verified
- 2026-10-15