Incremental Player Save
作者：rebot | 分类：模组
Minecraft 版本： 26.2
平台： fabric
标签： game-mechanics management optimization
Incremental Player Save
A mod to eliminate MSPT spikes caused by player data auto-save on Minecraft servers.
What It Does
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 can cause a large MSPT spike.
Incremental Player Save fixes this by spreading player saves across multiple ticks, saving a small batch of players per tick rather than all at once. This mod was inspired by Paper's incremental player saving feature.
Who This Is For
Install this mod if you see any of the following:
- Regular MSPT spikes every auto-save interval (default: every 6000 ticks / 5 minutes)
net.minecraft.server.PlayerManager.saveAllPlayerDataappearing in Spark profiler results during spikes
This mod targets only player .dat file writes. It will not reduce spikes from chunk saving or other auto-save work.
Configuration
All options are in the mod's config file in config/incrementalplayersave.json
| Option | Description | Default |
|---|---|---|
ticksBetweenSaveAttempts |
How often (in ticks) the mod checks which players are due for a save | 20 |
ticksBetweenSavesPerPlayer |
Minimum ticks between saves for any individual player | 6000 |
maxPlayersSavedPerAttempt |
Maximum number of players saved per attempt. Controls per-tick save cost | 3 |
enableDebugLog |
Log save actions to console | false |
Other Notes
-
Some optimization mods may include similar functionality. Use Spark to confirm whether
saveAllPlayerDatastill appears in your profiles before installing. On my server with many optimization mods like Lithium, none of them alleviated the tick spike caused by PlayerManager.saveAllPlayerData(). -
net.minecraft.server.PlayerManager.saveAllPlayerData()isnet.minecraft.server.players.PlayerList.saveAll()in Mojang Mappings.
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