ChunkMonitor

ChunkMonitor is a Paper plugin that helps you spot players causing lag by monitoring chunk generation. Ever wonder why your TPS drops? This plugin shows you who’s generating the most chunks in real-time!

Features

• Monitors chunk generation in real-time.
• Displays a boss bar showing the player generating the most chunks per minute.
• Boss bar changes color based on the rate of chunk generation:
  • Green for low generation.
  • Yellow for medium generation.
  • Red for high generation.
• Updates chunk generation statistics at a configurable interval.
• Supports player joining with the boss bar being displayed if necessary.

In-game picture

• Low chunk generation
• Medium chunk generation
• High chunk generation

Compatibility

This is a Paper plugin and will not work with Spigot servers, but Purpur is fine.

I don't know if any version other than 1.21.5 would work, because that's the only version I tested.

Configuration

You can adjust the plugin’s behavior using the configuration file (config.yml), which is generated upon enabling the plugin.

Available Configuration Options:

• update-interval-ticks:

  • The interval (in ticks) at which chunk statistics are updated.
  • Default: 20 (1 second)

• min-display-threshold:

  • The minimum chunk generation rate required to display the boss bar.
  • Default: 250.0 (chunks per minute)

• yellow-threshold:

  • The chunk generation rate at which the boss bar color changes to yellow.
  • Default: 500.0 (chunks per minute)

• red-threshold:

  • The chunk generation rate at which the boss bar color changes to red.
  • Default: 1000.0 (chunks per minute)

• maxAttributionDistance:

  • The maximum distance a player can be from a chunk to be counted as the "nearest" player generating the chunk.
  • Default: 50.0 (blocks)

Credits

Since this is my first Java plugin project.
This plugin was created with the help of the Paper documentation, Spigot documentation and ChatGPT. (I know it's stupid)

Copyright (c) 2023-2025 Techit Thawiang. All rights reserved unless otherwise noted.