MultiCore Helper Paper

MultiCore Helper Paper

Standalone server-side plugin for Minecraft 26.3, Paper API 26.3 and Java 25. This is not a Forge, Fabric, NeoForge or Folia mod. No client installation is required.

Features
Monitor TPS, average MSPT, loaded chunk and entity totals, heap usage, snapshot age and worker status. Main-thread sampling captures immutable totals; one private bounded background worker analyzes snapshots without asynchronously accessing or modifying worlds, chunks, entities or players. This is diagnostic monitoring, not a promise of higher FPS/TPS or fully parallel world simulation.

Commands (operators/console or multicorehelper.admin)
/mch status - display status
/mch analyze - capture and analyze a fresh snapshot
/mch save - explicitly save players and worlds on the main thread; disk writes may pause ticks

Safety and compatibility
Automatic entity cleanup and global thread-pool tuning are not included. Geyser and Floodgate are optional; no authentication, UUID or packet behavior is modified. Plugin startup, analyze, status, save and stop were tested on an isolated Paper server with and without Geyser/Floodgate. Actual Bedrock login and long-duration load testing were not performed. Normal server stop and saving remain owned by Paper. Back up your server before installing and perform cold backups only after full server shutdown.

Installation
Stop your Paper 26.3 server, place the JAR in plugins/, then start with Java 25. Review plugins/MultiCoreHelper/config.yml. Use a separate test server before production deployment. Folia is unsupported.

Author: snowolf50161