Data Miner

Comprehensive diagnostic and profiling mod for Minecraft 26.1.2. Dumps every game registry to enriched JSON, monitors FPS/MSPT, traces live game events, measures action latency (eating, block breaking, slow ticks), profiles mod impact with per-mod analysis, and logs errors — all with zero game-thread blocking.

Features

• Registry Dumps — All BuiltInRegistries exported to JSON with detailed properties (hardness, food, sound, dimensions)
• Performance Monitor — FPS (min/max/avg) + MSPT via /dataminer perf start/stop
• Latency Analyzer — Automatically tracks eating time, block breaking time, and slow ticks (>50ms MSPT). Runs by default (latencyAlwaysOn: true), no command needed
• Mod-Aware Slow Ticks — Each slow tick includes entities_by_mod breakdown to identify which mod causes lag
• Full Mod Analysis — startup/mod_analysis.json with per-mod ID, version, registry counts, dependencies, and potential issues (missing deps, high entity counts)
• Event Tracer — Live game events: player movement, block placement, damage, entity spawns/deaths, chunk loads
• Error Collection — All uncaught exceptions logged with full stack traces to startup/errors/ and events/errors/
• Async I/O — All file operations run on background threads, zero game freezes

Commands

Output Structure

info_client_data_miner/  (or info_server_data_miner/)
├── startup/
│   ├── registries/        # All game registries in enriched JSON
│   ├── mods.json          # Loaded mods with versions/deps
│   ├── mod_impact.json    # Blocks/items/entities per namespace
│   ├── mod_analysis.json  # Per-mod profile with potential issues
│   ├── info.json          # MC version, Java, OS, RAM, locale
│   └── errors/            # Startup exceptions
├── performance/
│   ├── *.json             # FPS/MSPT session reports
│   └── latency/
│       └── *.json         # Eating/breaking/slow-tick reports with mod context
├── events/
│   ├── *.json             # Live event traces
│   └── errors/            # Event handler exceptions

Configuration

Config file: config/dataminer-common.toml

Key Options

Requirements

• NeoForge 26.1.2.76+
• Java 25
• Client and Server (Both)