Bedrock Lag Analyzer

Overview

This tool analyzes Minecraft Bedrock Edition .cpuprofile files and reports the exact source locations recorded in each profiler node. Time is sampled self time: it identifies where the profiler observed the CPU executing, without guessing about unrecorded code or claiming that sampling proves causation.

How to Obtain a .cpuprofile

1. Load into your Minecraft Bedrock world or connect to your dedicated server.
2. In the chat or server console, run the command: /script profiler start
3. Play the game and reproduce the lag you want to analyze (wait about 1 to 3 minutes for a good sample size).
4. Run the command: /script profiler stop
5. Locate the generated file:
   • Local Worlds (PC/Mobile): Look in your device's games/com.mojang/minecraftWorlds/<World_Folder>/profiling/ directory.
   • Dedicated Servers: Look in the server's root profiling/ directory.

How to Analyze

1. Generate a .cpuprofile file using the steps above.
2. Drag and drop the file into the input zone, or click to browse your computer.
3. Wait for the system to process the data.
4. Review the Analysis Results. Focus on Critical and High priority items first to improve performance.