Skip to main content
MC COMMANDS logoMC COMMANDS
Command Reference

Minecraft /perf Command

developerJava Only

Starts or stops recording performance metrics, generating a diagnostic ZIP report in the server's debug folder.

Version Compatibility

Java Edition:1.21.4 (1.13+)

Command Syntax

Java Edition/perf start | /perf stop

Arguments Explained

actionstart / stopRequired

Whether to start or stop the performance diagnostic recording.

Practical Examples

/perf start

Begins tracking detailed tick times, CPU load, and resource allocations.

/perf stop

Concludes diagnostic tracking and saves a summary report to disk.

Advertisement

Important Notes

Essential for server creators diagnosing lag spikes, tick drops, or custom plugin/datapack performance issues.

Advertisement