/debug

Starts or stops a debug profiling session, or profiles a specific function. Generates a profiling report in the debug folder.

Syntax

/debug <start|stop|function> [<function>]

Parameters

Name	Type	Required	Description
action	literal	Required	start = begin profiling; stop = end profiling and save report; function = profile a specific function.
function	resource	Optional	The function to profile (only for 'function' action).

Examples

/debug start

Starts a server profiling session.

/debug stop

Stops profiling and saves the report to the debug folder.

/debug function my_pack:heavy_function

Profiles a specific function and outputs performance data.

Common Mistakes

Running /debug start without /debug stop, the profiling session continues until stopped, collecting data indefinitely.
Expecting real-time output, the report is saved as a file after stopping.

Notes

Profiling reports are saved in the 'debug' folder within the world directory. The report includes tick timing, entity counts, and other performance data. Useful for identifying lag sources.

Related Commands

/function

/tick

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