Performance Metrics — minecraft

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This feature is exclusive to Java Edition.

Generating the log

By pressing F3 + L, the debug log process will begin. The process defaults to 10 seconds, but may be stopped at any time by pressing F3 + L again.

Log

.zip file structure

(date).zip
- profiling.txt
- deviations
  - (tick@date).txt
- metrics
  - eventloops.csv
  - frame_times__ms_.csv
  - jvm.csv
  - mailboxes.csv
  - rendering_chunk_dispatching.csv
  - rendering_chunk_stats.csv
  - task_total_durations__ms_.csv

History

Java Edition
1.17		21w11a			Added Performance Metrics.