Talk:Commands/perf

Perf is a real command
It is added in the latest 1.17 pre-release:

"DEDICATED SERVER PERF START/STOP COMMAND perf start will start a recording for 10 seconds capturing metrics such as tick durations, used heap sizes and other more detailed stats.

perf stop before the 10-second limit will end the recording early." https://www.minecraft.net/en-us/article/minecraft-1-17-pre-release-1#:~:text=DEDICATED%20SERVER%20PERF,the%20recording%20early.