HotSpot Logging

Ho to all,
I would to log hotspot access and then i added in system logging the topic “hotspot” but this log file is always empty.
Can you help me?

What is your configuration for /system logging?
HotSpot is usually logged with topic info.
You may use HotSpot together with debug topic to see additional information about the HotSpot.

I configured debug topic and now is ok.
Thanks a lot