You can check each information from Table of Contents of Compilation Report.

Expand Fitter ⇒ Resource Section.

・Control Signals

You can check the usage status of control signals declared in the design.
You can also check whether the clock, clock enable, and clear signals are working as intended, as well as use/not use globals and fan-out counts.


・Global & Other Fast Signals

Check the usage status of the global wiring that the device has.


・Non-Global High Fan-Out Signals

Lists routes that do not use global routes in descending order of number of fan-outs.


If the global wiring is not used, the arrival delay is not constant, so if the operating frequency is fast, there is a possibility that the operation will vary.
Care must be taken with signals with high fan-out.