how to run dhrystone benchmark using spike?

I'm new to rocket-chip and I was trying to run a drystone using spike.
my question is how it can be done and how is it connected to the rocket-chip?
and how can I add other benchmarks such as Caremark and find the dynamic and static instruction count.

Start by tracing the Rocket Chip and Spike entry points used to run the Dhrystone benchmark. Document how Spike connects to Rocket Chip, how to add the listed Caremark benchmark, and how to obtain dynamic and static instruction counts.

Written by the indexing model from the issue text.