Clojurians Log v2

Use wrk2 to bombard your server and see what rate it handles Attach a profiler, either clj-async-profiler or JFR and profile the server during load testing

You can also profile the handler you pass the server directly with criterium and async profiler

this might not be the expected answer given this forum, but I like using locust (written in Python). I like it for its ability to really write custom code for load testing. YMMV