Thanks! I'll check JMH out now. Some week ago, while I thought the problem was todo with something in Clojure - https://twitter.com/pappapez/status/148633951890

Thanks! I'll check JMH out now. Some week ago, while I thought the problem was todo with something in Clojure - https://twitter.com/pappapez/status/1486339518902984707?s=20&t=lxMxDvX9iNmR75GykyJTPg https://twitter.com/pappapez/status/1486339518902984707?s=20... - I ran async-profiler via clj-async-profiler. It turned out to not be granular enough. OTOH, the problem had different clues then and I should try it again now with the latest Java-only repro.