Is there an open-ended load testing tool for keydb?

[csbo98]

Generally, we use memtier_benchmark to test keydb. However, memtier_benchmark is a close-ended tool. It only lanchs a new request when the completion of a previous request. That is not suitable for my test scenario. I want a open-ended load testing tool. I don't find such an open-ended testing tools, is there an open-ended load testing tool for keydb?