I am using siege to test my last project, Numerino[1] a priority queue, my experience has been great, easy to use and very performant.<p>[1]: <a href="https:&#x2F;&#x2F;github.com&#x2F;siscia&#x2F;numerino" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;siscia&#x2F;numerino</a>