Locust [1] is fantastic for load testing for python or any REST API, it's also nice as wrk. [2]<p>In our startup we used it to test 100,000 users traffic on our python based backend and optimized it continuously. We also used wrk with test cases written in LUA scripts. That too worked fantastic.<p>We did not use bokeh visualization, but just with locusts we could improve the response time by logging and improving sqlalchemy query logs.<p>[1] <a href="https://locust.io/" rel="nofollow">https://locust.io/</a><p>[2] <a href="https://github.com/wg/wrk" rel="nofollow">https://github.com/wg/wrk</a>