We've measured HTTP GET request performance using JMH as the benchmark tool:
ActiveJ result is 171.8K RPS on a single CPU. Not only is it faster than highly-specialized Vert.x (162.9K RPS), but also with 50% less CPU load.
When using HTTP pipelining, performance reaches 1.5M RPS.
ActiveJ has placed first in the-benchmarker's web frameworks benchmark as per 2021-07-18.
You can find HTTP benchmark sources on GitHub