Hi Jan! Thanks for sharing!
I'm both a dev for few of the mentioned frameworks i.e. Netty/Vertx/Quarkus (and
recently sent a PR for undertow, that's indeed very very good in HTTP 1.1 - you can
check it here ->
https://www.techempower.com/benchmarks/#section=test&runid=ef7991e0-3...)
and I've filled an issue in the repo of the benchmark with few suggestions.
thanks again,
Franz