Great work, thanks!
I'm curious whether disabling the slow kernel network features competes with an tcp bypass stack. I did my own wrk benchmark [0], but I did not try to optimize the kernel stack beyond pinning CPUs and busypoll, because the bypass was about 6 times as fast. I assumed that there is no way the kernel stack could compete with that. This article shows that I may be wrong. I will definitely check out SO_ATTACH_REUSEPORT_CBPF in the future.
[0] https://github.com/raitechnology/raids/#using-wrk-httpd-load...