That seems uncharitable. The linked issue barely mentions frevib's echo server, and in the one place it does it's the fastest! Further they show that performa

That seems uncharitable. The linked issue barely mentions frevib's echo server, and in the one place it does it's the fastest! Further they show that performance improves when using io_uring for readiness polling but standard read/write calls to actually write - that suggests io_uring_for_each_cqe does not explain the cases where epoll is faster. > I've submitted a quick and dirty untested PR That's not improving the situation much then - surely any performance fix should come with at least a rudimentary benchmark?