08/24/2017 (Thu) 01:04:38
I don't have enough knowledge about http servers to answer you. But, I don't think performance is the only thing that matters.
And, it's also affected by many other configurations, such as where your cache is being written (this will depend on your disk write speed and your filesystem).
Open source unix-based systems have more flexibility to work with. You can compile linux, for example, to the bare minimum to work with and the resource usage will be trivial. Not like windows, where you can't disable low level stuff and need to have useless memory usage.
Morpheus with rwasa, for example, will give you very good performance:
Or, use NuttX. It's a realtime OS, and has it's on http server on base system: