Benchmarks are useless if you don't understand what it is you're measuring. A contrived "Hello world" benchmark tells you nothing because your bottleneck is in

Benchmarks are useless if you don't understand what it is you're measuring. A contrived "Hello world" benchmark tells you nothing because your bottleneck is in the system calls, which has nothing to do with what framework you use. If you run a web service that requires a compute or memory intensive task, like a game server physics engine, or multimedia streaming, or anything that requires large-scale postprocessing, you're going to heavily rely on C or C++ based libraries to do the heavy lifting.