Rust Performance

hyper-hello.rs

extern crate hyper;

use hyper::Server;
use hyper::server::{Request, Response};

fn handle(_: Request, res: Response) {
    res.send(b"Hello World!").unwrap();
}


fn main() {
    Server::http("127.0.0.1:3000").unwrap().handle(handle).unwrap();
}

iron-hello.rs

extern crate iron;

use iron::prelude::*;
use iron::status;

fn main() {
    Iron::new(|_: &mut Request| Ok(Response::with((status::Ok, "Hello world!"))))
        .http("localhost:3000")
        .unwrap();
}

nickel-hello.rs

#[macro_use]
extern crate nickel;

use nickel::{Nickel, HttpRouter};

fn main() {
    let mut server = Nickel::new();
    server.get("**", middleware!("Hello World"));
    server.listen("127.0.0.1:3000");
}