Hello World for gunicorn and Node.js

gistfile1.txt

# both tested with: httperf --hog --server 127.0.0.1 --port 8012 --num-conn 100 --num-calls 100

# gunicorn -k gevent -b 0.0.0.0:8012 app:application
def application(environ, start_response):
    status = '200 OK'
    res = "Hello world!"
    response_headers = [
        ('Content-type','text/plain'),
        ('Content-Length',str(len(res)))]
    start_response(status, response_headers)
    yield res
#    return [res]

# node app.js
var express = require('express');
var app     = express();

app.get('/', function(req, res) {
  res.send("Hello world!");
});

app.listen(8012);