hello-node.js

var cluster = require('cluster');

if (cluster.isMaster) {
  return require('os').cpus().forEach(cluster.fork);
}

require('http').createServer(function(req, res) {
  res.end("hello world\n");
}).listen(8000);

hello.go

package main

import (
  "net/http"
  "runtime"
)

func main() {
  runtime.GOMAXPROCS(runtime.NumCPU())
  handler := func(w http.ResponseWriter, r *http.Request) {
    w.Write([]byte("hello world\n"))
  }
  http.ListenAndServe(":8000", http.HandlerFunc(handler))
}