NodeBench

nb.js

var http = require('http');

var maxConnections = 1000, maxRequests = 10000;

var connections = 0, requests = 0, errors = 0, done = 0;

var options = {
  host: 'target',
  port: 80,
  path: '/'
};

function canRequest () {
  return connections < maxConnections && requests < maxRequests;
}

function showResult () {
  console.log('Total: ', requests);
  console.log('Error: ', errors);
  console.timeEnd('timer');
}

console.time('timer');

(function perform() {
  if (canRequest()) {
    process.nextTick(perform);
  } else {
    return;
  }

  requests ++;
  connections ++;

  http.get(options, function (res) {
    done ++;
    connections --;
    
    /*
    process.nextTick(function () {
      console.log(requests, connections, done);
    });
     */
    
    if (done >= maxRequests) {
      showResult();
    }
    process.nextTick(perform);
    res.setEncoding('utf8');
    res.on('data', function (chunk) {
      /* NOP */
    });
  }).on('error', function (e) {
    errors ++;
    console.log(e.message);
  });
})();