tls-connect.js

var assert = require('assert'),
    fs = require('fs'),
    path = require('path'),
    tls = require('tls'),
    CERT_DIR = path.resolve(__dirname, '../test/fixtures');

var target_connections = 10000,
    concurrency = 10,
    initiated_connections = 0,
    server_connections = 0,
    client_connections = 0,
    start = Date.now();

var options = {
  key: fs.readFileSync(CERT_DIR + '/test_key.pem'),
  cert: fs.readFileSync(CERT_DIR + '/test_cert.pem'),
  ca: [ fs.readFileSync(CERT_DIR + '/test_ca.pem') ]
}
  
var server = tls.createServer(options, function(conn) {
  server_connections++;
  
  if (server_connections === target_connections)
    server.close();
});

server.listen(8000);

function makeConnection() {
  if (initiated_connections >= target_connections)
    return;
    
  initiated_connections++;
  
  var conn = tls.connect(8000, function() {
    client_connections++;

    if (client_connections % 100 === 0)
      console.log(client_connections);
      
    conn.end();
    makeConnection();
  });
}

for (var i = 0; i < concurrency; i++)
  makeConnection();
  
process.on('exit', function() {
  var end = Date.now(),
      s = (end - start) / 1000,
      persec = Math.round(target_connections / s);
  
  assert.equal(initiated_connections, target_connections);
  assert.equal(client_connections, target_connections);
  assert.equal(server_connections, target_connections);
  
  console.log("%d connections in %d s", target_connections, s);
  console.log("%d connections per second", persec);
});