benchmark: add single process tls connection benchmark

benchmark/tls-connect.js

@@ -0,0 +1,86 @@
+
+var assert = require('assert'),
+    fs = require('fs'),
+    path = require('path'),
+    tls = require('tls');
+
+
+var target_connections = 10000,
+    concurrency = 10;
+
+for (var i = 2; i < process.argv.length; i++) {
+  switch (process.argv[i]) {
+    case '-c':
+      concurrency = ~~process.argv[++i];
+      break;
+
+    case '-n':
+      target_connections = ~~process.argv[++i];
+      break;
+
+    default:
+      throw new Error('Invalid flag: ' + process.argv[i]);
+  }
+}
+
+
+var cert_dir = path.resolve(__dirname, '../test/fixtures'),
+    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, onConnection);
+server.listen(8000);
+
+
+var initiated_connections = 0,
+    server_connections = 0,
+    client_connections = 0,
+    start = Date.now();
+
+for (var i = 0; i < concurrency; i++)
+  makeConnection();
+
+
+process.on('exit', onExit);
+
+
+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 + ' of ' + target_connections +
+                  ' connections made');
+
+    conn.end();
+    makeConnection();
+  });
+}
+
+
+function onConnection(conn) {
+  server_connections++;
+
+  if (server_connections === target_connections)
+    server.close();
+}
+
+
+function onExit() {
+  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);
+}