diff --git a/benchmark/http/cluster.js b/benchmark/http/cluster.js
new file mode 100644
index 0000000000..a8c7abe689
--- /dev/null
+++ b/benchmark/http/cluster.js
@@ -0,0 +1,37 @@
+var common = require('../common.js');
+var PORT = common.PORT;
+
+var cluster = require('cluster');
+if (cluster.isMaster) {
+  var bench = common.createBenchmark(main, {
+    // unicode confuses ab on os x.
+    type: ['bytes', 'buffer'],
+    length: [4, 1024, 102400],
+    c: [50, 150]
+  });
+} else {
+  require('../http_simple.js');
+}
+
+function main(conf) {
+  process.env.PORT = PORT;
+  var workers = 0;
+  var w1 = cluster.fork();
+  var w2 = cluster.fork();
+
+  cluster.on('listening', function() {
+    workers++;
+    if (workers < 2)
+      return;
+
+    setTimeout(function() {
+      var path = '/' + conf.type + '/' + conf.length;
+      var args = ['-r', '-t', 5, '-c', conf.c, '-k'];
+
+      bench.ab(path, args, function() {
+        w1.destroy();
+        w2.destroy();
+      });
+    }, 2000);
+  });
+}
diff --git a/benchmark/http/http_simple.js b/benchmark/http/http_simple.js
new file mode 100644
index 0000000000..2cef41f46f
--- /dev/null
+++ b/benchmark/http/http_simple.js
@@ -0,0 +1,29 @@
+var common = require('../common.js');
+var PORT = common.PORT;
+
+var bench = common.createBenchmark(main, {
+  // unicode confuses ab on os x.
+  type: ['bytes', 'buffer'],
+  length: [4, 1024, 102400],
+  c: [50, 150]
+});
+
+function main(conf) {
+  process.env.PORT = PORT;
+  var spawn = require('child_process').spawn;
+  var simple = require('path').resolve(__dirname, '../http_simple.js');
+  var server = spawn(process.execPath, [simple]);
+  setTimeout(function() {
+    var path = '/' + conf.type + '/' + conf.length; //+ '/' + conf.chunks;
+    var args = ['-r', '-t', 5];
+
+    if (+conf.c !== 1)
+      args.push('-c', conf.c);
+
+    args.push('-k');
+
+    bench.ab(path, args, function() {
+      server.kill();
+    });
+  }, 2000);
+}
diff --git a/benchmark/http_simple.js b/benchmark/http_simple.js
index 236b046e92..54500b49b5 100644
--- a/benchmark/http_simple.js
+++ b/benchmark/http_simple.js
@@ -4,8 +4,6 @@ var path = require('path'),
 
 var port = parseInt(process.env.PORT || 8000);
 
-console.log('pid ' + process.pid);
-
 var fixed = makeString(20 * 1024, 'C'),
     storedBytes = {},
     storedBuffer = {},
@@ -18,7 +16,7 @@ if (useDomains) {
   var domain = require('domain');
   var gdom = domain.create();
   gdom.on('error', function(er) {
-    console.log('Error on global domain', er);
+    console.error('Error on global domain', er);
     throw er;
   });
   gdom.enter();
@@ -43,7 +41,6 @@ var server = http.createServer(function (req, res) {
     if (n <= 0)
       throw new Error('bytes called with n <= 0')
     if (storedBytes[n] === undefined) {
-      console.log('create storedBytes[n]');
       storedBytes[n] = makeString(n, 'C');
     }
     body = storedBytes[n];
@@ -53,7 +50,6 @@ var server = http.createServer(function (req, res) {
     if (n <= 0)
       throw new Error('buffer called with n <= 0');
     if (storedBuffer[n] === undefined) {
-      console.log('create storedBuffer[n]');
       storedBuffer[n] = new Buffer(n);
       for (var i = 0; i < n; i++) {
         storedBuffer[n][i] = 'C'.charCodeAt(0);
@@ -66,7 +62,6 @@ var server = http.createServer(function (req, res) {
     if (n <= 0)
       throw new Error('unicode called with n <= 0');
     if (storedUnicode[n] === undefined) {
-      console.log('create storedUnicode[n]');
       storedUnicode[n] = makeString(n, '\u263A');
     }
     body = storedUnicode[n];
@@ -120,9 +115,6 @@ function makeString(size, c) {
 }
 
 server.listen(port, function () {
-  console.log('Listening at http://127.0.0.1:'+port+'/');
-});
-
-process.on('exit', function() {
-  console.error('libuv counters', process.uvCounters());
+  if (module === require.main)
+    console.error('Listening at http://127.0.0.1:'+port+'/');
 });