diff --git a/benchmark/http.sh b/benchmark/http.sh
index 22b4b7c8c6..40d0c714c2 100755
--- a/benchmark/http.sh
+++ b/benchmark/http.sh
@@ -4,7 +4,9 @@ sudo sysctl -w net.inet.ip.portrange.first=12000
 sudo sysctl -w net.inet.tcp.msl=1000
 sudo sysctl -w kern.maxfiles=1000000 kern.maxfilesperproc=1000000
 ulimit -n 100000
+
 ./node benchmark/http_simple.js || exit 1 &
 sleep 1
-ab -n 30000 -c 100 http://127.0.0.1:8000/bytes/123 | grep Req
+
+ab -n 30000 -c 100 http://127.0.0.1:8000/${TYPE:-bytes}/${LENGTH:-1024} | grep Req
 killall node
diff --git a/benchmark/http_simple.js b/benchmark/http_simple.js
index 74ba4d7768..bd0a1c8364 100644
--- a/benchmark/http_simple.js
+++ b/benchmark/http_simple.js
@@ -14,7 +14,27 @@ for (var i = 0; i < 20*1024; i++) {
 stored = {};
 storedBuffer = {};
 
+var useDomains = process.env.NODE_USE_DOMAINS;
+
+// set up one global domain.
+if (useDomains) {
+  var domain = require('domain');
+  var gdom = domain.create();
+  gdom.on('error', function(er) {
+    console.log('Error on global domain', er);
+    throw er;
+  });
+  gdom.enter();
+}
+
 var server = http.createServer(function (req, res) {
+
+  if (useDomains) {
+    var dom = domain.create();
+    dom.add(req);
+    dom.add(res);
+  }
+
   var commands = req.url.split("/");
   var command = commands[1];
   var body = "";