diff --git a/js/x11/core/examples/smoketest/benchmarks/atom_benchmark_parallel.js b/js/x11/core/examples/smoketest/benchmarks/atom_benchmark_parallel.js
new file mode 100644
index 0000000..710ed9b
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+++ b/js/x11/core/examples/smoketest/benchmarks/atom_benchmark_parallel.js
@@ -0,0 +1,63 @@
+// test results:
+
+// WinServ2008R2, Intel(R) Core(TM) i7 CPU 870  @ 2.93GHz + Xming 6.9.0.31
+//
+// 0.4.3/cygwin 32bit : 8500 +/- 2000 InternAtom/sec
+// 0.5.1/win32        : N/A
+//
+// Ubuntu 11.04 32bit, Intel(R) Core(TM)2 Duo CPU T7250 @2.00GHz, XOrg 1:7.6+4ubuntu3.1
+// 0.4.9pre:  16700 +/-300
+
+
+var x11 = require('../../../lib');
+
+var xclient = x11.createClient();
+var reqcounter = 0;
+var rescounter = 0;
+
+var num = 400000;
+var X;
+
+var t0 = +new Date();
+
+function benchmarkAtoms()
+{
+    if (reqcounter > num)
+        return;
+
+    X.InternAtom(false, 'test ' + reqcounter, function(atomId) {
+        rescounter++;
+        //console.log('%d received', rescounter);
+        if ( (rescounter % 10000) == 0)
+        { 
+            var t2 = X.t1;
+            X.t1 = +new Date();
+            var delta = X.t1 - t2;
+            console.log(reqcounter - rescounter);
+            console.log('reqs/msec: ' + 10000/delta);
+            console.log('msec per req: ' + delta/10000);
+        }
+        if (rescounter == (num-2))
+        {
+            var t1 = +new Date();
+            var delta = t1 - t0;
+            console.log(delta);
+            console.log('reqs/msec: ' + num/delta);
+            console.log('msec per req: ' + delta/num);
+             
+            process.exit(0);
+        }
+    });
+
+    reqcounter++;
+    //console.log('%d sent', reqcounter);
+    process.nextTick(benchmarkAtoms);
+}
+
+
+
+xclient.on('connect', function(err, display) {
+    X = this;
+    X.t1 = +new Date();
+    benchmarkAtoms();
+});