Add perf test to compare 8u31 vs 8u40

winterbe · winterbe · commit a42a7d4d37b6 · 2015-03-04T13:56:08.000+01:00
diff --git a/res/nashorn9.js b/res/nashorn9.js
@@ -0,0 +1,9 @@
+var size = 100000;
+
+var testPerf = function () {
+    var result = Math.floor(Math.random() * size) + 1;
+    for (var i = 0; i < size; i++) {
+        result += i;
+    }
+    return result;
+};
diff --git a/src/com/winterbe/java8/Nashorn9.java b/src/com/winterbe/java8/Nashorn9.java
@@ -0,0 +1,31 @@
+package com.winterbe.java8;
+
+import jdk.nashorn.api.scripting.NashornScriptEngine;
+
+import javax.script.ScriptEngineManager;
+import javax.script.ScriptException;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * @author Benjamin Winterberg
+ */
+public class Nashorn9 {
+
+    public static void main(String[] args) throws ScriptException, NoSuchMethodException {
+        NashornScriptEngine engine = (NashornScriptEngine) new ScriptEngineManager().getEngineByName("nashorn");
+        engine.eval("load('res/nashorn9.js')");
+
+        long t0 = System.nanoTime();
+
+        double result = 0;
+        for (int i = 0; i < 1000; i++) {
+            double num = (double) engine.invokeFunction("testPerf");
+            result += num;
+        }
+
+        System.out.println(result > 0);
+
+        long took = System.nanoTime() - t0;
+        System.out.format("Elapsed time: %d ms", TimeUnit.NANOSECONDS.toMillis(took));
+    }
+}
