test/nashorn/examples/push-pop-benchmark.js
changeset 47216 71c04702a3d5
parent 26768 751b0f427090
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/nashorn/examples/push-pop-benchmark.js	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2010, 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/**
+ * Simple benchmark to measure push/pop specialized method performance
+ */
+
+var a = [];
+
+var RESULT = 15;
+
+function bench() {
+    var sum = 0;
+    for (var i=0;i<10;i++) {
+	a.push(i);
+    }
+    for (var i=0;i<10;i++) {
+	sum |= a.pop();
+    }
+    return sum;
+}
+
+function runbench() {
+    var sum = 0;
+    for (var iters = 0; iters<1e8; iters++) {
+	sum |= bench();
+    }
+    return sum;
+}
+
+var d = new Date;
+var res = runbench();
+print((new Date - d) + " ms");
+print();
+if (res != RESULT) {
+    print("ERROR: Wrong result - should be " + RESULT);
+} else {
+    print("Verified OK - result is correct");
+}