--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.graal.microbenchmarks/src/com/oracle/graal/microbenchmarks/graal/SimpleSyncBenchmark.java	Wed Nov 25 15:32:07 2015 +0100
@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2015, 2015, 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.
+ */
+package com.oracle.graal.microbenchmarks.graal;
+
+import org.openjdk.jmh.annotations.Benchmark;
+import org.openjdk.jmh.annotations.Scope;
+import org.openjdk.jmh.annotations.State;
+import org.openjdk.jmh.annotations.Warmup;
+
+/**
+ * Benchmarks cost of non-contended synchronization.
+ */
+public class SimpleSyncBenchmark extends GraalBenchmark {
+
+    public static class Person {
+        public int age;
+
+        public Person(int age) {
+            this.age = age;
+        }
+
+        public synchronized int getAge() {
+            return age;
+        }
+
+        public synchronized void setAge(int age) {
+            this.age = age;
+        }
+
+        public synchronized void setAgeIfNonZero(int age) {
+            if (age != 0) {
+                this.age = age;
+            }
+        }
+    }
+
+    @State(Scope.Benchmark)
+    public static class ThreadState {
+        Person person = new Person(22);
+        int newAge = 45;
+    }
+
+    @Benchmark
+    @Warmup(iterations = 20)
+    public void setAgeCond(ThreadState state) {
+        Person person = state.person;
+        person.setAgeIfNonZero(state.newAge);
+    }
+
+    @Benchmark
+    @Warmup(iterations = 20)
+    public int getAge(ThreadState state) {
+        Person person = state.person;
+        return person.getAge();
+    }
+
+    @Benchmark
+    @Warmup(iterations = 20)
+    public int getAndIncAge(ThreadState state) {
+        Person person = state.person;
+        int oldAge = person.getAge();
+        person.setAge(oldAge + 1);
+        return oldAge;
+    }
+}