Index: src/benchmark/mutex/JavaThread.java
===================================================================
--- src/benchmark/mutex/JavaThread.java	(revision 6aa537a4e23382dcd70067bf61863a8aa795cccb)
+++ src/benchmark/mutex/JavaThread.java	(revision 6aa537a4e23382dcd70067bf61863a8aa795cccb)
@@ -0,0 +1,14 @@
+public class JavaThread {
+	public synchronized void noop() {}
+
+	public static void main(String[] args) {
+		int NoOfTimes = 5000000;
+		JavaThread j = new JavaThread();
+		long start = System.nanoTime();
+		for(int i = 1; i <= NoOfTimes; i += 1) {
+			j.noop();
+		}
+		long end = System.nanoTime();
+		System.out.println( (end - start) / NoOfTimes);
+	}
+}
Index: src/benchmark/mutex/fetch_add.c
===================================================================
--- src/benchmark/mutex/fetch_add.c	(revision 6aa537a4e23382dcd70067bf61863a8aa795cccb)
+++ src/benchmark/mutex/fetch_add.c	(revision 6aa537a4e23382dcd70067bf61863a8aa795cccb)
@@ -0,0 +1,22 @@
+#include <stdio.h>
+
+#include "bench.h"
+
+volatile int value;
+
+void __attribute__((noinline)) do_call() {
+	__atomic_add_fetch( &value, 1, __ATOMIC_SEQ_CST );
+	asm volatile ("");
+	__atomic_sub_fetch( &value, 1, __ATOMIC_SEQ_CST );
+}
+
+int main(int argc, char* argv[]) {
+	BENCH(
+		for (size_t i = 0; i < n; i++) {
+			do_call();
+		},
+		result
+	)
+
+	printf("%llu\n", result);
+}