Index: benchmark/mutex/upp.cc
===================================================================
--- benchmark/mutex/upp.cc	(revision 90152a4860529aff7214be01cd22abd37012cd19)
+++ benchmark/mutex/upp.cc	(revision 90152a4860529aff7214be01cd22abd37012cd19)
@@ -0,0 +1,20 @@
+#include <cstdio>
+
+#include "bench.h"
+
+_Monitor MyMonitor {
+public:
+	void __attribute__((noinline)) call() {}
+};
+
+int main(int argc, char* argv[]) {
+	MyMonitor m;
+	BENCH(
+		for (size_t i = 0; i < n; i++) {
+			m.call();
+		},
+		result
+	)
+
+	printf("%llu\n", result);
+}