diff --git a/example/speed_test.cc b/example/speed_test.cc
index b8fb7ab1..e085c945 100644
--- a/example/speed_test.cc
+++ b/example/speed_test.cc
@@ -60,86 +60,8 @@ void test_map_pack_unpack() {
 	std::cout << "Convert finished..." << std::endl;
 }
 
-template <typename T, std::size_t level>
-struct vecvec {
-	typedef std::vector<typename vecvec<T, level - 1>::type> type;
-	static void fill(type& v, std::size_t num_of_elems, T const& val) {
-		for (int elem = 0; elem < num_of_elems; ++elem) {
-			typename vecvec<T, level - 1>::type child;
-			vecvec<T, level - 1>::fill(child, num_of_elems, val);
-			v.push_back(child);
-		}
-	}
-};
-
-template <typename T>
-struct vecvec<T, 0> {
-	typedef std::vector<T> type;
-	static void fill(type& v, std::size_t num_of_elems, T const& val) {
-		for (int elem = 0; elem < num_of_elems; ++elem) {
-			v.push_back(val);
-		}
-	}
-};
-
-void test_array_of_array() {
-	std::cout << "[TEST][array_of_array]" << std::endl;
-	// setup
-	int const depth = 16;
-	std::cout << "Setting up array data..." << std::endl;
-	typename vecvec<int, depth>::type v1;
-	vecvec<int, depth>::fill(v1, 3, 42);
-
-	std::cout << "Start packing..." << std::endl;
-	std::stringstream buffer;
-	{
-		boost::timer::cpu_timer timer;
-		msgpack::pack(buffer, v1);
-		std::string result = timer.format();
-		std::cout << result << std::endl;
-	}
-	std::cout << "Pack finished..." << std::endl;
-
-	buffer.seekg(0);
-	std::string str(buffer.str());
-
-	// deserialized object is valid during the msgpack::zone instance alive.
-	msgpack::zone mempool;
-	msgpack::object deserialized;
-	std::cout << "Start unpacking..." << std::endl;
-	{
-		boost::timer::cpu_timer timer;
-		msgpack::unpack(str.data(), str.size(), NULL, &mempool, &deserialized);
-		std::string result = timer.format();
-		std::cout << result << std::endl;
-	}
-	std::cout << "Unpack finished..." << std::endl;
-
-	msgpack::unpacked unpacked;
-	std::cout << "Start unpacking...by void unpack(unpacked* result, const char* data, size_t len, size_t* offset = NULL)" << std::endl;
-	{
-		boost::timer::cpu_timer timer;
-		msgpack::unpack(&unpacked, str.data(), str.size());
-		std::string result = timer.format();
-		std::cout << result << std::endl;
-	}
-	std::cout << "Unpack finished..." << std::endl;
-	typename vecvec<int, depth>::type v2;
-	std::cout << "Start converting..." << std::endl;
-	{
-		boost::timer::cpu_timer timer;
-		deserialized.convert(&v2);
-		std::string result = timer.format();
-		std::cout << result << std::endl;
-	}
-	std::cout << "Convert finished..." << std::endl;
-}
-
-
-
 int main(void)
 {
 	test_map_pack_unpack();
-	test_array_of_array();
 }
 
diff --git a/example/speed_test_nested_array.cc b/example/speed_test_nested_array.cc
new file mode 100644
index 00000000..714ead3b
--- /dev/null
+++ b/example/speed_test_nested_array.cc
@@ -0,0 +1,90 @@
+// g++ -std=c++11 -O3 -g -Ipath_to_msgpack_src -Ipath_to_boost speed_test.cc -Lpath_to_boost_lib -lboost_timer -lboost_system
+// export LD_LIBRARY_PATH=path_to_boost_lib
+
+#include <msgpack.hpp>
+#include <string>
+#include <iostream>
+#include <sstream>
+#include <vector>
+#include <boost/timer/timer.hpp>
+
+template <typename T, std::size_t level>
+struct vecvec {
+	typedef std::vector<typename vecvec<T, level - 1>::type> type;
+	static void fill(type& v, std::size_t num_of_elems, T const& val) {
+		for (int elem = 0; elem < num_of_elems; ++elem) {
+			typename vecvec<T, level - 1>::type child;
+			vecvec<T, level - 1>::fill(child, num_of_elems, val);
+			v.push_back(child);
+		}
+	}
+};
+
+template <typename T>
+struct vecvec<T, 0> {
+	typedef std::vector<T> type;
+	static void fill(type& v, std::size_t num_of_elems, T const& val) {
+		for (int elem = 0; elem < num_of_elems; ++elem) {
+			v.push_back(val);
+		}
+	}
+};
+
+void test_array_of_array() {
+	std::cout << "[TEST][array_of_array]" << std::endl;
+	// setup
+	int const depth = 16;
+	std::cout << "Setting up array data..." << std::endl;
+	typename vecvec<int, depth>::type v1;
+	vecvec<int, depth>::fill(v1, 3, 42);
+
+	std::cout << "Start packing..." << std::endl;
+	std::stringstream buffer;
+	{
+		boost::timer::cpu_timer timer;
+		msgpack::pack(buffer, v1);
+		std::string result = timer.format();
+		std::cout << result << std::endl;
+	}
+	std::cout << "Pack finished..." << std::endl;
+
+	buffer.seekg(0);
+	std::string str(buffer.str());
+
+	// deserialized object is valid during the msgpack::zone instance alive.
+	msgpack::zone mempool;
+	msgpack::object deserialized;
+	std::cout << "Start unpacking..." << std::endl;
+	{
+		boost::timer::cpu_timer timer;
+		msgpack::unpack(str.data(), str.size(), NULL, &mempool, &deserialized);
+		std::string result = timer.format();
+		std::cout << result << std::endl;
+	}
+	std::cout << "Unpack finished..." << std::endl;
+
+	msgpack::unpacked unpacked;
+	std::cout << "Start unpacking...by void unpack(unpacked* result, const char* data, size_t len, size_t* offset = NULL)" << std::endl;
+	{
+		boost::timer::cpu_timer timer;
+		msgpack::unpack(&unpacked, str.data(), str.size());
+		std::string result = timer.format();
+		std::cout << result << std::endl;
+	}
+	std::cout << "Unpack finished..." << std::endl;
+	typename vecvec<int, depth>::type v2;
+	std::cout << "Start converting..." << std::endl;
+	{
+		boost::timer::cpu_timer timer;
+		deserialized.convert(&v2);
+		std::string result = timer.format();
+		std::cout << result << std::endl;
+	}
+	std::cout << "Convert finished..." << std::endl;
+}
+
+int main(void)
+{
+	test_array_of_array();
+}
+