diff --git a/performance/lorenz.hpp b/performance/lorenz.hpp
new file mode 100644
index 0000000..c1ea37c
--- /dev/null
+++ b/performance/lorenz.hpp
@@ -0,0 +1,33 @@
+/*
+ * lorenz.hpp
+ *
+ * Copyright 2011 Mario Mulansky
+ * Copyright 2012 Karsten Ahnert
+ *
+ * Distributed under the Boost Software License, Version 1.0.
+ * (See accompanying file LICENSE_1_0.txt or
+ * copy at http://www.boost.org/LICENSE_1_0.txt)
+ */
+
+
+#ifndef LORENZ_HPP_
+#define LORENZ_HPP_
+
+#include <boost/array.hpp>
+
+struct lorenz
+{
+    template< class state_type >
+    void inline operator()( const state_type &x , state_type &dxdt , const double t ) const
+    {
+        const double sigma = 10.0;
+        const double R = 28.0;
+        const double b = 8.0 / 3.0;
+        dxdt[0] = sigma * ( x[1] - x[0] );
+        dxdt[1] = R * x[0] - x[1] - x[0] * x[2];
+        dxdt[2] = x[0]*x[1] - b * x[2];
+    }
+};
+
+
+#endif /* LORENZ_HPP_ */