diff --git a/README.md b/README.md
index aa2e5a9..7833c02 100644
--- a/README.md
+++ b/README.md
@@ -62,6 +62,10 @@ When you want to see whats happening do a debug run;
 	debug run real msx speed;
 		time MB_OPENMSX_RENDERER=SDL MB_OPENMSX_THROTTLE=ON MB_OPENMSX_SPEED=100 make clean assert-all
 		real    1m44.184s
+		
+	parallel run;
+		time make -j2 clean assert-all
+		real    0m0.358s
 
 ## Functions