diff --git a/uasyncio/benchmark/test-ab-light.sh b/uasyncio/benchmark/test-ab-light.sh
index bf929862..383f1aa0 100755
--- a/uasyncio/benchmark/test-ab-light.sh
+++ b/uasyncio/benchmark/test-ab-light.sh
@@ -4,7 +4,12 @@
 # Apache Bench (ab).
 #
 
-micropython -O test_http_server_light.py &
+#python3.4.2 test_http_server_light.py &
+#micropython -O test_http_server_light.py &
+
+#python3.4.2 test_http_server_medium.py &
+micropython -O -X heapsize=200wK test_http_server_medium.py &
+
 sleep 1
 
 ab -n10000 -c100 http://localhost:8081/