diff --git a/buildconf/default.ini b/buildconf/default.ini
index b029d03c..609b961e 100644
--- a/buildconf/default.ini
+++ b/buildconf/default.ini
@@ -25,7 +25,7 @@ bin_name = uwsgi
 plugin_dir = .
 embedded_plugins = python, ping, cache, nagios, rpc, fastrouter, http, ugreen
 
-locking = flock
+locking = auto
 event = auto
 timer = auto
 filemonitor = auto
diff --git a/heavytest.ini b/heavytest.ini
index 94687ffa..e2c0e7d6 100644
--- a/heavytest.ini
+++ b/heavytest.ini
@@ -1,6 +1,6 @@
 [uwsgi]
 
-master = true
+;master = true
 processes = 4
 threads = 8
 
@@ -22,3 +22,6 @@ cache-blocksize = 98304
 
 
 log-micros = true
+
+module = heavytest
+mount = /cc=uwsgicc/__init__.py
diff --git a/heavytest.py b/heavytest.py
new file mode 100644
index 00000000..bcef7b6f
--- /dev/null
+++ b/heavytest.py
@@ -0,0 +1,14 @@
+import uwsgi
+import werkzeug.testapp
+
+uwsgi.cache_set("/cache/get", "HTTP 1.1 200 OK\r\nContent-Type: text/html\r\n\r\n<h1>I am the uWSGI cache</h1>")
+
+def app001(env, start_response):
+    start_response('200 OK', [('Content-Type', 'text/html')])
+    return "PATH_INFO=%s" % env['PATH_INFO']
+
+def app002(env, start_response):
+    start_response('200 OK', [('Content-Type', 'text/html')])
+    return "requests: %d" % uwsgi.total_requests()
+
+uwsgi.applications = { '':werkzeug.testapp.test_app, '/app001':app001, '/app002':app002 }