diff --git a/trove/tests/unittests/trove_testtools.py b/trove/tests/unittests/trove_testtools.py
index 97d7899..9447537 100644
--- a/trove/tests/unittests/trove_testtools.py
+++ b/trove/tests/unittests/trove_testtools.py
@@ -19,11 +19,18 @@ import mock
 import os
 import sys
 import testtools
+import time
 
 from trove.common.context import TroveContext
 from trove.common.notification import DBaaSAPINotification
 from trove.tests import root_logger
 
+import atexit
+TIME_LOST_IN_DETECTION = 0.0
+def goodbye():
+    print("Time lost in detection: %.1f sec" % TIME_LOST_IN_DETECTION)
+atexit.register(goodbye)
+
 
 def patch_notifier(test_case):
     notification_notify = mock.patch.object(
@@ -117,10 +124,14 @@ class TestCase(testtools.TestCase):
             self.fail(self._NEWLINE + self._NEWLINE.join(messages))
 
     def _find_mock_refs(self):
+        global TIME_LOST_IN_DETECTION
+        start = time.time()
         discovered_mocks = set()
         for module_name, module in self._get_loaded_modules().items():
             self._find_mocks(module_name, module, discovered_mocks, 1)
 
+        dt = time.time() - start
+        TIME_LOST_IN_DETECTION += dt
         return discovered_mocks
 
     def _find_mocks(self, parent_name, parent, container, depth):