diff -r 0a3cc351d718 -r 0adc2c0a0792 contrib/perf.py
--- a/contrib/perf.py	Fri Nov 23 02:08:01 2018 +0100
+++ b/contrib/perf.py	Thu Nov 22 23:48:44 2018 +0100
@@ -276,6 +276,8 @@
     return functools.partial(_timer, fm, displayall=displayall), fm
 
 def stub_timer(fm, func, setup=None, title=None):
+    if setup is not None:
+        setup()
     func()
 
 @contextlib.contextmanager