diff --git a/src/Ui/UiRequest.py b/src/Ui/UiRequest.py
index 04c77599..1fffa890 100644
--- a/src/Ui/UiRequest.py
+++ b/src/Ui/UiRequest.py
@@ -637,10 +637,12 @@ class UiRequest(object):
         sites = self.server.sites
         main = sys.modules["main"]
 
-        def bench(code, times=100):
+        def bench(code, times=100, init=None):
             sites = self.server.sites
             main = sys.modules["main"]
             s = time.time()
+            if init:
+                exec(init, globals(), locals())
             for _ in range(times):
                 back = eval(code, globals(), locals())
             return ["%s run: %.3fs" % (times, time.time() - s), back]