adding a small bench script to see where time is spend in the hook architecture

--HG--
branch : trunk

bench/bench.py

@@ -0,0 +1,9 @@
+
+import cProfile
+import py
+import pstats
+stats = cProfile.run('py.test.cmdline.main(["empty.py"])', 'prof')
+p = pstats.Stats("prof")
+p.strip_dirs()
+p.sort_stats('cumulative')
+print p.print_stats(30)

bench/empty.py

@@ -0,0 +1,3 @@
+
+for i in range(1000):
+    exec "def test_func_%d(): pass" % i