add a string concatenation performance test

annevk · annevk · commit 6c980d6814f8 · 2006-12-25T21:11:06.000Z
--HG--
extra : convert_revision : svn%3Aacbfec75-9323-0410-a652-858a13e371e0/trunk%40344
diff --git a/tests/performance/concatenation.py b/tests/performance/concatenation.py
@@ -0,0 +1,32 @@
+from time import time
+
+x = "TEST"
+y = "TEST"
+z = "TEST"
+
+t = time()
+for i in xrange(1000000):
+    x += y + z
+    x = "TEST"
+print 'duration:', time()-t
+
+x = "TEST"
+t = time()
+for i in xrange(1000000):
+    x = x + y + z
+    x = "TEST"
+print 'duration:', time()-t
+
+x = "TEST"
+t = time()
+for i in xrange(1000000):
+    x = "".join((x, y, z))
+    x = "TEST"
+print 'duration:', time()-t
+
+x = "TEST"
+t = time()
+for i in xrange(1000000):
+    x = "%s%s%s" % (x, y, z)
+    x = "TEST"
+print 'duration:', time()-t
