[Python-checkins] r45918 - sandbox/trunk/sio/bench_cat.py

[guido.van.rossum]

Author: guido.van.rossum
Date: Sat May  6 02:29:30 2006
New Revision: 45918

Modified:
   sandbox/trunk/sio/bench_cat.py
Log:
Add more benchmarks.  We now compare str and bytes, for the join and += idioms.
Conclusion: bytes win; and join wins.  bytes+= is slower than str.join but not
all that much.


Modified: sandbox/trunk/sio/bench_cat.py
==============================================================================
--- sandbox/trunk/sio/bench_cat.py	(original)
+++ sandbox/trunk/sio/bench_cat.py	Sat May  6 02:29:30 2006
@@ -13,8 +13,16 @@
 
     timer = timeit.Timer("bbb = bytes()\nfor b in byteses: bbb += b",
                          "from __main__ import strings, byteses")
-    print "byteses %.3f" % min(timer.repeat(3, 10))
+    print "bytes+=    %.3f" % min(timer.repeat(3, 10))
+
+    timer = timeit.Timer("bbb = bytes.join(byteses)",
+                         "from __main__ import strings, byteses")
+    print "bytes.join %.3f" % min(timer.repeat(3, 10))
+
+    timer = timeit.Timer("sss = ''\nfor s in strings: sss += s",
+                         "from __main__ import strings, byteses")
+    print "str+=      %.3f" % min(timer.repeat(3, 10))
 
     timer = timeit.Timer("sss = ''.join(strings)",
                          "from __main__ import strings, byteses")
-    print "strings %.3f" % min(timer.repeat(3, 10))
+    print "str.join   %.3f" % min(timer.repeat(3, 10))