Message157567
Result of the benchmark before/after my commit. I prefer an unit over manually manipulate long as short or bytes, because I think that the compiler knows better how to optimize operations on integers.
unpatched:
$ ./python -m timeit -s 'import codecs; d = codecs.utf_16_be_decode; x = (" " * 1000).encode("utf-16be")' 'd(x)'
100000 loops, best of 3: 4.64 usec per loop
$ ./python -m timeit -s 'import codecs; d = codecs.utf_16_be_decode; x = ("\u263A" * 1000).encode("utf-16be")' 'd(x)'
100000 loops, best of 3: 5.87 usec per loop
patched:
$ ./python -m timeit -s 'import codecs; d = codecs.utf_16_be_decode; x = (" " * 1000).encode("utf-16be")' 'd(x)'
100000 loops, best of 3: 3.53 usec per loop
$ ./python -m timeit -s 'import codecs; d = codecs.utf_16_be_decode; x = ("\u263A" * 1000).encode("utf-16be")' 'd(x)'
100000 loops, best of 3: 4.85 usec per loop |
|
Date |
User |
Action |
Args |
2012-04-05 11:46:02 | vstinner | set | recipients:
+ vstinner, pitrou, benjamin.peterson, skrah, python-dev, serhiy.storchaka |
2012-04-05 11:46:02 | vstinner | set | messageid: <1333626362.64.0.885314348503.issue14249@psf.upfronthosting.co.za> |
2012-04-05 11:46:02 | vstinner | link | issue14249 messages |
2012-04-05 11:46:01 | vstinner | create | |
|