STINNER Victor <victor.stin...@gmail.com> added the comment: 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 ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue14249> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com