Giovanni Bajo added the comment: Il giorno 02/gen/2013, alle ore 19:51, Christian Heimes <rep...@bugs.python.org> ha scritto:
> > Christian Heimes added the comment: > > Giovanni, why do you think that hashing of unicode strings is slower than > byte strings? > > First of all ASCII only unicode strings are packed and use just one byte per > char. CPython's FNV implementation processes one element in each cycle, that > is one byte for bytes and ASCII unicode, two bytes for UCS-2 and four bytes > for UCS-4. Bytes and UCS-4 strings require the same amount of CPU > instructions. Ah sorry, I stand corrected (though packing wasn't there in 3.0, was it? I was specifically referred to the 2.x -> 3.0 transition). -- Giovanni Bajo My Blog: http://giovanni.bajo.it ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue14621> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
