STINNER Victor added the comment: > (however, a quick test suggests that PyUnicode_DecodeUTF8 is quite slower)
It's surprising that PyUnicode_DecodeUTF8() is quite slower than _PyUnicode_FromUCS1(). _PyUnicode_FromUCS1() calls ucs1lib_find_max_char() and then memcpy(). PyUnicode_DecodeUTF8() first tries ascii_decode() which is very similar than ucs1lib_find_max_char(). The difference is maybe that _PyUnicode_FromUCS1() copies all bytes at once (memcpy()), whereas ascii_decode() copies bytes while if the string is ASCII or not. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue19219> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
