Xiang Zhang added the comment: There seems no significant regression in performance. A microbenchmark against nu_longlong:
./python3 -m perf timeit --duplicate=1000 --compare-to /home/angwer/repos/cpython/python -s 'import struct; p = struct.Struct("@L")' 'p.unpack(b"d\x00\x00\x00\x00\x00\x00\x00")' python: ..................... 156 ns +- 10 ns python3: ..................... 157 ns +- 9 ns Median +- std dev: [python] 156 ns +- 10 ns -> [python3] 157 ns +- 9 ns: 1.01x slower Not significant! ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue30224> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com