New submission from Fredrik Johansson <[EMAIL PROTECTED]>: On my laptop (Windows XP, 32-bit), long division is about 15% slower in 2.6 compared to 2.5. See the attached .txt for timings.
I noticed this when comparing the unit tests for mpmath (http://code.google.com/p/mpmath/) under 2.5 and 2.6. It appears that most tests run 10-20% faster under 2.6 (good work all Python developers!), but the tests performing very high precision arithmetic run noticeably slower. >From some quick benchmarking, addition and multiplication are not the culprits (they both actually seem to be quite a bit faster in 2.6). There could be other factors involved, but from what I've found out so far, it is only division that has become slower in 2.6. Division in Python 2.4 is also the same speed as 2.5. ---------- components: Interpreter Core files: division_speed.txt messages: 74798 nosy: fredrikj severity: normal status: open title: Performance regression in long division in 2.6 versions: Python 2.6 Added file: http://bugs.python.org/file11804/division_speed.txt _______________________________________ Python tracker <[EMAIL PROTECTED]> <http://bugs.python.org/issue4128> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
