On Sun, 19 Aug 2012 18:03:34 +0100, Blind Anagram wrote: > "Steven D'Aprano" wrote in message > news:502f8a2a$0$29978$c3e8da3$54964...@news.astraweb.com... > > > If you can consistently replicate a 100% to 1000% slowdown in string > > handling, please report it as a performance bug: > > > > http://bugs.python.org/ > > > > Don't forget to report your operating system.
[...] > This is an average slowdown by a factor of close to 2.3 on 3.3 when > compared with 3.2. > > I am not posting this to perpetuate this thread but simply to ask > whether, as you suggest, I should report this as a possible problem with > the beta? Possibly, if it is consistent and non-trivial. Serious performance regressions are bugs. Trivial ones, not so much. Thanks to Terry Reedy, who has already asked the Python Devs about this issue, they have made it clear that they aren't hugely interested in micro-benchmarks in isolation. If you want the bug report to be taken seriously, you would need to run the full Python string benchmark. The results of that would be interesting to see. -- Steven -- http://mail.python.org/mailman/listinfo/python-list