On Sun, 02 Sep 2012 11:58:08 -0700, wxjmfauth wrote: > - Unfortunately, I got opposite and even much worst results on my win > box, considering > - libfrancais is one of my module and it does a little bit more than the > std sorting tools.
How do we know that the problem isn't in your module? > My rationale: very simple. > > 1) I never heard about something better than sticking with one of the > Unicode coding scheme. (genreral theory) Your ignorance is not a good reason for abandoning a powerful software technique. 2) I am not at all convinced by > the "new" Py 3.3 algorithm. I'm not the only one guy, who noticed > problems. That's nice. Nobody has yet displayed genuine performance problems, only artificial and platform-dependent slowdowns that are insignificant in practice. If you can demonstrate genuine problems, people will be interested in fixing them. Let me be frank: nobody gives a damn if, for some rare circumstances, some_string.replace(another_string) takes 0.3μs instead of 0.1μs. Overall, considering multiple platforms and dozens of different string operations, PEP 393 is a big win: - many operations are faster - a few operations are a LOT faster - but a very few operations are sometimes slower - many strings will use less memory - sometimes a LOT less memory - no more distinction between wide and narrow builds - characters in the supplementary planes are now, for the first time in Python, treated correctly by default That's six wins versus one loss. > Arguing, "it is fast enough", is not a correct answer. It is *exactly* the correct answer. Nobody is going to revert this just because your script now runs in 5.7ms instead of 5.2ms. Who cares? If you are *seriously* interested in debugging why string code is slower for you, you can start by running the full suite of Python string benchmarks: see the stringbench benchmark in the Tools directory of source installations, or see here: http://hg.python.org/cpython/file/8ff2f4634ed8/Tools/stringbench -- Steven -- http://mail.python.org/mailman/listinfo/python-list
