I think it is simple .net regex which is slower. I did the following: 1. Proved that asciidoc run under python (cygwin) evaluates the same regular expression as under ipy - there are no bugs which make ipy evaluate more REs 2. Captured the evaluated regular expressions in a form suitable for .net and python 3. Write trivial program in c# to evaluate captured REs. (6 seconds) 4. Write trivial program in python to evaluate captured REs (0.4s for python3.2 and 0.65s for python 2.7.5) I also got rid off ipy/c# quirks (extra named groups), to get functional equivalent and no conversion overhead - no change Number of captured REs is 46253. For this particular sample, cpython implementation if regular expression appears to be 12 times faster than .net implementation
--pawel On Wed, Apr 16, 2014 at 5:20 PM, Pawel Jasinski <pawel.jasin...@gmail.com>wrote: > hi, > > I have made an exercise of running asciidoc under ironpython > It turned out to be a performance disappointment. > Converting trivial document takes 30 seconds where cpython is done > under a second. > Can it be that asciidoc, which makes heavy use of regular expression, > exposes weak part of ironpython? > > Has anybody similar experience with applications using heavily re? > > Am I doing something wrong? > > > --pawel >
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