Hello all, I've read the PyPy EU report on the CLI backend. Most of it is experimental and interesting, but hard to see how it is directly immediately useful.
If I understand the GenCLI backend correctly though, it may be of interest to this list. IIUC, GenCLI takes RPython code and compiles to IL - with native .NET classes for classes defined in RPython. In PyPy, this is used to translate PyPy itself to provide a Python interpreter on top of .NET (unlike IronPython which is a compiler). (RPython is a static subset of Python - all RPython code is valid Python code, but not vice-versa.) If I'm right, then RPython could be used to compile native .NET assemblies, which of course could be used from IronPython. This may be a preferable optimisation route than dropping down into C# where extra speed is needed. When benchmarking performance of GenCLI (and PyPy), this is the figures they came up with for an implementation of the classical Martin Richards’s benchmark : Implementation Result richards-c# 7.093 richards-gencli 13.312 CPython richards.py 1139.632 IronPython richards.py 1751.246 pypy-cli richards.py (built-in) 5952.501 pypy-cli richards.py 12010.541 As you can see, gen-cli code is not much slower than C#. All the best, Michael Foord http://www.voidspace.org.uk/ironpython/ _______________________________________________ users mailing list [email protected] http://lists.ironpython.com/listinfo.cgi/users-ironpython.com
