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Archive for May, 2009

IronPython hammers CPython when not mutating class attributes

May 22nd, 2009 Robert Smallshire 6 comments

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Earlier today I posted the second article in what is turning out to be a short series in the investigation into why the performance of IronPython is around 100× slower than CPython, when running the front-end of my OWL BASIC compiler.
The most informative comment was [...]

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Categories: .NET, IronPython, Jython, Python, computing, software Tags:

IronPython 2.0 and Jython 2.5 performance compared to Python 2.5

IronPython 2.0 can be hundreds of times slower than CPython on some microbenchmarks. Jython 2.5 can scale better than CPython on those same benchmarks.

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Dismal performance with IronPython

May 17th, 2009 Robert Smallshire 2 comments

IronPython can be slow – 10x to 100x slower than CPython on real-world code and it has been observed to be up to 6000x slower.

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