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xenonflash

HN member
Joined
Thu, Mar 28, 2013, 9:23 PM UTC
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26
Public activity
9 items

About xenonflash

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Recent public activity

  1. comment
    Comment #7849729

    Yes I'm assuming two's complement, but there's not a lot of hardware around these days that isn't two's complement. I'm writing a library for something that already assumes two's c…

  2. comment
    Comment #7848921

    He also picked one of the most trivial cases - unsigned addition. Signed data, especially signed multiplication, requires a lot more steps. I'm working on a set of numerical proble…

  3. comment
    Comment #6493181

    The Unladen Swallow project (faster Python, including an LLVM based JIT) found that LLVM wasn't really designed as a universal JIT compiler, or at least not one that was useful for…

  4. comment
    Comment #5950182

    Have a look at the lines starting at line 821 in the very file you referenced. I have quoted a bit of it here: "Computed GOTOs, or the-optimization-commonly-but-improperly-known-as…

  5. comment
    Comment #5949462

    Pystone isn't a performance benchmark, or at least it isn't a useful one. It's more of a regression test to see if anything has changed between versions. It's not useful as a perfo…

  6. comment
    Comment #5944549

    I don't think its correct to say the CPython is slow. What you can more accurately say about CPython is that the performance is highly variable. Some things are very fast, while ot…

  7. comment
    Comment #5944476

    It's also used in CPU intensive applications, but the "standard" numerical libraries (Numpy/SciPy) aren't distributed with the language standard libraries. However, they're FOSS, a…

  8. comment
    Comment #5944450

    If you don't have a lot of experience with Python you may not know how some of the "magic" parts actually work inside. Some of the things you can do however will end up allocating …

  9. comment
    Comment #5457781

    1) The Python version has some basic newbie coding errors. This sort of code is what Python programmers call "Java written in Python". It may be a valid algorithm in Java, but it's…