luajit-remake VS Iron python

It's really cool that Haoran Xu copy-and-patch technique is catching on, I remember discovering it through his blog posts on applying these techniques to his own LuaJIT remake project[0][1] (and I probably found those through a post here). I highly recommend them if you're into that sort of thing, BTW. They're incredible deep dives, but he uses the details-element to keep the metaphorical descents into Mariana Trench optional so it doesn't get too overwhelming.

I even had the privilege of congratulating him the 1000th star of the GH repo[2], where he reassured me and others that he's still working on it despite the long pause after the last blog post, and that this mainly has to do with behind-the-scenes rewrites that make no sense to publish in part.

[0] https://sillycross.github.io/2022/11/22/2022-11-22/

[1] https://sillycross.github.io/2023/05/12/2023-05-12/

[2] https://github.com/luajit-remake/luajit-remake/issues/11

This seems like an awesome way of writing faster interpreters – i.e. not in assembly, but in C++ snippets you stitch together with a tool.

I did peek at the deegen tool a bit, and it seems quite large? https://github.com/luajit-remake/luajit-remake/tree/master/d...

I would be interested in an overview of all the analysis it has to do, which as I understand is basically “automated Mike Pall”

FWIW I think this is the hand-written equivalent with LuaJIT’s dynasm tool: https://github.com/LuaJIT/LuaJIT/blob/v2.1/src/vm_x64.dasc (just under 5000 lines)

Also there are several of these files with no apparent sharing, as you would get with deegen:

https://github.com/LuaJIT/LuaJIT/blob/v2.1/src/vm_x86.dasc

https://github.com/LuaJIT/LuaJIT/blob/v2.1/src/vm_ppc.dasc

If you're interested in learning more about the challenges and tradeoffs, both Jython (https://www.jython.org/) and IronPython (https://ironpython.net/) have been around for a long time and there's a lot of reading material on that subject.

There are several ways of bypassing the GIL. First of all, the GIL is only present in the C implementation of Python, CPython. Other implementations of Python like Jython, IronPython, and PyPy don't have the GIL. Additionally, Python provides the multiprocessing library, which allows for parallelism in your Python program.

I am not set on .NET, but just curious, so thanks for the suggestions. Interesting that it's billed as cross-plaform, but doesn't do it that well. I just searched 'python wrapper for .net' and found PythonNET. Also, it seems yes IronPython is active.

You mean like this?

In that case, I think it's enough if you go here, then download and install the MSI file: https://github.com/IronLanguages/ironpython2/releases/tag/ipy-2.7.12

There are quite a lot of ways to run scripting languages in C#. I've no idea what JSR223 is but .NET has DLR for example. There are also multiple libraries: IronPython, NLua, Jint and Jurassic for Javascript. There's also older version of CS-Script working with .NET Framework.

But does it Microsoft python https://ironpython.net

If you need control over how the script runs, access to variables etc, I can highly recommend IronPython, but it might be overkill for what you need.