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Comment by roschdal | Hacker News Reader

How can Python 3.11 be 60% faster than 3.10?

The table of “Specializing Adaptive Interpreter” changes are interesting: https://docs.python.org/3.11/whatsnew/3.11.html#pep-659-spec...

That's the best link. Scroll up too, the sections just above are significant too.

Up to 60%. In average 25% on pyperformance which is another benchmark. See the faster cpython work, it's not a JIT but plenty of other easier optimizations

I think this is where they introduce the JIT (Guido and co are working on this at Microsoft) or add JIT optimizations.

Apparently the JIT won't be introduced in 3.11 and these speed gains are due to other optimisations [0].

> Q: Is there a JIT compiler?

> A: No. We’re still exploring other optimizations.

[0]: https://docs.python.org/3.11/whatsnew/3.11.html#faster-cpyth...

You're right. My mistake. Thanks for the link!

Mark Shannon and co.

And 3.10 is already 25% faster than 3.8

And because of my choice of OS I'm stuck with Python 3.8. Thanks so much Python!

Which OS prevents you from installing another python runtime?

I install python using asdf on both MacOS and various flavours of Linux.

https://asdf-vm.com/

It could be even more, but cpython (being the reference implementation) has been kept simple.

PyPy manages far more.

I'd take the official claims and benchmarks with a huge dose of skepticism. Python is no longer a free software project. The infrastructure is censored and dissent is suppressed ruthlessly.

The entire ecosystem is great at marketing. Critical people like Armin Ronacher have left long ago.

I'd like to see truly independent benchmarks from unbiased or critical outsiders. But in general those do not have any interest in Python.

> Python is no longer a free software project. The infrastructure is censored and dissent is suppressed ruthlessly.

Those are serious allegations. Can you back up these claims?

Walrus operator…

I’m kidding of course but that seems like the camel who broke the bridge too far.

Can you suggest an alternative? (not perl)

If you change programming languages based on random comments from loonies on the internet, I don't think you're ever going to stick with a language long enough to implement hello world...

Sure it's a highly productive language with an enormous variety of quality libraries available, but uh, some guy on the internet doesn't like the developers or something.

I don't see how you can suggest you have a deep understanding of Python's infrastructure while concurrently not being aware of any unbiased benchmarks from critical outsiders.

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