[BLOG] Add 'one year of free-threaded Python' post #916
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The performance optimizations to the free-threaded GC are noteworthy, IMHO. The free-threaded build uses it's own cyclic GC implementation. I added two optimizations to the collection process in 3.14: mark-alive pass and pre-fetching (used only within mark-alive pass). Times below are from my "gc_big_tree.py" benchmark. The performance benefit will depend on the workload and this benchmark is kind of a best case scenario (large and complex object graph, causing traversal to visit many scattered locations in memory).
It was a small piece of code but the deferring of full collections also can give a significant speedup. On the toy list append benchmark in the issue, it makes it run 10 times faster (0.2 seconds vs 2 seconds). |
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Thanks @ngoldbaum! Looks good! I left some comments inline.
Also, one "bigger" suggestion: Could we may be more succinct in describing what free-threaded Python is? There's loads of resources on that everywhere and I'm not sure we should be iterating that here. I think it'd be best if we only provided a very very high-level overview (effectively before: GIL was protecting us, now: it isn't) and then link to one of those resources, maybe even @rgommers's blog post from last year.
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I threw in an image from the talk but I don't think it looks very good in the blog. Would very much appreciate alternate suggestions for graphics. |
How about adding one of graphs I posted about scaling asyncio across threads? The blogpost mentions scaling of asyncio so adding that would be good to have. |
Thanks for the suggestion. I ended up going with a bit of AI-generated art - I felt like having graphs at the top of the post would distract a bit. We should highlight your work on asyncio in its own blog post IMO. |
Apply suggestions from code review Co-authored-by: gabalafou <[email protected]> Co-authored-by: Lysandros Nikolaou <[email protected]> respond to review, add image add link to PyCon abstract use a different image and add link to meta blog post use a smaller image
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Co-authored-by: Lysandros Nikolaou <[email protected]>
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Thanks @ngoldbaum & all reviewers! This looks about ready to go. I pushed some minor editorial edits, and there's one larger thing that deserves some attention: it's important to not claim too much of the credit and say "we have ...." unless it was actually us. I made two suggested edits that should address this. I think we've done something like 50% of all the heavy lifting over the past year on widely used OSS packages, so let's recognize that other half.
Co-authored-by: Ralf Gommers <[email protected]>
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Done, thanks for the dose of humility! |
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Add a blog post describing the work from the nogil team over the past year.
Suggestions for header images to go with this are very appreciated, along with review of the text.
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