State of Python 3.13 Performance: Free-Threading

Re:State of Python 3.13 Performance: Free-Threading by ijl on Tuesday November 05, 2024 @09:34AM (#42051733)

Performance for python3.14t alpha 1 is more like 3.11 in what I've tested. Not good enough if Python doesn't meet your needs, but this comes after 3.12 and 3.13 have both performed worse for me.

3.13t doesn't seem to have been meant for any serious use. Bugs in gc and so on are reported, and not all fixes will be backported apparently. And 3.14t still has unavoidable crashes. Just too early.

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Re:State of Python 3.13 Performance: Free-Threading by bastawhiz on Tuesday November 05, 2024 @12:32PM (#42053505)

> 3.13t doesn't seem to have been meant for any serious use.

I don't think anyone would suggest using it in production. The point was to put something usable out into the world so package maintainers could kick the tires and start working on building compatible versions. Now is exactly the time for weird bug reports! It's a thirty year old runtime and one of its oldest constraints is being removed!

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Re:State of Python 3.13 Performance: Free-Threading by kristianp on Thursday November 07, 2024 @05:44AM (#42075486)

> 3.12 and 3.13 have both performed worse for me

That's interesting, I wouldn't have expected performance regressions coming from those releases. How can that be?

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