[Python-Dev] Re: PEP 683: "Immortal Objects, Using a Fixed Refcount"

2022年2月16日 13:45:24 -0800

On 2/15/2022 7:10 PM, Eric Snow wrote:
* the naive implementation shows a 4% slowdown
Without understanding all the benefits, this seems a bit too much for me. 2% would be much better.
* we have a number of strategies that should reduce that penalty
I would like to see that before approving the PEP.
* without immortal objects, the implementation for per-interpreter GIL
will require a number of non-trivial workarounds
To me, that says to speed up immortality first.
That last one is particularly meaningful to me since it means we would
definitely miss the 3.11 feature freeze.
3 1/2 months from now.
With immortal objects, 3.11 would still be in reach.
Is it worth trying to rush it a bit?
--
Terry Jan Reedy
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