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| author | Eddie Elizondo <eduardo.elizondorueda@gmail.com> | 2023-04-22 19:39:37 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-04-22 19:39:37 (GMT) |
| commit | ea2c0016502472aa8baa3149050ada776d17a009 (patch) | |
| tree | e9e3935a9b71a1f88ac18c24fe512d199880ff90 /Misc | |
| parent | 916de04fd1838530096336aadb3b94b774ed6c90 (diff) | |
| download | cpython-ea2c0016502472aa8baa3149050ada776d17a009.zip cpython-ea2c0016502472aa8baa3149050ada776d17a009.tar.gz cpython-ea2c0016502472aa8baa3149050ada776d17a009.tar.bz2 | |
gh-84436: Implement Immortal Objects (gh-19474)
This is the implementation of PEP683
Motivation:
The PR introduces the ability to immortalize instances in CPython which bypasses reference counting. Tagging objects as immortal allows up to skip certain operations when we know that the object will be around for the entire execution of the runtime.
Note that this by itself will bring a performance regression to the runtime due to the extra reference count checks. However, this brings the ability of having truly immutable objects that are useful in other contexts such as immutable data sharing between sub-interpreters.
Diffstat (limited to 'Misc')
| -rw-r--r-- | Misc/NEWS.d/next/Core and Builtins/2023-04-02-22-14-57.gh-issue-84436.hvMgwF.rst | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Misc/NEWS.d/next/Core and Builtins/2023-04-02-22-14-57.gh-issue-84436.hvMgwF.rst b/Misc/NEWS.d/next/Core and Builtins/2023-04-02-22-14-57.gh-issue-84436.hvMgwF.rst new file mode 100644 index 0000000..c4d8ce7 --- /dev/null +++ b/Misc/NEWS.d/next/Core and Builtins/2023-04-02-22-14-57.gh-issue-84436.hvMgwF.rst @@ -0,0 +1,3 @@ +The implementation of PEP-683 which adds Immortal Objects by using a fixed +reference count that skips reference counting to make objects truly +immutable. |