Sam Gross 3ea488aac4 gh-124218: Use per-thread refcounts for code objects (#125216) ...

Use per-thread refcounting for the reference from function objects to
their corresponding code object. This can be a source of contention when
frequently creating nested functions. Deferred refcounting alone isn't a
great fit here because these references are on the heap and may be
modified by other libraries.

2024-10-15 15:06:41 -04:00

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