Remove deferred reference count increments and make the global reference pool optional#4095

Merged

adamreichold merged 10 commits intomainfrom opt-ref-pool

May 11, 2024

+226-240

Commits on May 11, 2024

Add feature controlling the global reference pool to enable avoiding its overhead.
adamreichold
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Document reference-pool feature in the performance guide.
adamreichold
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Invert semantics of feature to disable reference pool so the new behaviour becomes opt-in
adamreichold
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Remove delayed reference count increments as we cannot prevent reference count errors as long as these are available
adamreichold
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Adjust tests to be compatible with disable-reference-pool feature
adamreichold
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Adjust tests to be compatible with py-clone feature
adamreichold
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Adjust the GIL benchmark to the updated reference pool semantics.
adamreichold
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Further extend and clarify the documentation of the py-clone and disable-reference-pool features
adamreichold
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Replace disable-reference-pool feature by pyo3_disable_reference_pool conditional compilation flag
adamreichold
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Add pyo3_leak_on_drop_without_reference_pool to turn aborts into leaks when the global reference pool is disabled and the GIL is not held
adamreichold
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