bpo-40521: Make list free list per-interpreter #20642
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Each interpreter now has its own list free list: * Move list numfree and free_list into PyInterpreterState. * Add _Py_list_state structure. * Add tstate parameter to _PyList_ClearFreeList() and _PyList_Fini(). * Remove "#ifdef EXPERIMENTAL_ISOLATED_SUBINTERPRETERS". * _PyGC_Fini() clears gcstate->garbage list which can be stored in the list free list. Call _PyGC_Fini() before _PyList_Fini() to prevent leaking this list.
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Thanks to "./python -m test -j0 -R 3:3 test_capi test__xxsubinterpreters test_atexit test_threading", I found a leak. It's fixed as part of this PR: "Call _PyGC_Fini() before _PyList_Fini()". |
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Each interpreter now has its own list free list: * Move list numfree and free_list into PyInterpreterState. * Add _Py_list_state structure. * Add tstate parameter to _PyList_ClearFreeList() and _PyList_Fini(). * Remove "#ifdef EXPERIMENTAL_ISOLATED_SUBINTERPRETERS". * _PyGC_Fini() clears gcstate->garbage list which can be stored in the list free list. Call _PyGC_Fini() before _PyList_Fini() to prevent leaking this list.
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Each interpreter now has its own list free list:
and _PyList_Fini().
the list free list. Call _PyGC_Fini() before _PyList_Fini() to
prevent leaking this list.
https://bugs.python.org/issue40521