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GH-148189: Fix miscalculation of type-specific free list memory use #148190

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GH-148189: Fix miscalculation of type-specific free list memory use #148190

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6eb4ec8
Fix calculation of PyListObject size in allocator
MazinSharaf Apr 7, 2026
8dfae59
Fix size calculation in _PyDict_DebugMallocStats
MazinSharaf Apr 7, 2026
71e8db7
Fix memory size calculation in tupleobject.c
MazinSharaf Apr 7, 2026
47e841a
Revert in tupleobject.c
MazinSharaf Apr 8, 2026
9abeba7
📜🤖 Added by blurb_it.
blurb-it[bot] Apr 8, 2026
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2 changes: 1 addition & 1 deletion Objects/dictobject.c
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Original file line number Diff line number Diff line change
Expand Up @@ -443,7 +443,7 @@ _PyDict_DebugMallocStats(FILE *out)
{
_PyDebugAllocatorStats(out, "free PyDictObject",
_Py_FREELIST_SIZE(dicts),
sizeof(PyDictObject));
_PyType_PreHeaderSize(&PyDict_Type) + sizeof(PyDictObject));
_PyDebugAllocatorStats(out, "free PyDictKeysObject",
_Py_FREELIST_SIZE(dictkeys),
sizeof(PyDictKeysObject));
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2 changes: 1 addition & 1 deletion Objects/listobject.c
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Expand Up @@ -234,7 +234,7 @@ _PyList_DebugMallocStats(FILE *out)
_PyDebugAllocatorStats(out,
"free PyListObject",
_Py_FREELIST_SIZE(lists),
sizeof(PyListObject));
_PyType_PreHeaderSize(&PyList_Type) + sizeof(PyListObject));
}

PyObject *
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