[3.14] gh-145779: Improve classmethod/staticmethod scaling in free-threaded build (gh-145826)#146088
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…ree-threaded build (python#145826) Add special cases for classmethod and staticmethod descriptors in _PyObject_GetMethodStackRef() to avoid calling tp_descr_get, which avoids reference count contention on the bound method and underlying callable. This improves scaling when calling classmethods and staticmethods from multiple threads. Also refactor method_vectorcall in classobject.c into a new _PyObject_VectorcallPrepend() helper so that it can be used by PyObject_VectorcallMethod as well. (cherry picked from commit e0f7c10)
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Add special cases for classmethod and staticmethod descriptors in _PyObject_GetMethodStackRef() to avoid calling tp_descr_get, which avoids reference count contention on the bound method and underlying callable. This improves scaling when calling classmethods and staticmethods from multiple threads.
Also refactor method_vectorcall in classobject.c into a new _PyObject_VectorcallPrepend() helper so that it can be used by PyObject_VectorcallMethod as well.
(cherry picked from commit e0f7c10)
@classmethodand@staticmethod#145779