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GH-126491: GC: Mark objects reachable from roots before doing cycle collection (GH-127110)

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* Mark almost all reachable objects before doing collection phase

* Add stats for objects marked

* Visit new frames before each increment

* Update docs

* Clearer calculation of work to do.
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Mark Shannon 2024-12-02 10:12:17 +00:00 • committed by GitHub
parent 2a373da770
commit a8dd821d5b
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14 changed files with 365 additions and 113 deletions
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6
Modules/_testinternalcapi.c
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@ -2076,6 +2076,11 @@ has_deferred_refcount(PyObject *self, PyObject *op)
return PyBool_FromLong(_PyObject_HasDeferredRefcount(op));
}
static PyObject *
get_tracked_heap_size(PyObject *self, PyObject *Py_UNUSED(ignored))
{
return PyLong_FromInt64(PyInterpreterState_Get()->gc.heap_size);
}
static PyMethodDef module_functions[] = {
{"get_configs", get_configs, METH_NOARGS},
@ -2174,6 +2179,7 @@ static PyMethodDef module_functions[] = {
{"get_static_builtin_types", get_static_builtin_types, METH_NOARGS},
{"identify_type_slot_wrappers", identify_type_slot_wrappers, METH_NOARGS},
{"has_deferred_refcount", has_deferred_refcount, METH_O},
{"get_tracked_heap_size", get_tracked_heap_size, METH_NOARGS},
{NULL, NULL} /* sentinel */
};