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GH-126491: GC: Mark objects reachable from roots before doing cycle collection (GH-126502)

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* Mark almost all reachable objects before doing collection phase

* Add stats for objects marked

* Visit new frames before each increment

* Remove lazy dict tracking

* Update docs

* Clearer calculation of work to do.
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Mark Shannon 2024-11-18 14:31:26 +00:00 • committed by GitHub
parent a1d9c8aa80
commit b0fcc2c47a
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21 changed files with 332 additions and 330 deletions
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4
Python/executor_cases.c.h generated
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@ -2914,10 +2914,6 @@
UOP_STAT_INC(uopcode, miss);
JUMP_TO_JUMP_TARGET();
}
/* Ensure dict is GC tracked if it needs to be */
if (!_PyObject_GC_IS_TRACKED(dict) && _PyObject_GC_MAY_BE_TRACKED(PyStackRef_AsPyObjectBorrow(value))) {
_PyObject_GC_TRACK(dict);
}
_PyFrame_SetStackPointer(frame, stack_pointer);
_PyDict_NotifyEvent(tstate->interp, PyDict_EVENT_MODIFIED, dict, name, PyStackRef_AsPyObjectBorrow(value));
stack_pointer = _PyFrame_GetStackPointer(frame);