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gh-97922: Run the GC only on eval breaker (#97920)

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This commit is contained in:
Pablo Galindo Salgado
2022-10-08 07:57:09 -07:00
committed by GitHub
parent c66dbddfba
commit 83eb827247
8 changed files with 74 additions and 14 deletions
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27
Modules/gcmodule.c
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@@ -2252,6 +2252,20 @@ PyObject_IS_GC(PyObject *obj)
return _PyObject_IS_GC(obj);
}
void
_Py_ScheduleGC(PyInterpreterState *interp)
{
GCState *gcstate = &interp->gc;
if (gcstate->collecting == 1) {
return;
}
struct _ceval_state *ceval = &interp->ceval;
if (!_Py_atomic_load_relaxed(&ceval->gc_scheduled)) {
_Py_atomic_store_relaxed(&ceval->gc_scheduled, 1);
_Py_atomic_store_relaxed(&ceval->eval_breaker, 1);
}
}
void
_PyObject_GC_Link(PyObject *op)
{
@@ -2269,12 +2283,19 @@ _PyObject_GC_Link(PyObject *op)
!gcstate->collecting &&
!_PyErr_Occurred(tstate))
{
gcstate->collecting = 1;
gc_collect_generations(tstate);
gcstate->collecting = 0;
_Py_ScheduleGC(tstate->interp);
}
}
void
_Py_RunGC(PyThreadState *tstate)
{
GCState *gcstate = &tstate->interp->gc;
gcstate->collecting = 1;
gc_collect_generations(tstate);
gcstate->collecting = 0;
}
static PyObject *
gc_alloc(size_t basicsize, size_t presize)
{