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GH-108362: Incremental Cycle GC (GH-116206)

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Mark Shannon 2024-03-20 08:54:42 +00:00 • committed by GitHub
parent d5ebf8b71f
commit 15309329b6
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14 changed files with 743 additions and 447 deletions
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25
Modules/gcmodule.c
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@ -158,17 +158,12 @@ gc_set_threshold_impl(PyObject *module, int threshold0, int group_right_1,
{
GCState *gcstate = get_gc_state();
gcstate->generations[0].threshold = threshold0;
gcstate->young.threshold = threshold0;
if (group_right_1) {
gcstate->generations[1].threshold = threshold1;
gcstate->old[0].threshold = threshold1;
}
if (group_right_2) {
gcstate->generations[2].threshold = threshold2;
/* generations higher than 2 get the same threshold */
for (int i = 3; i < NUM_GENERATIONS; i++) {
gcstate->generations[i].threshold = gcstate->generations[2].threshold;
}
gcstate->old[1].threshold = threshold2;
}
Py_RETURN_NONE;
}
@ -185,9 +180,9 @@ gc_get_threshold_impl(PyObject *module)
{
GCState *gcstate = get_gc_state();
return Py_BuildValue("(iii)",
gcstate->generations[0].threshold,
gcstate->generations[1].threshold,
gcstate->generations[2].threshold);
gcstate->young.threshold,
gcstate->old[0].threshold,
0);
}
/*[clinic input]
@ -207,14 +202,14 @@ gc_get_count_impl(PyObject *module)
struct _gc_thread_state *gc = &tstate->gc;
// Flush the local allocation count to the global count
_Py_atomic_add_int(&gcstate->generations[0].count, (int)gc->alloc_count);
_Py_atomic_add_int(&gcstate->young.count, (int)gc->alloc_count);
gc->alloc_count = 0;
#endif
return Py_BuildValue("(iii)",
gcstate->generations[0].count,
gcstate->generations[1].count,
gcstate->generations[2].count);
gcstate->young.count,
gcstate->old[gcstate->visited_space].count,
gcstate->old[gcstate->visited_space^1].count);
}
/*[clinic input]