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tweak gc

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This commit is contained in:
blueloveTH 2025-06-30 00:44:07 +08:00
parent f9f74b7b12
commit ddd99b121f
2 changed files with 8 additions and 4 deletions
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7
src/interpreter/heap.c
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@ -33,25 +33,26 @@ void ManagedHeap__dtor(ManagedHeap* self) {
void ManagedHeap__collect_if_needed(ManagedHeap* self) {
if(!self->gc_enabled) return;
if(self->gc_counter < self->gc_threshold) return;
self->gc_counter = 0;
int freed = ManagedHeap__collect(self);
// adjust `gc_threshold` based on `freed_ma`
self->freed_ma[0] = self->freed_ma[1];
self->freed_ma[1] = self->freed_ma[2];
self->freed_ma[2] = freed;
int avg_freed = (self->freed_ma[0] + self->freed_ma[1] + self->freed_ma[2]) / 3;
const int upper = PK_GC_MIN_THRESHOLD * 8;
const int upper = PK_GC_MIN_THRESHOLD * 16;
const int lower = PK_GC_MIN_THRESHOLD / 2;
float free_ratio = (float)avg_freed / self->gc_threshold;
int new_threshold = self->gc_threshold * (1 / free_ratio);
int new_threshold = self->gc_threshold * (1.5f / free_ratio);
// printf("gc_threshold=%d, avg_freed=%d, new_threshold=%d\n", self->gc_threshold, avg_freed,
// new_threshold);
self->gc_threshold = c11__min(c11__max(new_threshold, lower), upper);
}
int ManagedHeap__collect(ManagedHeap* self) {
self->gc_counter = 0;
ManagedHeap__mark(self);
int freed = ManagedHeap__sweep(self);
// printf("GC: collected %d objects\n", freed);
return freed;
}

5
src/interpreter/vmx.c
View File

@ -123,5 +123,8 @@ py_Ref py_name2ref(py_Name name) {
void PyObject__dtor(PyObject* self) {
py_Dtor dtor = c11__getitem(TypePointer, &pk_current_vm->types, self->type).dtor;
if(dtor) dtor(PyObject__userdata(self));
if(self->slots == -1) NameDict__dtor(PyObject__dict(self));
if(self->slots == -1) {
NameDict* dict = PyObject__dict(self);
NameDict__dtor(dict);
}
}