const runtime.defaultHeapMinimum

3 uses

	runtime (current package)
		mgc.go#L164: var heapminimum uint64 = defaultHeapMinimum
		mgc.go#L167: const defaultHeapMinimum = 4 << 20
		mgc.go#L234: 		heapminimum = defaultHeapMinimum * uint64(gcpercent) / 100