// This maintains the invariant that we use no more memory than the next GC cycle
		// will anyway.
		hardGoal := int64((1.0 + float64(gcPercent)/100.0) * float64(heapGoal))
		if extHeapGoal > hardGoal {
			extHeapGoal = hardGoal
		}
		heapGoal = extHeapGoal
	}
	if int64(live) > heapGoal {
		// We're already past our heap goal, even the extrapolated one.
		// Leave ourselves some extra runway, so in the worst case we