Conversely, mark-compact collectors do very well with long-lived objects, because long-lived objects tend to accumulate at the bottom of the heap and then do not need to be copied again.

• 相反,标记-整理收集器对于长寿对象可以工作得很好,因为长寿对象趋向于沉在堆的底部,从而不用再复制。