One such extension is a mechanism for applications to manage areas of memory outside of the heap and avoid delays that are caused by garbage collection (GC).
用于应用程序管理堆外内存区域和避免垃圾收集(GC)导致的延迟的机制就是一个此类的扩展。
This tends to leave holes in the heap requiring more time to efficiently manage the free memory.
这样会在堆中留下一些洞，需要花一些时间才能有效地管理空闲内存。
This algorithm tends to be memory efficient (allocating what's necessary) but requires more time to manage the heap.
这种算法通常具有较高的内存使用效率(分配需要的内存)，但是却需要花费更多时间来对堆进行管理。
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