• 1. Heap map: 热点图

• 1.No, I didn't forgotten about these, but unfortunately, neither DynaCache nor Distributed Map provides an alternative to a 64-bit JVM when you need a large application server heap.
  我并没有忘记这两项，不过对于需要大型应用程序服务器堆的情况，DynaCache和Distributed Map都没有提供64位JVM的替代方案。
  dict.yoduao.com
• 2.The ObjectMap is a map local to the application; in other words, the map exists in the heap space of the same JVM on which the application is running.
  ObjectMap 是应用程序本地的映射，也就是说，映射存在于应用程序运行所在的堆空间中。
  dict.yoduao.com
• 3.Each time a pointer field in an object in the heap is modified, the corresponding bit in the card map for that card is set.
  每次修改堆中对象中的指针字段时，就在卡片映射中设置对应那张卡片的相应位。
  dict.yoduao.com

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