堆内内存(in heap cache/memory)还是堆外内存(off heap cache/memory)？

  堆内内存(in heap cache/memory)还是堆外内存(off heap cache/memory)？

      没有GC的map  OpenHFT公司提供三个开源库：Chronicle Queue、Chronicle Map和Thread Affinity，这些库可以帮助开发人员使用堆外内存来保存数据。采用堆外内存有很多好处，同时也带来挑战

堆内内存(in heap cache/memory)还是堆外内存(off heap cache/memory)？：    

      http://www.infoq.com/cn/news/2014/12/external-memory-heap-memory/

      https://www.javacodegeeks.com/2015/03/creating-millions-of-objects-with-zero-garbage.html
      https://github.com/OpenHFT/Chronicle-Map

      http://chronicle.software/products/chronicle-map/

  OpenJDK 和 HashMap,大量数据处理时，避免垃圾回收延迟的技巧（off-heap)。https://www.oschina.net/translate/open-jdk-and-hashmap-off-heap
      https://github.com/snazy/ohc
      什么是堆外内存off-heap:http://www.jdon.com/46066
      cassandra的部件ohc(off heap cache)

      Ehcache 3.0 首个里程碑发布，支持 Off-Heap 

http://www.oschina.net/news/60865/ehcache3-with-off-heap-storage

      Off-heap技术在大数据处理中的应用 

http://www.oschina.net/news/60865/ehcache3-with-off-heap-storage