[GitHub] [rocketmq] BenXiangYangGuang opened a new issue #2466: MappedFile 中 MappedByteBuffer 和 TransientStorePool 中的ByteBuffer的区别

Tue, 01 Dec 2020 01:16:31 -0800 


BenXiangYangGuang opened a new issue #2466:
URL: https://github.com/apache/rocketmq/issues/2466


   您好，正在学习 RocketMQ 源码，有几个问题请教一下:
   MappedByteBuffer 和 ByteBuffer 都是堆外内存（直接内存）；
   
![image](https://user-images.githubusercontent.com/20946227/100720068-6d160e00-33f8-11eb-891c-a83e3b02755b.png)
   
   ByteBuffer 有内存锁定功能，还有其他区别吗？
   


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