提出并实现了一种细粒度内存管理方案.该方案以用户数据对象为粒度对内存进行管理,当需要将部分内存数据换出以获得空闲内存空间时,不再像传统操作系统以页为单位换出,而是将多个冷数据对象换出到底层存储设备中,最大限度地保证了被换出的数据近期内不会再次被访问,从而有效减少了额外的I/O开销.测试结果表明,本方案与操作系统页交换机制相比,系统响应速度平均提高了37.5%. Proposed and implemented a fine-grained memory management scheme, which manages the memory with user data objects as granularity. When some of the memory data needs to be swapped out to obtain free memory space, it is no longer the same as the traditional operating system with pages as the unit Swap out, but instead of a number of cold data objects swap out to the underlying storage device, to maximize the swap out of the data will not be accessed again in the near future, thus effectively reducing the additional I / O costs. The results show that the system response speed is improved by 37.5% on average compared with the operating system page switching mechanism.