分类的缓存数据延迟写技术

Technology of Reordering Write-Behind Buffer

根据缓存数据在缓冲区的活动性不同而设计和实现了一个分类的延迟写(Writebehind)技术.通过将不同活动性的数据分类缓存,并延迟刷新到磁盘来减少、合并写磁盘的次数,从而改进文件系统的写性能.初步的实现结果表明,分类的缓存延迟写技术比LRU的缓存策略有更短的系统响应时间,写文件的反馈时间减少了11.3%,并且使用RWB策略的缓存命中率比使用LRU策略高.

This paper designs and implements a novel write-behmct tecnnique based the I/O overhead and improve file write performance by reorganizing data in two buffers according to their activities to reduce and amalgamate the write times. Abecedarian implementation has shown that this technique has less 11.3% response time compared with LRU policy when writing files, and has more cache hit rate compared with LRU.