一种移动透明计算系统中的双缓存协作策略

A Dual-cache Cooperation Strategy in Mobile Transparent Computing System

为降低带宽对移动透明计算系统TCOS性能的影响,提出一种将本地缓存与P2P缓存相结合的缓存协作策略TC-CCS。将本地缓存用于缓存用户常用个人数据,并把P2P缓存分别用于缓存操作系统和应用软件启动数据。针对TCOS系统中数据的访问特点,设计实现TC-replace替换算法,兼顾本地和其他终端的访问情况对缓存进行替换。实验结果表明,TC-CCS策略能加快操作系统和应用软件启动速度,其中系统启动时间缩短了约40%。

To reduce the influence of bandwidth for mobile transparent computing system TCOS,this paper proposes a cache cooperation strategy named TC-CCS that combines the local cache and the P2P cache.Local cache is used to store the user s personal data.P2P cache is divided into two parts,which is used to store the operating system and the starting data of application software.According to the feature of data access in TCOS system,the paper designs and implements a TC-replace replacement algorithm,which can replace the cache flexibly by analysis the access of local and other terminals.Experimental results show that,by using the TC-CCS strategy,the starting speed of operating system and application software can be accelerated,and the start-up time of operating system is reduced about 40%