一种新的面向移动云下载的预压缩文件同步机制
A NOVEL PRE-COMPRESSED FILE SYNCHRONIZATION MECHANISM FOR MOBILE CLOUD DOWNLOADING
喻宇 1胥钟予 1张兴 1李永刚 2裴二荣2
作者信息
- 1. 国家电网重庆电力公司信息通信分公司 重庆 401120
- 2. 重庆邮电大学通信与信息工程学院 重庆 400065
- 折叠
摘要
远程文件的快速同步是移动云下载、Web镜像、远程系统备份等网络场景的基础技术,当前,在Linux操作系统下广泛使用Andrew Tridgell提出的rsync算法.提出一种新的面向移动云下载的预压缩文件同步机制,通过在终端引入缓存及信息重用,能显著减少终端计算量并降低网络带宽需要.结果表明,在rsync基础上实现的改进算法,通过信息的重用和缓存,可以简化计算并显著减少传输的数据量,尤其适合于能耗敏感的移动云下载等远程文件同步场合.
Abstract
Fast synchronization of remote files is the basic technology for mobile cloud download,Web mirroring,remote system backup and other network scenarios.At present,the rsync algorithm proposed by Andrew Tridgell is widely used in Linux operating system.This paper proposes a new pre-compressed file synchronization mechanism for mobile cloud download.By introducing cache and information reuse at the terminal,it can significantly reduce the terminal computation and reduce the network bandwidth requirement.The results show that the improved algorithm based on rsync can simplify the calculation and significantly reduce the amount of data transferred through information reuse and caching,especially suitable for remote file synchronization occasions such as mobile cloud download which is sensitive to energy consumption.
关键词
移动云下载/文件快速同步/信息重用/能耗敏感Key words
Mobile cloud downloading/Quick file synchronization/Information reuse/Energy-sensitive引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据