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一种基于吞吐量的并行度动态调整算法 被引量:1

A dynamic parallelism tuning algorithm based on throughput
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摘要 并行数据传输技术可以有效地提高文件特别是大文件的传输效率,但传统的静态并行度调整策略缺乏对网络的适应性,本文提出一种基于吞吐量的并行度动态调整算法,通过对吞吐量的预测和对网络状况的估计实现并行度的动态调整;并利用多线程技术和FTP协议实现了该算法.在真实网络环境下的实验结果表明,下载速度至少比固定线程数下载软件快8倍. The static parallelism tuning strategy of concurrent data transmission is short of flexibility for network conditions.This paper proposes a dynamic parallelism tuning algorithm based on throughput, which adj usts the degree of parallelism by estimating throughput and evaluating network conditions.Al-so the authors implement the algorithm based on multithread and FTP protocol.For the real network tests,the experimental results show that the downloading speed of the algorithm at least 8 times faster than other software of fixed thread count.
出处 《四川大学学报(自然科学版)》 CAS CSCD 北大核心 2014年第2期273-276,共4页 Journal of Sichuan University(Natural Science Edition)
基金 国家科技重大专项(2012ZX10004-901001) 国家自然科学基金项目(91338107 11102124) 教育部新世纪优秀人才支持计划项目(NCET-10-0604) 教育部博士点基金项目(20130181110095) 四川省科技支撑计划项目(2013SZ0002)
关键词 并行度 吞吐量 动态调整 FTP Parallelism Throughput Dynamic tuning FTP
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