| 一种基于吞吐量的并行度动态调整算法 |
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| 引用本文： | 黄一辛,王俊峰,王敏,牟璇.一种基于吞吐量的并行度动态调整算法[J].四川大学学报(自然科学版),2014,51(2):273-276. |
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| 作者姓名： | 黄一辛 王俊峰 王敏 牟璇 |
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| 作者单位： | 四川大学计算机学院;四川大学计算机学院;四川大学计算机学院;四川大学计算机学院 |
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| 基金项目： | 国家科技重大专项(2012ZX10004901001); 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(NCET100604); 教育部博士点基金项目(20130181110095); 四川省科技支撑计划项目(2013SZ0002) |
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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.
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| 关 键 词： | 并行度 吞吐量 动态调整 FTP |
| 收稿时间： | 2013/9/16 0:00:00 |
A dynamic parallelism tuning algorithm based on throughput |
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| HUANG Yi-Xin,WANG Jun-Feng,WANG Min and MOU Xuan.A dynamic parallelism tuning algorithm based on throughput[J].Journal of Sichuan University (Natural Science Edition),2014,51(2):273-276. |
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| Authors: | HUANG Yi-Xin WANG Jun-Feng WANG Min and MOU Xuan |
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| Institution: | College of Computer, Sichuan University;College of Computer, Sichuan University;College of Computer, Sichuan University;College of Computer, Sichuan University |
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| Abstract: | 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 adjusts the degree of parallelism by estimating throughput and evaluating network conditions. Also 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. |
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| Keywords: | Parallelism Throughput Dynamic tuning FTP |
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