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- Title
志愿计算系统时延分析.
- Authors
张健; 李东; 叶通
- Abstract
Volunteer computing (VC) is a distributed computing system which uses spare computing power from general public to do scientific computing. With the rapid growth of volunteer computing, delay performance evaluation becomes more and more important. In existing literatures, delay performance of VC system is majorly observed by simulations and experiments, through which the influence of system parameters cannot be deeply analyzed. Therefore, a new model is proposed to analyze the delay performance of VC system. The VC system can be modeled as a single server queue with variable service rate. Analytical results show that the mean queue length increases with the fluctuation of service rate. Therefore,the mean queue length under two extreme cases,variance of service rate approaches to 0 and infinity, should be the lower bound and upper bound respectively. And the mean queue length under the two extreme cases can be obtained by the simplified system model. Simulation result validates that the two queue length bounds are both valid and accurate.
- Publication
Telecommunication Engineering, 2017, Vol 57, Issue 12, p1356
- ISSN
1001-893X
- Publication type
Article
- DOI
10.3969/j.issn.1001-893x.2017.12.002