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A scalable approach to distributed scheduling scheme on cluster architecture of real-time server

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4 Author(s)
Yu Tang ; Sch. of Comput. Sci. & Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China ; Changqin Bu ; Zhenghua Wu ; Sheng Su

For cluster servers demanded to sustain high workload, system scalability imposes a critical challenge to cluster design. Most of scheduling algorithms proposed for clusters are push-based, i.e. the resource scheduling and load distribution functions are implemented at the cluster front-end, which may lead to a performance bottleneck when system scales up to meet growing needs of computing power. In this paper, we propose a new Pull-Based Distributed Scheme (PBDS) to completely spread the scheduling functionality to cluster backend nodes, which ultimately reduces the workload at the cluster front-end. Experiments on Linux cluster at varied load levels demonstrate that the PBDS scheme outperforms conventional push-based schemes by cutting the average response time by 27% to 32% while maintaining overall throughput level. Furthermore, scalability test shows the PBDS scheme presents a consistent better performance when system is expanded from 10 nodes to 30 nodes, showing a promising scalable solution to large-scale cluster systems.

Published in:

Computer Engineering and Technology (ICCET), 2010 2nd International Conference on  (Volume:3 )

Date of Conference:

16-18 April 2010

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