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Using Split Queues to Improve the Performance of Parallel Switch

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Advanced Parallel Processing Technologies (APPT 2003)

Part of the book series: Lecture Notes in Computer Science ((LNCS,volume 2834))

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Abstract

Parallel switch scales well with the growth of port density and line rate. PSIQC (Parallel Switch based on Input-Queued Crossbar) is a parallel switch that is scalable and simple to implement. But it needs large capacity high-speed memories to store cells, and the average cell latency is high under heavy load. This paper presents a revised version of PSIQC based on split queues that is initialed as SQ-PSIQC (Split Queued Parallel Switch based on Input-Queued Crossbar), and its scheduling algorithm SQ-RRDS (Split Queued Round Robin and Deterministic Sequence). SQ-PSIQC not only has all of the original characteristics, but also solves the two above-mentioned problems. In SQ-PSIQC the memory buffers are required to operate only at 1/m of the line rate, where m is the number of the middle switches. The simulation results show that SQ-PSIQC performs better than PSIQC in the average latency and throughput under any load, especially heavy load.

Supported by: (1) the National Natural Science Foundation of China (No. 90104001); (2) the National High Technology Research and Development Plan of China (No. 2001AA112120).

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Author information

Authors and Affiliations

  1. School of Computer, National University of Defense Technology, Changsha, Hunan, P.R. China, 410073

    Xiaofeng Hu, Zhigang Sun, Xicheng Lu & Jinshu Su

Authors
  1. Xiaofeng Hu
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  2. Zhigang Sun
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  3. Xicheng Lu
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  4. Jinshu Su
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Editor information

Editors and Affiliations

  1. PDL, National University of Defense Technology, 410073, Changsha, China

    Xingming Zhou

  2. Department of Network Engineering, School of Computer Science, National University of Defense Technology, 410073, Changsha, China

    Ming Xu

  3. Fraunhofer FIRST, Kekuléstr. 7, D-12489, Berlin, Germany

    Stefan Jähnichen

  4. Department of Computing, Hong Kong Polytechnic University, Kowloon, Hong Kong, China

    Jiannong Cao

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© 2003 Springer-Verlag Berlin Heidelberg

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Hu, X., Sun, Z., Lu, X., Su, J. (2003). Using Split Queues to Improve the Performance of Parallel Switch. In: Zhou, X., Xu, M., Jähnichen, S., Cao, J. (eds) Advanced Parallel Processing Technologies. APPT 2003. Lecture Notes in Computer Science, vol 2834. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-39425-9_1

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  • DOI: https://doi.org/10.1007/978-3-540-39425-9_1

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-20054-3

  • Online ISBN: 978-3-540-39425-9

  • eBook Packages: Springer Book Archive

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