吉林大学学报(工学版) ›› 2015, Vol. 45 ›› Issue (5): 1572-1580.doi: 10.13229/j.cnki.jdxbgxb201505028

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Architecture model of streaming media applications on network processors(VPL)

LI Ming-zhe1, 2, WANG Jin-lin1, CHEN Xiao1, CHEN Jun1   

  1. 1.National Network New Media Engineering Research Center, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China;
    2.School of Physics, University of Chinese Academy of Sciences, Beijing 100190, China
  • Received:2014-03-10 Online:2015-09-01 Published:2015-09-01

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Abstract: Designing of high-performance software architectures for streaming media applications on network processors is studied. The VPL (Virtual Pipeline) model is presented as an enhancement to the commonly used the HPL (Hybrid Pipeline) multi-core architecture model. VPL overcomes the load imbalance problem of HPL. Besides, VPL separates application logic design from resource mapping which improves flexibility of software development. VPL supports a variety of data flow mapping strategies. Two of such strategies are proposed. Performance of these strategies was analyzed theoretically and measured on real hardware to explore when to use each. As an example application of VPL, HiliMG, a streaming media gateway application, was designed and implemented on a Cavium OCTEON network processor. Experimental results on HiliMG further confirmed that VPL performs better than HPL in term of data throughput by at least 13%.

Key words: computer software, streaming media, multicore architecture, network processor, software pipeline

CLC Number: 

  • TP316
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