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基于网络处理器的流媒体应用架构模型(VPL)

, PP. 1572-1580

Keywords: 计算机软件,流媒体,多核架构,网络处理器,软件流水线

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Abstract:

研究了多核网络处理器上流媒体应用的软件架构,在混合流水线(HPL)模型的基础了提出了虚拟流水线(VPL)模型,该模型能够克服HPL负载难以均匀分配的问题。VPL模型将功能逻辑设计和资源分配相分离,增强了应用开发阶段的灵活性。为VPL提出了AF和NAF两种数据流映射策略,并对两种策略的性能进行了理论分析和实验测试,探讨了二者之间如何选取。作为VPL的应用实例,基于VPL模型在CaviumOCTEON处理器上设计了流媒体网关应用HiliMG。对HiliMG的实验结果证明了VPL相对于HPL模型的性能优势,VPL使得吞吐率提升13%以上。

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