Towards including batch services in models for DPDK-based virtual switches

Zidong Su 1 Thomas Begin 1 Bruno Baynat 2
1 DANTE - Dynamic Networks : Temporal and Structural Capture Approach
Inria Grenoble - Rhône-Alpes, LIP - Laboratoire de l'Informatique du Parallélisme, IXXI - Institut Rhône-Alpin des systèmes complexes
2 NPA - Networks and Performance Analysis
LIP6 - Laboratoire d'Informatique de Paris 6
Abstract : With the development of NFV (Network Function Virtualization) paradigm, networking functions would gradually move from specialized and proprietary hardware to open-source software run over a virtual machine (VM) deployed on commodity hardware. Open vSwitch (OVS) is the most prominent open-source solution implementing a virtual switch, while DPDK (Data Plane Development Kit) is a set of specialized libraries to enhance the performance. In particular, DPDK allows packets to be processed by batches. In this paper, we address the issue of modeling the behavior of a DPDK-based virtual switch. First, we investigate the influence of batch services on the overall performance of a virtual switch. Second, we extend two former analytical models to include the processing of packets by batches. We propose a simple means to do it, and we evaluate the accuracy of our solution on two different scenarios. Numerical results show that, despite its simplicity, our approach provides fairly good results when compared to simulation.
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Zidong Su, Thomas Begin, Bruno Baynat. Towards including batch services in models for DPDK-based virtual switches. IEEE Global Information Infrastructure and Networking Symposium (GIIS 2017), Oct 2017, Saint Pierre, France. pp.37-44. ⟨hal-01632879⟩

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