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PacketBench: a tool for workload characterization of network processing

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2 Author(s)
Ramaswamy, R. ; Dept. of Electr. & Comput. Eng., Massachusetts Univ., Amherst, MA, USA ; Wolf, T.

Network processing is becoming an increasingly important paradigm as the Internet moves towards an architecture with more complex functionality inside the network. Modern routers not only forward packets, but also process headers and payloads to implement a variety of functions related to security, performance, and customization. It is important to get a detailed understanding of the workloads associated with this processing in order to be able to develop efficient network processing engines. We present a tool called PacketBench, which provides a framework for implementing network processing applications and obtaining an extensive set of workload characteristics. PacketBench provides the support functions to handle various packet traces and manage packet memory. For statistics collection, PacketBench provides the ability to derive a number of microarchitectural and networking related metrics. We present the results of such measurements for four different networking applications ranging from simple packet forwarding to complex packet payload encryption. The results show that such workload analysis has a range of uses from network processor design to application optimization.

Published in:

Workload Characterization, 2003. WWC-6. 2003 IEEE International Workshop on

Date of Conference:

27 Oct. 2003

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