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Computer networks require increasingly complex packet processing functions in the data plane to adapt to new requirements. To meet performance demands, packet processing systems on routers employ multiple processor cores. To efficiently utilize processing resources in such systems, the authors propose a novel methodology for allocating tasks to processors. The main idea is to obtain runtime profiling information and to duplicate tasks with heavy processing requirements. Using their duplication algorithm, a balanced workload can be obtained and the complexity of packing tasks with different processing requirements can be reduced. By translating traffic characteristics into processing requirements, the system is able to adapt to dynamic changes in the workload and balance the utilization of all processing resources to maximize system throughput.
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