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Exploiting Task-Level Concurrency in a Programmable Network Interface

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Title: Exploiting Task-Level Concurrency in a Programmable Network Interface
Author: Kim, Hyong-youb; Pai, Vijay S.; Rixner, Scott
Type: Conference paper
Keywords: parallel programming; embedded systems; network interfaces; memory performance
Citation: H. Kim, V. S. Pai and S. Rixner, "Exploiting Task-Level Concurrency in a Programmable Network Interface," 2003.
Abstract: Programmable network interfaces provide the potential to extend the functionality of network services but lead to instruction processing overheads when compared to application-specific network interfaces. This paper aims to offset those performance disadvantages by exploiting task-level concurrency in the workload to parallelize the network interface firmware for a programmable controller with two processors. By carefully partitioning the handler procedures that process various events related to the progress of a packet, the system can minimize sharing, achieve load balance, and efficiently utilize on-chip storage. Compared to the uniprocessor firmware released by the manufacturer, the parallelized network interface firmware increases throughput by 65% for bidirectional UDP traffic of maximum-sized packets, 157% for bidirectional UDP traffic of minimum-sized packets, and 32-107% for real network services. This parallelization results in performance within 10-20% of a modern ASIC-based network interface for real network services.
Date Published: 2003-06-20

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  • ECE Publications [1048 items]
    Publications by Rice University Electrical and Computer Engineering faculty and graduate students