A Link Arbitration Scheme for Quality of Service in a Latency-Optimized Network-on-Chip

Provided by: edaa
Topic: Hardware
Format: PDF
Networks-on-Chip (NoC) for general-purpose multiprocessors require quality of service mechanisms to allow real-time streaming applications to be executed along with latency sensitive general purpose processing tasks. In this paper, the authors propose a NoC link arbitration technique that supports bandwidth guarantees along with best effort latency optimizations. In contrast to many existing quality of service mechanisms, their technique prioritizes best effort over guaranteed bandwidth traffic for optimal latency. Distributed traffic shaping is used to offer bandwidth guarantees over previously reserved connections, which are established dynamically using control messages.

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