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DATE
2009
IEEE

A link arbitration scheme for quality of service in a latency-optimized network-on-chip

9 years 6 months ago
A link arbitration scheme for quality of service in a latency-optimized network-on-chip
Abstract—Networks-on-chip (NoC) for general-purpose multiprocessors require quality of service mechanisms to allow realtime streaming applications to be executed along with latencysensitive general purpose processing tasks. In this paper, we 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, our 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. Initial simulation results show that our arbitration scheme can provide tight bandwidth guarantees for streaming traffic under network overload conditions. At the same time, the average latency of best effort traffic is improved compared to a simple prioritization of streaming traffic.
Jonas Diemer, Rolf Ernst
Added 20 May 2010
Updated 20 May 2010
Type Conference
Year 2009
Where DATE
Authors Jonas Diemer, Rolf Ernst
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