Affiliation:
1. Eindhoven University of Technology, Eindhoven, The Netherlands
2. Philips Research, Eindhoven, The Netherlands
Abstract
Networks on chip (NoCs) are a scalable interconnect solution for multiprocessor systems on chip. We propose a generic reconfigurable online event-based NoC monitoring service, based on hardware probes attached to NoC components, offering run-time observability of NoC behavior and supporting system-level debugging. We present a probe architecture, its programming model, traffic management strategies, and a cost analysis. We prove feasibility via a prototype implementation for the Æthereal NoC. Two MPEG NoC examples show that the monitoring service area, without advanced optimizations, is 17--24% of the NoC area. Two realistic monitoring examples show that monitoring traffic is several orders of magnitude lower than the 2GB/s/link raw bandwidth.
Publisher
Association for Computing Machinery (ACM)
Subject
Electrical and Electronic Engineering,Computer Graphics and Computer-Aided Design,Computer Science Applications
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