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Buffer-Aware Analysis for Worst-Case Traversal Time of Real-Time Traffic over RRA-based NoCs

Publication Type:

Conference/Workshop Paper

Venue:

27th Euromicro International Conference on Parallel, Distributed, and Network-Based Processing


Abstract

Network-on-Chip (NoC) is a communication sub-system which has been widely utilized in many-core processors and system-on-chips in general. In order to execute time-critical applications on a NoC-based platform, the timing behavior of the network needs to be predicted during system design. One of the most important timing requirements is regarding schedulability, which refers to determining if a real-time packet can be delivered within a specific time duration. To verify the fulfillment of such timing requirement, a proper timing analysis is mandatory. Our work focuses on a Round-Robin Arbitration (RRA) based wormhole-switched NoC, which is a common architecture used in many of the existing implementations. Recursive Calculus (RC) is one of the existing analysis approaches for RRA-based NoCs which has been utilized in many research works. However, RC does not take buffer-effects into account. As a result, while performing RC on most of the existing RRA-based NoC designs, it can produce unsafe estimates which is not acceptable for time-critical systems. In this paper, we identify the optimistic problem of RC, and we propose a Revised Recursive Calculus (RRC) which extends RC by considering buffer-effects as well as supporting packetization.

Bibtex

@inproceedings{Liu4595,
author = {Meng Liu and Matthias Becker and Moris Behnam and Thomas Nolte},
title = {Buffer-Aware Analysis for Worst-Case Traversal Time of Real-Time Traffic over RRA-based NoCs},
month = {March},
year = {2017},
booktitle = {27th Euromicro International Conference on Parallel, Distributed, and Network-Based Processing},
url = {http://www.es.mdh.se/publications/4595-}
}