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A Stochastic Response Time Analysis for Communications in On-Chip Networks
Publication Type:
Conference/Workshop Paper
Venue:
21st IEEE International Conference on Embedded and Real-Time Computing Systems and Applications
Abstract
Priority-based wormhole-switching has been proposed
as a solution to handle real-time traffic in on-chip networks.
In order to support real-time traffic, the predictability of end-toend
delays need to be guaranteed. Several deterministic schedulability
analysis approaches for wormhole-switched networks have
been proposed. These approaches calculate a single upper-bound
of the response time of each Network-on-Chip (NoC) flow, which
is suitable for hard real-time applications. However, for many
soft real-time applications, the performance does not depend on
the worst-case scenario, which means that the calculated single
upper-bounds are not sufficient to represent the performance.
Therefore, in this paper, we present a stochastic Response Time
Analysis (RTA) which can calculate a distribution of the response
times of a real-time NoC flow. The estimated distributions can
be utilized for multiple purposes, such as calculating deadline
miss ratios, and computing upper-bounds regarding different
probabilities. A number of simulation-based experiments are
generated in order to investigate the pessimism involved in
the analysis. Moreover, the processing time of the analysis is
also measured from the experiments in order to examine the
scalability of the proposed approach.
Bibtex
@inproceedings{Liu3995,
author = {Meng Liu and Moris Behnam and Thomas Nolte},
title = {A Stochastic Response Time Analysis for Communications in On-Chip Networks},
month = {August},
year = {2015},
booktitle = {21st IEEE International Conference on Embedded and Real-Time Computing Systems and Applications},
url = {http://www.es.mdu.se/publications/3995-}
}