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Architectural performance analysis of FPGA synthesized LEON processors

Damman, Corentin and Edison, Gregory and Guet, Fabrice and Noulard, Eric and Santinelli, Luca and Hugues, Jérôme Architectural performance analysis of FPGA synthesized LEON processors. (2016) In: 27th International Symposium on Rapid System Prototyping, 1 October 2016 - 7 October 2016 (Pittsburgh, United States).

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Official URL: http://dx.doi.org/10.1145/2990299.2990306

Abstract

Current processors have gone through multiple internal opti- mization to speed-up the average execution time e.g. pipelines, branch prediction. Besides, internal communication mechanisms and shared resources like caches or buses have a sig- nificant impact on Worst-Case Execution Times (WCETs). Having an accurate estimate of a WCET is now a challenge. Probabilistic approaches provide a viable alternative to single WCET estimation. They consider WCET as a probabilistic distribution associated to uncertainty or risk. In this paper, we present synthetic benchmarks and associated analysis for several LEON3 configurations on FPGA targets. Benchmarking exposes key parameters to execution time variability allowing for accurate probabilistic modeling of system dynamics. We analyze the impact of architecture- level configurations on average and worst-case behaviors.

Item Type:Conference or Workshop Item (Paper)
Additional Information:© ACM, 2016. This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in RSP '16 Proceedings of the 27th International Symposium on Rapid System Prototyping: Shortening the Path from Specification to Prototype, pp. 33-40, ISBN 978-1-4503-4535-4, http://dx.doi.org/10.1145/2990299.2990306
HAL Id:hal-01543282
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
French research institutions > Office National d'Etudes et Recherches Aérospatiales - ONERA (FRANCE)
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Deposited By: Jerome Hugues
Deposited On:19 Jun 2017 13:47

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