NDLI: Early Modeling of Linux-Based RTOS Platforms in a SystemC Time-Approximate Co-simulation Environment

Content Provider	IEEE Xplore Digital Library
Author	Posadas, H. Villar, E. Ragot, D. Martinez, M.
Copyright Year	2010
Abstract	The increase of computational power in embedded systems has allowed integrating together hard real-time tasks and rich applications. Complex SW infrastructures containing both RTOS and GPOS are required to handle this complexity. To optimally map system functionality to the hard-RT SW domain, to the general purpose SW domain or to HW peripherals, early performance evaluations at the first steps of the design process are required. Approximate timed co-simulation has been proposed as a fast solution for system modeling at early design steps. This co-simulation technique allows simulating systems at speed close to functional execution, while considering timing effects. As a consequence, system performance estimations can be obtained early, allowing efficient design space exploration and system refinement. To achieve fast simulation speed, the SW code is pre-annotated with time information. The annotated code is then natively executed, performing what is called native-based co-simulation. Previous native-based simulation environments are not prepared to model multi-OS systems, so the performance evaluation of the different SW domains is not possible. This paper proposes a new embedded system modeling solution considering dual RTOS/GPOS systems. A real Linux-based infrastructure has been modeled an integrated into a state-of-the-art co-simulation environment. The resulting solution is capable of modeling and evaluating all HW and SW system components providing the designer with valuable information for early system optimization and design space exploration.
Starting Page	238
Ending Page	244
File Size	322624
Page Count	7
File Format	PDF
ISBN	9781424470839
ISSN	15550885
DOI	10.1109/ISORC.2010.18
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-05-05
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Real time systems Embedded system Linux Operating systems Distributed computing Process design Timing System performance Space exploration Power system reliability Real-time linux Co-simulation TLM Approximately-timed
Content Type	Text
Resource Type	Article

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