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Extending RTOS Functionalities: an Approach for Embedded Heterogeneous Multi-Core Systems

Authors:
Shuichi Oikawa
Gaku Nakagawa
Naoto Ogawa
Shougo Saito

Keywords: Real-Time Operating Systems; Heterogeneous Multi-Core Systems; Embedded Systems.

Abstract:
This paper proposes an approach to extend real- time operating system (RTOS) architecture for embedded heterogeneous muti-core processors, which consist of proces- sors with different processing power and functionalities. The architecture splits the RTOS kernel into the two components, the proxy kernel (PK) and user-level kernel (UK). The PK runs on a less powerful core, and delegate its functions to the UK that runs on a powerful core as a user process. The experiment results running micro benchmark programs show that a communication cost between the UK and its user process is negligible and that there are cases where UK outperforms the monolithic kernel. These results confirm that the proposed approach is practically useful.

Pages: 136 to 139

Copyright: Copyright (c) IARIA, 2012

Publication date: June 24, 2012

Published in: conference

ISSN: 2308-4529

ISBN: 978-1-61208-202-8

Location: Venice, Italy

Dates: from June 24, 2012 to June 29, 2012