RTEMS Core Analysis for Space Applications

Author

Nicodemos, Fernando ; Saotome, Osamu ; Lima, George

Author_Institution

Dept. de Sist. Aeroespaciais - EAM-S, Inst. Tecnol. de Aeronaut. - ITA, São José dos Campos, Brazil

fYear

2013

fDate

4-8 Dec. 2013

Firstpage

125

Lastpage

130

Abstract

Overheads due to context switching and external interrupt management are core characteristics for Real-Time Operating Systems (RTOS) since they play a central role in their performance and timeliness. In this paper we evaluate two core characteristics for the Real-Time Executive for Multiprocessor Systems (RTEMS), an operating system used for supporting space applications. Our assessment makes use of an external non-intrusive measurement tool based on a Field-Programmable Gate Array (FPGA). Measurement data are then transferred to an external computer and analyzed off-line. Experiments are carried out on a device that complies with the Brazilian space program recommendation.

Keywords

aerospace computing; embedded systems; field programmable gate arrays; multiprocessing systems; operating systems (computers); Brazilian space program recommendation; FPGA; RTEMS core analysis; context switching; embedded systems; external computer; external interrupt management; external nonintrusive measurement tool; field-programmable gate array; measurement data; real-time executive for multiprocessor systems; real-time operating systems; space applications; Context; Context modeling; Field programmable gate arrays; Hardware; Real-time systems; Switches; Timing; Core Performance Measurement; Embedded Systems; FPGA; RTEMS; Real-Time Operating System; Space Applications; Timing Analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Computing Systems Engineering (SBESC), 2013 III Brazilian Symposium on

Conference_Location

Niteroi

Type

conf

DOI

10.1109/SBESC.2013.22

Filename

6825354