An application-based EDF scheduler for OSEK/VDX

Author

Diederichs, Claas ; Margull, Ulrich ; Slomka, Frank ; Wirrer, Gerhard

Author_Institution

Inchron GmbH, Potsdam

fYear

2008

fDate

10-14 March 2008

Firstpage

1045

Lastpage

1050

Abstract

Earliest deadline first scheduling performs processor utilization up to 100 percent and improved robustness in overload situations. However, most automotive applications are running under static priority policy. Because of this, the standard operating system in the automotive industry, OSEK/VDX, just supports priority scheduling. This paper describes an EDF scheduler plug-in for OSEK/VDX. The plug-in provides EDF scheduling without changes to the operating system by delaying task activations. The add-on was tested for an engine management system developed by SiemensVDO. Results of this experiment are presented and discussed, showing that the EDF scheduling techniques can improve the system in aspects of robustness and resource utilization.

Keywords

automobile industry; operating systems (computers); processor scheduling; scheduling; EDF scheduler; OSEK/VDX; SiemensVDO; automotive industry; earliest deadline first scheduling; engine management system; operating system; processor scheduling; static priority policy; Automotive applications; Automotive engineering; Delay systems; Engines; Job shop scheduling; Operating systems; Processor scheduling; Resource management; Robustness; System testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Design, Automation and Test in Europe, 2008. DATE '08

Conference_Location

Munich

Print_ISBN

978-3-9810801-3-1

Electronic_ISBN

978-3-9810801-4-8

Type

conf

DOI

10.1109/DATE.2008.4484819

Filename

4484819