DocumentCode :
2352354
Title :
Dynamic replacement of software in hard real-time systems: practical assessment
Author :
Alonso, Alejandro ; Casillas, Ignacio ; De La Puente, Juan A.
Author_Institution :
Ciudad Univ., Madrid, Spain
fYear :
1995
fDate :
14-16 Jun 1995
Firstpage :
26
Lastpage :
33
Abstract :
There are systems that cannot be stopped without losses. However, these systems require modifications during their operational life. Dynamic software replacement is a mechanism that allows components updating without stopping the whole system. The paper deals with dynamic replacement in hard real time systems. A protocol for dynamic replacement of software components in embedded hard real time systems was described and proved theoretically. In order to assess it practically, an implementation of the most critical aspects of this protocol has been carried out. Special attention has been devoted to ensure that the protocol does not interfere with the fulfillment of the deadlines of the real time processes and that the schedulability test can be applied
Keywords :
protocols; real-time systems; scheduling; software maintenance; dynamic software replacement; embedded hard real time systems; hard real-time systems; non stop systems; priority based scheduling; protocol; real time processes; schedulability test; software components; Dynamic scheduling; Embedded software; Embedded system; Guidelines; Job shop scheduling; Production; Protocols; Real time systems; Telecommunication standards; Testing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Real-Time Systems, 1995. Proceedings., Seventh Euromicro Workshop on
Conference_Location :
Odense
ISSN :
1068-3070
Print_ISBN :
0-8186-7112-2
Type :
conf
DOI :
10.1109/EMWRTS.1995.514288
Filename :
514288
Link To Document :
بازگشت