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Titolo:
Analysis of checkpointing for real-time systems
Autore:
Punnekkat, S; Burns, A; Davis, R;
Indirizzi:
Malardalen Univ, Dept Comp Engn, Vasteras, Sweden Malardalen Univ Vasteras Sweden Univ, Dept Comp Engn, Vasteras, Sweden Univ York, Dept Comp Sci, York YO1 5DD, N Yorkshire, England Univ York York N Yorkshire England YO1 5DD YO1 5DD, N Yorkshire, England
Titolo Testata:
REAL-TIME SYSTEMS
fascicolo: 1, volume: 20, anno: 2001,
pagine: 83 - 102
SICI:
0922-6443(200101)20:1<83:AOCFRS>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
TASKS; RECOVERY;
Keywords:
scheduling; checkpoints; fixed priority scheduling; optimal checkpointing; fault tolerant scheduling;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
33
Recensione:
Indirizzi per estratti:
Indirizzo: Punnekkat, S Malardalen Univ, Dept Comp Engn, Vasteras, Sweden Malardalen Univ Vasteras Sweden omp Engn, Vasteras, Sweden
Citazione:
S. Punnekkat et al., "Analysis of checkpointing for real-time systems", REAL-TIME S, 20(1), 2001, pp. 83-102

Abstract

Predictable performance in the event of failures is of paramount importance in most safety critical real-time systems. Various hardware as well as software fault-tolerant techniques are employed towards this goal among whichcheckpointing is a relatively cost-effective scheme. Since checkpointing schemes depend on time redundancy, they could affect the correctness of the system by causing deadlines to be missed. This paper provides exact schedulability tests for fault tolerant task sets under a specified failure hypothesis and employing checkpointing to assist in fault recovery. The effects of checkpointing strategies on task response time are analysed and some insights for optimal checkpointing are provided. The emphasis here is on utilizing this analysis as an off-line design support tool.

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Documento generato il 07/07/20 alle ore 12:32:51