期刊名称：International Journal of Computer Science & Technology
印刷版ISSN：2229-4333
电子版ISSN：0976-8491
出版年度：2013
卷号：4
期号：2
页码：75-83
语种：English
出版社：Ayushmaan Technologies
摘要：Existing real-time explore focuses on how to develop, model and enforce timeliness insures for task sets whose rightness has a temporal aspect. However, the ensuing systems often demonstrate poor resource usage due to the resource scheduler reserving more imaginations than required in order to ensure that admitted agendas can be satisfied under worst case considerations. Weakening the guarantees leads to the known conceptions of firm and soft realtime tasks, but we think the paradigm needs to be shifted further, reifying efficient usage. With Quality-Assuring Scheduling (QAS) we demonstrated such an algorithm. However, its practical pertinency is limited to uniform and harmonic periods, due to its complexness for arbitrary periods. To over-come this restriction, we introduce Quality-Rate-Monotonic Scheduling (QRMS), which, although slightly more bearish, is less complex compared to QAS. The admission assures is again based on a probabilistic model to ensure that a requested fraction of jobs is successfully executed. Thus, the amount of missed deadlines can be outwardly con-trolled, even in sustained overload situations.
关键词：Real Time Database Management System;Real Time Scheduling; Commit Processing;Processor Overload
