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Journal of applied research and technology
versión On-line ISSN 2448-6736versión impresa ISSN 1665-6423
Resumen
DIAZ-RAMIREZ, Arnoldo; MEJIA-ALVAREZ, Pedro y LEYVA-DEL-FOYO, Luis E.. Comprehensive Comparison of Schedulability Tests for Uniprocessor Rate-Monotonic Scheduling. J. appl. res. technol [online]. 2013, vol.11, n.3, pp.408-436. ISSN 2448-6736.
Schedulability conditions are used in real-time systems to verify the fulfillment of the temporal constraints of task sets. In this paper, a performance analysis is conducted for the best-known real-time schedulability conditions that can be used in online admission control on uni-processor systems executing under the Rate-Monotonic scheduling policy. Since Liu and Layland introduced the Rate-Monotonic scheduling algorithm, many research studies have been conducted on the schedulability analysis of real-time periodic task sets. However, in most cases, the performance of the proposed schedulability conditions were compared only against the Liu and Layland test and not against the remaining schedulability tests. The goal of this paper is to provide guidelines for system designers in order to decide which schedulability condition provides better performance under different task characteristics. Extensive simulation experiments were conducted to evaluate the inexact schedulability conditions and compare their performance and computational complexity.
Palabras llave : real-time systems; real-time scheduling; rate-monotonic scheduling.