Fixed priorities or EDF for distributed real-time systems?
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Although fixed priority (FP) scheduling is the most popular online scheduling policy in industrial environments, the earliest deadline first (EDF) policy is starting to get more attention, given its benefits in terms of increased resource usage. A comparison between FP and EDF under several aspects is presented in [1] for single-processor systems, showing that FP does not always have the commonly attributed advantages over EDF.
[1] Giorgio C. Buttazzo,et al. Rate Monotonic vs. EDF: Judgment Day , 2003, Real-Time Systems.
[2] J. Javier Gutiérrez,et al. Schedulability Analysis and Optimization of Heterogeneous EDF and FP Distributed Real-Time Systems , 2011, 2011 23rd Euromicro Conference on Real-Time Systems.
[3] Patricia López Martínez,et al. Modeling distributed real-time systems with MAST 2 , 2013, J. Syst. Archit..