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A scheduling algorithm schedules a set of tasks in such way that the tasks are completed before their deadlines reached. There are varieties of algorithms for scheduling of periodic tasks on multiprocessor under partitioning scheme or global scheduling scheme. The most common scheduling algorithms are: Rate Monotonic (RM), Deadline Monotonic (DM), Earliest Deadline First (EDF) and Least Laxity First (LLF). In this book, we have proposed a new algorithm titled as D_EDF which is modified conventional EDF algorithm. The proposed algorithm along with EDF, LLF, RM, DM algorithms are simulated and...

Resource allocation is one of the challenging problems for real-time operating system. Priority inheritance protocol (PIP) and Priority ceiling protocol are very popular for resource allocation in real time operating system. Both algorithms have certain advantages and disadvantages. In priority inheritance protocol when any higher priority job is scheduled and if that job requires the resource which is acquired by lower priority job than lower priority job inherits the priority of currently scheduled job and it will be executed when context switch occurs.Generally context switching time taken...