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An important issue related to Real-Time Operating Systems is the handling of interrupts, timers, mutexes, watchdog timers, synchronization and communication directives as unitary events. In order to obtain a predictable response time for the different types of events that occur simultaneously, it is necessary to have a prioritization mechanism for them. Therefore, this paper proposes a hardware mechanism...
In the most Real Time Operating Systems (RTOS), the interrupt handlers are implemented in software and they can increase the response time to external events and the overload of the CPU. Therefore, the newest RTOSs implement in hardware the interrupt handlers in order to eliminate these two problems. By analyzing traditional models for the management of interrupts, we can emphasize their inability...
System response time is a key element in hard real time systems. In classical Real Time Operating Systems (RTOS) based on software schedulers, overhead and jitter are a major problem when the number of tasks and the rate of context switches are high. Increased values for those parameters over admissible values can lead to performance degradation, increased power consumption or even deadline misses...
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