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A software is real time not when it is as fast as possible, but when it is guaranteed that a process completes within some determined time slot. In a soft real time system, it is good but not absolutely necessary that this is guaranteed. E.g. in a game, the calculations necessary for a frame should complete within the period of a frame, or the framerate will ...


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From wikipedia: A key characteristic of an RTOS is the level of its consistency concerning the amount of time it takes to accept and complete an application's task; the variability is jitter. The important thing is that jitter is quantified for the system to be considered real time. The article goes on to say that if the jitter is usually bounded, the ...



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