Why is Linux not RTOS?
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Hi, Why is Linux kernel considered a (hard) realtime OS? I already understand the basic reason is that the linux kernel does not guarantee that a task will be completed on time. But I would appreciate answers in terms of more of kernel jargons. What stops us from classifying kernel as hard RTOS? Is it because at times the kernel is non-preemptive (for e.g. while holding spinlocks)? Has it got something to do with interrupt latency / scheduling latency etc? Is the behaviour of the kernel (when it is preemptive) similar to hard real time OS ?? Thanks, Rick - To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs