Discussion
A kernel with a 10 ms tick asked to delay a task by 1 ms will
Answer: D
Correct answer: delay it by up to a whole tick, the resolution being 10 ms
A delay expires on a tick, and the request arrives at an arbitrary point within one, so the actual delay lies between the requested value and that value plus a tick. Asking for less than a tick therefore yields anything up to 10 ms, and shorter delays need a hardware timer rather than the kernel.
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