by needing to wait, reaching the end of its execution or being forcibly killed) at any time, a currently running thread could cease to be runnable.Scheduler will consider whether the currently running thread on each CPU has periodically, via an interrupt routine, the.Thread that is currently running on a CPU. Illustrations of the relationship between Java thread priorityĪt key moments, the thread scheduler considers whether to switch the (See our discussion of thread priority for Partly on heuristics about its recent resource usage and partly on a nice value. Hand, a thread's quantum is dynamically adjusted when it is scheduled, depending In Windows, a thread's quantum allocation is fairly stable. Not be calculated in whole numbers of clock ticks, e.g. This last point shows that quanta may actually Has used 1/3 of a tick during that timeslice. It is assumed that a process that enters a wait state mid-way through a clock tick Have to be made in assessing how much time a thread has used. Time making fine-tuned measurements, certain simplifications
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