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Write a short note about context switch.
Switching the CPU to another process needs saving the state of the old process and loading the saved state for the new process. This task is recognized as a context switch. The context of a process is symbolize in the PCB of a process it includes the value of the process state, CPU registers, and memory-management information. When a context switch takes place, the kernel accumulates the context of the old process in its PCB and loads the saved context of the new process scheduled to run. Context-switch time is pure overhead for the reason that to machine depending on the memory speed the number of registers that have to be copied, and the subsistence of special instructions. Usual speed range from 1 to 1000 microseconds. Context-switch times are extremely dependent on hardware support.
Evicting the most-recently used (MRU) page does very well on LRU's worst case. In general, however, MRU is a bad idea, since many programs exhibit temporal locality in their memory
What is an effector process? The effector process is a method that verifies itself.The effector process exists in particular criteria.
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The following information is available for three MPS (Master Product Scheduling) items: Product A An 80 unit order is to be started in Week 3.
Write short note on recovery regarding the file system in Windows 2000. In many file systems a power breakdown at the wrong time can damage the file system data structures so s
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Define semaphore A semaphore is a protected abstract or variable data type that constitutes the classic method for restricting access to shared resources like shared memory in
Another solution then would be to keep a pool of threads. Whenever a new task arrives, the system would simply get a thread from pool and set that thread to work on the given task.
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