Day 01Part 18- Operating system- Process State Diagram new ready running waiting and termination
Day 01Part 18- Operating system- Process State Diagram new ready running waiting and termination
In operating systems, a process state diagram illustrates the various stages a process undergoes during its lifecycle. Understanding these states is crucial for grasping how an operating system manages and schedules processes.
Primary Process States:
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New: The process is being created.
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Ready: The process is prepared to run and is waiting for CPU allocation.
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Running: The process is currently executing instructions on the CPU.
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Waiting (Blocked): The process cannot proceed until a specific event occurs (e.g., I/O completion).
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Terminated: The process has finished execution and is awaiting removal from memory.
Process State Transitions:
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New → Ready: After creation, the process moves to the ready state, awaiting CPU time.
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Ready → Running: The scheduler assigns CPU to the process, transitioning it to running.
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Running → Waiting: If the process requires I/O or an event, it moves to waiting.
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Waiting → Ready: Once the event is resolved, the process returns to ready.
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Running → Terminated: Upon completion, the process terminates.
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Running → Ready: In preemptive multitasking, a process may return to ready if interrupted.
These states and transitions enable the operating system to manage multiple processes efficiently, ensuring optimal resource utilization and system performance.
For a visual representation and more details, consider this resource:
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