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Pre-emptive scheduling, is the strategy of temporarily suspending a running process
- a)Before the CPU time slice expires
- b)To allow starving processes to run
- c)When it requests I/O
- d)None of these
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Pre-emptive scheduling, is the strategy of temporarily suspending a ru...
In pre-emptive scheduling suspanding temporarily a running process is done before the CPU time slice expires.
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Pre-emptive scheduling, is the strategy of temporarily suspending a ru...
Pre-emptive scheduling is a strategy used by operating systems to temporarily suspend a running process before the CPU time slice expires. This allows other processes to run and prevents a single process from monopolizing the CPU.
Reason for Pre-emptive Scheduling
Pre-emptive scheduling is necessary when there are multiple processes running simultaneously on a single CPU. Without pre-emptive scheduling, a long-running process could hog the CPU and prevent other processes from running, leading to poor system performance.
How Pre-emptive Scheduling Works
In pre-emptive scheduling, the CPU is allocated to a process for a fixed amount of time, known as a time slice. When the time slice expires, the operating system interrupts the current process and allocates the CPU to another process. This ensures that all processes get a fair share of CPU time and that no process monopolizes the CPU.
Advantages of Pre-emptive Scheduling
Pre-emptive scheduling has several advantages, including:
1. Better system performance: Pre-emptive scheduling ensures that all processes get a fair share of CPU time, which leads to better system performance.
2. Fairness: Pre-emptive scheduling ensures that no process monopolizes the CPU, which is fair to all processes.
3. Responsiveness: Pre-emptive scheduling allows the operating system to quickly respond to user input and other events.
Conclusion
Pre-emptive scheduling is a strategy used by operating systems to ensure that all processes get a fair share of CPU time. It temporarily suspends a running process before the CPU time slice expires, allowing other processes to run and preventing a single process from monopolizing the CPU. This leads to better system performance, fairness, and responsiveness.
Reason for Pre-emptive Scheduling
Pre-emptive scheduling is necessary when there are multiple processes running simultaneously on a single CPU. Without pre-emptive scheduling, a long-running process could hog the CPU and prevent other processes from running, leading to poor system performance.
How Pre-emptive Scheduling Works
In pre-emptive scheduling, the CPU is allocated to a process for a fixed amount of time, known as a time slice. When the time slice expires, the operating system interrupts the current process and allocates the CPU to another process. This ensures that all processes get a fair share of CPU time and that no process monopolizes the CPU.
Advantages of Pre-emptive Scheduling
Pre-emptive scheduling has several advantages, including:
1. Better system performance: Pre-emptive scheduling ensures that all processes get a fair share of CPU time, which leads to better system performance.
2. Fairness: Pre-emptive scheduling ensures that no process monopolizes the CPU, which is fair to all processes.
3. Responsiveness: Pre-emptive scheduling allows the operating system to quickly respond to user input and other events.
Conclusion
Pre-emptive scheduling is a strategy used by operating systems to ensure that all processes get a fair share of CPU time. It temporarily suspends a running process before the CPU time slice expires, allowing other processes to run and preventing a single process from monopolizing the CPU. This leads to better system performance, fairness, and responsiveness.
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Pre-emptive scheduling, is the strategy of temporarily suspending a running processa)Before the CPU time slice expiresb)To allow starving processes to runc)When it requests I/Od)None of theseCorrect answer is option 'A'. Can you explain this answer?
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