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What are preemptive and non-preemptive algorithms?

written 7.0 years ago by priyad84 • 350

modified 2.7 years ago by yashbeer ★ 11k

operating systems

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written 2.7 years ago by DevarenjiniP • 3.2k

modified 2.7 years ago by yashbeer ★ 11k

Preepmtive	Non-preemptive
1. Resources allocated toprocess for limited time.	1. Resources alotted till process is complete/switches to waiting.
2. Processes can be interrupted.	2. Process cannot be interrupted.
3. Low priority process maystarve.	3. Short timed process may starve.
4. Has overheads.	4. No overheads.
5. Flexible.	5. Rigid.
6. Cost associated.	6. Not cost associative.
7. Waiting time, Response timeis less	7. Waiting time, Response time ismore.
SRTF (Shortest Response Time First) Priority Round Robin	FIFO / FCFS SJF (Shortest Job First) Priority - Multilevel Queue Scheduling - Multilevel Feed-back Queue Scheduling

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