Practice Fixed Allocation Scheme (21.3.3) - Page Frame Allocation and Thrashing

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6 sample questions

Question 1.
What does equal allocation mean?
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Consider how frames are distributed among multiple processes.
Question 2.
What is thrashing?
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Think about what happens when there are not enough frames for a process.
3Question 3.
What is the main disadvantage of the equal allocation method?
- Fairness among processes
- Performance issues for larger processes
- Simplicity in allocation
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Think about how larger programs use more memory.
4Question 4.
True or False: Proportional allocation guarantees perfect performance.
- True
- False
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Consider what other factors affect performance.
Question 5.
Given 200 frames and 4 processes needing 20, 50, 80, and 100 pages respectively, how would you distribute them using the proportional method?
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Use the proportional allocation formula.
Question 6.
Propose a strategy for reallocating frames dynamically between processes during execution.
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Consider how frequently processes access certain frames.

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