Practice Global Frame Allocation (21.4.2) - Page Frame Allocation and Thrashing
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Global Frame Allocation

Practice - Global Frame Allocation

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Practice Questions

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Question 1 Easy

What is a page-fault?

💡 Hint: Think about what happens when a program requests data that isn't immediately accessible.

Question 2 Easy

Define thrashing.

💡 Hint: Consider the consequences of insufficient memory allocation.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is thrashing?

A scenario with efficient memory allocation
A situation where a process spends more time swapping pages than executing
An optimal page replacement strategy

💡 Hint: Think about what happens when memory is insufficient.

Question 2

True or False: Fixed allocation guarantees optimal performance for all processes.

True
False

💡 Hint: Consider if all processes truly have the same needs.

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Challenge Problems

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Challenge 1 Hard

Consider a system with 100 frames and 4 processes: Process A requires 40 frames, Process B requires 30 frames, Process C requires 20 frames, and Process D requires 10 frames. What could be an effective allocation strategy?

💡 Hint: Think about how you would divide the 100 frames assigned based on the needs of each process.

Challenge 2 Hard

If increasing the number of processes in the system led to thrashing, what systematic changes could be made to improve performance?

💡 Hint: Consider if there are overload conditions that cause frame distribution issues and how you can solve them.

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