Practice Handling Tlb Misses (14.2.3) - Page Faults - Computer Organisation and Architecture

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8 questions

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6 sample questions

Question 1.
What is a TLB miss?
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Think about what happens when a required entry is not available.
Question 2.
What does the valid bit in a page table entry signify?
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What does it mean if a bit is set to 1?
3Question 3.
What happens when a TLB miss occurs?
- OS fetches page table entry
- Data is accessed directly
- Instruction is aborted
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What is the immediate follow-up action when a miss occurs?
4Question 4.
True or False: A valid bit being set to 0 means the page is loaded in physical memory.
- True
- False
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Recall what the valid bit represents.
Question 5.
Describe a scenario where a TLB miss can lead to multiple page faults. How does the OS prevent this from impacting system performance?
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Consider how the order of memory accesses affects the likelihood of faults.
Question 6.
Analyze how different TLB sizes might impact performance in a heavily accessed application. What factors must be considered?
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Think about the relationship between TLB size and access patterns.

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