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2 cards from this section. Quick, good the night before a test.
What is the main purpose of using reference bits in page replacement algorithms?
Think about how we can remember which pages are used often.
What does a clean page mean in the context of memory management?
Consider the difference between a recently edited document and an unused one.
What mechanism does the Approximate LRU algorithm use to track page usage?
Recall what we discussed about how something tracks page access.
Does a dirty page need to be written back to disk before being replaced?
Think about whether you've written changes in a document before closing it.
You have 4 physical page frames and a sequence of page accesses: A, B, C, D, A, B, E, F, C, D. Determine the page fault counts for FIFO and LRU strategies.
Track which pages are in memory and replace based on each algorithm’s rules.
Analyze a scenario with mixed usage patterns in memory - a workload with excessive dirty pages. Discuss how this might affect performance based on page replacement strategies.
Consider how often pages must be written and how it affects overall operations.
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