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2 cards from this section. Quick, good the night before a test.
What does LRU stand for?
Think about which pages would be replaced first.
Is LRU considered optimal under certain conditions?
Consider when past access patterns can no longer predict future needs.
What does LRU stand for?
Think about the timing of page uses.
True or False: LRU may perform poorly when it faces unpredictable access patterns.
Consider situations where what's next may not reflect what's happened.
Imagine a scenario where a computer system has limited RAM. Given the access pattern for pages A, B, C, A, B, D, A, C, can you simulate the state of the memory frame using LRU after each page is accessed?
Track the history of page accesses carefully to see how replacements occur.
Discuss a situation in which implementing a hardware clock for timestamps could lead to inefficiencies in LRU. What would be a potential improvement?
Think about how too much detail can lead to delays when speed is crucial.
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