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A Simple Policy: FIFO

Explore the FIFO page replacement policy for managing virtual memory pages, understanding its simple queue-based eviction method. Learn about its performance impacts, including the notable Belady's Anomaly where increasing cache size can worsen hit rates. This lesson helps you grasp fundamental concepts and limitations of FIFO compared to other policies.

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Many early systems avoided the complexity of trying to approach optimal and employed very simple replacement policies. For example, some systems used FIFO (first-in, first-out) replacement, where ...