Who Gets Evicted? LRU, LFU, and the Algorithms Inside Real Caches
Caches are always full. How eviction policies decide what to throw out, why LRU gets fooled by scans, and how to build an LRU yourself. Part 3 of 8.
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Caching 101: The 100x Trick Behind Every Fast System
What a cache actually is, why it works, and the one formula that tells you if yours is helping. Part 1 of an 8-part series on caching.