Why Fast Systems Cache (And When Caches Lie)
#caching#cache-aside#read-through#write-through
Why Fast Systems Cache
Caching isn't just a performance trick — it's a fundamental consequence of the physics of memory. Your CPU L1 cache is 4ns. RAM is 100ns. A network round-trip is 500,000ns. Caching is how systems cope with these gaps. Understanding *why* we cache — not just *how* — makes every caching decision obvious instead of mysterious.
Track Syllabus & Deep Dives
The Thundering Herd: When Your Cache Fix Becomes Your Problem
#thundering-herd#cache-stampede#probabilistic-early-expiration#request-coalescing