Cache Placement: Steady-State Snapshot

Model how cache capacity, hit rate, hot-key skew, and invalidation pressure split load between the cache and the primary database, and what happens to that load if the cache becomes unavailable. This is a single steady-state evaluation of your inputs, not a time-evolving simulation: it does not model warm-up, traffic growth, or real hot-key distributions over time.

The effective hit rate shown here is computed from your inputs, not an independently measured or predicted production value — treat it as a directional estimate under the assumptions you entered, not a promise about what your real cache will do.