as-cache · phase-shift

How a multi-armed bandit picks the eviction policy

The cache holds seven policies at once: one serves the traffic, the rest run as shadows and measure what would have happened had they been serving. Every epoch the bandit looks at their hit rates and decides which one to make active. Scrub along the timeline — below it you can see what the bandit knew at that moment and why it chose what it chose.

Show as a table

Policy	Hit rate	Hits	Misses	Role