ARC
Adaptive Replacement Cache
Teaching ARC: T1 recency, T2 frequency, ghosts B1/B2, target p. BusTub ArcReplacer is the same family (mru_/mfu_/ghosts + mru_target_size_) with course-specific AccessType hooks — not a line-for-line Megiddo–Modha clone.
IdleStep a query
ARC: T1 recency, T2 frequency; ghosts B1/B2 adapt target p.
hits 0 · misses 0 · Space / ← →
ARC Cache Replacement