{
  "slug": "cache-admission",
  "term": "Cache admission",
  "aliases": [
    "cache admission policy"
  ],
  "definition": "Cache admission is the decision to retain a fetched item in a cache or cache segment rather than bypass it.",
  "note": "Admission and eviction answer different questions: whether to keep the candidate, and which resident to remove if space is needed. A miss still needs service when admission is rejected. [tinylfu]",
  "related": [
    "tinylfu",
    "cache-pollution",
    "lru-replacement"
  ],
  "citations": [
    {
      "id": "tinylfu",
      "title": "Einziger, Friedman and Manes. TinyLFU: A Highly Efficient Cache Admission Policy. arXiv:1512.00727v2 (2015), sections 3-5.",
      "url": "https://arxiv.org/pdf/1512.00727v2",
      "accessed": "2026-10-16"
    }
  ],
  "status": "research",
  "advantages": [],
  "limitations": [],
  "supersedes": [],
  "supersededBy": [],
  "firstSeen": null,
  "lastSeen": null,
  "updated": "2026-10-16"
}