{
 "_doc": "The lab's current claim and limits for one result, copied word for word from its own list of results (top40.json) at the commit named under source. They are the portfolio's current text for this id, which the portfolio released for publication on 2026-10-05.",
 "id": "inference-limits:mooncake-real-trace",
 "title": "Measured on a real third-party production trace",
 "claim": "On 2,000 requests of the real Mooncake FAST'25 conversation trace, 28.91% of KV blocks are reuse-eligible, and at the headline 1,939-block capacity this repository's simulated lookahead policy achieves 4.852% against a computed clairvoyant (Belady) optimum of 23.465% -- a 79.32% gap. All four policy arms are simulations over the frozen fixture; no deployed prefix cache was measured.",
 "limits": "A clairvoyant optimum is NOT achievable by any online policy, so 79.32% is an upper bound on OPPORTUNITY, not a deliverable. One trace, one snapshot; block granularity is an assumption. The same trace produced a standing negative — NEG-F5-30: our F2 closed form fails on 28 of 29 blocks on it. A3 2026-09-09: the old sentence said \"current prefix-cache eviction achieves 4.85%\", naming neither policy nor capacity. belady_gap_cert.json carries headline_capacity_blocks 1939 and pct_of_belady_lookahead 20.68, so 0.04852 is the simulated lookahead arm at that capacity; simulated LRU there is 0.04836 and the capacity_sweep has four rows with different numbers in each. I1 REWRITE 2026-09-02 (S04): reproduce_command is now the producer that scripts/check_cert_regen_drift.py ran (reports/peer_review_2026-09/regen_drift.json); the former python3 -c reader is kept as reader_command and is a transcription, not a reproduction.",
 "source": {
  "lab": "interconnect lab",
  "commit": "21c0c4194d8ab615b585e64efa57c86052eacf81",
  "file": "top40.json",
  "sha256": "c4c9b09c6125ac9961a1e2d90791977971d29344874f122fa57a91779c0e614e",
  "bytes": 300543,
  "entry_id": "mooncake-real-trace",
  "claim_sha256": "aa65b97429b4dfbd3c309bf19c4fbf3d3a8dff2a8dd668809ff454613e164b7c",
  "limits_sha256": "f69ffa2d8daeb7a919f9c82c444ca70fca13e23b7dd9edf9896346c23260574f"
 }
}