{
  "schemaVersion": "fidc-daily-snapshot-view-stock-state-rejection/v1",
  "measuredAt": "2026-09-05T00:30:00+08:00",
  "host": "192.168.31.177",
  "candidateCommit": "1df0081479b93a051f9a40d2acf7060d0eb6929d",
  "revertCommit": "1f10a6bb3decdd40c77397a7596c6f23a9f90a18",
  "candidate": {
    "description": "carry symbol_id in EligibleUniverseSnapshot and pass pre-resolved execution/factor DailySnapshotView values into stock-state construction",
    "componentBenchmark": {
      "symbols": 6000,
      "rounds": 200,
      "dateMapLookupSeconds": 0.020211,
      "dailyViewLookupSeconds": 0.006410,
      "speedup": 3.1530421216848675,
      "equal": true
    },
    "fiveYearRuns": [
      {"runId": "btr_1788538826285_2693431_0", "engineSeconds": 8.075},
      {"runId": "btr_1788538854544_2693431_1", "engineSeconds": 8.488},
      {"runId": "btr_1788538868210_2693431_2", "engineSeconds": 10.455},
      {"runId": "btr_1788538887159_2693431_3", "engineSeconds": 10.672},
      {"runId": "btr_1788538903432_2693431_4", "engineSeconds": 11.284},
      {"runId": "btr_1788538920072_2693431_5", "engineSeconds": 9.985}
    ],
    "hotMedianEngineSeconds": 10.455,
    "runnerBinarySha256": "cbe20d1bd5c5e02372bd310107a1f4e41aaa9f256b3c31f79c6ad000648d1854"
  },
  "restored": {
    "fiveYearRuns": [
      {"runId": "btr_1788539286281_2739751_0", "engineSeconds": 7.118},
      {"runId": "btr_1788539313845_2739751_1", "engineSeconds": 6.702},
      {"runId": "btr_1788539325631_2739751_2", "engineSeconds": 7.093},
      {"runId": "btr_1788539338757_2739751_3", "engineSeconds": 6.509}
    ],
    "hotMedianEngineSeconds": 6.702,
    "candidateRegressionPercent": 55.99820948970456,
    "runnerBinarySha256": "e33dd75aa7b481975c0991cf634d07900cdefa51756802e28e64f18b980a83dc",
    "matchesPreCandidateRunnerSha256": true
  },
  "businessContract": {
    "startDate": "2021-08-23",
    "endDate": "2026-08-28",
    "frequency": "1d",
    "matchingType": "next_bar_open",
    "totalReturn": 0.9219861819172002,
    "tradeCount": 26088,
    "canonicalSha256": "b42fea66237d06eadb24f6b8c9e2760e7319fe3699f315b99e01f433ef2aa234",
    "resultStoreSha256": "92343fb369fea68b2544b654151c5c43a935940580b14afbe8eefb3844f72a54",
    "allRunsConsistent": true
  },
  "profile": {
    "candidateRunId": "btr_1788538966659_2693431_6",
    "candidateEngineSeconds": 10.566,
    "stockStatePercent": 28.14,
    "adjustedCloseMovingAveragePercent": 8.27,
    "stableSortPercent": 5.46,
    "mallocPercent": 5.12,
    "note": "The removed map lookup symbols disappeared, but their component savings were too small to offset the larger universe row and generalized optional-view state path."
  },
  "remoteArtifacts": [
    "/srv/fidc/canonical/run/fidc-private/evidence/daily-view-after-20260905.json",
    "/srv/fidc/canonical/run/fidc-private/evidence/daily-view-profile-20260905/perf.data",
    "/srv/fidc/canonical/run/fidc-private/evidence/daily-view-profile-20260905/perf-report.txt",
    "/srv/fidc/canonical/run/fidc-private/evidence/daily-view-reverted-20260905.json"
  ],
  "decision": {
    "status": "rejected_and_removed",
    "reason": "a positive lookup microbenchmark did not translate to end-to-end performance; the same frozen five-year workload became about 56 percent slower",
    "productionEngineCommit": "1f10a6bb3decdd40c77397a7596c6f23a9f90a18"
  }
}