{
  "schemaVersion": 1,
  "kind": "pp-doclayout-v3-webgpu-fp16-experiment",
  "generatedAt": "2026-07-13T07:08:17Z",
  "input": {
    "path": "tmp/pdfs/2307.01197.pdf",
    "pageCount": 15
  },
  "runtime": {
    "name": "in-app-browser-webgpu",
    "modelSource": "dev",
    "pipelineWorkers": 1,
    "layoutBatchSize": 1,
    "probeCount": 1
  },
  "artifacts": {
    "fp32": {
      "id": "pp-doclayout-v3-jaxjs",
      "dtype": "float32",
      "weightsSha256": "13492ac1f96d5340caa0f75e8c894a3b7d8e95d7c2e485fd5b671bee9a3df6f3",
      "weightsSizeBytes": 130847572
    },
    "fp16": {
      "id": "pp-doclayout-v3-fp16-jaxjs",
      "dtype": "float16",
      "weightsSha256": "da8613530ea128d8e85d00be530fe02a29830e59308f6dc6c67e12fdb03e6a8f",
      "weightsSizeBytes": 65459939,
      "sizeDeltaBytes": -65387633,
      "sizeDeltaPercent": -49.9723701407
    }
  },
  "selection": {
    "profile": "medium",
    "canonicalModelSetSha256": "6a1599f083822d6e010a48afdb6230f31acf7ad62ca3231173212cd480fcb6e7",
    "resolvedLayoutModel": "pp-doclayout-v3-fp16-jaxjs",
    "hostedArtifactRevision": "78ad71f021ad480ca365c3465aea6d8ed13a4f11",
    "hostedReleaseDescriptorRevision": "f18021b5c38a47c8fa76fab9fa294a74862aec84",
    "fp32FallbackPathExists": false,
    "contractValidatedBeforeRun": true,
    "networkResourceTimingAvailable": false
  },
  "baseline": {
    "model": "pp-doclayout-v3-jaxjs",
    "fullDocumentMs": 89237,
    "page5CheckpointMs": 16676,
    "page10CheckpointMs": 46628,
    "completedPages": 15,
    "failedPages": 0,
    "detectedTables": 14,
    "pagesPerSecond": 0.1680917108
  },
  "candidate": {
    "model": "pp-doclayout-v3-fp16-jaxjs",
    "fullDocumentMs": 74845,
    "page5CheckpointMs": 21067,
    "page10CheckpointMs": 50260,
    "completedPages": 15,
    "failedPages": 0,
    "detectedTables": 14,
    "pagesPerSecond": 0.2004141893,
    "deviceLossOrTimeout": false
  },
  "deltas": {
    "fullDocumentMs": -14392,
    "fullDocumentPercent": -16.1278393491,
    "pagesPerSecondPercent": 19.2290734184,
    "page5CheckpointMs": 4391,
    "page5CheckpointPercent": 26.3312544975,
    "page10CheckpointMs": 3632,
    "page10CheckpointPercent": 7.7893111435
  },
  "quality": {
    "completedPagesExact": true,
    "failedPagesExact": true,
    "tableCountExact": true,
    "frozenFp16LayoutOracle": "pass",
    "frozenOracleEvidence": "precision-experiment.json"
  },
  "safety": {
    "systemMemoryFreePercentBefore": 53,
    "systemMemoryFreePercentAfter": 51,
    "memoryPressureNormalAfter": true,
    "browserWorkerRssMeasured": false,
    "gpuMemoryMeasured": false,
    "liveProbeCountAfter": 0
  },
  "measurementLimitations": [
    "Full-document and checkpoint values are conservative first-observed polling times from one directional run, not a variance estimate.",
    "Page 5 and page 10 were observed at coarse intervals and are upper bounds; both diagnostics regressed relative to the saved FP32 checkpoints.",
    "The table ONNX worker emitted repeated VerifyOutputSizes warnings without page failures; measured wall time includes that logging overhead.",
    "Browser worker network timing and attributable RSS/GPU allocation were unavailable, so no transfer-time or memory gain is claimed."
  ],
  "decision": {
    "status": "accept-canonical-medium-default",
    "canonicalProfile": "medium",
    "canonicalLayoutModel": "pp-doclayout-v3-fp16-jaxjs",
    "cliWasmRisk": "known-warm-memory-failure",
    "hostedHfAvailability": "published-immutable",
    "productionPublicationAllowed": true,
    "reason": "One bounded WebGPU run preserved completion and table-count gates while reducing conservative full-document wall time by 16.13%. The canonical medium profile selects FP16 by explicit product decision and is now published through immutable artifact and release-descriptor commits; the prior WASM memory rejection still applies."
  }
}