{ "date": "2026-09-29", "scope": [ "direct periodicity heuristic", "perturbation series approximation", "sparse active continuation state", "dynamic failure-guided multi-reference", "CPU Worker fallback" ], "baseline": { "path": "../mandelbrot_work/index.html", "sha256": "8355da57e2f546c4e1cbeb2237e9dbfb65168b6d4c254929a2b02078c086a935", "bytes": 208576, "gzip9Bytes": 52702 }, "integrated": { "sha256": "544820c5024cf6d56e012db6d1bec3ddfcef5d833691b890baa64b26c5c2ee5a", "bytes": 223672, "gzip9Bytes": 57375 }, "regression": { "passes": 5, "timesSeconds": [ 0.08, 0.09, 0.07, 0.07, 0.09 ], "medianSeconds": 0.08, "status": "PASS", "kernelCount": 19 }, "webGpuBrowserSmoke": { "status": "UNAVAILABLE_IN_CONTAINER", "reason": "Headless Chromium SwiftShader/EGL initialization failed before WebGPU could run; no real GPU frame-latency claim is made." }, "benchmarks": { "date": "2026-09-29T08:28:46.101Z", "periodicity": { "w": 96, "h": 64, "maxIter": 8192, "oracleIter": 65536, "rows": [ { "view": "overview", "productionBackend": "direct", "pixels": 6144, "baseWork": 884420, "heuristicWork": 133404, "workReduction": 0.849162162773343, "candidates": 96, "falseCandidates": 0, "baseLimit": 104, "heuristicLimit": 8, "diagnosticIfForcedDirect": null, "ms": 68.786555 }, { "view": "period3-bulb", "productionBackend": "direct", "pixels": 6144, "baseWork": 50331648, "heuristicWork": 460156, "workReduction": 0.9908575216929117, "candidates": 6144, "falseCandidates": 0, "baseLimit": 6144, "heuristicLimit": 0, "diagnosticIfForcedDirect": null, "ms": 3092.6467549999998 }, { "view": "period3-core", "productionBackend": "direct", "pixels": 6144, "baseWork": 50331648, "heuristicWork": 442395, "workReduction": 0.991210401058197, "candidates": 6144, "falseCandidates": 0, "baseLimit": 6144, "heuristicLimit": 0, "diagnosticIfForcedDirect": null, "ms": 3061.9720069999994 }, { "view": "seahorse-boundary", "productionBackend": "direct", "pixels": 6144, "baseWork": 410111, "heuristicWork": 410111, "workReduction": 0, "candidates": 0, "falseCandidates": 0, "baseLimit": 0, "heuristicLimit": 0, "diagnosticIfForcedDirect": null, "ms": 17.153881000000183 }, { "view": "seahorse-deep", "productionBackend": "fast-extended", "pixels": 6144, "baseWork": 36579905, "heuristicWork": 6167354, "workReduction": null, "candidates": 0, "falseCandidates": 0, "baseLimit": 4304, "heuristicLimit": 4304, "diagnosticIfForcedDirect": { "workReduction": 0.8314004916087125, "candidates": 4125, "falseCandidates": 12 }, "ms": 2289.795112 }, { "view": "exterior", "productionBackend": "direct", "pixels": 6144, "baseWork": 686432, "heuristicWork": 137063, "workReduction": 0.8003254510279241, "candidates": 72, "falseCandidates": 0, "baseLimit": 79, "heuristicLimit": 7, "diagnosticIfForcedDirect": null, "ms": 37.95325000000048 } ], "note": "Production DIRECT_F32 rule with two attracting-cycle confirmations. FAST/perturbation periodic early-stop is intentionally disabled." }, "series": { "rows": [ { "span": 1e-05, "jump": 53, "errorLog2": -22.11596292311006, "maxAbsError": 7.112067409017996e-09, "maxRelativeError": 9.415623690713784e-05, "refLen": 1200, "buildMs": 32.31590200000028 }, { "span": 1e-07, "jump": 446, "errorLog2": -22.302471602690176, "maxAbsError": 7.736805567567409e-09, "maxRelativeError": 0.0031991190750368034, "refLen": 1200, "buildMs": 33.50016399999913 }, { "span": 1e-09, "jump": 930, "errorLog2": -22.038152635655024, "maxAbsError": 7.459933177532973e-09, "maxRelativeError": 1.015603159369818e-05, "refLen": 1200, "buildMs": 29.815043000000514 }, { "span": 1e-11, "jump": 1037, "errorLog2": -23.96377927072575, "maxAbsError": 2.2791360188558774e-09, "maxRelativeError": 4.948137247650717e-06, "refLen": 1200, "buildMs": 37.88702799999919 } ], "note": "Production fast-reference worker output. Error compares packed 4th-order series against direct perturbation over 8 screen-domain deltas." }, "sparseActiveState": { "rows": [ { "preset": "fast", "pixels": 524288, "activeRatio": 1, "capacity": 524288, "oldBytes": 23068672, "newBytes": 23134208, "reduction": -0.0028409090909091717 }, { "preset": "fast", "pixels": 524288, "activeRatio": 0.25, "capacity": 164096, "oldBytes": 23068672, "newBytes": 7285760, "reduction": 0.6841708096590908 }, { "preset": "fast", "pixels": 524288, "activeRatio": 0.1, "capacity": 65792, "oldBytes": 23068672, "newBytes": 2960384, "reduction": 0.8716708096590909 }, { "preset": "fast", "pixels": 524288, "activeRatio": 0.01, "capacity": 6810, "oldBytes": 23068672, "newBytes": 365176, "reduction": 0.9841700467196378 }, { "preset": "standard", "pixels": 1048576, "activeRatio": 1, "capacity": 1048576, "oldBytes": 46137344, "newBytes": 46268416, "reduction": -0.0028409090909091717 }, { "preset": "standard", "pixels": 1048576, "activeRatio": 0.25, "capacity": 327936, "oldBytes": 46137344, "newBytes": 14560256, "reduction": 0.6844149502840908 }, { "preset": "standard", "pixels": 1048576, "activeRatio": 0.1, "capacity": 131328, "oldBytes": 46137344, "newBytes": 5909504, "reduction": 0.8719149502840909 }, { "preset": "standard", "pixels": 1048576, "activeRatio": 0.01, "capacity": 13364, "oldBytes": 46137344, "newBytes": 719088, "reduction": 0.9844141873446378 }, { "preset": "high", "pixels": 4194304, "activeRatio": 1, "capacity": 4194304, "oldBytes": 184549376, "newBytes": 185073664, "reduction": -0.0028409090909091717 }, { "preset": "high", "pixels": 4194304, "activeRatio": 0.25, "capacity": 1310976, "oldBytes": 184549376, "newBytes": 58207232, "reduction": 0.6845980557528408 }, { "preset": "high", "pixels": 4194304, "activeRatio": 0.1, "capacity": 524544, "oldBytes": 184549376, "newBytes": 23604224, "reduction": 0.8720980557528409 }, { "preset": "high", "pixels": 4194304, "activeRatio": 0.01, "capacity": 52685, "oldBytes": 184549376, "newBytes": 2842428, "reduction": 0.9845980080691251 } ], "note": "Production allocation: 32 B state + 2x4 B queues + 4 B pixel map per active slot, plus 1-bit membership bitmap. Capacity adds 25% + 256 headroom." }, "multiReference": { "maxGuidedPasses": 3, "w": 64, "h": 40, "maxIter": 1200, "rows": [ { "view": "seahorse-1e-5", "grid": 1, "references": 1, "total": 2560, "refEnd": 0, "mismatchClass": 3, "mismatchIter": 155, "mismatchRate": 0.001171875 }, { "view": "seahorse-1e-5", "grid": 2, "references": 5, "total": 2560, "refEnd": 0, "mismatchClass": 3, "mismatchIter": 155, "mismatchRate": 0.001171875 }, { "view": "seahorse-1e-5", "grid": 3, "references": 9, "total": 2560, "refEnd": 0, "mismatchClass": 3, "mismatchIter": 155, "mismatchRate": 0.001171875 }, { "view": "seahorse-1e-7", "grid": 1, "references": 1, "total": 2560, "refEnd": 0, "mismatchClass": 66, "mismatchIter": 74, "mismatchRate": 0.02578125 }, { "view": "seahorse-1e-7", "grid": 2, "references": 5, "total": 2560, "refEnd": 0, "mismatchClass": 37, "mismatchIter": 41, "mismatchRate": 0.014453125 }, { "view": "seahorse-1e-7", "grid": 3, "references": 9, "total": 2560, "refEnd": 0, "mismatchClass": 50, "mismatchIter": 67, "mismatchRate": 0.01953125 } ], "note": "CPU f32 perturbation locality surrogate. Production selects up to three additional references from failure clusters instead of fixed grids." }, "cpuFallback": { "w": 640, "h": 360, "iter": 350, "threads": 4, "one": { "medianMs": 97.22207600000002, "times": [ 115.15600200000154, 86.49102299999868, 97.22207600000002, 97.75022499999977, 95.21002200000112, 105.08147800000006, 81.41742200000044 ], "work": 2658084, "escaped": 176648, "operationLimit": 3394, "heuristicInterior": 1654 }, "multi": { "medianMs": 36.02884199999971, "times": [ 100.63864199999989, 61.91339699999844, 50.152170999999726, 34.4066870000006, 34.23579900000004, 36.02884199999971, 34.373131000000285 ], "work": 2658084, "escaped": 176648, "operationLimit": 3394, "heuristicInterior": 1654 }, "speedup": 2.698451312978663, "workMatch": true, "escapedMatch": true, "operationLimitMatch": true, "heuristicMatch": true, "note": "Production CPU fallback Worker source executed under node:worker_threads shim." }, "sourceAudit": { "heuristicClass": true, "strictDisablesPeriodicity": true, "seriesBinding": true, "compactPixelMap": true, "multiReferencePasses": true, "cpuFallback": true }, "environment": { "node": "v22.16.0", "cpus": 5, "platform": "linux", "arch": "x64" } }, "assessment": { "periodicity": "ADOPT_DIRECT_ONLY", "seriesApproximation": "ADOPT_EXPERIMENTAL_INTERACTIVE", "sparseActiveState": "ADOPT", "dynamicMultiReference": "ADOPT_CAPPED_FAILURE_GUIDED", "cpuFallback": "ADOPT_COMPATIBILITY_PATH" } }