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fidc-backtest-engine/docs/evidence/lazy-expression-scope-rejection-20260905.json
2026-09-05 04:06:46 +08:00

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{
"schemaVersion": "fidc-lazy-expression-scope-rejection/v1",
"measuredAt": "2026-09-05T04:06:00+08:00",
"host": "192.168.31.177",
"candidateCommit": "1b44928",
"revertCommit": "229ca8332df050c6961f73bd1a17de0dab583cf0",
"restoredRunnerBinarySha256": "3e69af42e41321d31c69b552cf22d7033ce1ea8d94305a32e32461148cdbfc60",
"candidate": {
"description": "add closure-based lazy SelectiveExpressionScope bindings for dates, order/process state, stock strings, and position availability",
"primaryHotEngineSeconds": [3.838, 3.867, 4.017, 3.931, 3.866],
"primaryHotMedianEngineSeconds": 3.867,
"secondaryEngineSeconds": [3.664, 3.649, 3.693, 3.767],
"secondaryMedianEngineSeconds": 3.693
},
"acceptedBaseline": {
"primaryMedianEngineSeconds": 3.896,
"secondaryMedianEngineSeconds": 3.582
},
"observed": {
"primaryImprovementPercent": 0.744353182751538,
"secondaryRegressionPercent": 3.098827470686773
},
"rollbackBatchExcluded": {
"secondaryEngineSeconds": [5.343, 5.352, 6.996],
"hostLoadAverage": 28.38,
"reason": "managed factor workload changed phase after deployment; this batch is retained for correctness only"
},
"businessContract": {
"primaryTotalReturn": 0.9219861819172002,
"primaryTradeCount": 26088,
"primaryCanonicalSha256": "b42fea66237d06eadb24f6b8c9e2760e7319fe3699f315b99e01f433ef2aa234",
"primaryResultStoreSha256": "92343fb369fea68b2544b654151c5c43a935940580b14afbe8eefb3844f72a54",
"secondaryTotalReturn": 1.1342962298106998,
"secondaryTradeCount": 19404,
"secondaryCanonicalSha256": "0dbd3fad624097c673c4a5ec2f545f95e9c21d1d5337bb2b48ffeb22b16cb2b9",
"secondaryResultStoreSha256": "416d2f87241fb4c6b917f6aeecb588f82f6e7d51a103f4c53a74d11971f16839",
"resultConsistent": true,
"terminalAuditStatus": "clean"
},
"testGate": {
"coreUnitTotal": 423,
"corePassed": 417,
"ignoredManualBenchmarks": 6,
"failed": 0,
"integrationSuitesPassed": true
},
"remoteArtifacts": [
"/srv/fidc/canonical/run/fidc-private/evidence/lazy-expression-scope-primary-20260905.json",
"/srv/fidc/canonical/run/fidc-private/evidence/lazy-expression-scope-secondary-20260905.json",
"/srv/fidc/canonical/run/fidc-private/evidence/lazy-expression-scope-rollback-secondary-20260905.json"
],
"acceptance": {
"status": "rejected_and_removed",
"reason": "closure-based lazy bindings marginally helped one strategy but regressed the second stable five-year contract, so the implementation was removed"
}
}