boris
75 lines
3.9 KiB
JSON
75 lines
3.9 KiB
JSON
{
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"schemaVersion": "fidc-numeric-vm-binding-generation-rejection/v1",
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"measuredAt": "2026-09-06T05:36:00+08:00",
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"host": "192.168.31.177",
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"baseline": {
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"engineCommit": "5f08978",
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"primaryFiveYearHotMedianEngineSeconds": 2.629,
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"primaryFiveYearTotalReturn": 0.9219861819172002,
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"primaryFiveYearTradeCount": 26088,
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"primaryCanonicalSha256": "b42fea66237d06eadb24f6b8c9e2760e7319fe3699f315b99e01f433ef2aa234",
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"primaryResultStoreSha256": "9ccf0c0fc6f5d72e974381ad4cd09a80241d7de99f2649f2b01736f7c80dc2c7",
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"profileInstructions": 16600366059,
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"profileBranches": 2592214949
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},
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"compileTimeIdentifierBinding": {
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"engineCommit": "2135a5b",
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"implementation": "map every numeric VM identifier to a typed runtime enum during expression plan compilation",
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"primaryFiveYearHotEngineSeconds": [2.608, 2.624, 2.651, 2.619, 2.781],
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"primaryFiveYearHotMedianEngineSeconds": 2.624,
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"observedMedianImprovementPercent": 0.190186,
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"profileInstructions": 16360894880,
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"instructionReductionPercent": 1.442566,
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"secondaryFiveYearResultConsistent": true,
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"secondaryFiveYearPerformanceExcluded": true,
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"secondaryFiveYearExclusionReason": "the symbolic campaign entered a high-memory-bandwidth phase between the primary and secondary batches",
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"netCodeLinesAdded": 562,
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"retained": false
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},
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"generationStampedScratchSlots": {
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"engineCommit": "5122c73",
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"implementation": "invalidate numeric VM variable and local slots with a generation counter instead of clearing Option arrays for each evaluation",
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"localReleaseBenchmark": {
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"baselineVmNanosecondsPerEvaluation": 86.992,
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"candidateSamples": [83.284, 94.166, 86.275, 84.138, 85.453],
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"candidateMedianNanosecondsPerEvaluation": 85.453,
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"componentImprovementPercent": 1.769136,
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"comparisonStrength": "weak because the baseline contains one sample"
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},
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"primaryFiveYearHotEngineSeconds": [2.634, 2.636, 2.608, 2.642, 2.710],
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"primaryFiveYearHotMedianEngineSeconds": 2.636,
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"observedMedianRegressionPercent": 0.266261,
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"profileInstructions": 16521146700,
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"instructionReductionPercent": 0.477215,
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"netCodeLinesAdded": 39,
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"retained": false
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},
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"hostLoad": {
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"symbolicWorkersObserved": 3,
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"symbolicWorkerCpuPercentApproximate": [720, 718, 698],
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"symbolicWorkerRssBytesApproximate": [54479982592, 53353455616, 53941170176],
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"wallTimeComparisonsAcrossPhasesExcluded": true
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},
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"testGate": {
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"workspacePassedBeforeFirstCandidateRejection": 539,
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"workspacePassedForGenerationCandidate": 540,
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"failed": 0,
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"ignoredManualBenchmarks": 8
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},
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"remoteArtifacts": [
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"/srv/fidc/canonical/run/fidc-private/evidence/goal-primary-five-year-20260906.json",
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"/srv/fidc/canonical/run/fidc-private/evidence/identifier-binding-primary-five-year-20260906.json",
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"/srv/fidc/canonical/run/fidc-private/evidence/identifier-binding-secondary-five-year-20260906.json",
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"/srv/fidc/canonical/run/fidc-private/evidence/identifier-binding-candidate-perf-stat-20260906.csv",
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"/srv/fidc/canonical/run/fidc-private/evidence/identifier-binding-rollback-primary-five-year-20260906.json",
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"/srv/fidc/canonical/run/fidc-private/evidence/identifier-binding-rollback-perf-stat-20260906.csv",
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"/srv/fidc/canonical/run/fidc-private/evidence/vm-generation-primary-five-year-20260906.json",
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"/srv/fidc/canonical/run/fidc-private/evidence/vm-generation-candidate-perf-stat-20260906.csv"
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],
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"decision": {
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"status": "rejected_and_removed",
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"reason": "both candidates preserved exact business results but failed to produce a material, stable end-to-end improvement; the typed binding added disproportionate code and the generation slots slightly regressed the five-year median",
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"nextTarget": "profile and specialize the numeric VM instruction dispatch or runtime helper execution without changing expression, PIT, or lazy short-circuit semantics"
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}
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}
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