boris
79 lines
3.2 KiB
JSON
79 lines
3.2 KiB
JSON
{
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"schemaVersion": "fidc-duplicate-rolling-lookback-rejection/v1",
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"measuredAt": "2026-09-05T01:05:00+08:00",
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"host": "192.168.31.177",
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"candidateCommits": [
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"1f02e78b2400c73c5f05351b0beff16d6c724e2a",
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"e469b0ddf4aa3bb9fe69b785b51ce6c7cf960b90"
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],
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"revertCommit": "5b2a03d416a7bd709680a1adf52013e3eadc199a",
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"candidate": {
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"description": "reuse equal lookback values only inside one AdjustedCloseSeries moving_averages_at_end call",
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"validComponentBenchmark": {
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"samples": 6,
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"iterationsPerSample": 3000000,
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"lookbacks": [1, 2, 3, 1, 2, 3, 1],
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"repeatedSeconds": 1.40643611,
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"reusedSeconds": 0.853281932,
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"speedup": 1.6482666012902287,
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"checksum": 1458000000.0
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},
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"hardwareCounters": {
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"runId": "btr_1788541184367_2862338_11",
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"engineSeconds": 8.423,
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"taskClockMilliseconds": 9030.56,
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"cycles": 22931608591,
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"instructions": 28199702874,
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"branches": 5010114942,
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"branchMisses": 23586244,
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"cacheReferences": 268428800,
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"cacheMisses": 146632717
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}
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},
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"restoredBaseline": {
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"warmupRunId": "btr_1788541416661_2890172_0",
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"warmupEngineSeconds": 5.581,
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"hardwareCounters": {
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"runId": "btr_1788541455567_2890172_1",
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"engineSeconds": 6.078,
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"taskClockMilliseconds": 6643.43,
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"cycles": 16773013609,
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"instructions": 28218847364,
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"branches": 5024236708,
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"branchMisses": 23209586,
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"cacheReferences": 266316407,
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"cacheMisses": 81226408
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},
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"runnerBinarySha256": "188269bf0c2ee65d6c11ed37ddddfdaf86695941e8123f69f950054bea39796e"
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},
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"comparison": {
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"candidateInstructionReductionPercent": 0.06784229696471904,
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"candidateBranchReductionPercent": 0.2810720756590066,
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"materialSystemImprovementProven": false,
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"wallTimeComparable": false,
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"reason": "host-wide thermal and external workload changes produced materially different cache-miss and clock conditions; the instruction reduction itself is below one tenth of one percent"
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},
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"businessContract": {
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"startDate": "2021-08-23",
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"endDate": "2026-08-28",
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"frequency": "1d",
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"matchingType": "next_bar_open",
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"totalReturn": 0.9219861819172002,
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"tradeCount": 26088,
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"canonicalSha256": "b42fea66237d06eadb24f6b8c9e2760e7319fe3699f315b99e01f433ef2aa234",
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"resultStoreSha256": "92343fb369fea68b2544b654151c5c43a935940580b14afbe8eefb3844f72a54",
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"allRunsConsistent": true
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},
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"remoteArtifacts": [
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"/srv/fidc/canonical/run/fidc-private/evidence/duplicate-lookback-20260905.json",
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"/srv/fidc/canonical/run/fidc-private/evidence/duplicate-lookback-low-contention-20260905.json",
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"/srv/fidc/canonical/run/fidc-private/evidence/duplicate-lookback-perf-stat-candidate-20260905/perf-stat.csv",
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"/srv/fidc/canonical/run/fidc-private/evidence/duplicate-lookback-perf-stat-baseline-20260905/perf-stat.csv"
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],
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"decision": {
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"status": "rejected_and_removed",
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"reason": "the valid microbenchmark improves, but the real five-year workload saves only about 0.068 percent instructions and provides no measurable system-level benefit",
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"productionEngineCommit": "5b2a03d416a7bd709680a1adf52013e3eadc199a"
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}
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}
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