From a35137ed1cee92e09c83ed29aa45c964045fbdc7 Mon Sep 17 00:00:00 2001
From: boris <shuaibo.zhang@hotmail.com>
Date: Sat, 5 Sep 2026 02:13:00 +0800
Subject: [PATCH] docs: record stock snapshot field projection

---
 ...ck-snapshot-field-projection-20260905.json | 87 +++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 docs/evidence/stock-snapshot-field-projection-20260905.json

diff --git a/docs/evidence/stock-snapshot-field-projection-20260905.json b/docs/evidence/stock-snapshot-field-projection-20260905.json
new file mode 100644
index 0000000..f236250
--- /dev/null
+++ b/docs/evidence/stock-snapshot-field-projection-20260905.json
@@ -0,0 +1,87 @@
+{
+  "schemaVersion": "fidc-stock-snapshot-field-projection/v1",
+  "measuredAt": "2026-09-05T02:11:00+08:00",
+  "host": "192.168.31.177",
+  "engineCommit": "7f17fa1fb427fefe5c70c9170fe98e2a8761e3ac",
+  "serviceCommit": "9fd5a9e6d5668af57f6942fc3c4127953545d9c6",
+  "runnerBinarySha256": "0c0ea8629afa789024a6212bcb7ac0e8291f6a88943dd9f7bee16d4902c96be1",
+  "implementation": {
+    "description": "compile per-strategy requirements for amount and upper/lower limit-touch fields, then skip their factor-map lookups and fallback calculations when no expression consumes them",
+    "dynamicFactorMapStillLoadsAllFields": true,
+    "explicitActionsStillLoadAllFields": true,
+    "factorValuesCached": false,
+    "selectionResultsCached": false,
+    "pitSemanticsChanged": false,
+    "executionSemanticsChanged": false
+  },
+  "primaryFiveYearContract": {
+    "startDate": "2021-08-23",
+    "endDate": "2026-08-28",
+    "frequency": "1d",
+    "matchingType": "next_bar_open",
+    "totalReturn": 0.9219861819172002,
+    "tradeCount": 26088,
+    "canonicalSha256": "b42fea66237d06eadb24f6b8c9e2760e7319fe3699f315b99e01f433ef2aa234",
+    "resultStoreSha256": "92343fb369fea68b2544b654151c5c43a935940580b14afbe8eefb3844f72a54",
+    "processCold": {
+      "totalSeconds": 18.368,
+      "dataSeconds": 12.691,
+      "engineSeconds": 4.952
+    },
+    "processHotEngineSeconds": [5.434, 4.762, 5.269, 5.366, 5.356],
+    "processHotMedianEngineSeconds": 5.356,
+    "compactKeyBaselineMedianEngineSeconds": 5.734,
+    "observedMedianImprovementPercent": 6.592256714335544,
+    "resultConsistent": true,
+    "terminalAuditStatus": "clean"
+  },
+  "secondaryFiveYearContract": {
+    "totalReturn": 1.1342962298106998,
+    "tradeCount": 19404,
+    "canonicalSha256": "0dbd3fad624097c673c4a5ec2f545f95e9c21d1d5337bb2b48ffeb22b16cb2b9",
+    "resultStoreSha256": "416d2f87241fb4c6b917f6aeecb588f82f6e7d51a103f4c53a74d11971f16839",
+    "lowContentionEngineSeconds": [4.867, 4.36],
+    "highContentionEngineSecondsExcluded": [32.561, 24.001],
+    "resultConsistent": true,
+    "terminalAuditStatus": "clean"
+  },
+  "hardwareCounters": {
+    "candidateRunId": "btr_1788545432236_3086752_11",
+    "candidateEngineSeconds": 5.291,
+    "candidateInstructions": 26663937176,
+    "candidateBranches": 4751846020,
+    "candidateBranchMisses": 21422590,
+    "internedSymbolBaselineInstructions": 27997441984,
+    "internedSymbolBaselineBranches": 4947191270,
+    "observedInstructionReductionPercent": 4.762952303864304,
+    "observedBranchReductionPercent": 3.9486092075029067
+  },
+  "profile": {
+    "runId": "btr_1788545382848_3086752_10",
+    "engineSeconds": 5.009,
+    "eventCycles": 13976422355,
+    "stockStateSelfPercent": 12.52,
+    "internedSymbolBaselineStockStatePercent": 16.25,
+    "stockStateRelativeReductionPercent": 22.953846153846154,
+    "factorMapBTreeGetBaselinePercent": 4.0,
+    "factorMapBTreeGetPresentInCandidateTopProfile": false
+  },
+  "testGate": {
+    "coreUnitTotal": 421,
+    "corePassed": 415,
+    "ignoredManualBenchmarks": 6,
+    "failed": 0,
+    "integrationSuitesPassed": true
+  },
+  "remoteArtifacts": [
+    "/srv/fidc/canonical/run/fidc-private/evidence/stock-snapshot-field-projection-primary-20260905.json",
+    "/srv/fidc/canonical/run/fidc-private/evidence/stock-snapshot-field-projection-secondary-20260905.json",
+    "/srv/fidc/canonical/run/fidc-private/evidence/stock-snapshot-field-projection-profile-20260905/perf.data",
+    "/srv/fidc/canonical/run/fidc-private/evidence/stock-snapshot-field-projection-profile-20260905/perf-report.txt",
+    "/srv/fidc/canonical/run/fidc-private/evidence/stock-snapshot-field-projection-perf-stat-20260905/perf-stat.csv"
+  ],
+  "acceptance": {
+    "status": "accepted_generic_compiled_field_projection",
+    "reason": "two distinct five-year contracts preserve exact business outputs and terminal audits, while the primary low-contention median, hardware counters, and profile all show less work without adding a shared mutable cache"
+  }
+}