{
  "date": "2026-03-17",
  "type": "backend-comparison",
  "status": "baseline-decision-pack",
  "sources": {
    "oracle": "10-oracle-performance-baseline-2026-03-17.json",
    "postgres": "11-postgres-performance-baseline-2026-03-17.json",
    "mongo": "12-mongo-performance-baseline-2026-03-17.json"
  },
  "validation": {
    "integrationBuild": {
      "warnings": 0,
      "errors": 0
    },
    "oraclePerformanceSuite": "12/12",
    "postgresPerformanceSuite": "11/11",
    "mongoPerformanceSuite": "14/14",
    "postgresBackendParitySuite": "9/9",
    "mongoBackendParitySuite": "23/23"
  },
  "normalizedMetrics": {
    "signalRoundTrip": {
      "oracle": {
        "serialLatencyAvgMs": 3104.85,
        "serialLatencyP95Ms": 3165.04,
        "throughputOpsPerSecond": 20.98,
        "throughputAvgMs": 4142.13,
        "throughputP95Ms": 4215.64,
        "soakOpsPerSecond": 3.91,
        "soakAvgMs": 4494.29,
        "soakP95Ms": 5589.33
      },
      "postgres": {
        "serialLatencyAvgMs": 3079.33,
        "serialLatencyP95Ms": 3094.94,
        "throughputOpsPerSecond": 25.74,
        "throughputAvgMs": 3603.54,
        "throughputP95Ms": 3635.59,
        "soakOpsPerSecond": 4.30,
        "soakAvgMs": 4164.52,
        "soakP95Ms": 4208.42
      },
      "mongo": {
        "serialLatencyAvgMs": 97.88,
        "serialLatencyP95Ms": 149.20,
        "throughputOpsPerSecond": 76.28,
        "throughputAvgMs": 1110.94,
        "throughputP95Ms": 1121.22,
        "soakOpsPerSecond": 47.62,
        "soakAvgMs": 322.40,
        "soakP95Ms": 550.50
      }
    },
    "capacity": {
      "c1": {
        "oracle": 3.37,
        "postgres": 4.11,
        "mongo": 7.08
      },
      "c4": {
        "oracle": 15.22,
        "postgres": 17.29,
        "mongo": 38.35
      },
      "c8": {
        "oracle": 21.34,
        "postgres": 33.21,
        "mongo": 66.04
      },
      "c16": {
        "oracle": 34.03,
        "postgres": 57.04,
        "mongo": 68.65
      }
    },
    "transport": {
      "immediateBurstNightlyOpsPerSecond": {
        "oracle": 50.18,
        "postgres": 70.10,
        "mongo": 46.18
      },
      "delayedBurstNightlyOpsPerSecond": {
        "oracle": 10.71,
        "postgres": 19.60,
        "mongo": 16.66
      }
    },
    "bulstrad": {
      "quoteOrAplCancelSmokeOpsPerSecond": {
        "oracle": 19.69,
        "postgres": 59.88,
        "mongo": 23.48
      },
      "quotationConfirmConvertToPolicyNightlyOpsPerSecond": {
        "oracle": 1.77,
        "postgres": 3.33,
        "mongo": 10.83
      }
    }
  },
  "backendObservations": {
    "oracle": {
      "dominantWait": "log file sync",
      "strength": "highest validation maturity",
      "primaryPressure": "commit pressure"
    },
    "postgres": {
      "dominantWait": "Client:ClientRead",
      "strength": "best relational performance profile",
      "primaryPressure": "queue claim and wake cadence"
    },
    "mongo": {
      "dominantWait": "none-stable",
      "strength": "fastest measured synthetic throughput",
      "primaryPressure": "latency expansion from c8 to c16 and operational dependence on transactions plus change streams"
    }
  },
  "recommendation": {
    "currentPortabilityChoice": "PostgreSQL",
    "reason": "best performance-to-operability compromise with a relational model and competitive backend-native validation",
    "fastestMeasuredBackend": "MongoDB",
    "highestValidationMaturity": "Oracle",
    "caveat": "this is a baseline-level decision pack; Oracle still has the broadest hostile-condition and Bulstrad hardening surface"
  }
}