{
  "Date": "2026-03-17",
  "Workspace": "C:\\dev\\serdica-backend4",
  "TestCommand": "dotnet test src/Serdica/Ablera.Serdica.Workflow/__Tests/Ablera.Serdica.Workflow.IntegrationTests/Ablera.Serdica.Workflow.IntegrationTests.csproj -c Release --no-build --filter \"FullyQualifiedName~PostgresPerformance\"",
  "SuiteResult": {
    "Passed": 11,
    "Total": 11,
    "Duration": "2 m 16 s"
  },
  "RawArtifactDirectory": "src/Serdica/Ablera.Serdica.Workflow/__Tests/Ablera.Serdica.Workflow.IntegrationTests/bin/Release/net9.0/TestResults/workflow-performance/",
  "PostgresEnvironment": {
    "DockerImage": "postgres:16-alpine",
    "Database": "workflow",
    "Version": "PostgreSQL 16.13",
    "Backend": "Durable queue tables plus LISTEN/NOTIFY wake hints"
  },
  "MeasurementViews": {
    "SerialLatencyScenario": "postgres-signal-roundtrip-latency-serial",
    "SteadyThroughputScenario": "postgres-signal-roundtrip-throughput-parallel",
    "CapacityScenarioPrefix": "postgres-signal-roundtrip-capacity-"
  },
  "Notes": {
    "TopWaitCounts": [
      {
        "Name": "Client:ClientRead",
        "Count": 13
      },
      {
        "Name": "",
        "Count": 1
      }
    ],
    "Interpretation": [
      "Serial latency baseline and steady throughput baseline are separated from the capacity ladder.",
      "The capacity ladder still scales through c16 on this local PostgreSQL Docker setup.",
      "Immediate queue handling remains much cheaper than full workflow resume.",
      "The dominant observed backend state is client read waiting, not an obvious storage stall."
    ]
  },
  "Scenarios": [
    {
      "ScenarioName": "postgres-signal-roundtrip-capacity-c1",
      "Tier": "WorkflowPerfCapacity",
      "OperationCount": 16,
      "Concurrency": 1,
      "DurationMilliseconds": 3895.54,
      "ThroughputPerSecond": 4.11,
      "AverageLatencyMilliseconds": 3738.08,
      "P95LatencyMilliseconds": 3762.51,
      "MaxLatencyMilliseconds": 3771.10,
      "TopWait": "Client:ClientRead",
      "CounterDeltas": {
        "xact_commit": 251,
        "xact_rollback": 7,
        "blks_hit": 1654,
        "blks_read": 24,
        "tup_inserted": 48,
        "tup_updated": 48,
        "tup_deleted": 16
      }
    },
    {
      "ScenarioName": "postgres-signal-roundtrip-capacity-c4",
      "Tier": "WorkflowPerfCapacity",
      "OperationCount": 64,
      "Concurrency": 4,
      "DurationMilliseconds": 3700.99,
      "ThroughputPerSecond": 17.29,
      "AverageLatencyMilliseconds": 3577.49,
      "P95LatencyMilliseconds": 3583.70,
      "MaxLatencyMilliseconds": 3584.43,
      "TopWait": "Client:ClientRead",
      "CounterDeltas": {
        "xact_commit": 1080,
        "xact_rollback": 21,
        "blks_hit": 7084,
        "blks_read": 1,
        "tup_inserted": 192,
        "tup_updated": 192,
        "tup_deleted": 64
      }
    },
    {
      "ScenarioName": "postgres-signal-roundtrip-capacity-c8",
      "Tier": "WorkflowPerfCapacity",
      "OperationCount": 128,
      "Concurrency": 8,
      "DurationMilliseconds": 3853.89,
      "ThroughputPerSecond": 33.21,
      "AverageLatencyMilliseconds": 3713.31,
      "P95LatencyMilliseconds": 3718.66,
      "MaxLatencyMilliseconds": 3719.34,
      "TopWait": "Client:ClientRead",
      "CounterDeltas": {
        "xact_commit": 2348,
        "xact_rollback": 44,
        "blks_hit": 17069,
        "blks_read": 0,
        "tup_inserted": 384,
        "tup_updated": 384,
        "tup_deleted": 128
      }
    },
    {
      "ScenarioName": "postgres-signal-roundtrip-capacity-c16",
      "Tier": "WorkflowPerfCapacity",
      "OperationCount": 256,
      "Concurrency": 16,
      "DurationMilliseconds": 4488.07,
      "ThroughputPerSecond": 57.04,
      "AverageLatencyMilliseconds": 4251.48,
      "P95LatencyMilliseconds": 4287.87,
      "MaxLatencyMilliseconds": 4294.09,
      "TopWait": "Client:ClientRead",
      "CounterDeltas": {
        "xact_commit": 4536,
        "xact_rollback": 48,
        "blks_hit": 40443,
        "blks_read": 0,
        "tup_inserted": 768,
        "tup_updated": 768,
        "tup_deleted": 256
      }
    },
    {
      "ScenarioName": "postgres-signal-roundtrip-latency-serial",
      "Tier": "WorkflowPerfLatency",
      "OperationCount": 16,
      "Concurrency": 1,
      "DurationMilliseconds": 49290.47,
      "ThroughputPerSecond": 0.32,
      "AverageLatencyMilliseconds": 3079.33,
      "P95LatencyMilliseconds": 3094.94,
      "MaxLatencyMilliseconds": 3101.71,
      "PhaseLatencySummaries": {
        "start": {
          "AverageMilliseconds": 6.12,
          "P95Milliseconds": 9.29,
          "MaxMilliseconds": 11.26
        },
        "signalPublish": {
          "AverageMilliseconds": 5.63,
          "P95Milliseconds": 6.82,
          "MaxMilliseconds": 7.53
        },
        "signalToCompletion": {
          "AverageMilliseconds": 3073.20,
          "P95Milliseconds": 3086.59,
          "MaxMilliseconds": 3090.44
        }
      }
    },
    {
      "ScenarioName": "postgres-signal-roundtrip-throughput-parallel",
      "Tier": "WorkflowPerfThroughput",
      "OperationCount": 96,
      "Concurrency": 16,
      "DurationMilliseconds": 3729.17,
      "ThroughputPerSecond": 25.74,
      "AverageLatencyMilliseconds": 3603.54,
      "P95LatencyMilliseconds": 3635.59,
      "MaxLatencyMilliseconds": 3649.96,
      "TopWait": "Client:ClientRead",
      "CounterDeltas": {
        "xact_commit": 1502,
        "xact_rollback": 38,
        "blks_hit": 21978,
        "blks_read": 24,
        "tup_inserted": 288,
        "tup_updated": 288,
        "tup_deleted": 96
      },
      "PhaseLatencySummaries": {
        "start": {
          "AverageMilliseconds": 16.21,
          "P95Milliseconds": 40.31,
          "MaxMilliseconds": 47.02
        },
        "signalPublish": {
          "AverageMilliseconds": 18.11,
          "P95Milliseconds": 23.62,
          "MaxMilliseconds": 28.41
        },
        "signalToCompletion": {
          "AverageMilliseconds": 3504.24,
          "P95Milliseconds": 3530.38,
          "MaxMilliseconds": 3531.14
        }
      }
    },
    {
      "ScenarioName": "postgres-signal-roundtrip-soak",
      "Tier": "WorkflowPerfSoak",
      "OperationCount": 108,
      "Concurrency": 8,
      "DurationMilliseconds": 25121.68,
      "ThroughputPerSecond": 4.30,
      "AverageLatencyMilliseconds": 4164.52,
      "P95LatencyMilliseconds": 4208.42,
      "MaxLatencyMilliseconds": 4209.96,
      "TopWait": "Client:ClientRead",
      "CounterDeltas": {
        "xact_commit": 3313,
        "xact_rollback": 352,
        "blks_hit": 26548,
        "blks_read": 269,
        "tup_inserted": 774,
        "tup_updated": 339,
        "tup_deleted": 108
      }
    }
  ]
}