{
  "date": "2026-09-22",
  "host": "Juniper",
  "cpu": "Intel Xeon Platinum 8260, 24 cores / 48 logical processors",
  "constraints": "Shared host with concurrent development and CI (this machine is also a CI runner). The run started only once the one-minute load average was below the 48 logical processors and no other dotnet build/test process was running. Load averages at start and end: 23.91, 31.28, 31.35; 23.81, 28.37, 30.23. Every timing sample also records the load average. No benchmark-specific CPU or memory limits; shared-host diagnostic evidence, not environment qualification.",
  "variant": "baseline single-pass read (session B, paired with session-holder narrowing)",
  "repositoryCommit": "b9f8bad14c844e162309500a13208eeefca1c8c7",
  "harnessSha256": "fe9ebf184f87d410ccbf868b3a7a5b337dc7b2155bfe5faffbccde6be83343e0",
  "testPassed": true,
  "observations": [
    {
      "kind": "environment",
      "mongo": "8.0.28",
      "dotnet": "10.0.0",
      "buildConfiguration": "Release",
      "processors": 48,
      "studyCount": 100000,
      "noiseCount": 10000,
      "reviewerCount": 50,
      "reviewsPerStudy": 2,
      "iterations": 10,
      "activeReviewerTracking": true,
      "enforceMaxInProgressSessions": true,
      "maxInProgress": null,
      "fullyReviewed": false,
      "abstractBytes": 4096,
      "savedPercent": 35,
      "atCapacityPercent": 5,
      "excludedPercent": 5,
      "reservedPercent": 5,
      "hostLoadAverage": "34.02 32.35 31.67",
      "dataBytes": 637481890,
      "indexBytes": 24834048,
      "indexes": [
        {
          "name": "_id_",
          "key": "{ \"_id\" : 1 }"
        },
        {
          "name": "ProjectId_1_ScreeningInfo.InclusionInfo.ProjectAgreementThreshold.NumberScreened_1_ScreeningInfo.InclusionInfo.ProjectAgreementThreshold.AbsoluteAgreementRatio_1_ScreeningInfo.InclusionInfo.Overscreened_1",
          "key": "{ \"ProjectId\" : 1, \"ScreeningInfo.InclusionInfo.ProjectAgreementThreshold.NumberScreened\" : 1, \"ScreeningInfo.InclusionInfo.ProjectAgreementThreshold.AbsoluteAgreementRatio\" : 1, \"ScreeningInfo.InclusionInfo.Overscreened\" : 1 }"
        },
        {
          "name": "ProjectId_1_ScreeningInfo.InclusionInfo.ProjectAgreementThreshold.NumberScreened_1_ScreeningInfo.InclusionInfo.ProjectAgreementThreshold.AbsoluteAgreementRatio_1_ScreeningInfo.InclusionInfo.StudyScreenStatus_1_ScreeningInfo.InclusionInfo.Overscreened_1",
          "key": "{ \"ProjectId\" : 1, \"ScreeningInfo.InclusionInfo.ProjectAgreementThreshold.NumberScreened\" : 1, \"ScreeningInfo.InclusionInfo.ProjectAgreementThreshold.AbsoluteAgreementRatio\" : 1, \"ScreeningInfo.InclusionInfo.StudyScreenStatus\" : 1, \"ScreeningInfo.InclusionInfo.Overscreened\" : 1 }"
        },
        {
          "name": "ProjectId_1_ScreeningInfo.Screenings.ScreenerId_1",
          "key": "{ \"ProjectId\" : 1, \"ScreeningInfo.Screenings.ScreenerId\" : 1 }"
        },
        {
          "name": "ProjectId_1_ScreeningInfo.AgreementMeasure.NumberScreened_1_ScreeningInfo.AgreementMeasure.AbsoluteAgreementRatio_1_SystematicSearchId_1",
          "key": "{ \"ProjectId\" : 1, \"ScreeningInfo.AgreementMeasure.NumberScreened\" : 1, \"ScreeningInfo.AgreementMeasure.AbsoluteAgreementRatio\" : 1, \"SystematicSearchId\" : 1 }"
        },
        {
          "name": "ProjectId_1_ScreeningInfo.AgreementMeasure.NumberScreened_1_ScreeningInfo.AgreementMeasure.AbsoluteAgreementRatio_1_DateTimeCreated_1",
          "key": "{ \"ProjectId\" : 1, \"ScreeningInfo.AgreementMeasure.NumberScreened\" : 1, \"ScreeningInfo.AgreementMeasure.AbsoluteAgreementRatio\" : 1, \"DateTimeCreated\" : 1 }"
        },
        {
          "name": "ProjectId_1_ScreeningInfo.AgreementMeasure.NumberScreened_1_ScreeningInfo.AgreementMeasure.AbsoluteAgreementRatio_1_ExtractionInfo.Sessions.InvestigatorId_1_ExtractionInfo.Sessions.Status_1_SystematicSearchId_1",
          "key": "{ \"ProjectId\" : 1, \"ScreeningInfo.AgreementMeasure.NumberScreened\" : 1, \"ScreeningInfo.AgreementMeasure.AbsoluteAgreementRatio\" : 1, \"ExtractionInfo.Sessions.InvestigatorId\" : 1, \"ExtractionInfo.Sessions.Status\" : 1, \"SystematicSearchId\" : 1 }"
        },
        {
          "name": "ProjectId_1_ScreeningInfo.AgreementMeasure.NumberScreened_1_ScreeningInfo.AgreementMeasure.AbsoluteAgreementRatio_1_ExtractionInfo.SessionTallies.StageId_1_ExtractionInfo.SessionTallies.NumberOfCandidateSessions_1_SystematicSearchId_1",
          "key": "{ \"ProjectId\" : 1, \"ScreeningInfo.AgreementMeasure.NumberScreened\" : 1, \"ScreeningInfo.AgreementMeasure.AbsoluteAgreementRatio\" : 1, \"ExtractionInfo.SessionTallies.StageId\" : 1, \"ExtractionInfo.SessionTallies.NumberOfCandidateSessions\" : 1, \"SystematicSearchId\" : 1 }"
        },
        {
          "name": "ProjectId_1_ExtractionInfo.SessionTallies.StageId_1_ExtractionInfo.SessionTallies.NumberOfCandidateSessions_1_SystematicSearchId_1",
          "key": "{ \"ProjectId\" : 1, \"ExtractionInfo.SessionTallies.StageId\" : 1, \"ExtractionInfo.SessionTallies.NumberOfCandidateSessions\" : 1, \"SystematicSearchId\" : 1 }"
        },
        {
          "name": "ProjectId_1_ExtractionInfo.SessionTallies.StageId_1_ExtractionInfo.SessionTallies.NumberOfCandidateSessions_1",
          "key": "{ \"ProjectId\" : 1, \"ExtractionInfo.SessionTallies.StageId\" : 1, \"ExtractionInfo.SessionTallies.NumberOfCandidateSessions\" : 1 }"
        },
        {
          "name": "ProjectId_1_ExtractionInfo.SessionTallies.StageId_1_ExtractionInfo.SessionTallies.ReconciliationStarted_1",
          "key": "{ \"ProjectId\" : 1, \"ExtractionInfo.SessionTallies.StageId\" : 1, \"ExtractionInfo.SessionTallies.ReconciliationStarted\" : 1 }"
        },
        {
          "name": "ProjectId_1",
          "key": "{ \"ProjectId\" : 1 }"
        },
        {
          "name": "ProjectId_1__id_1",
          "key": "{ \"ProjectId\" : 1, \"_id\" : 1 }"
        },
        {
          "name": "ProjectId_1_WorkloadShareBucket_1",
          "key": "{ \"ProjectId\" : 1, \"WorkloadShareBucket\" : 1 }"
        },
        {
          "name": "Abstract_text_PublicationName.AlternateName_text_PublicationName.Name_text_Title_text_Keywords_text",
          "key": "{ \"_fts\" : \"text\", \"_ftsx\" : 1 }"
        },
        {
          "name": "ProjectId_1_SystematicSearchId_1",
          "key": "{ \"ProjectId\" : 1, \"SystematicSearchId\" : 1 }"
        },
        {
          "name": "ProjectId_1_ExtractionInfo.Annotations.AnnotatorId_1",
          "key": "{ \"ProjectId\" : 1, \"ExtractionInfo.Annotations.AnnotatorId\" : 1 }"
        }
      ]
    },
    {
      "kind": "timing",
      "name": "plan-build",
      "hostLoadAverage": "32.18 31.99 31.56",
      "firstCallMs": 133.2894,
      "warmMedianMs": 122.87095,
      "warmP95Ms": 132.8236,
      "warmMaxMs": 132.8236,
      "meanProcessAllocatedBytes": 125128551,
      "samples": [
        119.4537,
        120.3993,
        121.0226,
        122.5544,
        122.7478,
        122.9941,
        125.8161,
        126.3959,
        132.4737,
        132.8236
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    },
    {
      "kind": "timing",
      "name": "next-legacy",
      "hostLoadAverage": "30.40 31.63 31.45",
      "firstCallMs": 772.21,
      "warmMedianMs": 532.65665,
      "warmP95Ms": 741.5411,
      "warmMaxMs": 741.5411,
      "meanProcessAllocatedBytes": 129544,
      "samples": [
        516.1436,
        525.5634,
        530.9816,
        531.6131,
        531.7702,
        533.5431,
        533.8269,
        560.232,
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    },
    {
      "kind": "query-diagnostic",
      "name": "next-legacy",
      "command": "command",
      "plan": "IXSCAN { ProjectId: 1, _id: 1 }",
      "documentsExamined": "100000",
      "keysExamined": "100000",
      "responseBytes": "5731",
      "diagnosticMs": "516"
    },
    {
      "kind": "query-explain",
      "name": "next-legacy",
      "stages": [
        "FETCH index=BsonNull nReturned=89600 keysExamined=BsonNull docsExamined=100000 ms=102",
        "  IXSCAN index=ProjectId_1__id_1 nReturned=100000 keysExamined=100000 docsExamined=BsonNull ms=9",
        "$sample nReturned=1 ms=527"
      ]
    },
    {
      "kind": "memory-snapshot",
      "name": "next-legacy",
      "residentMb": 918
    },
    {
      "kind": "timing",
      "name": "next-allocated",
      "hostLoadAverage": "30.40 31.63 31.45",
      "firstCallMs": 63.8412,
      "warmMedianMs": 26.7606,
      "warmP95Ms": 27.6064,
      "warmMaxMs": 27.6064,
      "meanProcessAllocatedBytes": 138714,
      "samples": [
        25.635,
        26.2482,
        26.2547,
        26.6749,
        26.7361,
        26.7851,
        26.8043,
        26.8478,
        27.182,
        27.6064
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    },
    {
      "kind": "query-diagnostic",
      "name": "next-allocated",
      "command": "command",
      "plan": "IXSCAN { ProjectId: 1, WorkloadShareBucket: 1 }",
      "documentsExamined": "3997",
      "keysExamined": "4397",
      "responseBytes": "5731",
      "diagnosticMs": "23"
    },
    {
      "kind": "query-explain",
      "name": "next-allocated",
      "stages": [
        "FETCH index=BsonNull nReturned=3566 keysExamined=BsonNull docsExamined=3997 ms=5",
        "  IXSCAN index=ProjectId_1_WorkloadShareBucket_1 nReturned=3997 keysExamined=4397 docsExamined=BsonNull ms=2",
        "$sample nReturned=1 ms=33"
      ]
    },
    {
      "kind": "memory-snapshot",
      "name": "next-allocated",
      "residentMb": 915
    },
    {
      "kind": "timing",
      "name": "reviewer-page",
      "hostLoadAverage": "23.65 29.94 30.89",
      "firstCallMs": 1866.6311,
      "warmMedianMs": 1772.6637500000002,
      "warmP95Ms": 1983.1488,
      "warmMaxMs": 1983.1488,
      "meanProcessAllocatedBytes": 633488,
      "samples": [
        1677.1834,
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        1738.6021,
        1741.3593,
        1770.5089,
        1774.8186,
        1802.4282,
        1813.039,
        1941.4439,
        1983.1488
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    },
    {
      "kind": "query-diagnostic",
      "name": "reviewer-page",
      "command": "command",
      "plan": "IXSCAN { ProjectId: 1 }",
      "documentsExamined": "100000",
      "keysExamined": "100000",
      "responseBytes": "3516",
      "diagnosticMs": "1737"
    },
    {
      "kind": "query-explain",
      "name": "reviewer-page",
      "stages": [
        "PROJECTION_DEFAULT index=BsonNull nReturned=100000 keysExamined=BsonNull docsExamined=BsonNull ms=193",
        "  FETCH index=BsonNull nReturned=100000 keysExamined=BsonNull docsExamined=100000 ms=70",
        "    IXSCAN index=ProjectId_1 nReturned=100000 keysExamined=100000 docsExamined=BsonNull ms=12",
        "$set nReturned=100000 ms=560",
        "$facet nReturned=1 ms=1837"
      ]
    },
    {
      "kind": "memory-snapshot",
      "name": "reviewer-page",
      "residentMb": 1082
    },
    {
      "kind": "timing",
      "name": "admin-progress",
      "hostLoadAverage": "25.69 29.80 30.81",
      "firstCallMs": 2323.3798,
      "warmMedianMs": 2128.2279,
      "warmP95Ms": 2481.3644,
      "warmMaxMs": 2481.3644,
      "meanProcessAllocatedBytes": 1825165,
      "samples": [
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        2125.6582,
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        2157.313,
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        2475.9434,
        2481.3644
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    },
    {
      "kind": "query-diagnostic",
      "name": "admin-progress",
      "command": "command",
      "plan": "IXSCAN { ProjectId: 1 }",
      "documentsExamined": "100000",
      "keysExamined": "100000",
      "responseBytes": "5936",
      "diagnosticMs": "2187"
    },
    {
      "kind": "query-explain",
      "name": "admin-progress",
      "skipped": "profiled command is not a complete aggregate"
    },
    {
      "kind": "memory-snapshot",
      "name": "admin-progress",
      "residentMb": 1084
    },
    {
      "kind": "query-explain",
      "name": "admin-progress classification (whole project)",
      "stages": [
        "PROJECTION_DEFAULT index=BsonNull nReturned=100000 keysExamined=BsonNull docsExamined=BsonNull ms=1551",
        "  FETCH index=BsonNull nReturned=100000 keysExamined=BsonNull docsExamined=100000 ms=171",
        "    IXSCAN index=ProjectId_1 nReturned=100000 keysExamined=100000 docsExamined=BsonNull ms=67",
        "$unwind nReturned=238414 ms=1860",
        "$group nReturned=50 ms=2020"
      ]
    },
    {
      "kind": "timing",
      "name": "reviewer-stale",
      "hostLoadAverage": "19.62 27.71 30.06",
      "firstCallMs": 1723.5523,
      "warmMedianMs": 1684.43735,
      "warmP95Ms": 2008.3666,
      "warmMaxMs": 2008.3666,
      "meanProcessAllocatedBytes": 526925,
      "samples": [
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        1656.0926,
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        1956.8991,
        2008.3666
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    },
    {
      "kind": "query-diagnostic",
      "name": "reviewer-stale",
      "command": "command",
      "plan": "IXSCAN { ProjectId: 1 }",
      "documentsExamined": "100000",
      "keysExamined": "100000",
      "responseBytes": "3491",
      "diagnosticMs": "1636"
    },
    {
      "kind": "query-explain",
      "name": "reviewer-stale",
      "stages": [
        "PROJECTION_DEFAULT index=BsonNull nReturned=100000 keysExamined=BsonNull docsExamined=BsonNull ms=189",
        "  FETCH index=BsonNull nReturned=100000 keysExamined=BsonNull docsExamined=100000 ms=62",
        "    IXSCAN index=ProjectId_1 nReturned=100000 keysExamined=100000 docsExamined=BsonNull ms=20",
        "$set nReturned=100000 ms=510",
        "$facet nReturned=1 ms=1694"
      ]
    },
    {
      "kind": "memory-snapshot",
      "name": "reviewer-stale",
      "residentMb": 1085
    },
    {
      "kind": "timing",
      "name": "next-empty-buckets",
      "hostLoadAverage": "32.00 30.19 30.85",
      "firstCallMs": 2261.8482,
      "warmMedianMs": 326.9857,
      "warmP95Ms": 341.6694,
      "warmMaxMs": 341.6694,
      "meanProcessAllocatedBytes": 108820,
      "samples": [
        315.2656,
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        326.9422,
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        338.017,
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    },
    {
      "kind": "query-diagnostic",
      "name": "next-empty-buckets",
      "command": "command",
      "plan": "IXSCAN { ProjectId: 1 }",
      "documentsExamined": "100000",
      "keysExamined": "100000",
      "responseBytes": "146",
      "diagnosticMs": "316"
    },
    {
      "kind": "query-explain",
      "name": "next-empty-buckets",
      "stages": [
        "FETCH index=BsonNull nReturned=0 keysExamined=BsonNull docsExamined=100000 ms=283",
        "  IXSCAN index=ProjectId_1 nReturned=100000 keysExamined=100000 docsExamined=BsonNull ms=61",
        "$sample nReturned=0 ms=210"
      ]
    },
    {
      "kind": "memory-snapshot",
      "name": "next-empty-buckets",
      "residentMb": 1080
    },
    {
      "kind": "timing",
      "name": "reviewer-at-in-progress-limit",
      "hostLoadAverage": "24.92 28.67 30.33",
      "firstCallMs": 1812.5274,
      "warmMedianMs": 1759.60995,
      "warmP95Ms": 2090.6494,
      "warmMaxMs": 2090.6494,
      "meanProcessAllocatedBytes": 657264,
      "samples": [
        1731.0648,
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        1738.7723,
        1748.102,
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        1765.2976,
        1765.5032,
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        1850.9862,
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    },
    {
      "kind": "query-diagnostic",
      "name": "reviewer-at-in-progress-limit",
      "command": "command",
      "plan": "IXSCAN { ProjectId: 1 }",
      "documentsExamined": "100000",
      "keysExamined": "100000",
      "responseBytes": "3557",
      "diagnosticMs": "1759"
    },
    {
      "kind": "query-explain",
      "name": "reviewer-at-in-progress-limit",
      "stages": [
        "PROJECTION_DEFAULT index=BsonNull nReturned=100000 keysExamined=BsonNull docsExamined=BsonNull ms=188",
        "  FETCH index=BsonNull nReturned=100000 keysExamined=BsonNull docsExamined=100000 ms=88",
        "    IXSCAN index=ProjectId_1 nReturned=100000 keysExamined=100000 docsExamined=BsonNull ms=35",
        "$set nReturned=100000 ms=514",
        "$facet nReturned=1 ms=2136"
      ]
    },
    {
      "kind": "memory-snapshot",
      "name": "reviewer-at-in-progress-limit",
      "residentMb": 1091
    }
  ]
}