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      "nonzero_or_failed_launches": 0,
      "profiled_pids_with_samples": 19,
      "profiled_stack_sample_denominator": 1337,
      "sampleprof_events": 106849,
      "target_exe_module_exclusive_hits": 222,
      "target_exe_module_inclusive_hits": 954,
      "target_processes_ended": 20,
      "target_processes_started": 20,
      "total_events": 376764,
      "trace_elapsed_seconds": 42
    },
    "collector": "Visual Studio DiagnosticsHub VSDiagnostics 17.14.36412.1 CPU Usage agent",
    "commands": [
      "VSDiagnostics.exe start 117 /loadConfig:AgentConfigs\\CpuUsageHigh.json /scratchLocation:<scratch> /package:opt",
      "VSDiagnostics.exe update 117 /attach:<20 target process IDs>",
      "VSDiagnostics.exe stop 117 /output:ts01-20-sequential.diagsession",
      "VSDiagnostics.exe expandDiagSession ts01-20-sequential.diagsession",
      "tracerpt sc.user_aux.etl -o events.csv -of CSV -summary tracerpt-summary.txt -y",
      "xperf.exe -i sc.user_aux.etl -o symbols.txt -symbols -a profile -detail",
      "xperf.exe -i sc.user_aux.etl -symbols -o stack.txt -a stack -process csl_syn04_strategy_b_report\\.exe -butterfly 1"
    ],
    "concurrency_profile": "A prior 20-process concurrent profile is exploratory corroboration only and is excluded from the primary sequential attribution.",
    "host": {
      "boot_time_local": "2026-10-06T07:17:18",
      "load_window": "43 one-second per-CPU intervals including target workload; utility is host CPU utilization, not a pre-run idle baseline",
      "logical_processors": 12,
      "os": "Windows 11 Home 10.0.22631",
      "physical_cores": 6,
      "processor": "12th Gen Intel Core i5-12400F",
      "trace_time_local": "2026-10-14 11:26",
      "uptime_at_trace_approx": "8 days 4 hours",
      "xperf_per_logical_cpu_utilization_max_percent": 50.39,
      "xperf_per_logical_cpu_utilization_mean_percent": 5.11,
      "xperf_per_logical_cpu_utilization_min_percent": 0.03
    },
    "interpretation": "Sequential samples independently support that the observed CPU stack path traverses StrategyPort -> DirectJointWorkspace -> convex Highs QP solve; this is a sampled CPU hotspot in a diagnostic process workload, not proof that this path limits the unprofiled single-process latency. No timing or speedup attribution is made.",
    "limitations": [
      "The diagnostic build adds PDB generation while preserving /O2 Release semantics; it is not the exact no-PDB benchmark binary.",
      "The 20-process sequential profile aggregates repeated tiny workloads and includes process startup and teardown.",
      "Samples are statistical CPU samples, not elapsed-time phase counters; profile instrumentation overhead is excluded from timing results.",
      "A 42-second capture produced useful stacks, but no precise phase-counter breakdown or representative single-run unprofiled latency correlation."
    ],
    "mode": "separate diagnostic run, 20 sequential process launches; each process ran the exact registered Strategy B T-S01 harness workload from the PDB-enabled Release build; excluded from all latency statistics",
    "privilege_boundary": {
      "SeSystemProfilePrivilege_present": false,
      "result": "collection succeeded with process-scoped collector; WPR remains denied with 0xc5585011"
    },
    "sampled_cpu_attribution": [
      {
        "inclusive_hits": 953,
        "share_percent": 71.28,
        "symbol": "__scrt_common_main_seh"
      },
      {
        "inclusive_hits": 861,
        "share_percent": 64.4,
        "symbol": "main"
      },
      {
        "inclusive_hits": 826,
        "share_percent": 61.78,
        "symbol": "one_run"
      },
      {
        "inclusive_hits": 777,
        "share_percent": 58.12,
        "symbol": "csl::registry::StrategyPort::run"
      },
      {
        "inclusive_hits": 777,
        "share_percent": 58.12,
        "symbol": "csl::registry::detail::VerifiedStrategyWorkspace::solve"
      },
      {
        "inclusive_hits": 758,
        "share_percent": 56.69,
        "symbol": "csl::synthesis::strategy_b::DirectJointWorkspace::solve"
      },
      {
        "inclusive_hits": 665,
        "share_percent": 49.74,
        "symbol": "csl::adapters::convex::Workspace::solve_native"
      },
      {
        "inclusive_hits": 421,
        "share_percent": 31.49,
        "symbol": "Highs::run"
      },
      {
        "inclusive_hits": 414,
        "share_percent": 30.96,
        "symbol": "Highs::optimizeModel"
      },
      {
        "inclusive_hits": 331,
        "share_percent": 24.76,
        "symbol": "Highs::callSolveQp"
      },
      {
        "inclusive_hits": 342,
        "share_percent": 25.58,
        "symbol": "operator new"
      }
    ]
  }
}
