{
  "version": "1.1.0",
  "machine": "Apple M5 Max",
  "measured_on": "2026-10-12",
  "repeat_counts": {
    "S": 5,
    "M": 5,
    "L": 5,
    "XL-single": 5,
    "PATH-HEAVY": 5,
    "REAL": 0,
    "XXL": 3
  },
  "comparison_runs_per_tool": 1,
  "cache": "no explicit cache flush; paired hyperfine warmups; machine load uncontrolled",
  "source": "data/benchmarks.json",
  "data_kind": "generated",
  "environment": {
    "os": "macOS 27.0",
    "architecture": "arm64",
    "cpu": "Apple M5 Max",
    "cores": 18,
    "memory_bytes": 68719476736,
    "compiler": "Apple clang version 21.0.0 (clang-2100.3.34.2)",
    "python": "3.12.8",
    "node": "v24.18.0",
    "npm": "12.2.0",
    "lcov": "2.6-0",
    "lcov-result-merger": "6.0.0; prior results retained for non-XXL workloads from Node v24.14.0; XXL run used Node v24.18.0 and timed out",
    "hyperfine": "2.0.0"
  },
  "default_build": {
    "optimization": "profile-guided",
    "compiler": "Apple clang version 21.0.0 (clang-2100.3.34.2)",
    "target": "host-specific Apple M5 Max build",
    "training_dataset": "M",
    "training_input_bytes": 1118686233,
    "training_source_revision": "33ced0b26adeffe47ed2d2041c8558a667566a51",
    "training_method": "One instrumented merge of generated Dataset M; LLVM profile reused for all listed lcovmerge workloads.",
    "instrumentation_flags": [
      "-O2",
      "-mcpu=native",
      "-fprofile-instr-generate"
    ],
    "build_flags": [
      "-O2",
      "-mcpu=native",
      "-fprofile-instr-use"
    ],
    "profile_sha256": "9af971605273ff8aa6a5af6784f6c1f891a5af8265aed8c59e43329b5043b709",
    "binary_sha256": "5e4bafbc93335d4779ca84db3df45b17717dd078a740e59d11e42300cac74062",
    "release_build": "portable target builds; no host-specific PGO profile"
  },
  "datasets": [
    {
      "id": "medium",
      "name": "M",
      "description": "Generated sharded LCOV input.",
      "input_size": "1.12 GB",
      "shards": "32 shards",
      "results": [
        {
          "tool": "lcovmerge 1.1.0 (PGO)",
          "seconds": 2.940169,
          "seconds_display": "2.94 s",
          "peak_rss_mib": 3.1875,
          "rss_display": "3.19 MiB",
          "throughput_mbs": 380.5,
          "throughput_display": "380.5 MB/s",
          "status": "OK"
        },
        {
          "tool": "lcov 2.6",
          "seconds": 50.542,
          "seconds_display": "50.54 s",
          "peak_rss_mib": 610.203125,
          "rss_display": "610.2 MiB",
          "throughput_mbs": 22.1,
          "throughput_display": "22.1 MB/s",
          "status": "OK"
        },
        {
          "tool": "lcov-result-merger 6.0.0",
          "seconds": 145.171,
          "seconds_display": "2m 25.2s",
          "peak_rss_mib": 2381.96875,
          "rss_display": "2.33 GiB",
          "throughput_mbs": 7.7,
          "throughput_display": "7.7 MB/s",
          "status": "OK"
        }
      ]
    },
    {
      "id": "large",
      "name": "L",
      "description": "Generated sharded LCOV input.",
      "input_size": "4.85 GB",
      "shards": "64 shards",
      "results": [
        {
          "tool": "lcovmerge 1.1.0 (PGO)",
          "seconds": 14.008243,
          "seconds_display": "14.01 s",
          "peak_rss_mib": 4.203125,
          "rss_display": "4.20 MiB",
          "throughput_mbs": 346.5,
          "throughput_display": "346.5 MB/s",
          "status": "OK"
        },
        {
          "tool": "lcov 2.6",
          "seconds": 203.235,
          "seconds_display": "3m 23.2s",
          "peak_rss_mib": 1430.234375,
          "rss_display": "1.40 GiB",
          "throughput_mbs": 23.9,
          "throughput_display": "23.9 MB/s",
          "status": "OK"
        },
        {
          "tool": "lcov-result-merger 6.0.0",
          "seconds": 604.28,
          "seconds_display": "10m 4.3s",
          "peak_rss_mib": 3106.125,
          "rss_display": "3.03 GiB",
          "throughput_mbs": 8.0,
          "throughput_display": "8.0 MB/s",
          "status": "OK"
        }
      ]
    },
    {
      "id": "single_file",
      "name": "XL-single",
      "description": "Generated single .info file.",
      "input_size": "745 MB",
      "shards": "1 file",
      "results": [
        {
          "tool": "lcovmerge 1.1.0 (PGO)",
          "seconds": 1.17555,
          "seconds_display": "1.18 s",
          "peak_rss_mib": 2.203125,
          "rss_display": "2.20 MiB",
          "throughput_mbs": 633.7,
          "throughput_display": "633.7 MB/s",
          "status": "OK"
        },
        {
          "tool": "lcov 2.6",
          "seconds": 37.803,
          "seconds_display": "37.80 s",
          "peak_rss_mib": 3577.375,
          "rss_display": "3.49 GiB",
          "throughput_mbs": 19.7,
          "throughput_display": "19.7 MB/s",
          "status": "OK"
        },
        {
          "tool": "lcov-result-merger 6.0.0",
          "seconds": 0.17,
          "seconds_display": "170 ms",
          "peak_rss_mib": 607.671875,
          "rss_display": "607.7 MiB",
          "throughput_mbs": null,
          "throughput_display": "—",
          "status": "ERROR_1"
        }
      ]
    },
    {
      "id": "s",
      "name": "S",
      "description": "Generated sharded LCOV input.",
      "input_size": "100.0 MB",
      "shards": "8 shards",
      "results": [
        {
          "tool": "lcovmerge 1.1.0 (PGO)",
          "seconds": 0.196619,
          "seconds_display": "197 ms",
          "peak_rss_mib": 2.484375,
          "rss_display": "2.48 MiB",
          "throughput_mbs": 508.6,
          "throughput_display": "508.6 MB/s",
          "status": "OK"
        },
        {
          "tool": "lcov 2.6",
          "seconds": 5.317,
          "seconds_display": "5.32 s",
          "peak_rss_mib": 229.78125,
          "rss_display": "229.8 MiB",
          "throughput_mbs": 18.8,
          "throughput_display": "18.8 MB/s",
          "status": "OK"
        },
        {
          "tool": "lcov-result-merger 6.0.0",
          "seconds": 17.521,
          "seconds_display": "17.52 s",
          "peak_rss_mib": 437.703125,
          "rss_display": "437.7 MiB",
          "throughput_mbs": 5.7,
          "throughput_display": "5.7 MB/s",
          "status": "OK"
        }
      ]
    },
    {
      "id": "path_heavy",
      "name": "PATH-HEAVY",
      "description": "Generated input with two million distinct source paths.",
      "input_size": "130 MB",
      "shards": "1 file",
      "results": [
        {
          "tool": "lcovmerge 1.1.0 (PGO)",
          "seconds": 2.755896,
          "seconds_display": "2.76 s",
          "peak_rss_mib": 17.78125,
          "rss_display": "17.78 MiB",
          "throughput_mbs": 47.2,
          "throughput_display": "47.2 MB/s",
          "status": "OK"
        },
        {
          "tool": "lcov 2.6",
          "seconds": 98.805,
          "seconds_display": "1m 38.8s",
          "peak_rss_mib": null,
          "rss_display": "peak resident memory unavailable for current failed run",
          "throughput_mbs": null,
          "throughput_display": "—",
          "status": "ERROR_1"
        },
        {
          "tool": "lcov-result-merger 6.0.0",
          "seconds": 1800.002,
          "seconds_display": "30m",
          "peak_rss_mib": null,
          "rss_display": "842 MiB sampled in final 5m 8s; full-run peak resident memory unavailable",
          "throughput_mbs": null,
          "throughput_display": "—",
          "status": "TIMEOUT"
        }
      ]
    },
    {
      "id": "real",
      "name": "REAL",
      "description": "No project-derived LCOV capture was available.",
      "input_size": "unavailable",
      "shards": "not supplied",
      "results": [
        {
          "tool": "lcovmerge 1.1.0 (PGO)",
          "seconds": null,
          "seconds_display": "NOT MEASURED",
          "peak_rss_mib": null,
          "rss_display": "NOT MEASURED",
          "throughput_mbs": null,
          "throughput_display": "—",
          "status": "NOT MEASURED"
        },
        {
          "tool": "lcov 2.6",
          "seconds": null,
          "seconds_display": "NOT MEASURED",
          "peak_rss_mib": null,
          "rss_display": "NOT MEASURED",
          "throughput_mbs": null,
          "throughput_display": "—",
          "status": "NOT MEASURED"
        },
        {
          "tool": "lcov-result-merger 6.0.0",
          "seconds": null,
          "seconds_display": "NOT MEASURED",
          "peak_rss_mib": null,
          "rss_display": "NOT MEASURED",
          "throughput_mbs": null,
          "throughput_display": "—",
          "status": "NOT MEASURED"
        }
      ]
    },
    {
      "id": "xxl",
      "name": "XXL",
      "description": "Generated sharded LCOV input.",
      "input_size": "20.3 GB",
      "shards": "128 shards",
      "results": [
        {
          "tool": "lcovmerge 1.1.0 (PGO)",
          "seconds": 68.269883,
          "seconds_display": "1m 8.3s",
          "peak_rss_mib": 6.328125,
          "rss_display": "6.33 MiB",
          "throughput_mbs": 297.0,
          "throughput_display": "297.0 MB/s",
          "status": "OK"
        },
        {
          "tool": "lcov 2.6",
          "seconds": 827.629171,
          "seconds_display": "13m 47.6s",
          "peak_rss_mib": 2750.125,
          "rss_display": "2.69 GiB",
          "throughput_mbs": 24.5,
          "throughput_display": "24.5 MB/s",
          "status": "OK"
        },
        {
          "tool": "lcov-result-merger 6.0.0",
          "seconds": 3615.812606,
          "seconds_display": "1h 15.8s",
          "peak_rss_mib": null,
          "rss_display": "2.34 GiB peak sampled during run; full-run peak resident memory unavailable",
          "throughput_mbs": null,
          "throughput_display": "—",
          "status": "TIMEOUT"
        }
      ]
    }
  ],
  "host_results": [
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      "entry_schema_version": 1,
      "id": "github:megasoft1978/lcovmerge:38028511293:1:88d58fcfe025d9fa92e781e0373fd9f12436bf16",
      "label": "windows-latest GitHub-hosted benchmark host (Zig -Oz and MSYS2 UCRT64 GCC -O2)",
      "measurement_date": "2026-10-10",
      "host": {
        "runner_label": "windows-latest",
        "os": "Windows-2025Server-10.0.26100-SP0",
        "kernel": "2025Server",
        "os_build": "26100",
        "architecture": "AMD64",
        "cpu_model": "INTEL(R) XEON(R) PLATINUM 8573C",
        "logical_cores": 4,
        "memory_bytes": 17174360064,
        "compiler": "Zig 0.17.0; gcc.exe (x86_64-posix-seh-rev1, Built by MinGW-Builds project) 15.2.0",
        "zig": "0.17.0",
        "gcc": "gcc.exe (x86_64-posix-seh-rev1, Built by MinGW-Builds project) 15.2.0",
        "lcov": "not measured (this run compares lcovmerge builds only)",
        "rss_tool": "Windows GetProcessMemoryInfo PeakWorkingSetSize"
      },
      "source": {
        "repository": "megasoft1978/lcovmerge",
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        "workflow": "Windows benchmark",
        "run_id": "38028511293",
        "run_attempt": "1"
      },
      "method": {
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        "repeat_counts": {
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          "M": 3,
          "L": 2
        },
        "warmup_count": 1,
        "wall_time_summary": "median and minimum of measured runs per binary",
        "rss_summary": "maximum process lifetime PeakWorkingSetSize across measured runs; unknown unless all runs are sampled",
        "rss_tool": "Windows GetProcessMemoryInfo PeakWorkingSetSize",
        "timeout_seconds_per_run": 1800,
        "cache_state": "no explicit cache flush; one warmup per binary; measured order alternates; runner load uncontrolled",
        "generator": "tools/gen-lcov.py --benchmark-compatible --checksums using native Windows Python",
        "temporary_data": "under .luna-tmp; generated dataset is removed after measurement"
      },
      "tool_labels": {
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        "lcovmerge_ucrt64_gcc": "lcovmerge 1.0.0 MSYS2 UCRT64 GCC -O2"
      },
      "datasets": [
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          "name": "S",
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          "shards": 8,
          "description": "Generated sharded LCOV input.",
          "results": {
            "lcovmerge": {
              "time_s": 0.742948,
              "median_time_s": 0.742948,
              "min_time_s": 0.735589,
              "rss_bytes": 4546560,
              "rss_mib": 4.335938,
              "rss_display": null,
              "rss_sample_count": 5,
              "throughput_mb_s": 134.6,
              "status": "OK",
              "exit_code": 0,
              "run_count": 5,
              "warmup_count": 1
            },
            "lcovmerge_ucrt64_gcc": {
              "time_s": 0.554377,
              "median_time_s": 0.554377,
              "min_time_s": 0.552852,
              "rss_bytes": 5402624,
              "rss_mib": 5.152344,
              "rss_display": null,
              "rss_sample_count": 5,
              "throughput_mb_s": 180.4,
              "status": "OK",
              "exit_code": 0,
              "run_count": 5,
              "warmup_count": 1
            }
          }
        },
        {
          "name": "M",
          "input_bytes": 1118686233,
          "shards": 32,
          "description": "Generated sharded LCOV input.",
          "results": {
            "lcovmerge": {
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              "median_time_s": 9.505662,
              "min_time_s": 9.492751,
              "rss_bytes": 6381568,
              "rss_mib": 6.085938,
              "rss_display": null,
              "rss_sample_count": 3,
              "throughput_mb_s": 117.7,
              "status": "OK",
              "exit_code": 0,
              "run_count": 3,
              "warmup_count": 1
            },
            "lcovmerge_ucrt64_gcc": {
              "time_s": 7.642444,
              "median_time_s": 7.642444,
              "min_time_s": 7.579035,
              "rss_bytes": 7249920,
              "rss_mib": 6.914062,
              "rss_display": null,
              "rss_sample_count": 3,
              "throughput_mb_s": 146.4,
              "status": "OK",
              "exit_code": 0,
              "run_count": 3,
              "warmup_count": 1
            }
          }
        },
        {
          "name": "L",
          "input_bytes": 4853340843,
          "shards": 64,
          "description": "Generated sharded LCOV input.",
          "results": {
            "lcovmerge": {
              "time_s": 652.354144,
              "median_time_s": 652.354144,
              "min_time_s": 652.062547,
              "rss_bytes": 22949888,
              "rss_mib": 21.886719,
              "rss_display": null,
              "rss_sample_count": 2,
              "throughput_mb_s": 7.4,
              "status": "OK",
              "exit_code": 0,
              "run_count": 2,
              "warmup_count": 1
            },
            "lcovmerge_ucrt64_gcc": {
              "time_s": 655.185935,
              "median_time_s": 655.185935,
              "min_time_s": 654.202,
              "rss_bytes": 23748608,
              "rss_mib": 22.648438,
              "rss_display": null,
              "rss_sample_count": 2,
              "throughput_mb_s": 7.4,
              "status": "OK",
              "exit_code": 0,
              "run_count": 2,
              "warmup_count": 1
            }
          }
        }
      ],
      "platform": "windows"
    },
    {
      "entry_schema_version": 1,
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      "label": "ubuntu-24.04 GitHub-hosted benchmark host",
      "measurement_date": "2026-10-10",
      "host": {
        "runner_label": "ubuntu-24.04",
        "os": "Linux-6.17.0-1022-azure-x86_64-with-glibc2.39",
        "kernel": "6.17.0-1022-azure",
        "architecture": "x86_64",
        "cpu_model": "INTEL(R) XEON(R) PLATINUM 8573C",
        "logical_cores": 4,
        "memory_bytes": 16765378560,
        "compiler": "cc (Ubuntu 13.3.0-6ubuntu2~24.04.1) 13.3.0",
        "lcov": "lcov: LCOV version 2.0-1",
        "hyperfine": "hyperfine 2.0.0",
        "rss_tool": "/usr/bin/time -v"
      },
      "source": {
        "repository": "megasoft1978/lcovmerge",
        "revision": "879d78537fa616bd9aa8f1fba4e490708b6496f2",
        "workflow": "Linux benchmark",
        "run_id": "38025960454",
        "run_attempt": "1"
      },
      "method": {
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        "repeat_counts": {
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          "M": 3,
          "L": 2,
          "PATH-HEAVY": 2
        },
        "warmup_count": 1,
        "wall_time_summary": "median of measured hyperfine runs",
        "rss_summary": "maximum across measured GNU /usr/bin/time -v samples; warmup excluded",
        "rss_tool": "/usr/bin/time -v",
        "timeout_seconds_per_run": 1800,
        "cache_state": "no explicit cache flush; one warmup per command; runner load uncontrolled"
      },
      "tool_labels": {
        "lcovmerge": "lcovmerge 1.0.0 built from checkout",
        "lcov": "lcov: LCOV version 2.0-1"
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      "datasets": [
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          "input_bytes": 99996906,
          "shards": 8,
          "results": {
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              "time_s": 0.588795,
              "rss_bytes": 2777088,
              "throughput_mb_s": 169.8,
              "status": "OK",
              "exit_code": 0,
              "run_count": 5,
              "warmup_count": 1
            },
            "lcov": {
              "time_s": 55.666643,
              "rss_bytes": 1133215744,
              "throughput_mb_s": 1.8,
              "status": "OK",
              "exit_code": 0,
              "run_count": 5,
              "warmup_count": 1
            }
          },
          "measurement": {
            "hyperfine_runs": 5,
            "warmup_count": 1,
            "timeout_seconds": 1800,
            "rss_source": "/usr/bin/time -v per measured hyperfine sample",
            "text_report": "/home/runner/work/lcovmerge/lcovmerge/.luna-tmp/linux-benchmark-artifact/s.txt"
          }
        },
        {
          "name": "M",
          "input_bytes": 1118686233,
          "shards": 32,
          "results": {
            "lcovmerge": {
              "time_s": 4.942996,
              "rss_bytes": 4575232,
              "throughput_mb_s": 226.3,
              "status": "OK",
              "exit_code": 0,
              "run_count": 3,
              "warmup_count": 1
            },
            "lcov": {
              "time_s": 784.57519,
              "rss_bytes": 3210846208,
              "throughput_mb_s": 1.4,
              "status": "OK",
              "exit_code": 0,
              "run_count": 3,
              "warmup_count": 1
            }
          },
          "job_scaling": {
            "1": {
              "time_s": 4.93752,
              "rss_bytes": 4575232,
              "throughput_mb_s": 226.6,
              "status": "OK",
              "exit_code": 0,
              "run_count": 3,
              "warmup_count": 1
            },
            "2": {
              "time_s": 4.877822,
              "rss_bytes": 4575232,
              "throughput_mb_s": 229.3,
              "status": "OK",
              "exit_code": 0,
              "run_count": 3,
              "warmup_count": 1
            },
            "4": {
              "time_s": 4.837058,
              "rss_bytes": 4640768,
              "throughput_mb_s": 231.3,
              "status": "OK",
              "exit_code": 0,
              "run_count": 3,
              "warmup_count": 1
            },
            "8": {
              "time_s": 4.803624,
              "rss_bytes": 4640768,
              "throughput_mb_s": 232.9,
              "status": "OK",
              "exit_code": 0,
              "run_count": 3,
              "warmup_count": 1
            }
          },
          "measurement": {
            "hyperfine_runs": 3,
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            "timeout_seconds": 1800,
            "rss_source": "/usr/bin/time -v per measured hyperfine sample",
            "text_report": "/home/runner/work/lcovmerge/lcovmerge/.luna-tmp/linux-benchmark-artifact/m.txt"
          }
        },
        {
          "name": "L",
          "input_bytes": 4853340843,
          "shards": 64,
          "results": {
            "lcovmerge": {
              "time_s": 228.651043,
              "rss_bytes": 31444992,
              "throughput_mb_s": 21.2,
              "status": "OK",
              "exit_code": 0,
              "run_count": 2,
              "warmup_count": 1
            },
            "lcov": {
              "time_s": 5400.100052,
              "rss_bytes": null,
              "throughput_mb_s": null,
              "status": "TIMEOUT",
              "exit_code": 124,
              "run_count": 2,
              "warmup_count": 1
            }
          },
          "measurement": {
            "hyperfine_runs": 2,
            "warmup_count": 1,
            "timeout_seconds": 1800,
            "rss_source": "/usr/bin/time -v per measured hyperfine sample",
            "text_report": "/home/runner/work/lcovmerge/lcovmerge/.luna-tmp/linux-benchmark-artifact/l.txt"
          }
        },
        {
          "name": "PATH-HEAVY",
          "input_bytes": 130000000,
          "shards": 1,
          "results": {
            "lcovmerge": {
              "time_s": 3.344209,
              "rss_bytes": 23433216,
              "throughput_mb_s": 38.9,
              "status": "OK",
              "exit_code": 0,
              "run_count": 2,
              "warmup_count": 1
            },
            "lcov": {
              "time_s": 153.921386,
              "rss_bytes": 11061239808,
              "throughput_mb_s": 0.8,
              "status": "OK",
              "exit_code": 0,
              "run_count": 2,
              "warmup_count": 1
            }
          },
          "measurement": {
            "hyperfine_runs": 2,
            "warmup_count": 1,
            "timeout_seconds": 1800,
            "rss_source": "/usr/bin/time -v per measured hyperfine sample",
            "text_report": "/home/runner/work/lcovmerge/lcovmerge/.luna-tmp/linux-benchmark-artifact/path_heavy.txt"
          }
        }
      ]
    },
    {
      "entry_schema_version": 1,
      "id": "github:megasoft1978/lcovmerge:38037042814:1:dcf38969f65591cfe4de9c4f5a6f446f5e7879b1",
      "label": "windows-latest GitHub-hosted benchmark host (Zig release build and MSYS2 UCRT64 GCC -O2)",
      "measurement_date": "2026-10-10",
      "host": {
        "runner_label": "windows-latest",
        "os": "Windows-2025Server-10.0.26100-SP0",
        "kernel": "2025Server",
        "os_build": "26100",
        "architecture": "AMD64",
        "cpu_model": "AMD EPYC 7763 64-Core Processor",
        "logical_cores": 4,
        "memory_bytes": 17174360064,
        "compiler": "Zig 0.17.0; gcc.exe (x86_64-posix-seh-rev1, Built by MinGW-Builds project) 15.2.0",
        "zig": "0.17.0",
        "gcc": "gcc.exe (x86_64-posix-seh-rev1, Built by MinGW-Builds project) 15.2.0",
        "lcov": "not measured (this run compares lcovmerge builds only)",
        "rss_tool": "Windows GetProcessMemoryInfo PeakWorkingSetSize"
      },
      "source": {
        "repository": "megasoft1978/lcovmerge",
        "revision": "dcf38969f65591cfe4de9c4f5a6f446f5e7879b1",
        "workflow": "Windows benchmark",
        "run_id": "38037042814",
        "run_attempt": "1"
      },
      "method": {
        "runner": "bench/run-ci-windows.py",
        "repeat_counts": {
          "S": 5,
          "M": 3,
          "L": 2
        },
        "warmup_count": 1,
        "wall_time_summary": "median and minimum of measured runs per binary",
        "rss_summary": "maximum process lifetime PeakWorkingSetSize across measured runs; unknown unless all runs are sampled",
        "rss_tool": "Windows GetProcessMemoryInfo PeakWorkingSetSize",
        "timeout_seconds_per_run": 1800,
        "cache_state": "no explicit cache flush; one warmup per binary; measured order alternates; runner load uncontrolled",
        "generator": "tools/gen-lcov.py --benchmark-compatible --checksums using native Windows Python",
        "temporary_data": "under .luna-tmp; generated dataset is removed after measurement"
      },
      "tool_labels": {
        "lcovmerge": "lcovmerge 1.0.0 Zig 0.17.0 -O2 Windows x86_64",
        "lcovmerge_ucrt64_gcc": "lcovmerge 1.0.0 MSYS2 UCRT64 GCC -O2"
      },
      "datasets": [
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          "name": "S",
          "input_bytes": 99996906,
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          "description": "Generated sharded LCOV input.",
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              "rss_mib": 4.351562,
              "rss_display": null,
              "rss_sample_count": 5,
              "throughput_mb_s": 161.5,
              "status": "OK",
              "exit_code": 0,
              "run_count": 5,
              "warmup_count": 1
            },
            "lcovmerge_ucrt64_gcc": {
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              "median_time_s": 0.602799,
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              "rss_display": null,
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              "throughput_mb_s": 165.9,
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              "exit_code": 0,
              "run_count": 5,
              "warmup_count": 1
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          }
        },
        {
          "name": "M",
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          "description": "Generated sharded LCOV input.",
          "results": {
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              "median_time_s": 8.311991,
              "min_time_s": 8.292261,
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              "rss_mib": 6.113281,
              "rss_display": null,
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              "throughput_mb_s": 134.6,
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              "run_count": 3,
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            "lcovmerge_ucrt64_gcc": {
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              "rss_display": null,
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              "throughput_mb_s": 135.1,
              "status": "OK",
              "exit_code": 0,
              "run_count": 3,
              "warmup_count": 1
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          }
        },
        {
          "name": "L",
          "input_bytes": 4853340843,
          "shards": 64,
          "description": "Generated sharded LCOV input.",
          "results": {
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              "median_time_s": 351.445061,
              "min_time_s": 345.801882,
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              "rss_display": null,
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              "throughput_mb_s": 13.8,
              "status": "OK",
              "exit_code": 0,
              "run_count": 2,
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            },
            "lcovmerge_ucrt64_gcc": {
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              "median_time_s": 346.164651,
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              "rss_mib": 22.8125,
              "rss_display": null,
              "rss_sample_count": 2,
              "throughput_mb_s": 14.0,
              "status": "OK",
              "exit_code": 0,
              "run_count": 2,
              "warmup_count": 1
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          }
        }
      ],
      "platform": "windows"
    }
  ]
}