{
  "status": "complete",
  "started_at": "2026-09-20T17:58:44.010449+00:00",
  "completed_at": "2026-09-20T17:59:51.129499+00:00",
  "pool": "BigTank",
  "dataset": "BigTank/agent-concurrency-20260920",
  "scope": "Local one vs four bulk streams; not a concurrent-app/user capacity test",
  "results": [
    {
      "utc": "2026-09-20T17:59:12.838049+00:00",
      "name": "four-concurrent-writers-flushed",
      "jobs": [
        {
          "job_index": 0,
          "jobname": "four-concurrent-writers-flushed",
          "direction": "write",
          "bytes": 1073741824,
          "runtime_ms": 21250,
          "MBs": 50.529027,
          "iops": 48.188235,
          "clat_mean_ms": 19.52526459082,
          "p99_ms": 1082.130432
        },
        {
          "job_index": 1,
          "jobname": "four-concurrent-writers-flushed",
          "direction": "write",
          "bytes": 1073741824,
          "runtime_ms": 21250,
          "MBs": 50.529027,
          "iops": 48.188235,
          "clat_mean_ms": 19.524182094727,
          "p99_ms": 1082.130432
        },
        {
          "job_index": 2,
          "jobname": "four-concurrent-writers-flushed",
          "direction": "write",
          "bytes": 1073741824,
          "runtime_ms": 21229,
          "MBs": 50.57901,
          "iops": 48.235904,
          "clat_mean_ms": 19.522314223633,
          "p99_ms": 1082.130432
        },
        {
          "job_index": 3,
          "jobname": "four-concurrent-writers-flushed",
          "direction": "write",
          "bytes": 1073741824,
          "runtime_ms": 20845,
          "MBs": 51.510761,
          "iops": 49.12449,
          "clat_mean_ms": 19.516195535156,
          "p99_ms": 1082.130432
        }
      ],
      "total_bytes": 4294967296,
      "wall_seconds": 21.695350912981667,
      "aggregate_wall_MBs": 197.96717339243662,
      "aggregate_max_job_runtime_MBs": 202.11610804705882,
      "physical_read_MiB": 0.0,
      "physical_write_MiB": 8304.9140625,
      "temperatures_during": [
        {
          "sdg": 58,
          "sdh": 55,
          "sdi": 44,
          "sdj": 54
        }
      ],
      "temperatures_after": {
        "sdg": 58,
        "sdh": 55,
        "sdi": 44,
        "sdj": 54
      }
    },
    {
      "utc": "2026-09-20T17:59:32.220731+00:00",
      "name": "one-reader-four-files",
      "jobs": [
        {
          "job_index": 0,
          "jobname": "one-reader-four-files",
          "direction": "read",
          "bytes": 4294967296,
          "runtime_ms": 9890,
          "MBs": 434.27374,
          "iops": 414.155713,
          "clat_mean_ms": 2.411581536865,
          "p99_ms": 31.850496
        }
      ],
      "total_bytes": 4294967296,
      "wall_seconds": 10.319729495968204,
      "aggregate_wall_MBs": 416.1899105667443,
      "aggregate_max_job_runtime_MBs": 434.2737407482305,
      "physical_read_MiB": 4096.37109375,
      "physical_write_MiB": 20.8828125,
      "temperatures_during": [
        {
          "sdg": 58,
          "sdh": 55,
          "sdi": 44,
          "sdj": 54
        }
      ],
      "temperatures_after": {
        "sdg": 58,
        "sdh": 55,
        "sdi": 44,
        "sdj": 54
      }
    },
    {
      "utc": "2026-09-20T17:59:47.176567+00:00",
      "name": "four-concurrent-readers",
      "jobs": [
        {
          "job_index": 0,
          "jobname": "four-concurrent-readers",
          "direction": "read",
          "bytes": 1073741824,
          "runtime_ms": 8064,
          "MBs": 133.152507,
          "iops": 126.984127,
          "clat_mean_ms": 7.871118872069999,
          "p99_ms": 106.430464
        },
        {
          "job_index": 1,
          "jobname": "four-concurrent-readers",
          "direction": "read",
          "bytes": 1073741824,
          "runtime_ms": 8220,
          "MBs": 130.625526,
          "iops": 124.574209,
          "clat_mean_ms": 8.024182876953,
          "p99_ms": 102.23616
        },
        {
          "job_index": 2,
          "jobname": "four-concurrent-readers",
          "direction": "read",
          "bytes": 1073741824,
          "runtime_ms": 7929,
          "MBs": 135.419576,
          "iops": 129.146172,
          "clat_mean_ms": 7.740125709961,
          "p99_ms": 95.944704
        },
        {
          "job_index": 3,
          "jobname": "four-concurrent-readers",
          "direction": "read",
          "bytes": 1073741824,
          "runtime_ms": 8222,
          "MBs": 130.593751,
          "iops": 124.543907,
          "clat_mean_ms": 8.025438921875,
          "p99_ms": 98.041856
        }
      ],
      "total_bytes": 4294967296,
      "wall_seconds": 8.703357527963817,
      "aggregate_wall_MBs": 493.4839551518256,
      "aggregate_max_job_runtime_MBs": 522.3750055947459,
      "physical_read_MiB": 4096.46484375,
      "physical_write_MiB": 23.59375,
      "temperatures_during": [],
      "temperatures_after": {
        "sdg": 58,
        "sdh": 55,
        "sdi": 44,
        "sdj": 54
      }
    }
  ],
  "parameters": {
    "files": 4,
    "bytes_per_file": 1073741824,
    "total_bytes_per_pass": 4294967296,
    "block_size_bytes": 1048576,
    "recordsize_bytes": 131072,
    "ioengine": "psync",
    "queue_depth_per_job": 1,
    "compression": "off",
    "sync": "standard",
    "primarycache": "metadata",
    "secondarycache": "none",
    "write_end_fsync": true
  },
  "cleanup": {
    "kind": "deleted",
    "utc": "2026-09-20T17:59:48.120143+00:00",
    "name": "BigTank/agent-concurrency-20260920"
  },
  "final_health": "all pools are healthy\n",
  "final_temperatures": {
    "sdg": 58,
    "sdh": 56,
    "sdi": 44,
    "sdj": 54
  },
  "limitations": [
    "Live production background continued; physical disk counters include background.",
    "Aggregate fio-rate estimate divides total bytes by longest job duration, not sum of individual MB/s. Wall rate includes process startup.",
    "Four distinct1GiB files written concurrently; reader comparisons use these same files,4GiB total per pass.",
    "One bounded pass per mode; no confidence interval, prolonged steady state, mixed random applications, SMB or application latency measured.",
    "Metadata remains cached; physical counters verify payloads came from devices, not RAM ARC.",
    "P99 read/write completion latency applies to1MiB requests, not HTTP or user request latency.",
    "Buffered writes may throttle during TXG flush; final fsync completes before each job ends."
  ],
  "independent_cleanup_verified_absent": true
}