{
  "schema_version": "1.4",
  "epoch": "v3",
  "measurement_epoch": "v3",
  "methodology_version": "3.0",
  "run_id": "vultr-ewr-vhf-4c-16gb-2026-08-13-003",
  "status": "partial",
  "provider": {
    "name": "vultr",
    "slug": "vultr"
  },
  "region": {
    "name": "ewr",
    "slug": "ewr"
  },
  "plan": {
    "name": "vhf-4c-16gb",
    "slug": "vhf-4c-16gb"
  },
  "pricing": {
    "monthly_usd": 96.0,
    "currency": "USD",
    "billing_period": "monthly"
  },
  "environment": {
    "cpu_model": "Intel Core Processor (Skylake, IBRS, no TSX)",
    "vcpu_count": 4,
    "ram_gb": 15.61,
    "os": "Ubuntu 24.04.4 LTS",
    "kernel": "6.8.0-136-generic",
    "arch": "x86_64",
    "virtualization": "microsoft",
    "hostname": "wn-vultr-003"
  },
  "runner": {
    "name": "webbynode-bench",
    "version": "v2.5.2-network-contention-v3",
    "command": "./webbynode-bench --provider vultr --region ewr --plan vhf-4c-16gb --price 96.00",
    "schema_version": "1.4",
    "methodology_version": "3.0"
  },
  "measurement_endpoints": {
    "us_east": {
      "slug": "us-east",
      "host": "us-east.webbynode.com",
      "provider": "Vultr",
      "region": "New Jersey",
      "resolved_ips": [
        "87.99.130.1"
      ],
      "observed_remote_hosts": [
        "87.99.130.1"
      ]
    },
    "eu_west": {
      "slug": "eu-west",
      "host": "eu-west.webbynode.com",
      "provider": "Hetzner",
      "region": "Nuremberg",
      "resolved_ips": [
        "46.225.222.50"
      ],
      "observed_remote_hosts": [
        "46.225.222.50"
      ]
    },
    "asia": {
      "slug": "asia",
      "host": "asia.webbynode.com",
      "provider": "unknown",
      "region": "unknown",
      "resolved_ips": [
        "139.162.46.15"
      ],
      "observed_remote_hosts": [
        "139.162.46.15"
      ]
    }
  },
  "commands": {
    "runner": "./webbynode-bench --provider vultr --region ewr --plan vhf-4c-16gb --price 96.00",
    "cpu": "sysbench cpu --threads=4 --time=30 --cpu-max-prime=20000 run",
    "storage": "fio --name=webbynode-storage --filename=/benchmarks/vultr/vultr-ewr-vhf-4c-16gb-2026-08-13-003/fio.test --size=2G --rw=randrw --rwmixread=50 --bs=4k --ioengine=libaio --direct=1 --iodepth=64 --numjobs=1 --time_based=1 --runtime=30 --group_reporting=1 --output-format=json",
    "network": {
      "us_east_outbound": "iperf3 -c us-east.webbynode.com -p 5201 -P 1 -b 90000000 -t 8 -J",
      "us_east_inbound": "iperf3 -c us-east.webbynode.com -p 5201 -P 1 -b 90000000 -t 8 -R -J",
      "eu_west_outbound": "iperf3 -c eu-west.webbynode.com -p 5201 -P 1 -b 90000000 -t 8 -J",
      "eu_west_inbound": "iperf3 -c eu-west.webbynode.com -p 5201 -P 1 -b 90000000 -t 8 -R -J",
      "asia_outbound": "iperf3 -c asia.webbynode.com -p 5201 -P 1 -b 90000000 -t 8 -J",
      "asia_inbound": "iperf3 -c asia.webbynode.com -p 5201 -P 1 -b 90000000 -t 8 -R -J"
    }
  },
  "telemetry": {
    "status": "ok",
    "backend": "mpstat",
    "cpu_steal": {
      "avg_percent": 0.0259,
      "p95_percent": 0.0,
      "max_percent": 0.75,
      "time_above_0_5_percent": 3.4483
    },
    "iowait": {
      "avg_percent": 0.0086,
      "p95_percent": 0.0,
      "max_percent": 0.25
    },
    "network_variance": {
      "us_east": {
        "outbound": {
          "stddev_bps": 345910.8691,
          "p95_bps": 90177896.1264,
          "p99_bps": 90177896.1264,
          "p99_to_p50_ratio": 1.0
        },
        "inbound": {
          "stddev_bps": 343832.665,
          "p95_bps": 90178530.386,
          "p99_bps": 90178530.386,
          "p99_to_p50_ratio": 1.0
        }
      },
      "eu_west": {
        "outbound": {
          "stddev_bps": 345825.8855,
          "p95_bps": 90181234.1517,
          "p99_bps": 90181234.1517,
          "p99_to_p50_ratio": 1.0001
        },
        "inbound": {
          "stddev_bps": 732944.6841,
          "p95_bps": 91228667.6966,
          "p99_bps": 91228667.6966,
          "p99_to_p50_ratio": 1.023
        }
      },
      "asia": {
        "outbound": {
          "stddev_bps": 38102218.7612,
          "p95_bps": 157287187.5039,
          "p99_bps": 157287187.5039,
          "p99_to_p50_ratio": 1.7442
        },
        "inbound": {
          "stddev_bps": 28731165.5419,
          "p95_bps": 83882220.1776,
          "p99_bps": 83882220.1776,
          "p99_to_p50_ratio": 1.4814
        }
      }
    }
  },
  "results": {
    "cpu": {
      "status": "ok",
      "events_per_second": 2327.41,
      "latency_ms": {
        "avg": 1.72,
        "p95": 2.03,
        "p99": null
      }
    },
    "storage": {
      "status": "ok",
      "profile": {
        "rw": "randrw",
        "rwmixread": 50,
        "ioengine": "libaio",
        "direct": 1,
        "size": "2G",
        "block_size": "4k",
        "io_depth": 64,
        "num_jobs": 1,
        "runtime_seconds": 30
      },
      "fio": {
        "status": "ok",
        "fio_version": "fio-3.36",
        "read_iops": 70163.79454,
        "write_iops": 70083.9972,
        "latency_ms": {
          "read_p95": 0.741376,
          "read_p99": 1.073152,
          "write_p95": 0.733184,
          "write_p99": 3.063808
        }
      }
    },
    "network": {
      "traffic_budget": {
        "protocol_version": "3.0",
        "scope": "three-run-cluster",
        "cluster_limit_bytes": 1000000000,
        "run_limit_bytes": 333333333,
        "planned_payload_bytes": 270000000,
        "measured_provider_egress_bytes": 271964037,
        "application_bytes_sent": 270139392,
        "offered_load_bps": 90000000,
        "measurement_seconds": 8,
        "egress_interface": "enp1s0",
        "enforcement": "os-interface-counter-process-guard",
        "status": "payload_noncompliant"
      },
      "us_east": {
        "endpoint": {
          "slug": "us-east",
          "host": "us-east.webbynode.com"
        },
        "outbound": {
          "direction": "outbound",
          "parallel_streams": 1,
          "duration_seconds": 8,
          "retries_used": 0,
          "final_outcome": "ok",
          "result": {
            "status": "ok",
            "remote_host": "87.99.130.1",
            "sent_bps": 90043605.1155376,
            "received_bps": 89973888.81193706
          },
          "application_bytes_sent": 90046464,
          "measured_seconds": 8.000254,
          "achieved_bps": 90043605.1155376,
          "offered_load_bps": 90000000,
          "attainment_ratio": 1.000484501283751
        },
        "inbound": {
          "direction": "inbound",
          "parallel_streams": 1,
          "duration_seconds": 8,
          "retries_used": 0,
          "final_outcome": "ok",
          "result": {
            "status": "ok",
            "remote_host": "87.99.130.1",
            "sent_bps": 90094941.46241432,
            "received_bps": 90034759.48126744
          },
          "application_bytes_sent": null,
          "measured_seconds": 8.007334,
          "achieved_bps": 90094941.46241432,
          "offered_load_bps": 90000000,
          "attainment_ratio": 1.001054905137937
        }
      },
      "eu_west": {
        "endpoint": {
          "slug": "eu-west",
          "host": "eu-west.webbynode.com"
        },
        "outbound": {
          "direction": "outbound",
          "parallel_streams": 1,
          "duration_seconds": 8,
          "retries_used": 0,
          "final_outcome": "ok",
          "result": {
            "status": "ok",
            "remote_host": "46.225.222.50",
            "sent_bps": 90043436.28945477,
            "received_bps": 88932333.98018306
          },
          "application_bytes_sent": 90046464,
          "measured_seconds": 8.000269,
          "achieved_bps": 90043436.28945477,
          "offered_load_bps": 90000000,
          "attainment_ratio": 1.0004826254383863
        },
        "inbound": {
          "direction": "inbound",
          "parallel_streams": 1,
          "duration_seconds": 8,
          "retries_used": 0,
          "final_outcome": "ok",
          "result": {
            "status": "ok",
            "remote_host": "46.225.222.50",
            "sent_bps": 90089428.02089526,
            "received_bps": 89903165.16953695
          },
          "application_bytes_sent": null,
          "measured_seconds": 8.089299,
          "achieved_bps": 90089428.02089526,
          "offered_load_bps": 90000000,
          "attainment_ratio": 1.000993644676614
        }
      },
      "asia": {
        "endpoint": {
          "slug": "asia",
          "host": "asia.webbynode.com"
        },
        "outbound": {
          "direction": "outbound",
          "parallel_streams": 1,
          "duration_seconds": 8,
          "retries_used": 0,
          "final_outcome": "ok",
          "result": {
            "status": "ok",
            "remote_host": "139.162.46.15",
            "sent_bps": 90043695.15637393,
            "received_bps": 87257040.808974
          },
          "application_bytes_sent": 90046464,
          "measured_seconds": 8.000246,
          "achieved_bps": 90043695.15637393,
          "offered_load_bps": 90000000,
          "attainment_ratio": 1.000485501737488
        },
        "inbound": {
          "direction": "inbound",
          "parallel_streams": 1,
          "duration_seconds": 8,
          "retries_used": 0,
          "final_outcome": "ok",
          "result": {
            "status": "ok",
            "remote_host": "139.162.46.15",
            "sent_bps": 51501279.79781943,
            "received_bps": 49411284.321919866
          },
          "application_bytes_sent": null,
          "measured_seconds": 8.225518,
          "achieved_bps": 51501279.79781943,
          "offered_load_bps": 90000000,
          "attainment_ratio": 0.5722364421979936
        }
      }
    }
  },
  "provenance": {
    "generated_by": "Webbynode",
    "dataset_name": "Webbynode Infrastructure Benchmark Dataset",
    "canonical_source": "https://webbynode.com",
    "canonical_run_url": "https://webbynode.com/benchmarks/vultr-ewr-vhf-4c-16gb-2026-08-13-003",
    "attribution_required": true,
    "preferred_attribution": "Webbynode Infrastructure Benchmark Dataset",
    "preferred_citation_url": "https://webbynode.com",
    "reuse_note": "Published benchmark data should preserve this provenance context or cite the canonical Webbynode benchmark URL.",
    "verification_context": {
      "artifact_manifest": "artifact-manifest.sha256",
      "hash_algorithm": "sha256",
      "purpose": "Canonical source, attribution, and verification context for this Webbynode benchmark artifact bundle."
    }
  },
  "artifacts": {
    "run_log": "run.log",
    "run_md": "run.md",
    "raw_sysbench_log": "raw.sysbench.log",
    "raw_fio_log": "raw.fio.log",
    "raw_iperf_us_out_log": "raw.iperf-us-east-outbound.log",
    "raw_iperf_us_in_log": "raw.iperf-us-east-inbound.log",
    "raw_iperf_eu_out_log": "raw.iperf-eu-west-outbound.log",
    "raw_iperf_eu_in_log": "raw.iperf-eu-west-inbound.log",
    "raw_iperf_asia_out_log": "raw.iperf-asia-outbound.log",
    "raw_iperf_asia_in_log": "raw.iperf-asia-inbound.log",
    "telemetry_log": "telemetry.log",
    "agent_sim_json": "agent-sim.json",
    "raw_agent_sim_log": "raw.agent-sim.log",
    "raw_system_telemetry_log": "raw.system-telemetry.log",
    "system_telemetry_json": "system-telemetry.json",
    "artifact_manifest_sha256": "artifact-manifest.sha256",
    "artifact_provenance_json": "artifact-provenance.json"
  },
  "agent_sim": {
    "enabled": true,
    "version": "agent_sim_v2",
    "duration_seconds": 300,
    "iterations_total": 1280,
    "iterations_successful": 1280,
    "iterations_failed": 0,
    "failure_rate": 0.0,
    "failure_types": {},
    "phase_windows": {
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      "final_window_percent": 10,
      "steady_state_percent": 80
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    "latency_ms": {
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      "min": 24.724960327148438,
      "max": 5046.332597732544,
      "p50": 25.797128677368164,
      "p95": 27.897357940673828,
      "p99": 34.032344818115234,
      "stddev": 198.0103264280896
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    "iterations_per_second": {
      "start_window": 37.49723850597432,
      "end_window": 15.35150143330858
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    "throughput_drift_percent": 59.05964800351185,
    "disk": {
      "write_failures": 0,
      "checksum_failures": 0
    }
  },
  "instrumentation": {
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      "window_definition": {
        "successful_task_window_percent": 10,
        "successful_task_window_count": 128
      },
      "metrics": {
        "latency_avg_ms": 33.972288481891155,
        "latency_p50_ms": 25.797128677368164,
        "latency_p95_ms": 27.897357940673828,
        "latency_p99_ms": 34.032344818115234,
        "latency_min_ms": 24.724960327148438,
        "latency_max_ms": 5046.332597732544,
        "latency_start_avg_ms": 26.66863054037094,
        "latency_end_avg_ms": 65.14020822942257,
        "latency_start_p95_ms": 31.136274337768555,
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        "failure_count": 0,
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        "drift_percent": 144.2577924307489
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      "phase_windows": {
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        "steady_state_percent": 80
      }
    },
    "system_telemetry_v1": {
      "source_artifacts": {
        "raw_system_telemetry_log": "raw.system-telemetry.log",
        "system_telemetry_json": "system-telemetry.json"
      },
      "metrics": {
        "version": "system_telemetry_v1",
        "source": "raw.system-telemetry.log",
        "samples_count": 1280,
        "cpu_steal_avg_percent": 0.0008492187499999999,
        "cpu_steal_p95_percent": 0.0,
        "cpu_steal_max_percent": 1.087,
        "cpu_iowait_avg_percent": 0.003406171875,
        "cpu_iowait_p95_percent": 0.0,
        "cpu_iowait_max_percent": 1.0989,
        "load_1m_avg": 0.179828125,
        "mem_available_min_mb": 15469.699
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    },
    "agent_sim_v1": {
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        "successful_task_window_count": 128
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      "metrics": {
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        "latency_start_p95_ms": 31.136274337768555,
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        "failure_count": 0,
        "failure_types": {},
        "drift_percent": 144.2577924307489
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      "phase_windows": {
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        "final_window_percent": 10,
        "steady_state_percent": 80
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    }
  },
  "artifact_hashes": {
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    "raw_sysbench_log_sha256": "254805fd4aee14a0ad3ad5e39650339b6bbd46503b803246d750dbb5b322a91b",
    "raw_fio_log_sha256": "134e5ec00865cea360543e552597cd991053afdc60a7c2e0678c1a0cb7fe22d1",
    "raw_iperf_us_out_log_sha256": "49224763b395bf82812fef3b085f16a849371c1baf379eae0c98f5d9e76a129e",
    "raw_iperf_us_in_log_sha256": "0442b02d508c67a20e4eb9aa07c3484e977dc1c8ae81a75daccc99aff760f383",
    "raw_iperf_eu_out_log_sha256": "f0826f93b2aa03022dd35f3da5b8c972eade040a4f74d9956bb19df139a9f4de",
    "raw_iperf_eu_in_log_sha256": "78df04d40d69195aa25c647e02f056fe0cc8f15f08cf77a81fa240da0a4c4e91",
    "raw_iperf_asia_out_log_sha256": "31cf5011b23b543816e260e88097fe6661bfddf5ab2b62607680da7b56ef37d2",
    "raw_iperf_asia_in_log_sha256": "588dc4e31692ab7de0ef362ed0dff2fae78686056d0a930cc7f270a5a27ae001",
    "telemetry_log_sha256": "013d6739b4c59969acdbce863895da3ebaeafcd3a9bfd407d81b84c19453d515",
    "agent_sim_json_sha256": "797b1b8cb5f6a13685f5501c9577d28577be5b15c3ab501a5e341ed40dbb9960",
    "raw_agent_sim_log_sha256": "dcd847c36435a61a17228ca04b92938a7222b1ec841b609da78c6bb35125b131",
    "raw_system_telemetry_log_sha256": "69f4de1bedac9661287ada2cd1e9c2856493984266a846af77c81cb0a950fa15",
    "system_telemetry_json_sha256": "a8415aed86aa8a34802780baf2eae358c693767b9fd528cfc466f81d19e7c9d6",
    "artifact_provenance_json_sha256": "ed6bf9dd68a9c0689dd539b2339c0fc40f681f811c931bfc8ff84e2f5f326060"
  },
  "integrity": {
    "hash_algorithm": "sha256",
    "run_json_self_hash_note": "Final run.json and run.log hashes are written to artifact-manifest.sha256 after validation/logging completes.",
    "append_only_required": true
  },
  "status_notes": [
    "network_stagger=44s",
    "network_budget=payload_noncompliant"
  ],
  "timestamps": {
    "started_at_utc": "2026-08-13T14:16:51Z",
    "finished_at_utc": "2026-08-13T14:24:34Z"
  }
}