{
  "schema_version": "1.4",
  "epoch": "v3",
  "measurement_epoch": "v3",
  "methodology_version": "3.0",
  "run_id": "vultr-lon-vc2-4c-8gb-2026-08-13-003",
  "status": "partial",
  "provider": {
    "name": "vultr",
    "slug": "vultr"
  },
  "region": {
    "name": "lon",
    "slug": "lon"
  },
  "plan": {
    "name": "vc2-4c-8gb",
    "slug": "vc2-4c-8gb"
  },
  "pricing": {
    "monthly_usd": 40.0,
    "currency": "USD",
    "billing_period": "monthly"
  },
  "environment": {
    "cpu_model": "Intel Xeon Processor (Skylake, IBRS)",
    "vcpu_count": 4,
    "ram_gb": 7.75,
    "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 lon --plan vc2-4c-8gb --price 40.00",
    "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 lon --plan vc2-4c-8gb --price 40.00",
    "cpu": "sysbench cpu --threads=4 --time=30 --cpu-max-prime=20000 run",
    "storage": "fio --name=webbynode-storage --filename=/benchmarks/vultr/vultr-lon-vc2-4c-8gb-2026-08-13-003/fio.test --size=1G --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": 0.0431,
      "p95_percent": 0.0,
      "max_percent": 1.25,
      "time_above_0_5_percent": 3.4483
    },
    "iowait": {
      "avg_percent": 0.0,
      "p95_percent": 0.0,
      "max_percent": 0.0
    },
    "network_variance": {
      "us_east": {
        "outbound": {
          "stddev_bps": 345473.523,
          "p95_bps": 90179159.2792,
          "p99_bps": 90179159.2792,
          "p99_to_p50_ratio": 1.0
        },
        "inbound": {
          "stddev_bps": 882239.2004,
          "p95_bps": 91228667.6966,
          "p99_bps": 91228667.6966,
          "p99_to_p50_ratio": 1.0233
        }
      },
      "eu_west": {
        "outbound": {
          "stddev_bps": 345496.1881,
          "p95_bps": 90178347.6323,
          "p99_bps": 90178347.6323,
          "p99_to_p50_ratio": 1.0
        },
        "inbound": {
          "stddev_bps": 989397.0896,
          "p95_bps": 91229124.4745,
          "p99_bps": 91229124.4745,
          "p99_to_p50_ratio": 1.0127
        }
      },
      "asia": {
        "outbound": {
          "stddev_bps": 40173991.3357,
          "p95_bps": 167772660.0015,
          "p99_bps": 167772660.0015,
          "p99_to_p50_ratio": 1.8605
        },
        "inbound": {
          "stddev_bps": 33805572.0917,
          "p95_bps": 94371277.5034,
          "p99_bps": 94371277.5034,
          "p99_to_p50_ratio": 1.0714
        }
      }
    }
  },
  "results": {
    "cpu": {
      "status": "ok",
      "events_per_second": 1718.47,
      "latency_ms": {
        "avg": 2.33,
        "p95": 2.39,
        "p99": null
      }
    },
    "storage": {
      "status": "ok",
      "profile": {
        "rw": "randrw",
        "rwmixread": 50,
        "ioengine": "libaio",
        "direct": 1,
        "size": "1G",
        "block_size": "4k",
        "io_depth": 64,
        "num_jobs": 1,
        "runtime_seconds": 30
      },
      "fio": {
        "status": "ok",
        "fio_version": "fio-3.36",
        "read_iops": 33092.796907,
        "write_iops": 33050.631646,
        "latency_ms": {
          "read_p95": 2.00704,
          "read_p99": 2.670592,
          "write_p95": 1.777664,
          "write_p99": 4.079616
        }
      }
    },
    "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": 271729913,
        "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": 90042772.2463379,
            "received_bps": 89070778.3443497
          },
          "application_bytes_sent": 90046464,
          "measured_seconds": 8.000328,
          "achieved_bps": 90042772.2463379,
          "offered_load_bps": 90000000,
          "attainment_ratio": 1.0004752471815324
        },
        "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": 90093027.4420889,
            "received_bps": 89906008.0604087
          },
          "application_bytes_sent": null,
          "measured_seconds": 8.077337,
          "achieved_bps": 90093027.4420889,
          "offered_load_bps": 90000000,
          "attainment_ratio": 1.0010336382454323
        }
      },
      "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": 90042760.9914542,
            "received_bps": 89680910.05055904
          },
          "application_bytes_sent": 90046464,
          "measured_seconds": 8.000329,
          "achieved_bps": 90042760.9914542,
          "offered_load_bps": 90000000,
          "attainment_ratio": 1.000475122127269
        },
        "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": 90055821.309584,
            "received_bps": 89902783.13466536
          },
          "application_bytes_sent": null,
          "measured_seconds": 8.022456,
          "achieved_bps": 90055821.309584,
          "offered_load_bps": 90000000,
          "attainment_ratio": 1.0006202367731556
        }
      },
      "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": 90043256.20899756,
            "received_bps": 87495489.2627985
          },
          "application_bytes_sent": 90046464,
          "measured_seconds": 8.000285,
          "achieved_bps": 90043256.20899756,
          "offered_load_bps": 90000000,
          "attainment_ratio": 1.0004806245444173
        },
        "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": 72812668.30294786,
            "received_bps": 71040357.9966438
          },
          "application_bytes_sent": null,
          "measured_seconds": 8.237378,
          "achieved_bps": 72812668.30294786,
          "offered_load_bps": 90000000,
          "attainment_ratio": 0.8090296478105318
        }
      }
    }
  },
  "provenance": {
    "generated_by": "Webbynode",
    "dataset_name": "Webbynode Infrastructure Benchmark Dataset",
    "canonical_source": "https://webbynode.com",
    "canonical_run_url": "https://webbynode.com/benchmarks/vultr-lon-vc2-4c-8gb-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": 795,
    "iterations_successful": 795,
    "iterations_failed": 0,
    "failure_rate": 0.0,
    "failure_types": {},
    "phase_windows": {
      "warmup_percent": 10,
      "final_window_percent": 10,
      "steady_state_percent": 80
    },
    "latency_ms": {
      "avg": 176.69805670684238,
      "min": 170.1030731201172,
      "max": 464.99061584472656,
      "p50": 175.43506622314453,
      "p95": 184.5223903656006,
      "p99": 191.10584259033203,
      "stddev": 11.043835062150524
    },
    "iterations_per_second": {
      "start_window": 5.625168753728173,
      "end_window": 5.647388971219169
    },
    "throughput_drift_percent": 0.39501423803987856,
    "disk": {
      "write_failures": 0,
      "checksum_failures": 0
    }
  },
  "instrumentation": {
    "agent_sim_v2": {
      "window_definition": {
        "successful_task_window_percent": 10,
        "successful_task_window_count": 80
      },
      "metrics": {
        "latency_avg_ms": 176.69805670684238,
        "latency_p50_ms": 175.43506622314453,
        "latency_p95_ms": 184.5223903656006,
        "latency_p99_ms": 191.10584259033203,
        "latency_min_ms": 170.1030731201172,
        "latency_max_ms": 464.99061584472656,
        "latency_start_avg_ms": 177.77244448661804,
        "latency_end_avg_ms": 177.0729809999466,
        "latency_start_p95_ms": 188.17901611328125,
        "latency_end_p95_ms": 185.9591007232666,
        "failure_count": 0,
        "failure_types": {},
        "drift_percent": -0.393460014959799
      },
      "phase_windows": {
        "warmup_percent": 10,
        "final_window_percent": 10,
        "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": 795,
        "cpu_steal_avg_percent": 0.0,
        "cpu_steal_p95_percent": 0.0,
        "cpu_steal_max_percent": 0.0,
        "cpu_iowait_avg_percent": 0.005820503144654088,
        "cpu_iowait_p95_percent": 0.0,
        "cpu_iowait_max_percent": 0.6667,
        "load_1m_avg": 0.11095597484276729,
        "mem_available_min_mb": 7441.293
      }
    },
    "agent_sim_v1": {
      "window_definition": {
        "successful_task_window_percent": 10,
        "successful_task_window_count": 80
      },
      "metrics": {
        "latency_avg_ms": 176.69805670684238,
        "latency_p50_ms": 175.43506622314453,
        "latency_p95_ms": 184.5223903656006,
        "latency_p99_ms": 191.10584259033203,
        "latency_min_ms": 170.1030731201172,
        "latency_max_ms": 464.99061584472656,
        "latency_start_avg_ms": 177.77244448661804,
        "latency_end_avg_ms": 177.0729809999466,
        "latency_start_p95_ms": 188.17901611328125,
        "latency_end_p95_ms": 185.9591007232666,
        "failure_count": 0,
        "failure_types": {},
        "drift_percent": -0.393460014959799
      },
      "phase_windows": {
        "warmup_percent": 10,
        "final_window_percent": 10,
        "steady_state_percent": 80
      }
    }
  },
  "artifact_hashes": {
    "run_md_sha256": "ecf413c4856a18da99ab7fbe8e3f1f8fbba952efbe28d6e8a26d75b6068761fb",
    "raw_sysbench_log_sha256": "d7474e4ff6152fa610213839859646bba862a4a365ec354f4b139cc683f580fc",
    "raw_fio_log_sha256": "d413f8bd48326cdc18253ec70f5c079283985f13d42b70371b19d57057a3ae3e",
    "raw_iperf_us_out_log_sha256": "b785e6676a523ae3f5a1130056387253275235c2683e5b0daea5a992ae45903a",
    "raw_iperf_us_in_log_sha256": "0970a94fd458a708b06fd7e331b0eb1a370524108d502753971fcec37e81e658",
    "raw_iperf_eu_out_log_sha256": "641c5056296b6b1d4a6a0f48cc011d930612354f242ec05f1502486b47da5c14",
    "raw_iperf_eu_in_log_sha256": "d2769b046dcaf1c968beff4e10ae95ba4637c8003f8becb9f83edc90e6071df5",
    "raw_iperf_asia_out_log_sha256": "c701701260f5b5b370aeacff79d8c45d8e4ac426faec2625ac4e7929396616da",
    "raw_iperf_asia_in_log_sha256": "ac3793a422581d842f244074974af091852d542f9f64e80205c5238ab3c5b454",
    "telemetry_log_sha256": "2d0dd6869318beff5398907dba08db60f3fd14780e442d81968abb9773a399d9",
    "agent_sim_json_sha256": "97ac1e305020219a2af5b6b49ed2438f7cdf79f6885bedc9bf91219c7796f6a4",
    "raw_agent_sim_log_sha256": "ac90908c45c1292b4a6e8bc356524313d52b89a12d46e1b60a44ed85a55ddca2",
    "raw_system_telemetry_log_sha256": "4f1986df664c281aead2cd753ab006ce2de0241c481b8e0642fd5806ccb1dfd7",
    "system_telemetry_json_sha256": "50bef122b189c1f2434ae3dbdaeb30ae7e9fc21f7624e84dafdad6ebc63d0622",
    "artifact_provenance_json_sha256": "6b380ce515875e1a941b522c99bd50fcfab39513f20805632b02d80793a8590e"
  },
  "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": "2026-08-13T14:53:30Z",
    "finished_at_utc": "2026-08-13T15:01:12Z"
  }
}