{
  "schema_version": "1.3",
  "epoch": "v2",
  "measurement_epoch": "v2",
  "methodology_version": "2.1",
  "run_id": "contabo-eu-central-vps-4c-8gb-2026-05-04-003",
  "status": "partial",
  "provider": {
    "name": "contabo",
    "slug": "contabo"
  },
  "region": {
    "name": "eu-central",
    "slug": "eu-central"
  },
  "plan": {
    "name": "vps-4c-8gb",
    "slug": "vps-4c-8gb"
  },
  "pricing": {
    "monthly_usd": 5.0,
    "currency": "USD",
    "billing_period": "monthly"
  },
  "environment": {
    "cpu_model": "AMD EPYC Processor (with IBPB)",
    "vcpu_count": 4,
    "ram_gb": 7.76,
    "os": "Ubuntu 24.04.4 LTS",
    "kernel": "6.8.0-110-generic",
    "arch": "x86_64",
    "virtualization": "kvm",
    "hostname": "vmi3217003.contaboserver.net"
  },
  "commands": {
    "runner": "./webbynode-bench",
    "cpu": "sysbench cpu --threads=4 --time=30 --cpu-max-prime=20000 run",
    "storage": "fio --name=webbynode-storage --filename=/benchmarks/contabo/contabo-eu-central-vps-4c-8gb-2026-05-04-003/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 -t 15 -J",
      "us_east_inbound": "iperf3 -c us-east.webbynode.com -p 5201 -P 1 -t 15 -R -J",
      "eu_west_outbound": "iperf3 -c eu-west.webbynode.com -p 5201 -P 1 -t 15 -J",
      "eu_west_inbound": "iperf3 -c eu-west.webbynode.com -p 5201 -P 1 -t 15 -R -J",
      "asia_outbound": "iperf3 -c asia.webbynode.com -p 5201 -P 1 -t 15 -J",
      "asia_inbound": "iperf3 -c asia.webbynode.com -p 5201 -P 1 -t 15 -R -J"
    }
  },
  "telemetry": {
    "status": "ok",
    "backend": "mpstat",
    "cpu_steal": {
      "avg_percent": 0.139,
      "p95_percent": 0.0,
      "max_percent": 4.03,
      "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": 25012727.9288,
          "p95_bps": 222315669.6366,
          "p99_bps": 222315669.6366,
          "p99_to_p50_ratio": 1.2611
        },
        "inbound": {
          "stddev_bps": 34240609.0467,
          "p95_bps": 201829473.6374,
          "p99_bps": 201829473.6374,
          "p99_to_p50_ratio": 1.0078
        }
      },
      "eu_west": {
        "outbound": {
          "stddev_bps": 14806064.1786,
          "p95_bps": 219150633.639,
          "p99_bps": 219150633.639,
          "p99_to_p50_ratio": 1.1176
        },
        "inbound": {
          "stddev_bps": 11936299.4165,
          "p95_bps": 201318936.2911,
          "p99_bps": 201318936.2911,
          "p99_to_p50_ratio": 1.0053
        }
      },
      "asia": {
        "outbound": {
          "stddev_bps": 0.0,
          "p95_bps": 6284141.5138,
          "p99_bps": 6284141.5138,
          "p99_to_p50_ratio": 1.0
        },
        "inbound": {
          "stddev_bps": 22239309.4853,
          "p95_bps": 69202072.7247,
          "p99_bps": 69202072.7247,
          "p99_to_p50_ratio": 1.1186
        }
      }
    }
  },
  "results": {
    "cpu": {
      "status": "ok",
      "events_per_second": 2131.75,
      "latency_ms": {
        "avg": 1.87,
        "p95": 3.19,
        "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": 16710.376321,
        "write_iops": 16685.31049,
        "latency_ms": {
          "read_p95": 3.653632,
          "read_p99": 6.06208,
          "write_p95": 4.42368,
          "write_p99": 7.438336
        }
      }
    },
    "network": {
      "us_east": {
        "endpoint": {
          "slug": "us-east",
          "host": "us-east.webbynode.com"
        },
        "outbound": {
          "direction": "outbound",
          "parallel_streams": 1,
          "duration_seconds": 15,
          "retries_used": 0,
          "final_outcome": "ok",
          "result": {
            "status": "ok",
            "remote_host": "87.99.130.1",
            "sent_bps": 176904355.64873332,
            "received_bps": 175155080.7468166
          }
        },
        "inbound": {
          "direction": "inbound",
          "parallel_streams": 1,
          "duration_seconds": 15,
          "retries_used": 0,
          "final_outcome": "ok",
          "result": {
            "status": "ok",
            "remote_host": "87.99.130.1",
            "sent_bps": 187350051.3480112,
            "received_bps": 186631721.88339725
          }
        }
      },
      "eu_west": {
        "endpoint": {
          "slug": "eu-west",
          "host": "eu-west.webbynode.com"
        },
        "outbound": {
          "direction": "outbound",
          "parallel_streams": 1,
          "duration_seconds": 15,
          "retries_used": 0,
          "final_outcome": "ok",
          "result": {
            "status": "ok",
            "remote_host": "46.225.222.50",
            "sent_bps": 198015496.66656357,
            "received_bps": 196470976.3253035
          }
        },
        "inbound": {
          "direction": "inbound",
          "parallel_streams": 1,
          "duration_seconds": 15,
          "retries_used": 0,
          "final_outcome": "ok",
          "result": {
            "status": "ok",
            "remote_host": "46.225.222.50",
            "sent_bps": 196953008.24169785,
            "received_bps": 195159372.4154146
          }
        }
      },
      "asia": {
        "endpoint": {
          "slug": "asia",
          "host": "asia.webbynode.com"
        },
        "outbound": {
          "direction": "outbound",
          "parallel_streams": 1,
          "duration_seconds": 15,
          "retries_used": 0,
          "final_outcome": "failed_connection",
          "result": {
            "status": "failed_connection",
            "remote_host": "139.162.46.15",
            "sent_bps": null,
            "received_bps": null
          }
        },
        "inbound": {
          "direction": "inbound",
          "parallel_streams": 1,
          "duration_seconds": 15,
          "retries_used": 0,
          "final_outcome": "ok",
          "result": {
            "status": "ok",
            "remote_host": "139.162.46.15",
            "sent_bps": 51554567.18752914,
            "received_bps": 50817358.495094016
          }
        }
      }
    }
  },
  "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"
  },
  "agent_sim": {
    "enabled": true,
    "version": "agent_sim_v1",
    "duration_seconds": 300,
    "iterations_total": 746,
    "iterations_successful": 746,
    "iterations_failed": 0,
    "failure_rate": 0.0,
    "latency_ms": {
      "p50": 200.8800506591797,
      "p95": 211.81750297546387,
      "p99": 235.29577255249023,
      "stddev": 8.91161457109839
    },
    "iterations_per_second": {
      "start_window": 5.010685342306071,
      "end_window": 4.974113241794779
    },
    "throughput_drift_percent": 0.7298822019915668,
    "disk": {
      "write_failures": 0,
      "checksum_failures": 0
    }
  },
  "instrumentation": {
    "agent_sim_v1": {
      "window_definition": {
        "successful_task_window_percent": 10
      },
      "metrics": {
        "latency_start_avg_ms": 199.5734977722168,
        "latency_end_avg_ms": 201.0408592224121,
        "latency_start_p95_ms": 206.82621002197266,
        "latency_end_p95_ms": 209.6848487854004,
        "failure_count": 0,
        "drift_percent": 0.7352486510358632
      }
    }
  },
  "status_notes": [
    "asia_outbound=failed_connection_rc_1"
  ],
  "timestamps": {
    "started_at_utc": "2026-05-04T15:42:04Z",
    "finished_at_utc": "2026-05-04T15:49:30Z"
  }
}