{
  "kind": "horizon-server-benchmark",
  "date": "2026-10-18T19:32:00+00:00",
  "machine": {
    "system": "Linux",
    "machine": "x86_64",
    "cpus": 4,
    "name": "ThinkPad, Intel Core i7-7500U, 32 GB, NixOS"
  },
  "commit": "f1d5bf520986b00a5b968a84d85809fca1a039fa",
  "engine": "horizon-engine: the server build of #916 (horizon-client --no-default-features) at 519ec121, as install.sh --archive installed it",
  "java": [
    "openjdk 25.0.4.1 2026-08-18"
  ],
  "settings": {
    "servers": "horizon,vanilla",
    "bots": "1,10,25,50",
    "behaviour": "mixed",
    "join_every": 1.0,
    "warmup": 300,
    "seconds": 300,
    "seed": 12345,
    "explore_speed": 0.8,
    "gamerule": "",
    "heap": "4g",
    "nice": 19,
    "bots_via": "ssh macmini",
    "connect": "the ThinkPad's tailnet address",
    "properties": {
      "level-seed": "12345",
      "view-distance": "10",
      "simulation-distance": "10",
      "online-mode": "false",
      "white-list": "false",
      "gamemode": "creative",
      "force-gamemode": "true",
      "spawn-protection": "0",
      "max-players": "200",
      "difficulty": "easy",
      "sync-chunk-writes": "true"
    }
  },
  "note": "server_bench.py was stopped after vanilla's 50-bot server crashed, before it wrote this file; the runs are the lines it printed, and the vanilla 50 entry is taken from that server's log.",
  "runs": [
    {
      "server": "horizon",
      "bots": 1,
      "behaviour": "mixed",
      "start_seconds": 19.73,
      "mspt": {
        "average": 1.77,
        "p50": 1.34,
        "p95": 4.21,
        "p99": 13.04
      },
      "mspt_worst_p99": 47.5,
      "tps": 20.0,
      "rss_mb": {
        "mean": 686.54,
        "max": 686.7
      },
      "cpu_percent": 27.92,
      "chunks_per_second": 9.94,
      "unique_per_second": 0.01,
      "forgotten_per_second": 9.9,
      "waited_ticks_per_second": 0.0,
      "chunks_total": 6092,
      "chunks_per_bot": {
        "walk": 6092.0
      },
      "unique_chunks_per_bot": {
        "walk": 699.0
      },
      "resent": 0,
      "pulled_back": 0,
      "moved_too_quickly": 0,
      "moved_wrongly": 0,
      "bots_joined": 1,
      "bots_failed": [],
      "tick_queries": 58
    },
    {
      "server": "vanilla",
      "bots": 1,
      "behaviour": "mixed",
      "start_seconds": 20.45,
      "mspt": {
        "average": 11.34,
        "p50": 10.6,
        "p95": 17.12,
        "p99": 33.22
      },
      "mspt_worst_p99": 119.1,
      "tps": 20.0,
      "rss_mb": {
        "mean": 3404.16,
        "max": 3416.3
      },
      "cpu_percent": 35.93,
      "chunks_per_second": 9.98,
      "unique_per_second": 0.01,
      "forgotten_per_second": 9.93,
      "waited_ticks_per_second": 0.0,
      "chunks_total": 6084,
      "chunks_per_bot": {
        "walk": 6084.0
      },
      "unique_chunks_per_bot": {
        "walk": 699.0
      },
      "resent": 0,
      "pulled_back": 0,
      "moved_too_quickly": 0,
      "moved_wrongly": 0,
      "bots_joined": 1,
      "bots_failed": [],
      "tick_queries": 59
    },
    {
      "server": "horizon",
      "bots": 10,
      "behaviour": "mixed",
      "start_seconds": 19.54,
      "mspt": {
        "average": 4.74,
        "p50": 3.83,
        "p95": 10.48,
        "p99": 19.69
      },
      "mspt_worst_p99": 120.1,
      "tps": 20.0,
      "rss_mb": {
        "mean": 855.26,
        "max": 882.7
      },
      "cpu_percent": 29.78,
      "chunks_per_second": 61.35,
      "unique_per_second": 1.79,
      "forgotten_per_second": 61.47,
      "waited_ticks_per_second": 0.0,
      "chunks_total": 40762,
      "chunks_per_bot": {
        "walk": 6247.67,
        "explore": 1165.0,
        "idle": 473.0
      },
      "unique_chunks_per_bot": {
        "walk": 701.83,
        "explore": 1086.0,
        "idle": 473.0
      },
      "resent": 0,
      "pulled_back": 4159,
      "moved_too_quickly": 0,
      "moved_wrongly": 0,
      "bots_joined": 10,
      "bots_failed": [],
      "tick_queries": 58
    },
    {
      "server": "vanilla",
      "bots": 10,
      "behaviour": "mixed",
      "start_seconds": 19.95,
      "mspt": {
        "average": 34.3,
        "p50": 32.2,
        "p95": 53.72,
        "p99": 89.08
      },
      "mspt_worst_p99": 375.8,
      "tps": 20.0,
      "rss_mb": {
        "mean": 3713.5,
        "max": 3754.9
      },
      "cpu_percent": 128.07,
      "chunks_per_second": 61.66,
      "unique_per_second": 1.93,
      "forgotten_per_second": 61.71,
      "waited_ticks_per_second": 0.0,
      "chunks_total": 37568,
      "chunks_per_bot": {
        "walk": 5729.0,
        "explore": 1124.0,
        "idle": 473.0
      },
      "unique_chunks_per_bot": {
        "walk": 701.17,
        "explore": 1055.0,
        "idle": 473.0
      },
      "resent": 0,
      "pulled_back": 3976,
      "moved_too_quickly": 20,
      "moved_wrongly": 0,
      "bots_joined": 10,
      "bots_failed": [],
      "tick_queries": 58
    },
    {
      "server": "horizon",
      "bots": 25,
      "behaviour": "mixed",
      "start_seconds": 9.61,
      "mspt": {
        "average": 11.72,
        "p50": 9.88,
        "p95": 24.45,
        "p99": 43.79
      },
      "mspt_worst_p99": 129.8,
      "tps": 20.0,
      "rss_mb": {
        "mean": 947.35,
        "max": 1086.1
      },
      "cpu_percent": 57.83,
      "chunks_per_second": 158.57,
      "unique_per_second": 5.78,
      "forgotten_per_second": 158.45,
      "waited_ticks_per_second": 0.0,
      "chunks_total": 108126,
      "chunks_per_bot": {
        "walk": 6628.53,
        "explore": 1266.6,
        "idle": 473.0
      },
      "unique_chunks_per_bot": {
        "walk": 704.67,
        "explore": 1189.2,
        "idle": 473.0
      },
      "resent": 0,
      "pulled_back": 3496,
      "moved_too_quickly": 0,
      "moved_wrongly": 0,
      "bots_joined": 25,
      "bots_failed": [],
      "tick_queries": 58
    },
    {
      "server": "vanilla",
      "bots": 25,
      "behaviour": "mixed",
      "start_seconds": 37.78,
      "mspt": {
        "average": 50.45,
        "p50": 46.39,
        "p95": 74.09,
        "p99": 191.21
      },
      "mspt_worst_p99": 1388.1,
      "tps": 19.82,
      "rss_mb": {
        "mean": 3866.18,
        "max": 4745.0
      },
      "cpu_percent": 192.42,
      "chunks_per_second": 157.63,
      "unique_per_second": 8.25,
      "forgotten_per_second": 156.12,
      "waited_ticks_per_second": 0.0,
      "chunks_total": 88763,
      "chunks_per_bot": {
        "walk": 5387.0,
        "explore": 1118.6,
        "idle": 473.0
      },
      "unique_chunks_per_bot": {
        "walk": 699.0,
        "explore": 1075.0,
        "idle": 473.0
      },
      "resent": 2,
      "pulled_back": 3629,
      "moved_too_quickly": 296,
      "moved_wrongly": 0,
      "bots_joined": 25,
      "bots_failed": [],
      "tick_queries": 58
    },
    {
      "server": "horizon",
      "bots": 50,
      "behaviour": "mixed",
      "start_seconds": 14.93,
      "mspt": {
        "average": 23.82,
        "p50": 20.11,
        "p95": 50.98,
        "p99": 74.64
      },
      "mspt_worst_p99": 195.9,
      "tps": 20.0,
      "rss_mb": {
        "mean": 1031.41,
        "max": 1201.2
      },
      "cpu_percent": 98.21,
      "chunks_per_second": 302.81,
      "unique_per_second": 10.96,
      "forgotten_per_second": 303.47,
      "waited_ticks_per_second": 0.0,
      "chunks_total": 212181,
      "chunks_per_bot": {
        "walk": 6496.53,
        "explore": 1255.5,
        "idle": 473.0
      },
      "unique_chunks_per_bot": {
        "walk": 701.9,
        "explore": 1184.7,
        "idle": 473.0
      },
      "resent": 0,
      "pulled_back": 7565,
      "moved_too_quickly": 0,
      "moved_wrongly": 0,
      "bots_joined": 50,
      "bots_failed": [],
      "tick_queries": 58
    },
    {
      "server": "vanilla",
      "bots": 50,
      "behaviour": "mixed",
      "start_seconds": 11.16,
      "error": "stopped by its watchdog 30 s after the last bot joined: \"A single server tick took 60.01 seconds (should be max 0.05)\" (Player.tick)"
    }
  ],
  "work": [
    {
      "behaviour": "mixed",
      "bots": 1,
      "servers": {
        "horizon": {
          "chunks_per_second": {
            "value": 9.94,
            "share": 0.996
          },
          "unique_per_second": {
            "value": 0.01,
            "share": 1.0
          },
          "waited_ticks_per_second": 0.0
        },
        "vanilla": {
          "chunks_per_second": {
            "value": 9.98,
            "share": 1.0
          },
          "unique_per_second": {
            "value": 0.01,
            "share": 1.0
          },
          "waited_ticks_per_second": 0.0
        }
      },
      "equal": true
    },
    {
      "behaviour": "mixed",
      "bots": 10,
      "servers": {
        "horizon": {
          "chunks_per_second": {
            "value": 61.35,
            "share": 0.995
          },
          "unique_per_second": {
            "value": 1.79,
            "share": 0.927
          },
          "waited_ticks_per_second": 0.0
        },
        "vanilla": {
          "chunks_per_second": {
            "value": 61.66,
            "share": 1.0
          },
          "unique_per_second": {
            "value": 1.93,
            "share": 1.0
          },
          "waited_ticks_per_second": 0.0
        }
      },
      "equal": true
    },
    {
      "behaviour": "mixed",
      "bots": 25,
      "servers": {
        "horizon": {
          "chunks_per_second": {
            "value": 158.57,
            "share": 1.0
          },
          "unique_per_second": {
            "value": 5.78,
            "share": 0.701
          },
          "waited_ticks_per_second": 0.0
        },
        "vanilla": {
          "chunks_per_second": {
            "value": 157.63,
            "share": 0.994
          },
          "unique_per_second": {
            "value": 8.25,
            "share": 1.0
          },
          "waited_ticks_per_second": 0.0
        }
      },
      "equal": false
    }
  ]
}