{
  "schema_version": 1,
  "context": {
    "repository": "aliilyas/bruster",
    "sha": "1d60e7188f0ab0e21219a8e75c76fccfefdc9052",
    "run_id": 40595366190,
    "run_number": 4,
    "run_attempt": 1,
    "run_url": "https://github.com/aliilyas/bruster/actions/runs/40595366190"
  },
  "metadata": {
    "started_utc": "2026-10-27T22:32:51.970062+00:00",
    "platform": "Linux-7.0.0-1017-azure-x86_64-with-glibc2.39",
    "os": {
      "NAME": "Ubuntu",
      "ID": "ubuntu",
      "PRETTY_NAME": "Ubuntu 24.04.5 LTS",
      "VERSION_ID": "24.04",
      "VERSION": "24.04.5 LTS (Noble Numbat)",
      "VERSION_CODENAME": "noble",
      "ID_LIKE": "debian",
      "HOME_URL": "https://www.ubuntu.com/",
      "SUPPORT_URL": "https://help.ubuntu.com/",
      "BUG_REPORT_URL": "https://bugs.launchpad.net/ubuntu/",
      "PRIVACY_POLICY_URL": "https://www.ubuntu.com/legal/terms-and-policies/privacy-policy",
      "UBUNTU_CODENAME": "noble",
      "LOGO": "ubuntu-logo"
    },
    "node": "v26.12.1",
    "chrome": "Google Chrome for Testing 156.0.8078.4",
    "headless_shell": "Google Chrome for Testing 156.0.8078.4",
    "cpu_count": 4,
    "cpu_model": "AMD EPYC 9V74 80-Core Processor",
    "mem_total_kib": 16367524,
    "runner_image": {
      "ImageOS": "ubuntu24",
      "ImageVersion": "20261026.354.1",
      "RUNNER_ARCH": "X64"
    },
    "rustc": "rustc 1.99.1 (58cf8f9c3 2026-10-13)",
    "webkitgtk": "2.52.6",
    "packages": {
      "playwright-core": "1.64.1",
      "puppeteer-core": "25.16.0",
      "agent-browser": "0.40.0"
    },
    "bruster_bytes": 1455632,
    "bruster_sha256": "48adb34cc3956a14fb05c4b614387dbc8fd90b623b22c3bc0f299a6ae234dc3b",
    "chrome_sha256": "377a9fc07b495c3b8d0ab8ec1fdfd153641759f9756fea34d8dfce4de82f5025",
    "headless_shell_sha256": "4fa61f0ba0b4f89b7bec242c32ca16d3bccf69dbfef0651924a9ba8fede5f9d6",
    "rounds": 10,
    "iterations": 10,
    "common_extraction_js": "(() => ({\n  title: document.title,\n  elements: Array.from(document.querySelectorAll('h1,h2,h3,p,li,a,input,button,select,textarea'))\n    .filter(e => { const r = e.getBoundingClientRect(); return r.width > 0 && r.height > 0; })\n    .map(e => ({tag: e.tagName.toLowerCase(),\n      name: (e.getAttribute('aria-label') || e.getAttribute('placeholder') || e.textContent || '').trim(),\n      href: e.getAttribute('href'), value: 'value' in e ? e.value : null}))\n}))()",
    "harness_sha256": {
      "bench_compare.py": "f1476d7cf9f694d55356c6212549680f001471b55c5f91df36447465fc82bedb",
      "bench_competitor_driver.mjs": "c9bb792d8d3a1a60f1b0f5fe6a1775e865ca715858f3b2da13ba2162f75077fe",
      "bench_audit.py": "df91d7a203077227c82fc6730033498ea20badaf519c6dd8f6bf10b1c6ae006c"
    },
    "package_lock_sha256": "210628238686d22733351fad6e50abaee12565f3664605aa8ac740ad9931716e",
    "args": {
      "bruster": "/home/runner/work/bruster/bruster/target/release/bruster",
      "node": "/opt/hostedtoolcache/node/26.12.1/x64/bin/node",
      "chrome": "/home/runner/work/_temp/benchmark-browsers/chromium-1248/chrome-linux64/chrome",
      "shell": "/home/runner/work/_temp/benchmark-browsers/chromium_headless_shell-1248/chrome-headless-shell-linux64/chrome-headless-shell",
      "deps": "/home/runner/work/_temp/benchmark-deps",
      "output": "/home/runner/work/_temp/benchmark-results",
      "rounds": 10,
      "iterations": 10,
      "tools": [
        "bruster",
        "playwright",
        "puppeteer",
        "agent-browser",
        "playwright-shell"
      ]
    },
    "finished_utc": "2026-10-27T22:41:51.009959+00:00"
  },
  "summary": {
    "bruster": {
      "startup_ms": {
        "n": 10,
        "median": 30144.776715,
        "min": 26105.051019,
        "max": 30310.630281
      },
      "first_navigation_ms": {
        "n": 10,
        "median": 564.1264590000001,
        "min": 82.665334,
        "max": 569.104401
      },
      "launch_to_first_page_ms": {
        "n": 10,
        "median": 30707.817608999998,
        "min": 26669.144643,
        "max": 30718.010916
      },
      "tiny_navigation_ms": {
        "n": 100,
        "median": 7.2670165,
        "min": 2.917639,
        "max": 8.3724
      },
      "tiny_extract_ms": {
        "n": 100,
        "median": 0.824174,
        "min": 0.584422,
        "max": 5.156667
      },
      "large_navigation_ms": {
        "n": 50,
        "median": 24.5467855,
        "min": 24.102381,
        "max": 25.31624
      },
      "large_extract_ms": {
        "n": 50,
        "median": 15.071396499999999,
        "min": 10.892447,
        "max": 24.15483
      },
      "large_extract_json_ms": {
        "n": 50,
        "median": 15.179616,
        "min": 8.021841,
        "max": 23.864568
      },
      "image_navigation_ms": {
        "n": 30,
        "median": 114.229357,
        "min": 109.61759,
        "max": 116.788748
      },
      "screenshot_ms": {
        "n": 20,
        "median": 29.0009805,
        "min": 28.113351,
        "max": 29.893565
      },
      "rss_mib": {
        "n": 10,
        "median": 371.88671875,
        "min": 368.3359375,
        "max": 372.66015625
      },
      "pss_mib": {
        "n": 10,
        "median": 210.50341796875,
        "min": 207.41015625,
        "max": 212.375
      },
      "display_pss_mib": {
        "n": 10,
        "median": 40.30224609375,
        "min": 36.263671875,
        "max": 40.3125
      },
      "total_pss_mib": {
        "n": 10,
        "median": 250.7919921875,
        "min": 245.619140625,
        "max": 252.68359375
      },
      "process_count": {
        "n": 10,
        "median": 3.0,
        "min": 3,
        "max": 3
      },
      "sessions_with_failures": 0,
      "fault_probe_failures": {},
      "recovery_retry_passes": 0,
      "failures": []
    },
    "playwright-shell": {
      "startup_ms": {
        "n": 10,
        "median": 434.99675,
        "min": 431.014793,
        "max": 472.1785
      },
      "first_navigation_ms": {
        "n": 10,
        "median": 15.389943500000001,
        "min": 12.447426,
        "max": 18.506692
      },
      "launch_to_first_page_ms": {
        "n": 10,
        "median": 451.262141,
        "min": 446.199943,
        "max": 491.910034
      },
      "tiny_navigation_ms": {
        "n": 100,
        "median": 8.648396,
        "min": 6.606033,
        "max": 15.851676
      },
      "tiny_extract_ms": {
        "n": 100,
        "median": 2.659534,
        "min": 1.867376,
        "max": 5.904766
      },
      "large_navigation_ms": {
        "n": 50,
        "median": 27.671644,
        "min": 18.308283,
        "max": 42.206768
      },
      "large_extract_ms": {
        "n": 50,
        "median": 80.0949265,
        "min": 59.617655,
        "max": 119.537956
      },
      "large_extract_json_ms": {
        "n": 50,
        "median": 8.41381,
        "min": 7.100674,
        "max": 27.393539
      },
      "image_navigation_ms": {
        "n": 30,
        "median": 114.597455,
        "min": 113.264006,
        "max": 127.002727
      },
      "screenshot_ms": {
        "n": 20,
        "median": 31.4895415,
        "min": 28.706651,
        "max": 52.125782
      },
      "rss_mib": {
        "n": 10,
        "median": 597.259765625,
        "min": 595.5,
        "max": 600.2421875
      },
      "pss_mib": {
        "n": 10,
        "median": 324.6953125,
        "min": 322.8828125,
        "max": 326.20703125
      },
      "display_pss_mib": {
        "n": 10,
        "median": 0.0,
        "min": 0.0,
        "max": 0.0
      },
      "total_pss_mib": {
        "n": 10,
        "median": 324.6953125,
        "min": 322.8828125,
        "max": 326.20703125
      },
      "process_count": {
        "n": 10,
        "median": 7.0,
        "min": 7,
        "max": 7
      },
      "sessions_with_failures": 10,
      "fault_probe_failures": {
        "recovery_after_navigation_error": 10
      },
      "recovery_retry_passes": 10,
      "failures": [
        {
          "round": 1,
          "name": "recovery_after_navigation_error",
          "pass": false,
          "error": "navigate: page.goto: Navigation to \"http://127.0.0.1:45255/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:45255/tiny?recovery=1\", waiting until \"load\"\n\n    at /home/runner/work/bruster/bruster/scripts/bench_competitor_driver.mjs:40:37"
        },
        {
          "round": 2,
          "name": "recovery_after_navigation_error",
          "pass": false,
          "error": "navigate: page.goto: Navigation to \"http://127.0.0.1:45255/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:45255/tiny?recovery=1\", waiting until \"load\"\n\n    at /home/runner/work/bruster/bruster/scripts/bench_competitor_driver.mjs:40:37"
        },
        {
          "round": 3,
          "name": "recovery_after_navigation_error",
          "pass": false,
          "error": "navigate: page.goto: Navigation to \"http://127.0.0.1:45255/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:45255/tiny?recovery=1\", waiting until \"load\"\n\n    at /home/runner/work/bruster/bruster/scripts/bench_competitor_driver.mjs:40:37"
        },
        {
          "round": 4,
          "name": "recovery_after_navigation_error",
          "pass": false,
          "error": "navigate: page.goto: Navigation to \"http://127.0.0.1:45255/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:45255/tiny?recovery=1\", waiting until \"load\"\n\n    at /home/runner/work/bruster/bruster/scripts/bench_competitor_driver.mjs:40:37"
        },
        {
          "round": 5,
          "name": "recovery_after_navigation_error",
          "pass": false,
          "error": "navigate: page.goto: Navigation to \"http://127.0.0.1:45255/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:45255/tiny?recovery=1\", waiting until \"load\"\n\n    at /home/runner/work/bruster/bruster/scripts/bench_competitor_driver.mjs:40:37"
        },
        {
          "round": 6,
          "name": "recovery_after_navigation_error",
          "pass": false,
          "error": "navigate: page.goto: Navigation to \"http://127.0.0.1:45255/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:45255/tiny?recovery=1\", waiting until \"load\"\n\n    at /home/runner/work/bruster/bruster/scripts/bench_competitor_driver.mjs:40:37"
        },
        {
          "round": 7,
          "name": "recovery_after_navigation_error",
          "pass": false,
          "error": "navigate: page.goto: Navigation to \"http://127.0.0.1:45255/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:45255/tiny?recovery=1\", waiting until \"load\"\n\n    at /home/runner/work/bruster/bruster/scripts/bench_competitor_driver.mjs:40:37"
        },
        {
          "round": 8,
          "name": "recovery_after_navigation_error",
          "pass": false,
          "error": "navigate: page.goto: Navigation to \"http://127.0.0.1:45255/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:45255/tiny?recovery=1\", waiting until \"load\"\n\n    at /home/runner/work/bruster/bruster/scripts/bench_competitor_driver.mjs:40:37"
        },
        {
          "round": 9,
          "name": "recovery_after_navigation_error",
          "pass": false,
          "error": "navigate: page.goto: Navigation to \"http://127.0.0.1:45255/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:45255/tiny?recovery=1\", waiting until \"load\"\n\n    at /home/runner/work/bruster/bruster/scripts/bench_competitor_driver.mjs:40:37"
        },
        {
          "round": 10,
          "name": "recovery_after_navigation_error",
          "pass": false,
          "error": "navigate: page.goto: Navigation to \"http://127.0.0.1:45255/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:45255/tiny?recovery=1\", waiting until \"load\"\n\n    at /home/runner/work/bruster/bruster/scripts/bench_competitor_driver.mjs:40:37"
        }
      ]
    },
    "playwright": {
      "startup_ms": {
        "n": 10,
        "median": 581.2426505,
        "min": 543.011956,
        "max": 728.681764
      },
      "first_navigation_ms": {
        "n": 10,
        "median": 37.5430915,
        "min": 26.080875,
        "max": 239.230405
      },
      "launch_to_first_page_ms": {
        "n": 10,
        "median": 628.6696895,
        "min": 607.140108,
        "max": 782.499451
      },
      "tiny_navigation_ms": {
        "n": 100,
        "median": 14.4013355,
        "min": 10.371031,
        "max": 34.314665
      },
      "tiny_extract_ms": {
        "n": 100,
        "median": 6.172615,
        "min": 2.64008,
        "max": 32.960923
      },
      "large_navigation_ms": {
        "n": 50,
        "median": 33.418009,
        "min": 22.520363,
        "max": 52.518208
      },
      "large_extract_ms": {
        "n": 50,
        "median": 83.9771915,
        "min": 61.011644,
        "max": 122.312152
      },
      "large_extract_json_ms": {
        "n": 50,
        "median": 12.718996,
        "min": 7.060194,
        "max": 30.823369
      },
      "image_navigation_ms": {
        "n": 30,
        "median": 118.1708615,
        "min": 116.055512,
        "max": 130.988014
      },
      "screenshot_ms": {
        "n": 20,
        "median": 40.2904085,
        "min": 30.459278,
        "max": 57.87899
      },
      "rss_mib": {
        "n": 10,
        "median": 1173.990234375,
        "min": 1166.8671875,
        "max": 1178.10546875
      },
      "pss_mib": {
        "n": 10,
        "median": 507.6064453125,
        "min": 506.0810546875,
        "max": 509.2138671875
      },
      "display_pss_mib": {
        "n": 10,
        "median": 0.0,
        "min": 0.0,
        "max": 0.0
      },
      "total_pss_mib": {
        "n": 10,
        "median": 507.6064453125,
        "min": 506.0810546875,
        "max": 509.2138671875
      },
      "process_count": {
        "n": 10,
        "median": 12.0,
        "min": 12,
        "max": 12
      },
      "sessions_with_failures": 10,
      "fault_probe_failures": {
        "recovery_after_navigation_error": 10
      },
      "recovery_retry_passes": 10,
      "failures": [
        {
          "round": 1,
          "name": "recovery_after_navigation_error",
          "pass": false,
          "error": "navigate: page.goto: Navigation to \"http://127.0.0.1:45255/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:45255/tiny?recovery=1\", waiting until \"load\"\n\n    at /home/runner/work/bruster/bruster/scripts/bench_competitor_driver.mjs:40:37"
        },
        {
          "round": 2,
          "name": "recovery_after_navigation_error",
          "pass": false,
          "error": "navigate: page.goto: Navigation to \"http://127.0.0.1:45255/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:45255/tiny?recovery=1\", waiting until \"load\"\n\n    at /home/runner/work/bruster/bruster/scripts/bench_competitor_driver.mjs:40:37"
        },
        {
          "round": 3,
          "name": "recovery_after_navigation_error",
          "pass": false,
          "error": "navigate: page.goto: Navigation to \"http://127.0.0.1:45255/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:45255/tiny?recovery=1\", waiting until \"load\"\n\n    at /home/runner/work/bruster/bruster/scripts/bench_competitor_driver.mjs:40:37"
        },
        {
          "round": 4,
          "name": "recovery_after_navigation_error",
          "pass": false,
          "error": "navigate: page.goto: Navigation to \"http://127.0.0.1:45255/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:45255/tiny?recovery=1\", waiting until \"load\"\n\n    at /home/runner/work/bruster/bruster/scripts/bench_competitor_driver.mjs:40:37"
        },
        {
          "round": 5,
          "name": "recovery_after_navigation_error",
          "pass": false,
          "error": "navigate: page.goto: Navigation to \"http://127.0.0.1:45255/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:45255/tiny?recovery=1\", waiting until \"load\"\n\n    at /home/runner/work/bruster/bruster/scripts/bench_competitor_driver.mjs:40:37"
        },
        {
          "round": 6,
          "name": "recovery_after_navigation_error",
          "pass": false,
          "error": "navigate: page.goto: Navigation to \"http://127.0.0.1:45255/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:45255/tiny?recovery=1\", waiting until \"load\"\n\n    at /home/runner/work/bruster/bruster/scripts/bench_competitor_driver.mjs:40:37"
        },
        {
          "round": 7,
          "name": "recovery_after_navigation_error",
          "pass": false,
          "error": "navigate: page.goto: Navigation to \"http://127.0.0.1:45255/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:45255/tiny?recovery=1\", waiting until \"load\"\n\n    at /home/runner/work/bruster/bruster/scripts/bench_competitor_driver.mjs:40:37"
        },
        {
          "round": 8,
          "name": "recovery_after_navigation_error",
          "pass": false,
          "error": "navigate: page.goto: Navigation to \"http://127.0.0.1:45255/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:45255/tiny?recovery=1\", waiting until \"load\"\n\n    at /home/runner/work/bruster/bruster/scripts/bench_competitor_driver.mjs:40:37"
        },
        {
          "round": 9,
          "name": "recovery_after_navigation_error",
          "pass": false,
          "error": "navigate: page.goto: Navigation to \"http://127.0.0.1:45255/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:45255/tiny?recovery=1\", waiting until \"load\"\n\n    at /home/runner/work/bruster/bruster/scripts/bench_competitor_driver.mjs:40:37"
        },
        {
          "round": 10,
          "name": "recovery_after_navigation_error",
          "pass": false,
          "error": "navigate: page.goto: Navigation to \"http://127.0.0.1:45255/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:45255/tiny?recovery=1\", waiting until \"load\"\n\n    at /home/runner/work/bruster/bruster/scripts/bench_competitor_driver.mjs:40:37"
        }
      ]
    },
    "puppeteer": {
      "startup_ms": {
        "n": 10,
        "median": 445.411295,
        "min": 426.045922,
        "max": 486.205793
      },
      "first_navigation_ms": {
        "n": 10,
        "median": 26.690945,
        "min": 23.168702,
        "max": 154.504663
      },
      "launch_to_first_page_ms": {
        "n": 10,
        "median": 473.309505,
        "min": 464.356584,
        "max": 598.767231
      },
      "tiny_navigation_ms": {
        "n": 100,
        "median": 16.002999,
        "min": 13.032322,
        "max": 28.461065
      },
      "tiny_extract_ms": {
        "n": 100,
        "median": 2.3245355,
        "min": 1.003214,
        "max": 8.313818
      },
      "large_navigation_ms": {
        "n": 50,
        "median": 32.551056,
        "min": 28.269994,
        "max": 34.599024
      },
      "large_extract_ms": {
        "n": 50,
        "median": 23.737762500000002,
        "min": 14.429885,
        "max": 42.56343
      },
      "large_extract_json_ms": {
        "n": 50,
        "median": 17.454866,
        "min": 6.749917,
        "max": 33.432627
      },
      "image_navigation_ms": {
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    "units": "uncompressed logical bytes, deduplicated by device/inode",
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