{
  "schema_version": 1,
  "context": {
    "repository": "aliilyas/bruster",
    "sha": "5dcb6010a222a61bb98a54b0f96a2cefa8d2fd0a",
    "run_id": 40594030043,
    "run_number": 1,
    "run_attempt": 1,
    "run_url": "https://github.com/aliilyas/bruster/actions/runs/40594030043"
  },
  "metadata": {
    "started_utc": "2026-10-27T22:22:43.211979+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": "INTEL(R) XEON(R) PLATINUM 8573C",
    "mem_total_kib": 16366508,
    "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": 1450112,
    "bruster_sha256": "9e9a5c112cf329ad9c0e8889525f89d560cffa02024744caed5cc18ca136ba21",
    "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": "2026-10-27T22:31:45.292448+00:00"
  },
  "summary": {
    "bruster": {
      "startup_ms": {
        "n": 10,
        "median": 30148.104004,
        "min": 25402.650417,
        "max": 31930.112635
      },
      "first_navigation_ms": {
        "n": 10,
        "median": 566.526626,
        "min": 151.467555,
        "max": 568.163087
      },
      "launch_to_first_page_ms": {
        "n": 10,
        "median": 30714.0644555,
        "min": 25971.011696,
        "max": 32081.879737
      },
      "tiny_navigation_ms": {
        "n": 100,
        "median": 7.225371,
        "min": 3.461693,
        "max": 9.227779
      },
      "tiny_extract_ms": {
        "n": 100,
        "median": 0.8915525,
        "min": 0.608405,
        "max": 4.951464
      },
      "large_navigation_ms": {
        "n": 50,
        "median": 25.247467,
        "min": 22.410076,
        "max": 31.796163
      },
      "large_extract_ms": {
        "n": 50,
        "median": 17.0638395,
        "min": 11.186372,
        "max": 24.602032
      },
      "large_extract_json_ms": {
        "n": 50,
        "median": 16.0893185,
        "min": 7.331785,
        "max": 24.370279
      },
      "image_navigation_ms": {
        "n": 30,
        "median": 114.9356645,
        "min": 111.683391,
        "max": 121.424362
      },
      "screenshot_ms": {
        "n": 20,
        "median": 28.8152745,
        "min": 25.963415,
        "max": 37.057388
      },
      "rss_mib": {
        "n": 10,
        "median": 372.21875,
        "min": 368.51953125,
        "max": 372.9296875
      },
      "pss_mib": {
        "n": 10,
        "median": 210.6767578125,
        "min": 206.8427734375,
        "max": 211.6025390625
      },
      "display_pss_mib": {
        "n": 10,
        "median": 40.48046875,
        "min": 36.1630859375,
        "max": 40.921875
      },
      "total_pss_mib": {
        "n": 10,
        "median": 248.837890625,
        "min": 243.7080078125,
        "max": 252.44921875
      },
      "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": 460.313853,
        "min": 445.798287,
        "max": 481.447438
      },
      "first_navigation_ms": {
        "n": 10,
        "median": 16.588293,
        "min": 14.860606,
        "max": 20.073227
      },
      "launch_to_first_page_ms": {
        "n": 10,
        "median": 476.483515,
        "min": 461.592774,
        "max": 502.891002
      },
      "tiny_navigation_ms": {
        "n": 100,
        "median": 9.560907,
        "min": 7.398207,
        "max": 14.640813
      },
      "tiny_extract_ms": {
        "n": 100,
        "median": 2.994687,
        "min": 2.058367,
        "max": 7.058826
      },
      "large_navigation_ms": {
        "n": 50,
        "median": 29.619098,
        "min": 19.69501,
        "max": 41.269538
      },
      "large_extract_ms": {
        "n": 50,
        "median": 91.83986,
        "min": 66.47492,
        "max": 129.924798
      },
      "large_extract_json_ms": {
        "n": 50,
        "median": 8.391196,
        "min": 6.778306,
        "max": 28.727478
      },
      "image_navigation_ms": {
        "n": 30,
        "median": 118.3985365,
        "min": 116.364453,
        "max": 130.422989
      },
      "screenshot_ms": {
        "n": 20,
        "median": 39.630181,
        "min": 27.399873,
        "max": 50.12743
      },
      "rss_mib": {
        "n": 10,
        "median": 598.244140625,
        "min": 595.43359375,
        "max": 599.82421875
      },
      "pss_mib": {
        "n": 10,
        "median": 324.73974609375,
        "min": 323.939453125,
        "max": 326.6298828125
      },
      "display_pss_mib": {
        "n": 10,
        "median": 0.0,
        "min": 0.0,
        "max": 0.0
      },
      "total_pss_mib": {
        "n": 10,
        "median": 324.73974609375,
        "min": 323.939453125,
        "max": 326.6298828125
      },
      "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://127.0.0.1:42517/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:42517/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://127.0.0.1:42517/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:42517/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://127.0.0.1:42517/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:42517/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://127.0.0.1:42517/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:42517/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://127.0.0.1:42517/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:42517/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://127.0.0.1:42517/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:42517/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://127.0.0.1:42517/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:42517/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://127.0.0.1:42517/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:42517/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://127.0.0.1:42517/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:42517/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://127.0.0.1:42517/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:42517/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": 623.585247,
        "min": 591.797998,
        "max": 1374.969845
      },
      "first_navigation_ms": {
        "n": 10,
        "median": 38.5036015,
        "min": 29.508656,
        "max": 48.0592
      },
      "launch_to_first_page_ms": {
        "n": 10,
        "median": 662.5534095,
        "min": 621.944362,
        "max": 1413.543148
      },
      "tiny_navigation_ms": {
        "n": 100,
        "median": 17.36053,
        "min": 10.454413,
        "max": 33.898273
      },
      "tiny_extract_ms": {
        "n": 100,
        "median": 6.983416,
        "min": 2.871424,
        "max": 20.052487
      },
      "large_navigation_ms": {
        "n": 50,
        "median": 36.613254,
        "min": 25.954456,
        "max": 52.345882
      },
      "large_extract_ms": {
        "n": 50,
        "median": 92.1774565,
        "min": 69.140428,
        "max": 135.706061
      },
      "large_extract_json_ms": {
        "n": 50,
        "median": 8.442301,
        "min": 6.703461,
        "max": 32.176357
      },
      "image_navigation_ms": {
        "n": 30,
        "median": 122.45518200000001,
        "min": 119.462308,
        "max": 135.416643
      },
      "screenshot_ms": {
        "n": 20,
        "median": 44.005879,
        "min": 29.913072,
        "max": 62.458087
      },
      "rss_mib": {
        "n": 10,
        "median": 1173.84765625,
        "min": 1167.0078125,
        "max": 1176.11328125
      },
      "pss_mib": {
        "n": 10,
        "median": 506.49462890625,
        "min": 504.837890625,
        "max": 509.1142578125
      },
      "display_pss_mib": {
        "n": 10,
        "median": 0.0,
        "min": 0.0,
        "max": 0.0
      },
      "total_pss_mib": {
        "n": 10,
        "median": 506.49462890625,
        "min": 504.837890625,
        "max": 509.1142578125
      },
      "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://127.0.0.1:42517/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:42517/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://127.0.0.1:42517/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:42517/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://127.0.0.1:42517/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:42517/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://127.0.0.1:42517/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:42517/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://127.0.0.1:42517/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:42517/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://127.0.0.1:42517/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:42517/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://127.0.0.1:42517/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:42517/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://127.0.0.1:42517/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:42517/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://127.0.0.1:42517/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:42517/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://127.0.0.1:42517/tiny?recovery=1\" is interrupted by another navigation to \"chrome-error://chromewebdata/\"\nCall log:\n  - navigating to \"http://127.0.0.1:42517/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": 475.46104849999995,
        "min": 444.672858,
        "max": 485.929848
      },
      "first_navigation_ms": {
        "n": 10,
        "median": 29.686115,
        "min": 26.028703,
        "max": 34.372785
      },
      "launch_to_first_page_ms": {
        "n": 10,
        "median": 506.258423,
        "min": 474.91336,
        "max": 513.687996
      },
      "tiny_navigation_ms": {
        "n": 100,
        "median": 18.020044,
        "min": 13.22045,
        "max": 26.188435
      },
      "tiny_extract_ms": {
        "n": 100,
        "median": 5.348002,
        "min": 1.433535,
        "max": 11.398207
      },
      "large_navigation_ms": {
        "n": 50,
        "median": 36.11915,
        "min": 32.147561,
        "max": 40.920235
      },
      "large_extract_ms": {
        "n": 50,
        "median": 23.7700085,
        "min": 13.717052,
        "max": 46.137493
      },
      "large_extract_json_ms": {
        "n": 50,
        "median": 17.653309,
        "min": 6.330785,
        "max": 35.244494
      },
      "image_navigation_ms": {
        "n": 30,
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    "units": "uncompressed logical bytes, deduplicated by device/inode",
    "scope": "tool runtime, selected browser bundle, linked libraries, observed mapped files; Bruster includes WebKit helpers and Xvfb; Node included where required",
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