{
  "complete": true,
  "preliminary": true,
  "displayDate": "October 16, 2026",
  "downloadPath": "/benchmarks/notch-background-cpu-2026-10-16.json",
  "medianPairedReductionPercent": 96.35419426633459,
  "machine": {
    "cpu": "Apple M4 Pro",
    "macOS": "26.0"
  },
  "notch": {
    "version": "1.0",
    "configuration": "Debug"
  },
  "chrome": {
    "version": "155.0.8059.84"
  },
  "protocol": {
    "sites": [
      "https://www.apple.com/",
      "https://en.wikipedia.org/wiki/Web_browser",
      "https://developer.mozilla.org/en-US/docs/Web/JavaScript",
      "https://news.ycombinator.com/",
      "https://docs.python.org/3/tutorial/"
    ],
    "trials": 3,
    "settleSeconds": 20,
    "backgroundSeconds": 60,
    "viewport": {
      "width": 1024,
      "height": 720
    },
    "description": "Five matching hidden, idle tabs. One browser at a time holds the test pages. Chrome uses a fresh isolated profile; Notch uses its existing profile. Personal Chrome processes are excluded from browser CPU totals. CPU percentages are relative to one core. Both browser hosts and other applications remain running."
  },
  "trials": [
    {
      "trial": 1,
      "notchCPUPercent": 0.2162909090909091,
      "chromeCPUPercent": 1.377017857142857,
      "reductionPercent": 84.29280288785172
    },
    {
      "trial": 2,
      "notchCPUPercent": 0.022363636363636363,
      "chromeCPUPercent": 0.6903272727272727,
      "reductionPercent": 96.76042983565108
    },
    {
      "trial": 3,
      "notchCPUPercent": 0.025018181818181818,
      "chromeCPUPercent": 0.6862181818181818,
      "reductionPercent": 96.35419426633459
    }
  ],
  "limitations": [
    "Other apps remained running and contribute to chip power.",
    "Notch Debug build and existing profile versus Chrome fresh profile.",
    "Only hidden, idle pages were measured; no active-browsing claim.",
    "Process CPU attribution uses observed process identities. Exited tasks between identity snapshots can be missed; this is exploratory, not a validated marketing CPU claim."
  ],
  "batteryRuntimeMeasured": false
}