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metric: Thread availability #28

paulirish opened this issue Mar 18, 2016 · 0 comments


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commented Mar 18, 2016

Capturing how available the main thread is. This is a proxy metric to for potential input latency, as we cannot predict when input will hit the browser.

Update: See details at Timestamp: Main thread ready for interaction in #27


S-curve handled by Ben's math. Basic expectations:

  • Goal: 90% percentile main thread task duration ~ under 300ms
  • Goal: Maximum main thread task duration is < 400ms
  • 100/100 is 90% percentile figure is <12ms
  • 0/100 is 90% percentile figure is <1000ms.
  • TBD: Determine curve.
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