~/talk

Using Benchmarks for Tracking Regressions and Improving UI performance

Talkat droidcon London 2019 · 2019-10-24..10-25· [web-performance, android]
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Benchmarks measure create/bind/layout times for Litho/views, run hourly on a device farm and emit JSON for CI; a monitored header goes from 10 → 14 ms (40% regression), the system runs an automated bisect finds offending commit and assigns a regression task to the commit author. Tests run many iterations and trials on real devices, CPU locked and disk mounted to RAM with local network proxy to reduce noise; results are directional, used for triage and to trigger reverts or optimizations.

AI-written summary · about

  1. 0:00Introduction and motivation
  2. 4:12Why UI performance matters
  3. 10:20Automating performance tracking
  4. 14:41Writing benchmark tests
  5. 23:30Using benchmarks at Facebook
  6. 29:36Making benchmarks reliable
  7. 36:24Real-world benchmark insights
  8. 40:12Q&A session
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