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Multi-threaded Rendering on Android (with Litho & Infer)

on YouTube 37m
Talkat droidcon NYC 2017 · 2017-09-25..09-26· [frontend-architecture, testing]

speakers

name:Jingbo Yang
links:none on file
name:Benjamin Jaeger
links:none on file

resources

video:https://youtu.be/9_D54WYl6RQ
slides:none on file

summary

Facebook migrates the Android News Feed rendering off the UI thread by building a background layout pipeline with Litho and automating concurrency checks with Infer. The team converts thousands of specs, runs Infer continuously (p75 ≈ 25min) to find race reports (700+ fixed), avoids crash regressions, and reports up to a 42% improvement in smaller surfaces. Key engineering notes: precompute component trees, keep state functional or use volatile/synchronized carefully, and minimize coarse locks to prevent contention and deadlocks.

AI-written summary · about

chapters (7)

  1. 0:00Introduction to multi-threaded rendering
  2. 2:43Traditional Android UI limitations
  3. 6:39Litho framework overview
  4. 12:39Java concurrency challenges
  5. 21:33Infer static analyzer for concurrency
  6. 28:19Results and performance improvements
  7. 33:21Q&A session

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