It's just too Slow: Testing Mobile application performance
summary
Claims concrete diagnostics and fixes: Charles proxy and WebPageTest expose a 267 KB JSON that gzip compresses to 42 KB, missing compression and caching causing repeated downloads; resizing images cuts a 14 s 3G download to 3 s and a 2.3 MB photo to 78 KB on cheap Android Go phones (~60 euros); animated GIFs take ~22 s versus 4 s as muted video; a Video Optimizer prototype and services like Cloudinary plus ImageMagick and lazy loading consistently trim payloads and latency.
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chapters (15)
- 0:00Start
- 3:19Fast is a Human Perception
- 6:29Charles Proxy
- 6:44Video Optimizer
- 13:33Rules for Speed
- 19:33Image Processing (correctly sized)
- 22:24WebP Support
- 24:07Scalable Vector Graphics (SVG)
- 25:32Caching
- 27:02Lazy Loading: Experiments
- 28:48Animated GIFS
- 31:36Addendum: Lite Mode: Save-Data
- 32:06Addendum: Save-Data
- 32:57Addendum 2: Network Info
- 34:28Summary Tooling
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