Fennec/NativeUI/checkerboarding

Intro

• Where are we bad right now?/What are the biggest problems? (Erin can lead this?)
• What criteria do we have for being good enough?

Checkerboarding

1. Zoom in (dbl tap, pinch 2 zoom)
2. Zoom out (dbl tap, pinch 2 zoom)
3. Scrolling
4. Panning

Breakdown

• Zoomed in panning on CNN.com: http://bit.ly/HdccVU
• Zoomed in panning on nytimes.com: http://bit.ly/HdceNy
• Zoom out on nytimes.com: http://bit.ly/HjC3eD (409ms paint) http://bit.ly/HIMqas (371ms paint)
  • mostly drawing text. We run into bug 742134

1. Painting
2. Upload/Syncing with compositing thread
3. Layout
4. Other (bug 742060, bug 742128)

Areas of improvement

1. gfx
2. layout
3. java

Areas of regression

1. gfx
2. layout
3. java

Areas of continued risk

1. gfx
2. layout
3. java

Pan/Zoom Jank

1. page load?
2. Zoom in (dbl tap, pinch 2 zoom)
3. Zoom out (dbl tap, pinch 2 zoom)
4. Scrolling
5. Panning

Areas of improvement

1. gfx
2. layout
3. java

Areas of regression

1. gfx
2. layout
3. java

Areas of continued risk

1. gfx
2. layout
3. java