Firefox/Content Performance Program/Observations

Windows Desktop

Reference system

• HP Pavilion 15" laptop
• Touchscreen
• CPU: i3-5010u
• GPU: (integrated): HD5500

Experiments

Windows 8 vs Windows 10 (Firefox)

• Performed by: aklotz, avih

TBD

GFX and e10s configurations (Firefox and others)

• Performed by: aklotz, avih
• Reproduced partially: vladan

TBD

Navigation from search results (between browsers)

• performed by: vladan, avih

TBD

Two monitors configurations (between browsers)

• performed by: avih

TBD

Memory usage of e10s, non e10s (Firefox and others)

• Performed by: vladan, avih

TBD

Google maps zoom in/out animation (between browsers)

• Performed by: vladan, avih

TBD

Fennec

Reference Device

• Samsung Galaxy S4
• Android Lollipop 5.0.1 (official update)
• Not rooted

Experiments

Alexa top 20 - Navigation and manual scroll (between browsers)

• Performed by: avih
• Reproduced partially: vladan
• Tested using:
  • Fennec Aurora 43 API11 2015-09-30 (chosen together with :kats)
  • Chrome
  • The device default "Internet" browser
• Procedure:
  • Visit the top 20 alexa sites
  • On each site scroll manually and observe the behavior
  • Visit some internal links and observe the navigation behavior
  • Take notes of the relative performance diffs between browsers
• Observations:
  • "Internet" and Chrome are similar, but between them Chrome is slightly better. We'll focus on Fennec vs Chrome.
  • Page load is similar between browsers
  • Bug 1217415 Page navigation is faster in Chrome on some sites (e.g. Wikipedia, ebay) but similar on other sites.
  • Bug 1217372 Fennec has text input lag in autocomplete boxes (google, bing) which Chrome doesn't.
  • In general, scroll is better in chrome, but on "light" pages Fennec gets pretty close.
  • Scroll _while_ the page is loading is more responsive in Fennec (but still not very good)
  • Bug 1217370 On fast scroll swipes, sometimes the momentum is less than expected.
  • Scroll on some pages (e.g. yahoo.com) is considerably worse in Fennec:
    • Bug 1217364 Inconsistent progression (momentum) without user inputs.
    • Bug 1217366 Visible low resolution rendering, especially for fast swipes.