Platform/2014-Q2-Goals

DOM

[ON TRACK] Implement Xrays to 3 out of the following: Functions (bug 976148), Objects (bug 987111), Array/Array-like (bug 987163), and Error (bug 987669).

Perf

• Improve Firefox responsiveness & startup time:
  • Finish session-store work:
    • [ON TRACK] Improve session-store startup time bug 987592
    • [ON TRACK] Store less data in the sessionstore.js file bug 943352
    • [ON TRACK] Break up janky operations into smaller chunks bug 984886
  • Start eliminating top main-thread I/O offenders reported to Telemetry bug 572459:
    • 1. [ON TRACK] User dictionary (persdict.dat) read on the main thread bug 880864
    • 2. TBD
  • [ON TRACK] New storage system for prefs bug 897049
  • [ON TRACK] The add-on compatibility dialog should not interrupt startup unless strictly necessary bug 760356
  • [ON TRACK] Investigate feasibility of starting Flash plugin instances asynchronously

• Fill gaps in test coverage (vs press benchmarks) and prevent regressions:
  • [ON TRACK] Create a Talos test for "cold" startup time bug 936617
  • [ON TRACK] Create a Talos test for time to restore a previous session bug 936630
  • [ON TRACK] Integrate our new power-profiling test into the test infrastructure bug 962715
  • [ON TRACK] Automatically detect new sources of main-thread I/O in tests bug 935482

• Partner with other teams on projects with big perf impact
  • [ON TRACK] Assist Necko team with measuring performance of new network cache
  • [ON TRACK] Create another Talos test for smoothness of scrolling
  • [ON TRACK] Make it easier to debug performance regressions by (optionally) capturing profiles during Talos tests bug 967619
  • Expand use of the T100 tablet/laptop as a reference slow device

• Study impact of extensions on Firefox performance
  • [ON TRACK] Create a Telemetry dashboard to expose add-ons' impact on Firefox startup time

• Grow community:
  • [ON TRACK] Mentor at least 5 new external contributors

Networking

• [ON TRACK] Mitigate CSRF attacks against internal networks (block rfc 1918 local addresses from non-local addresses) (bug 354493) (sworkman)
• [ON TRACK] HTTP/2: implement draft-11 of HTTP/2 spec and continue participating in spec development. (hurley / mcmanus)
• [ON TRACK] Turn on new HTTP cache in nightly (honza / michal)
• [ON TRACK] NetworkLinkService should be enabled so Necko can respond to network changes (bug 939318) (bagder)
• [ON TRACK] B2G: Provide way to "set network offline" per app (bug 786419) (valentin)
• [ON TRACK] Gather data and produce a report on performance wins vs resource costs of the seer on several desktop and mobile scenarios. (hurley)