Snappy Jan 17, 2013 Status (no meeting this week)

Actions

No actions.

Incoming

• Vladan reviewed Firefox Health Report for performance impact, filed bugs, meetings, etc. See meta bug 828152
• Vladan investigated why Firefox 18 performed so poorly on a LifeHacker.com benchmark for loading 9 tabs simultaneously
  • The profile I captured pointed to a variety of known performance issues in font loading, plugins, page reflows and network cache. Bugs + deeper analysis coming.

Projects

Startup & Shutdown

benwa, vladan, rafael, bbondy, yoric

Results

• bug 830694 should fix a regression in session restore startup (bug 830435)

Content (GC, CC, DOM storage, flash hang, DOM event/task scheduling)

billm, jcoppeard, smaug, mccr8, aklotz

Results

• Plugin Hang UI suspected to be causing crashes in bug 829909 and bug 828034, investigation ongoing

Todo

• New bug 830910 slow script warning does not account for plugin hangs
• bug 822051: Flash hangs on unsuspend

Temporary and Severe Browser Hangs (front-end, downloads, chromehang fixes, scrolling, prefs, slow sql)

gavin, ttaubert, jared, frank, john, yoric, irving

Results

• bug 789975: Helped investigate long pause while collecting telemetry info on main thread. jlebar has a patch

Todo

• bug 827852 - Investigating how to decrease jank by backgrounding serialization of history
• bug 829904 - Investigating how to decrease jank by backgrounding collection of session restore data