Meeting Notes Meetings notes from the Mozilla community

Notices/Schedule

• Our postmortem was held today
• Firefox 19 beta 3 is going to build at EOD today, please land all approved/unlanded changes asap

Key Issues

Actions Last Week

• bz to follow up to mailing list on instanceof
• ctalbert to ensure we graph the PGO memory usage
  • ed morely/ryan vm to monitor and flag issues and mail to dev-tree management
• johnath to ensure experiment with VS2012 builds
  • joduinn to ensure VS2012 Update 1
• dmandelin to measure PGO impact on start up and benchmarks

Issues

• PGO (ehsan)
• UUID/Interface mismatch (bsmedberg)
• Future Issues – early discussion on dev-platform, monitoring for discussion if not resolved

Products/Projects

Firefox OS

• B2G Landing Process: https://wiki.mozilla.org/Release_Management/B2G_Landing

Firefox Mobile

Open Sans and Charis for Content

• As part of the Readability 2.0 feature, bug 831354 – Ship fonts for content in Firefox for Android landed in central after a heroic effort on part of UX and Johnathan Kew to correct test failures and provide follow up patches such as bug 831883 – eliminate the Open Sans fonts bundled in the Reader core theme, just use Gecko’s “installed” copy in order to are mitigate the resulting package size increase by about ~200k. this also happens to fix bug 792370 – Reader Mode lacks proper italic and bold faces for Open Sans.
• We are also looking into a possible talos regression bug 833000 – Talos Regression trobopan on Android, 40%, Jan 19
• Once we have the above issue nailed down, we will figure out if this will ride the trains for Fx21 or if we’ll uplift to Fx20

Memory, Responsiveness, Usability

• Regression in fX21 fixed: bug 831188 – about:plugins lists blocklisted and user-disabled plugins
• Also part of the Readability 2.0 effort, a prototype is under test/iteration bug 757257 – font inflation element grouping
• Fix for IME regression has landed and is being targeted for aurora bug 825120 – Previous composition is not cleared when changing focus from old to new input

WebRTC

• Simple WebRTC UI
• Patches to enable Android audio landed
• Currently Testing audio calls, DataChannel
• See: https://webrtc-apps.etherpad.mozilla.org/4

Stability Wins

• bug 830131 – java.lang.NullPointerException: at org.mozilla.gecko.InputMethods.needsSoftResetWorkaround(InputMethods.java) which we are also targeting for aurora

• bug 827176 – java.lang.NullPointerException: at org.mozilla.gecko.GeckoInputConnection.notifyTextChange(GeckoInputConnection.java) at org.mozilla.gecko.GeckoInputConnection.endBatchEdit(GeckoInputConnection.java) which we are targeting for aurora and beta

In progress/under investigation

• bug 826385 – “Clear private data” not clearing cache.

Stability Report [Weekly]

• Trunk bugs needing traction:
  • bug 827946 (Linux, skia::BGRAConvolve2D), no comment from Joe in a week and this is huge for a Linux crash (>3% of all crashes).
  • bug 830654 (js::ObjectImpl::getPrivate), needs owner
  • bug 827171 (nsPluginStreamListenerPeer::OnStartRequest, mobile), needs owner, also affects Aurora seriously

Snappy [Bi-Weekly]

• Jan 17 status
• Snappy updates move to bi-weekly after next week

• Help us understand slow shutdowns – Turn On The Performance Reporter!

Memshrink [4th Tuesday of Month]

• The new, easy-to-use version of DMD landed. about:memory is our main tool for understanding and reducing memory consumption, and DMD is our main tool for making about:memory better. It was particularly helpful in improving our understanding of B2G memory consumption.

• A bad memory consumption regression has made it onto Aurora. It relates to a refactoring of image-handling code. Seth Fowler is investigating. We wouldn’t have noticed this without AWSY.

• MemShrink reports: week 77–78, week 79–82.

Engineering Metrics