Platform/2014-11-04

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Engineering Meeting Details

  • Tuesday 2014-11-04 - 11:00 am Pacific Standard Time
  • Dial-in: Audio-only conference# 98411
    • People with Mozilla phones or softphones please dial x4000 Conf# 98411
    • US/Toll-free: +1 800 707 2533, (pin 4000) Conf# 98411
    • US/California/Mountain View: +1 650 903 0800, x4000 Conf# 98411
    • US/California/San Francisco: +1 415 762 5700, x4000 Conf# 98411
    • US/Oregon/Portland: +1 971 544 8000, x4000 Conf# 98411
    • CA/British Columbia/Vancouver: +1 778 785 1540, x4000 Conf# 98411
    • CA/Ontario/Toronto: +1 416 848 3114, x4000 Conf# 98411
    • UK/London: +44 (0)207 855 3000, x4000 Conf# 98411
    • FR/Paris: +33 1 84 88 37 37, x4000 Conf# 98411
    • Gmail Chat (requires Flash and the Google Talk plugin): paste +1 650 903 0800 into the Gmail Chat box that doesn't look like it accepts phone numbers
    • SkypeOut is free if you use the 800 number
  • Engineering Vidyo Room / Air Mozilla / MTV Alien Nation / TOR Finch / SFO Warfield / PDX Hair of the Dog
  • join irc.mozilla.org #planning for back channel

Need To Know

(Release and system issues that may impact engineering this week.)

Notices/Schedule (lmandel)

Next Merge: October 21, 2019 Next Release: October 22, 2019
Trains
Central: 71 Aurora: 54 Beta: 70 Release: 69.0


  • possible 33.0.3 for further gfx/stability fixes
  • 34 beta6 desktop shipped today
  • 34 beta6 mobile should ship tomorrow
  • 33.1 build3 likely coming
  • Next beta go to build
    • desktop: beta7 Thu
    • mobile/desktop: beta8 Mon
  • Next week is the last week for beta builds. Still ~70 tracked bugs. Get your fixes in!

Build Changes (gps)

(Build changes of which engineers should be aware.)



RelEng (catlee)

(Repo, test, and other information for engineers from the release engineering team.)



Upcoming Outages/Upgrades

(System outages/upgrades and tree closures that impact engineering.) <Read Only>

  • Tree Closing Window on Saturday, November 8. bug 1087431 is the tracker.
    • The November 1 window reported last week was postponed to avoid conflicts with decade builds. Final notice is given to the dev groups when everything is "go".
    • An unusually long window -- approx 11-1/2 hours.
    • Most of the work is network related, with interruptions in traffic from time to time.
    • We'll leave trees "open", but developers should expect longer than normal build times and potential need to restart some jobs.

Quality Programs

(An opportunity to hear about status with the various quality programs that do not have a formal team structure.)

OrangeFactor (ryanvm)

<Read Only>

  • Past week's OrangeFactor: 8.38 (last week: 7.77).
  • e10s testing is an ongoing source of pain. I disabled a number of top oranges in the last week trying to get them stable.
  • 33 intermittent failures marked as fixed in the last week - List - Thanks!.

CritSmash (dbolter)

MemShrink (njn)

<Read Only>

Please grow your buffers exponentially. It reduces heap churn and fragmentation.

Stability (kairo)

<Read Only>

Bugs needing attention (all GFX, in order of priority):

Team Stand-ups

(In <2 mins, what did your team accomplish last week, on what is your team working on this week, and on what, if anything, is your team blocked? No questions during the stand-ups. All questions should be asked during the roundtable.)

A*Team (jgriffin)

<Read Only>

Blog and newsgroups posts


Accessibility (dbolter)

B2G Services (dougt)

Cloud Services (mmayo)

Desktop Platform (bsmedberg)

Developer Services (gps/lthomson)

Developer Tools (prouget)

DOM (jst/overholt)

Electrolysis (e10s) (blassey)

  • Add-on performance, printing, and plugins have improved over the past week.


Firefox Desktop (gavin)

Firefox Mobile (mfinkle)

Done since last week that might impact others

  • worked on Reader mode/reading list

Doing this week that might impact others

  • continuing work on reader mode/reading list
  • discussions underway with Desktop and Cloud Services on Password Management

Working on that is dependent on others

  • Splitting APK - next steps are with RelEng
  • Disabling OCSP in Firefox for Android
  • Surfacing new 'Firefox Account Locked' messaging - awaiting input from Cloud Services

Mobile Platform (snorp)

GFX (milan)

  • Ongoing graphics driver/hardware related issues being looked at in the release (33) channel. This is having a negative impact on looking at the beta tracked issues.
  • Second round of graphics planning. With input from desktop and date changes from Firefox OS, here is the updated list of priorities:
Previous Plans Current Plans
  • Firefox OS 2.0 & 2.1 blockers
  • E10S support (OMTC)
  • Firefox OS memory usage reduction
  • Project Silk support
    • Scrolling physics + v-sync
  • APZ improvements
    • OOP support
    • fake overscroll
  • WebGL desktop performance (critical items)
  • WebGL mobile performance
------ Items above planned for Gecko 39/2.2/GDC/MWC ------
  • OMTC everywhere
  • APZ on desktop
  • Tiling on desktop
------ Items above planned for Gecko 41 ------
  • Skia canvas
  • WebGL performance parity on desktop
------ Items above planned for Gecko 43 ------
  • Skia content
  • Multi-threaded content painting
------ Items above planned for Gecko 45 ------
------ Items above planned for 2015 ------
  • Firefox OS 2.0 & 2.1 blockers
  • (new) Firefox OS 2.2 on Android Lollipop
  • E10S support (OMTC)
  • ↓ Firefox OS memory usage reduction (minimal)
  • Project Silk support
    • Scrolling physics + v-sync
------ Items above planned for Gecko 38/2.2 ------
  • WebGL2 support + demo
  • WebGL desktop performance (critical items)
  • (new) Desktop OOM driver related issues
------ Items above planned for Gecko 39/GDC ------
  • OMTC everywhere
  • APZ on desktop
  • Tiling on desktop
  • (new) Desktop scrolling performance
------ Items above planned for Gecko 41 ------
  • ↓ APZ improvements
    • OOP support
    • fake overscroll
  • ↓ WebGL mobile performance
  • ↓ Skia canvas
  • ↓ WebGL performance parity on desktop
------ Items above planned for Gecko 44 ------
------ Items above planned for 2015 ------
  • ↓ Skia content
  • ↓ Multi-threaded content painting

JS (naveed)

<Read Only>

  • THIS WEEK
    • bug 1087468: We still have regressions we the inlining of any for-loop, still looking at the NavierStokes improvement, I was able to isolated a better patch which give us ~22.5% improvement on NavierStokes, without regressing other benchmarks.
    • Compacting GC (bug 650161) Compacting shell tests are now enabled on inbound
    • Only perform a minor GC when the store buffer is full (bug 1089582)
    • Landed new memory organization for non-native objects (bug 1073842)
    • bug 979594 (Atomics for plain JS): Landed, at last
  • THIS WEEK AFFECT OTHERS
    • Land the asm.js and DOM parts of Atomics
  • SLOWING US DOWN
    • n/a

Emscripten (naveed)

  • Updated emscripten unit test system to run on nightly, aurora and beta test results
    • Uncovered a number of regressions in the dev channels
      • These have all (or almost all) been filed. Let us know if you need any assistance replicating the issues

Layout (jet/dbaron)

<Read Only>

  • Platform-wide business planning last week and this week.
  • Minor updates to Q4 Layout goals

Media (mreavy)

<Read Only>

  • Found major perf issue on B2G caused by --- the network activity status anim! bug 1091240 and follow-ons.
    • Caused 20-30% CPU use and multi-second network latency in some cases. Wallpaper fix is to reduce frame rate to 5-6FPS from 30fps (and the anim had ~5 duplicates of each frame anyways, so that doesn't even change the visual)
    • Dramatically improves Hello on B2G; also helps with fetching larger amounts of content/PDFs/images.
  • Fixed getUserMedia regression (delay) on Mac audio when switching outputs (like plugging in earbuds) due to bug 848954 on OSX 10.6-10.9
    • Found that Yosemite (10.10) has broken this (and output panning to right speaker to avoid mic on top of left speaker)
  • Progress towards using Promises with getUserMedia/CreateOffer/etc at TPAC last week
  • Hope to land fix for 3 top WebRTC oranges today


Necko (dougt/jduell)

  • B2G emulator perma-oranges: ran on desktop emulator and didn't see timeout, so we're blaming on hardware and disabling tests for now.
  • fixed topcrasher (Avast HTTP scanning prevented shutdown) (bug 1087674)
  • Upgrading to v15 of the HTTP/2 spec.
  • OpenVPN API is getting close. Unclear how soon we'll get UI/webAPI done (bug 1033580)


Performance (vladan)

Seceng (dougt)

Shumway (tschneidereit)

WebAPI (overholt)

Roundtable

(Comments and questions that arise during the course of the meeting or otherwise do not have a section.)

<Read only beyond this point>

Friends of the Tree

Mailing List Threads

(Threads that are likely to be of interest to engineering from various mailing lists.)

Good Reads

(Links to blog posts, books, videos, etc. that you think will be of interest to others.)

irc #planning Log From This Meeting