TPEPerformance/Meetings/2016-10-31

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OKR confidence

1. O: Make Firefox more stable [current crash rates] [Crashes per 1000 usage hours]
   1. KR: 1.2 nightly browser crashes per 100 ADI (per-month median)
      • Current: 2.46 -> 3.21 -> 2.38 -> n/a -> 1.65 -> 2.83 -> 2.58
   2. KR: 0.3 nightly startup crashes per 100 ADI (per-month median)
      • Current: 0.81 -> 0.82 -> 0.72 -> n/a -> 0.6 -> 0.91 -> 0.83
   3. KR: 2.0 nightly content crashes per 100 ADI (per-month median)
      • Current: 14.38 -> 8.70 -> 8.25 -> n/a -> 7.19 -> 10.91 -> 8.90
2. O: Improve Google document performance on Firefox
   1. O: Understand Google document performance issues on Firefox
      1. KR: Implement proposed fixes and measure results
         • Current:

Health Checks

1. Test code coverage (minus crash/no return code path)
   • N/A
2. Team mental health
   • Good
3. ADI / DAU / MAU
   • N/A

Previous Week

wcpan

• bug 1046166 REOPENED:: [e10s] userContent.css does not work
  • bug 1046166 - fixed patch, but dbaron wont accept review request until 11/7

kanru

• Study breakpad
• Study how to automate info retrieval for Uptime triage
• bug 1301346 RESOLVED::FIXED Add telemetry to collect how much time was spent in beforeunload and unload handler
  • bug 1301346 landed
  • Refined patch for bug 1301346
• bug 1300474 RESOLVED::FIXED Replace nsAutoPtr usages in geolocation with UniquePtr
  • bug 1300474 requested review

ting

• Triaged 1023 nightly crashes
• bug 1312326 RESOLVED::FIXED Use StringFromIPCMessageType for the OOM annotation when enqueue message
  • Filed bug 1312326 and submitted a patch
• bug 1312313 NEW:: Fails to build breakpad with clang-cl because of c++11 narrowing checks
  • Filed bug 1312309 and bug 1312313
• bug 1312309 RESOLVED::FIXED Fails to build jsoncpp with clang-cl
  • bug 1312309 try looks good, pushed to inbound
  • Filed bug 1312309 and bug 1312313
• bug 1301022 RESOLVED::FIXED Add an API to annotate pending IPC when push IPC message to pending queue OOM
  • bug 1301022 ni'd :gchang for uplifting
• bug 1312945 NEW:: PCompositorBridge::Msg_DidComposite__ID could flood the IPC pending message queue
  • Filed bug 1312945
• bug 1266517 NEW:: OOM | large crash in MessageChannel::OnMessageReceivedFromLink()
  • bug 1266517 there's a OOM reported showed PCompositorBridge::Msg_DidComposite__ID flood, ni'd matt for possible cause
• bug 752004 NEW:: Allow building Firefox with clang-cl on Windows
  • bug 752004 trying to spot all places cause compilation error
• bug 1300724 UNCONFIRMED:: Slowly growing "system-heap-allocated" memory usage
  • bug 1300724 checked the WPR logs from the reporter, unfortunately it doesn't contain stack info, ni'd him again and asked if he could do us another run
• bug 1251936 NEW:: Stand up Windows x86 debug static analysis builds
  • bug 1251936 blocked as fails building clang-plugin.dll for unresolved external symbols, seems we need a newer clang build on x86 for vs2015u3
  • bug 1251936 win32 static analysis on try is busted, am checking why
• bug 1030826 NEW:: Support AddressSanitizer builds on Windows with clang-cl
  • bug 1030826 try to build with asan on windows

gregweng

• After consulting gfx team, now there is a clear concept about how to output TraceLogger data to frontend via WebSocket.
• Done to know how devs log things in JS engine with Tracelogger. Most of them use AutoTraceLog to log method start and end.
• Read through how tracelogger log out...a simple fwrite. I suspect this will make some performance if it really write to file directly and in the synchronous way
• Studying LayerScopeWebSocketManager to see how output log to WebSocket in our engine

This Week Priorities

gweng

• Trace log websocket backend
• Discuss with devtools peers

kanru

• Plan hasal work week
• Ask digitharald about crash rates and Flow
• Study breakpad
• Automatic retrieval of uptime triage data
• Study how to generate test coverage on try

cervantes

• PTO

thinker

• PTO

wcpan

• Coverity
• MOZ_MUST_USE in netwerk/protocol

ting

• 64K/1M experiment
• clang-cl ASAN & static analysis

Incoming

• Oct: Oct-21--Nov-7 some team memebres are going on a two weeks around-the-island bike trip
• Nov: WebSummit/CodeSummit