Electrolysis/Meetings/2016-09-22

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mconley

• bug 1300411 - user reports excessive load spinning when switching tabs with e10s in 48.0.2 release
  • gps pointed me at UIforETW as a way of getting really nice, low-level cross-process profiles, using a nicer front-end for Microsoft's Event Tracing infrastructure.
  • Instructions to point users to.
  • billm's patch from bug 1279086 landed last week (and just made uplift!). Still waiting on Telemetry data to saturate and give us a few more days worth, but...
    • A nice improvement on FX_TAB_SWITCH_SPINNER_VISIBLE_LONG_MS shows up September 18th, according to Telemetry
    • FX_TAB_SWITCH_SPINNER_VISIBLE_MS saw an improvement that day too, unsurprisingly
    • FX_TAB_SWITCH_TOTAL_E10S_MS started to dip that day as well, which is nice
  • I think billm and I are going to split up bug 1303077 to try to get main thread stacks from the content process when the spinner is shown for a while.
  • More reports of spinner on Reddit. I'm engaging with the user.

bytesized

• bug 1301452 - (tab switcher telemetry probe test) finished and checked in.

felipe

• bug 1304113 - Change tab switching telemetry probes to be opt-out
• bug 1304164 - Disable e10s for russian users through the system add-on
• bug 1301131 - Disable e10s for users who see long tab spinner
• bug 1297755 - Beta 50 A/B test will all multiprocessCompatible add-ons, except TabMixPlus
• bug 1302846 - Add Test Pilot add-ons to e10s whitelist