1260582 - Investigate GeckoProfile initialization in onCreate

Status: RESOLVED INCOMPLETE

(Firefox for Android Graveyard :: General, defect)

Description

[Michael Comella (:mcomella) [NI reported issues only: ex-Mozilla]]

In onStart, there is a comment explaining we don't want to init GeckoProfile too soon (presumably for disk access issues). However, in onCreate, we do the same checks.

We should either:
* move the initial checks off the main thread
* Remove the comment from onStart
* Remove the comment from onStart and push the check onto the UIThread

Profiling recommended. :)

Comment 1

[Michael Comella (:mcomella) [NI reported issues only: ex-Mozilla]]

15:21 <mcomella> rnewman: I think we init the profile in onCreate (https://mxr.mozilla.org/mozilla-central/source/mobile/android/base/java/org/mozilla/gecko/BrowserApp.java#579), before we do that queue to the bg thread to prevent profile init too early (https://mxr.mozilla.org/mozilla-central/source/mobile/android/base/java/org/mozilla/gecko/BrowserApp.java#1052), so I
15:21 <mcomella> don't think the comment is correct. Am I missing something?

15:31 <@rnewman> mcomella: I think checking whether we were a guest profile used to be really expensive
15:31 <@rnewman> added here: http://hg.mozilla.org/mozilla-central/rev/f900c41d821d#l1.58
15:32 <@rnewman> mcomella: but also we didn't used to do any profile stuff in onCreate: http://hg.mozilla.org/mozilla-central/file/f900c41d821d/mobile/android/base/BrowserApp.java#l519
15:33 <@rnewman> mcomella: so yes, if you've moved profile init into onCreate, then (a) that might account for our startup time regression this quarter, and (b) that comment is inaccurate :P

Comment 2

[Michael Comella (:mcomella) [NI reported issues only: ex-Mozilla]]

FYI, GeckoProfile does its expensive init in GeckoProfile.forceCreate, which is called when the GeckoView is initialized in layout.

Comment 3

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