996531 - [tarako][perf] improve performance of loading Homescreen at startup

Status: RESOLVED DUPLICATE of bug 999953

(Firefox OS Graveyard :: Gaia::Homescreen, defect, P2)

Description

[Peipei Cheng (needinfo if you need my action)]

Step to reproduce
-----------------------------------------------------------------------
1. Go to Settings -> Screen lock
2. Disable Lock Screen
3. Long press power button, and select "Restart"
   --> After device starts, you will notice that it took about 2s for Homescreen to load all icons. According to spreadtrum, they want this time to be limited to 0.5s.


Test build
------------------------------------------------------------------------
Gaia 23488b1a45221c17e6a32fdd4c9d0fdbdcf2d021 
Gecko https://hg.mozilla.org/releases/mozilla-b2g28_v1_3t/rev/72055108f470
BuildID 20140414164002
Version 28.1
ro.build.version.incremental=eng.cltbld.20140414.200743

Comment 1

[Joe Cheng [:jcheng] (please needinfo)]

triage: not blocking. to backlog

Comment 2

[James Zhang (Spreadtrum)]

spreadtrum need this performance improvement, renfeng and fabrice, help.

Comment 3

[renfeng.mei]

any suggestion for this ?

the performace issue is the same as any other app start up.

Comment 5

[Ting-Yu Chou [:ting] (away)]

Attachment: profile

Captured a profile, brief glance I saw:

  convertAppsArray() @ Webapps.js,
  apps.forEach(function eachApp(app) {...}); @ grid.js:985

Haven't looked into details to understand what is going on.

Comment 6

[[:fabrice] Fabrice Desré]

(In reply to Ting-Yu Chou [:ting] from comment #5)
> Created attachment 8412471 [details]
> profile
> 
> Captured a profile, brief glance I saw:
> 
>   convertAppsArray() @ Webapps.js,

That's a known issue, but won't be fixed in 1.3t.