Kan-Ru Chen [:kanru] (UTC+9) Reporter
	Description • 10 years ago

Profile the template app to find the startup time overhead and what could be improved on multi-core device.

We need to compare the behavior on 1, 2, or 4 cpu cores.

	Ting-Yu Chou [:ting] (away)
	Comment 1 • 9 years ago

Instead of the template app, this [1] seems a more realistic one. See the original post [2].

[1] https://github.com/mozilla-b2g/gaia/tree/master/dev_apps/test-startup-limit
[2] https://groups.google.com/forum/#!msg/mozilla.dev.gaia/1rEMVKeUfIw/mFsG5mgJbnoJ

	Ting-Yu Chou [:ting] (away)
	Comment 2 • 9 years ago

This is the test result on my Flame 319MB (v118D) today, with versions:

  Gaia: ad1ef4b324faf0e8
  Gecko: https://hg.mozilla.org/mozilla-central/rev/c8c4a2746aac

  ting@sweet:~/w/fx/os/flame/gaia$ RUNS=20 APP=test-startup-limit node tests/raptor/launch_test
  [Raptor] Preparing to start testing...
  [Cold Launch: Test Startup Limit] Priming application
  [Cold Launch: Test Startup Limit] Starting run 1
  ...
  [Cold Launch: Test Startup Limit] Run 20 complete

  Metric                            Mean     Median   Min      Max      StdDev  p95    
  --------------------------------  -------  -------  -------  -------  ------  -------
  coldlaunch.navigationLoaded       230.100  229.000  193.000  313.000  24.738  284.500
  coldlaunch.navigationInteractive  266.100  264.500  225.000  361.000  28.053  324.500
  coldlaunch.visuallyLoaded         806.750  781.500  735.000  975.000  63.796  934.000
  coldlaunch.contentInteractive     807.100  782.000  735.000  976.000  63.822  934.500
  coldlaunch.fullyLoaded            808.250  783.000  736.000  980.000  64.389  937.000
  coldlaunch.pss                    8.245    8.200    8.200    8.300    0.050   8.300  
  coldlaunch.uss                    0.000    0.000    0.000    0.000    0.000   n/a    
  coldlaunch.rss                    13.365   13.400   13.300   13.400   0.048   13.400 

  [Cold Launch: Test Startup Limit] Testing complete

But on Raptor [1], the same version has visuallyLoaded over 1s. Eli, do you know what could make the difference?

[1] http://raptor.mozilla.org/#/dashboard/script/mark.js?device=flame-kk&branch=master&memory=319&suite=coldlaunch&to=1431646696471&from=1431641136819&panelId=13&fullscreen

	:Eli Perelman
	Comment 3 • 9 years ago

I know the Jenkins devices use reference workloads and may have other environmental differences. When was the last time you did `make raptor`?

	Ting-Yu Chou [:ting] (away)
	Comment 4 • 9 years ago

Right before testing.

	Ting-Yu Chou [:ting] (away)
	Comment 5 • 9 years ago

(In reply to :Eli Perelman from comment #3)
> I know the Jenkins devices use reference workloads and may have other
> environmental differences.

The test right after |./flash.sh|, |make raptor| and |make referece-workload-medium|, I got this:

  ting@sweet:~/w/fx/os/flame/gaia$ RUNS=20 APP=test-startup-limit node tests/raptor/launch_test
  [Raptor] Preparing to start testing...
  [Cold Launch: Test Startup Limit] Priming application
  ...
  Metric                            Mean      Median   Min      Max       StdDev   p95     
  --------------------------------  --------  -------  -------  --------  -------  --------
  coldlaunch.navigationLoaded       676.550   241.500  191.000  2533.000  882.461  2520.000
  coldlaunch.navigationInteractive  715.650   285.500  226.000  2571.000  878.097  2554.000
  coldlaunch.visuallyLoaded         1196.600  789.000  722.000  2937.000  810.044  2908.500
  coldlaunch.contentInteractive     1197.000  789.500  722.000  2937.000  809.962  2908.500
  coldlaunch.fullyLoaded            1197.850  790.000  723.000  2938.000  810.051  2909.500
  coldlaunch.rss                    14.490    13.300   13.200   19.300    2.405    19.300  
  coldlaunch.uss                    0.000     0.000    0.000    0.000     0.000    n/a     
  coldlaunch.pss                    9.770     8.750    8.700    13.900    2.065    13.900  

  [Cold Launch: Test Startup Limit] Testing complete

From b2g-info, Preallocated process was shown at 5th run, probably due to busy indexedDB.

	Bobby Chien
	Comment 6 • 9 years ago

[Tracking Requested - why for this release]:

	BMO Automation
	Comment 7 • 6 years ago

Firefox OS is not being worked on