868997 - 100+ms perf regression for all apps startup launch time.

Status: RESOLVED WORKSFORME

(Firefox OS Graveyard :: General, defect)

Description

[Anthony Ricaud (:rik)]

Gaia window: 1ab9bc88799b4af1 and 23f0b698f96affd9
Gecko window: 35b5518a444c0e2d and a16e0162d71b6deb

https://datazilla.mozilla.org/b2g/?branch=master&range=7&test=cold_load_time&app_list=browser,calendar,camera,clock,contacts,email%20FTU,fm_radio,gallery,messages,music,phone,settings,usage,video&app=gallery&gaia_rev=1ab9bc88799b4af1&gecko_rev=35b5518a444c0e2d

https://datazilla.mozilla.org/b2g/?branch=master&range=7&test=cold_load_time&app_list=browser,calendar,camera,clock,contacts,email%20FTU,fm_radio,gallery,messages,music,phone,settings,usage,video&app=gallery&gaia_rev=23f0b698f96affd9&gecko_rev=a16e0162d71b6deb

Comment 1

[Anthony Ricaud (:rik)]

The Gaia diff only shows a change in the SMS app so I think it is a Gecko regression.

Comment 2

[Jason Smith [:jsmith]]

Probably better to get a regression range down to a day, then go further to nail this down to a gecko commit rather than trying to do direct testing.

Comment 3

[Dale Harvey (:daleharvey)]

Sorry, wrong bug

Comment 4

[Marcia Knous [:marcia]]

Jason and I talked about this and it was suggested that maybe someone like Dave Hunt could help with analysis, so I am going to set needs info from him.

Comment 5

[Dave Hunt [:davehunt] [he/him] ⌚BST]

It's difficult to see this regression now due to bug 880390 causing the datazilla charts to mask smaller regressions. Is this still an issue? Could you paste any relevant results into the bug as a comment. I'm happy to attempt to replicate and reduce the regression range.

Comment 6

[Anthony Ricaud (:rik)]

We have better numbers now. Looking back 60 days earlier, I can spot this regression around May 1st but also a return to better numbers around May 11th.
https://datazilla.mozilla.org/b2g/?branch=master&device=unagi&range=60&test=cold_load_time&app_list=browser,calendar,camera,clock,contacts,email%20FTU,fm_radio,gallery,messages,music,phone,settings,usage,video&app=gallery&gaia_rev=36644b4d9a7f57ba&gecko_rev=2ff3151f31b6e46a

I'd say WORKSFORME after the improvements around May 11th.