1592048 - Browsertime is intermittently failing to measure 'firstPaint' from Youtube on android

Status: RESOLVED FIXED

(Testing :: Raptor, defect, P1)

Description

[Robert Wood [:rwood]]

Browsertime is intermittently failing to measure 'firstPaint' from Youtube on android, i.e. try run [0].

As seen in the corresponding browsertime.json artifact [1], 'statistics => timings => firstPaint' is missing from all page-load iterations.

Note that sometimes the 'firstPaint' value is successfully measured for some page-load iterations, i.e. in this job's browsertime.json artifact [2] you see that 'firstPaint' exists for page-cycles 0 and 1, but then is missing from the rest.

[0] https://treeherder.mozilla.org/#/jobs?repo=try&tier=1%2C2%2C3&revision=3f342522698abbad2301448e94c43c75e362bdc7&selectedJob=273247482

[1] https://taskcluster-artifacts.net/V0QpIklxTZekF0O3eWwhUw/0/public/test_info/browsertime-results/raptor-tp6m-youtube-geckoview/browsertime.json

[2] https://taskcluster-artifacts.net/KRkspwU8RrC_7qB18eUZBw/0/public/test_info/browsertime-results/raptor-tp6m-youtube-refbrow/browsertime.json

Comment 1

[Tarek Ziadé (:tarek)]

New try run https://treeherder.mozilla.org/#/jobs?repo=try&tier=1%2C2%2C3&revision=26a7c479632777f727de6eb8276b1721fad77268

Comment 2

[Tarek Ziadé (:tarek)]

Attachment: Bug 1592048 - Browsertime is intermittently failing to measure 'firstPaint' from Youtube on android

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/0b2ab5702860
Browsertime is intermittently failing to measure 'firstPaint' from Youtube on android r=rwood

Comment 4

[Cristina Coroiu [:ccoroiu]]

https://hg.mozilla.org/mozilla-central/rev/0b2ab5702860