1373822 - Lag when closing tabs

Status: RESOLVED INVALID

(Firefox :: Tabbed Browser, defect)

Description

[[:philipp]]

Version     56.0a1
Build-ID     20170616030207
User-Agent     Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:56.0)
Gecko/20100101 Firefox/56.0

in the last 1-2 days i started noticing that the tabs-close animation got much more laggy in my nightly profile, to a point where it's getting quite distracting.

this is a snapshot taken with the gecko profiler: http://bit.ly/2rFp6pH

Comment 1

[Mike Conley (:mconley) (:⚙️)]

This sounds like something past was hitting today. Do you have the Containers Test Pilot experiment active? If so, does disabling it help?

Comment 2

[[:philipp]]

yes i have v2.3.0 of the container testpilot addon running and disabling it is getting rid of the lag immediately indeed.

Comment 3

[Mike Conley (:mconley) (:⚙️)]

Hey past, did you ever file a bug with the Containers / Test Pilot folk about this?

Comment 4

[[:philipp]]

yes, looks like it was raised at https://github.com/mozilla/testpilot-containers/issues/598 - thanks for helping to triage the issue so quickly.

Comment 5

[Kamil Jozwiak [:kjozwiak]]

Mike, should we close this off as this relates to the test pilot? As per comment#4, we have a github issue opened to address the performance regression.

Comment 6

[Panos Astithas (he/him) [:past] (please ni?)]

(In reply to Kamil Jozwiak [:kjozwiak] from comment #5)
> Mike, should we close this off as this relates to the test pilot? As per
> comment#4, we have a github issue opened to address the performance
> regression.

I think I asked Mike last week and he said yes, but I'm jetlagged and I might be imagining things.

Comment 7

[Mike Conley (:mconley) (:⚙️)]

Yep, let's close this out.