Open Bug 1407462 Opened 2 years ago Updated 2 years ago

Janky close tab animation with Touch Density UI

Categories

(Firefox :: Tabbed Browser, defect, P3, major)

58 Branch
x86_64
Windows 10
defect

Tracking

()

Tracking Status
firefox-esr52 --- unaffected
firefox56 --- unaffected
firefox57 --- wontfix
firefox58 --- wontfix
firefox59 --- wontfix
firefox60 --- fix-optional
firefox61 --- fix-optional

People

(Reporter: timbugzilla, Unassigned)

References

Details

(5 keywords)

Attachments

(1 file)

Attached file about_support.txt
On a 4K monitor with Touch density browser theme the tab close animations are very janky/jerky. It is not visible normal or compact themes.

This behaviour started a few days ago.

This has been reproduced with a new blank profile.

This has been reproduced at 1080p resolution by a Mozillazine user:

http://forums.mozillazine.org/viewtopic.php?p=14770534#p14770534

I am using Win 10 x64 and the x64 nightly browser. My platform has an Intel i5-4670 CPU and an AMD HD 7790 GPU. See attachment about:support output.
Easy STR:

1. Switch to Touch Mode Density in 'Customize'.

2. Open a few Tabs.

3. Close the tabs before the last tab on the bar.

Observe the jank. Its much less pronounced in other tab density modes. But very noticeable in Touch Mode.
Priority: -- → P2
This happens on 57b8 too.
The test build from Bug 1397092 (High Cpu/GPU usage due to "Ping Pong" loading indicators in Firefox 57 affecting browser performance) comment #221 seems to fix this bug:

https://bugzilla.mozilla.org/show_bug.cgi?id=1397092#c221

https://queue.taskcluster.net/v1/task/WXPS-VFDRYqSTknKbgOLcg/runs/0/artifacts/public/build/target.zip
Let's see how this looks when patches from 1397092 or 1406414 land (AFAICT, they haven't yet).
See Also: → 1406414, 1397092
Bug 1406414 has landed, can you test if things are any better in the latest nightly, timbugzilla?
Flags: needinfo?(timbugzilla)
(In reply to Mike Taylor [:miketaylr] (58 Regression Engineering Owner) from comment #5)
> Bug 1406414 has landed, can you test if things are any better in the latest
> nightly, timbugzilla?

It's a bit better, but still not smooth. Normal density UI is much, much smoother still.
Flags: needinfo?(timbugzilla)
(In reply to Mike Taylor [:miketaylr] (58 Regression Engineering Owner) from comment #5)
> Bug 1406414 has landed, can you test if things are any better in the latest
> nightly, timbugzilla?

Here's a profile that includes closing a few tabs:

https://perfht.ml/2xJtmsd
Jim, can you repro on your new fancy laptop?
Flags: needinfo?(jmathies)
Priority: P2 → P3
Yes, can confirm The tab sliding animation janks. Profile of 5 closed tabs:

https://perfht.ml/2B9Qm4B
Flags: needinfo?(jmathies)
Keywords: polish
any chance this makes into ESR60?
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