1715059 - Slow animation at https://discord.com/hypesquad

Status: UNCONFIRMED

(Core :: Graphics: WebRender, defect)

Description

[benzin.octano5]

User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:89.0) Gecko/20100101 Firefox/89.0

Steps to reproduce:

https://discord.com/hypesquad slow animation and lagging

Actual results:

Animation is lagging.
https://share.firefox.dev/3pt10Ox

Expected results:

Animations should be displayed fine

Comment 1

[Jamie Nicol [:jnicol]]

This is quite the texture cache stress test!

It doesn't run great for me in chrome either, FWIW

Comment 2

[benzin.octano5]

(In reply to Jamie Nicol [:jnicol] from comment #1)

This is quite the texture cache stress test!

It doesn't run great for me in chrome either, FWIW

Hi, what kind of profiler do you need?
Sorry for bad english

Comment 3

[benzin.octano5]

This affects all types of animations, including videos and youtube.

Comment 4

[benzin.octano5]

Attachment: discord.mp4

Left: Firefox 89
Right: Brave 1.25.70
OS: Windows 7 64 bits.

Comment 5

[benzin.octano5]

https://drive.google.com/file/d/1Hr7CMgX9Qo2QZ_BytjQaY8q8p_cJuKVi/view?usp=sharing
Left: Firefox 89
Right: Brave 1.25.70
OS: Windows 7 64 bits.

Comment 6

[Gareth Perks [pexxie]]

(In reply to benzin.octano5 from comment #0)
https://discord.com/hypesquad slow animation and lagging

Great find!

(In reply to Jamie Nicol [:jnicol] PTO until 2021-09-20 from comment #1)
It doesn't run great for me in chrome either, FWIW

Odd. Different story for me.

Firefox: ~35-130fps (layout.frame_rate=1000)
Chrome: ~80-270fps (chrome.exe --max-gum-fps="1000")

Firefox with Layers: ~130-260fps. (gfx.webrender.force-legacy-layers=true)
Amazing how much better the legacy Layers min fps is than Chrome's! It's a shame we're so desperate to get rid of it. :-(

Comment 7

[Jose Silva]

The animation runs at ~60FPS on chromium and Firefox averages 20FPS.

Firefox Profile: https://drive.google.com/file/d/1E4P4UwUbqzYJHxKbdPQikiqiukRZ9yaL/view?usp=sharing
Chromium Profile: https://drive.google.com/file/d/1T8c3BnlYzcNWK8mhqYn5LoTaHL03flx5/view?usp=sharing

How is chromium able to handle it so well compared to Firefox?