1724662 - Janking when browsing multiple pages including tradingview.com

Status: RESOLVED DUPLICATE of bug 1717209

(Core :: Graphics: Canvas2D, defect)

Description

[Asif Youssuff]

From https://www.reddit.com/r/firefox/comments/ozutze/heavy_js_freezing_the_ui/

Basic information

Steps to Reproduce:

Websites with heavy js are able to freeze the firefox interface, including tab switching

it happens frequently when I am on a different tab for a while and then try to switch to tradingview tab.

Expected Results:

No janking.

Actual Results:

The browser UI freezes for about 10seconds and then the tab appears

the entire browser became white for a while, like it does when it loads from pagefile instead of memory

---

More information

Profile URL:

https://share.firefox.dev/3jxIFgF

https://share.firefox.dev/3s14Kbk

Basic systems configuration:

OS version: Windows 10

GPU model: NVIDIA GeForce RTX 3080

Number of cores: 6

Amount of memory (RAM): 16GB

Thanks so much for your help.

Comment 1

[Asif Youssuff]

Attachment: about:support

Comment 2

[Mayank Bansal]

The original profile has most time spent in Canvas

I played with the charts - zoomed in and out and dragged the chart area. My profile shows some time spent in Baseline for a few functins.
https://share.firefox.dev/3yB37n1

Iain, is there anything that can be improved here?

Comment 3

[Markus Stange [:mstange]]

The original profiles show 20 second long composites. Example: https://share.firefox.dev/3ixMQtJ

It seems like there are one or two textures that are deadlocked on, where we only make progress once both the Renderer and the content have timed out from their 10 second timeout.
For example, the Renderer blocks in RenderDXGITextureHost::LockInternal(), which calls mKeyedMutex->AcquireSync(0, 10000).

Comment 4

[Bob Owen (:bobowen)]

This looks very similar to bug 1717209.
Asif - can you re-test this please once Fx91 is released tomorrow (or maybe now in Beta).

Comment 5

[Asif Youssuff]

Bob, user says Firefox 91 resolves the issue.

Comment 6

[Bob Owen (:bobowen)]

(In reply to Asif Youssuff from comment #5)

Bob, user says Firefox 91 resolves the issue.

Great, thanks for following-up on this.