1875046 - With webgl OOP enabled (default), Game "Bubble Guinea Pop" loads extremly slowly

Status: NEW

(Core :: Graphics: CanvasWebGL, defect)

Description

[Tom S. (please needinfo tschuster)]

STR:

• Go to https://armorgames.com/play/4846/bubble-guinea-pop?ruffle
• Wait for shortish loading spinner
• Click on the play button

ER:
After maybe 3-5s the main menu should appear. (Compared to Chrome)

AR:
It takes basically forever to load. (2 minutes maybe?)

A profile shows it's mostly blocked on WebGL2RenderingContext.getSyncParameter.

Comment 1

[Mayank Bansal]

With webgl OOP disabled, the demo works fine
webgl OOP disabled: https://share.firefox.dev/47GMdnI

Comment 2

[Mayank Bansal]

Attachment: about:support

Comment 3

[Mayank Bansal]

marking dependency on bug 1669530 for visibility.

Comment 4

[BugBot [:suhaib / :marco/ :calixte]]

Set release status flags based on info from the regressing bug 1669530

:jgilbert, since you are the author of the regressor, bug 1669530, could you take a look? Also, could you set the severity field?

For more information, please visit BugBot documentation.

Comment 5

[BugBot [:suhaib / :marco/ :calixte]]

Set release status flags based on info from the regressing bug 1669530

Comment 6

[Adrian Wielgosik [:adrian17]]

We just independently encountered this again on the same project, https://share.firefox.dev/3HIrLby . It appears that wgpu library in some cases calls getSyncParameter() quadratic over the number of submits performed in a frame. Combined with the IPC overhead of a single getSyncParameter() call, this becomes a major perf issue. I'm going to submit an issue report on wgpu's github later.