1888610 - [GPU-canvas] A simple canvas demo stutters when opened in two foreground tabs (without using much GPU)

Status: NEW

(Core :: Graphics: Canvas2D, defect)

Description

[Mayank Bansal]

Use latest Nightly on Windows
Set teh following prefs:

gfx.direct2d.disabled = true
gfx.canvas.accelerated = true
gfx.canvas.remote.worker-threads = 0

Open https://lab.hakim.se/hypnos/ in two tabs
Drag one of the tabs to create a new window and set the two windows side-by-side

AR: Demo in both the tabs/windows stutters
ER: Not so
Profile: https://share.firefox.dev/3VE0YW5

---

Bisection:
Bug 1829026 - Handle KERN_ABORTED from semaphore_wait. r=aosmond
Differential Revision: https://phabricator.services.mozilla.com/D195952

Comment 1

[Mayank Bansal]

Attachment: abou:support

Comment 2

[Mayank Bansal]

Attachment: bandicam 2024-03-29 13-02-08-722.mp4

Comment 3

[Mayank Bansal]

Also happen on https://lab.hakim.se/sphere/ : https://share.firefox.dev/3IWh4Tl

Comment 4

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

Set release status flags based on info from the regressing bug 1829026

Comment 5

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

:lsalzman, since you are the author of the regressor, bug 1829026, could you take a look?

For more information, please visit BugBot documentation.

Comment 6

[Mayank Bansal]

This still repros