1656959 - Significantly higher GPU use in Firefox on bilibili.com when compared to Chromium browsers

Status: NEW

(Core :: Graphics: Canvas2D, defect, P3)

Description

[esmyth]

Basic information

Steps to Reproduce:

1. Navigate to https://www.bilibili.com/video/BV1G54y1D766?spm_id_from=333.851.b_7265706f7274466972737431.7
2. Play video

Expected Results:
2-3% CPU, 15-16% GPU utilization (Edge, Chrome)

Actual Results:
17-20% CPU, 55-65% GPU utilization - System 1
7-10% CPU, 0% GPU utilization across 2 processes (17-20% total) - System 2

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More information

SUMO user report: https://support.mozilla.org/en-US/questions/1297477

Profile URL:

• System 1: https://share.firefox.dev/3k7tXg0
• System 2: https://share.firefox.dev/2PmPLGg

System 1 configuration:

OS version: Windows 10 Pro build 18363

GPU model: NVIDIA GeForce GTX 1050 Ti

Number of cores: 4

Amount of memory (RAM): 16GB

System 2 configuration:

OS version: Windows 10 Pro build 19041

GPU model: Intel UHD Graphics 630/NVIDIA GeForce GTX 1050 Ti w/ Max-Q

Number of cores: 6

Amount of memory (RAM): 32GB

Comment 1

[Bas Schouten (:bas.schouten)]

This profile looks like we're just spending time waiting for the rendering thread to read the canvas data. I don't know our current architecture well but my guess is that just means we're pretty busy rendering? Judging the high GPU that doesn't seem unfeasible. This feels like a graphics issue to me. Any ideas Jeff? Ideally the profile would include the thread doing the rendering of the canvas content, but I don't know which thread that is these days :).

Comment 2

[Jeff Muizelaar [:jrmuizel]]

I see canvas perf being a problem here too.