1514531 - firefox gpu usage is 3x larger than chrome

Status: UNCONFIRMED

(Core :: Graphics, defect, P3)

Description

[Andrei Ancuta]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0

Steps to reproduce:

refresh firefox
open any HD youtube video and check gpu usage in task manager.
repeat with chrome.

Chrome video stats:
Video ID / sCPNaQ1entvy7vI / N7MJ G0VW KRSN
Viewport972x547*1.25
Current / Optimal Res1280x720@24 / 1280x720@24
---
Firefox video stats:
Video ID / sCPN
aQ1entvy7vI / Q94R V7BS Q73V
Viewport
988x556*1.25
Current / Optimal Res
1280x720@24 / 1280x720@24
Volume / Normalized
100% / 100% (content loudness -6.4dB)
Codecs
vp09.00.51.08.01.01.01.01 (247) / opus (251)
Color
bt709 / bt709
Host
r4---sn-gqn-ungs


Actual results:

chrome gpu usage is ~4%
firefox gpu usage is ~12%


Expected results:

expectation -- have similar resource utilization
this affects my laptop battery life by at least 2 hours.

win 10 rs5 17763.194
intel i5-7200U with hd 620 igpu, no dedicated gpu, latest drivers from intel's site

Comment 1

[Andrei Ancuta]

something weird happend with the clipboard. here's the stats -- both browsers using vp9 

chrome:
Video ID / sCPNaQ1entvy7vI / N7MJ G0VW KRSN
Viewport972x547*1.25
Current / Optimal Res1280x720@24 / 1280x720@24
Volume / Normalized56% / 56% (content loudness -6.4dB)
Codecsvp09.00.51.08.01.01.01.01 (247) / opus (251)

firefox:
Video ID / sCPNaQ1entvy7vI / 5T7V QC37 0EWT
Viewport988x556*1.25
Current / Optimal Res1280x720@24 / 1280x720@24
Volume / Normalized100% / 100% (content loudness -6.4dB)
Codecsvp09.00.51.08.01.01.01.01 (247) / opus (251)

Comment 2

[Jean-Yves Avenard [:jya]]

When using the DXVAChecker utility (available at):
https://bluesky23.yukishigure.com/en/DXVAChecker.html

Go into the last tab: GPU Engine engine.

While playing the video only in Firefox, make a screen capture of that windows and attach it here.

Now same thing with Chrome (stop the video playback in Firefox).

Thank you

Comment 3

[Andrei Ancuta]

Attachment: firefox.png

Firefox results

Comment 4

[Andrei Ancuta]

Attachment: chrome.png

Chrome results