1410556 - Very slow scrolling on cpu-monkey comparison page

Status: RESOLVED WORKSFORME

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

Description

[Asif Youssuff]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:58.0) Gecko/20100101 Firefox/58.0
Build ID: 20171020100426

Steps to reproduce:

turn on gfx.webrender.enabled
turn on gfx.webrendest.enabled
turn on gfx.webrender.layers-free
turn on gfx.webrender.blob-images
turn on layers.acceleration.force-enabled

1. Navigate to http://www.cpu-monkey.com/en/compare_cpu-intel_core_i5_2500k-5-vs-intel_pentium_g4600-700
2. Scroll down page


Actual results:

Very slow scrolling. 


Expected results:

Scrolling down page should be as fast or faster than with WebRender off.

Comment 1

[Darkspirit]

Nightly 58 x64 20171020100426 de_DE @ Debian Testing (KDE, Radeon RX480).
main profile:  layers force accel + webrender + webrendest + blob-image + gpu process + omtp + uBlock & basic TP
fresh profile: layers force accel + webrender + webrendest + blob-image

I can't reproduce in both profiles. Pos1/End, scrolling by mousewheel (and autoscrolling in my main profile) are fast as without WebRender.

Comment 2

[Asif Youssuff]

Attachment: about-support-webrender.txt

Perhaps it is driver or hardware related? My GPU is not as good as yours. Attached about:support details.

Comment 4

[Darkspirit]

(There was no patch and you haven't found an exact fix range.)