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Issue 752818 link

Starred by 1 user
Status: Assigned
Owner:
ericrk@chromium.org
Cc:
█ krajshree@chromium.org
█ hdodda@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: Windows
Pri: 2
Type: Bug



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slow scroll (low FPS) when fixed element are rendered

Reported by costacur...@gmail.com, Aug 6 2017 
UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.90 Safari/537.36

Steps to reproduce the problem:
1. open the next link, where I coded a reduced test case: https://jsfiddle.net/nery89/wpz1bmjn/6/
2. try scroll the result
3. click on "toggle ISSUE" to see the correct behavior.

What is the expected behavior?
scroll should run smoothly.

What went wrong?
scroll is very slow and there's a consistent FPS drop. Inspector "Performance" reveal 90% rendering issue

Did this work before? No 

Does this work in other browsers? Yes

Chrome version: 60.0.3112.90  Channel: stable
OS Version: 10.0
Flash Version:

Comment 1 by krajshree@chromium.org, Aug 7 2017

Cc: krajshree@chromium.org
Labels: Needs-Feedback
Unable to reproduce the issue on Win-10 using chrome reported version #60.0.3112.90 and latest canary #62.0.3178.0.

Attached a screen cast for reference.

Following are the steps followed to reproduce the issue.
------------
1. Opened the URL: https://jsfiddle.net/nery89/wpz1bmjn/6/
2. Scrolled the result.
3. Observed that the scroll ran smoothly without any issues as per expected.

Note: Same behavior is observed in firefox also.

costacurta.nereo@ - Could you please check the screen cast and please let us know if anything missed from our side. Also please check this issue on latest canary #62.0.3178.0 by creating a new profile without any apps and extensions and please let us know if the issue still persist or not.

Thanks...!!
752818.mp4
2.6 MB View Download

Comment 2 by krajshree@chromium.org, Aug 7 2017

Labels: Needs-Triage-M60

Comment 3 by costacur...@gmail.com, Aug 7 2017 

Hello @krajshree, I posted the video from what I see. The issue is there, how can I give ou more information obout? Maybe my laptop specification?

https://drive.google.com/file/d/0BxJ170wvQlf2a3l3SUdhZnhpS2M/view

(sorry for low quality video)
Project Member

Comment 4 by sheriffbot@chromium.org, Aug 7 2017

Labels: -Needs-Feedback
Thank you for providing more feedback. Adding requester "krajshree@chromium.org" to the cc list and removing "Needs-Feedback" label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

Comment 5 by costacur...@gmail.com, Aug 7 2017 

Here's my computer specs (see attached files). Uploaded the original resolution video too.
ACER System Information 08-07-2017 18-01-07.txt
712 KB View Download
NVIDIA System Information 08-07-2017 18-01-07.txt
3.7 KB View Download
Aug 7, 2017 5-36 PM.webm
4.6 MB View Download

Comment 6 by hdodda@chromium.org, Aug 9 2017

Cc: hdodda@chromium.org
Components: Internals>GPU
Unable to reproduce the issue on windows 10 desktop and laptop both using chrome M60 #60.0.3112.90 and M62 #62.0.3180.0 .

@Could someone from gpu team look into this , as it might be specific to the gpu drivers.

Thanks!

Comment 7 by e...@chromium.org, Aug 9 2017

Components: -Blink>Layout
Over to GPU as per comment 6.

Comment 8 by ericrk@chromium.org, Aug 17 2017

Owner: ericrk@chromium.org
Status: Assigned (was: Unconfirmed)
I'll take a trace and re-assign.

Comment 9 by benhenry@chromium.org, Nov 3 2017

Labels: Performance-Loading
Ping. Eric - any luck on taking a trace?
►

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