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Issue 765970 link

Starred by 1 user

Issue metadata

Status: WontFix
Owner: ----
Closed: Apr 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Windows
Pri: 2
Type: Bug-Regression



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resize events infinite loops / very hi cpu usage / lagy map zoom

Reported by msstrash...@gmail.com, Sep 17 2017

Issue description

UserAgent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36

Steps to reproduce the problem:
1. open this url http://85.185.161.203:8057/map/
2. try to zoom in map 

What is the expected behavior?
No lag / low cpu usage after release the mouse.

What went wrong?
It seams a infinite loop happens in resize events while there is no change in window size.  

Did this work before? Yes 60.0.3112.113 

Chrome version: 61.0.3163.91  Channel: stable
OS Version: 6.1 (Windows 7, Windows Server 2008 R2)
Flash Version: Shockwave Flash 27.0 r0
 
Labels: Needs-Bisect Needs-Triage-M61
Cc: krajshree@chromium.org
Labels: Needs-Feedback
Tested the issue on Win-7 and Win-10 using chrome reported version #61.0.3163.91 and  latest canary #63.0.3218.0.

Observed more CPU usage i.e up to 35 to 50% after navigating to http://85.185.161.203:8057/map/ and zooming in map using latest canary #63.0.3218.0.
Whereas CPU usage was less using chrome reported version #61.0.3163.91 i.e 9 to 12%(same as in chrome version #60.0.3112.113 )after following steps as per comment #0.

Attached screen casts for reference.

msstrashbin@ - Could you please verify the screen casts and please let us know what is the issue exactly. A screen cast will be more helpful rather.

Thanks...!!
765970_63.0.3218.0.mp4
16.0 MB Download
765970@61.0.3163.91.mp4
13.4 MB View Download
Thanks for your reply exist in chrome 61 not upper versions It's solved in version 63 and you test that anyway thanks for your time.
Project Member

Comment 4 by sheriffbot@chromium.org, Sep 25 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
Components: UI>Browser>Zoom
Labels: Needs-Feedback
Able to reproduce the issue on Win-7 and Win-10 using latest canary #63.0.3223.8. Observed that the CPU usage increased to 80% when the map at URL: http://85.185.161.203:8057/map/ was zoomed in or out.

Whereas unable to reproduce the issue on Win-7 and Win-10 using latest stable #61.0.3163.100. Observed that the CPU usage remained below 10% as expected when the map at URL: http://85.185.161.203:8057/map/ was zoomed in or out.

msstrashbin@ - Could you please check the issue using latest stable #61.0.3163.100 and please let us know if the issue persists or not.
Please verify the screen casts attached at comment #2 and please let us know the exact issue faced by you. 
TE observations are contradicting with the statement in comment #3. As per comment #3, issue is said to be solved in version 63, whereas issue is still present in latest canary #63.0.3223.8. 
Please confirm the same.

Thanks...!!
Components: -UI>Browser>Zoom -Blink Blink>Canvas
Removing Browser Zoom label as this isn't browser zoom.

Adding Blink>Canvas as >50% of the time on each frame draw is consumed by:
Canvas2DLayerBridge::flushRecording from looking at a trace.

Comment 7 by ajha@chromium.org, Apr 17 2018

Labels: -Needs-Bisect

Comment 8 by junov@chromium.org, Apr 24 2018

Status: WontFix (was: Unconfirmed)
Closing isuue due to lack of feedback on comment #5 and repro page is no longer available.

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