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Issue 782574 link

Starred by 6 users

Issue metadata

Status: Duplicate
Merged: issue 664253
Owner: ----
Closed: Jan 21
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux , Windows , Mac
Pri: 2
Type: Bug



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Unnecessary CPU usage for animations that are not displayed

Reported by w.fi...@gmail.com, Nov 8 2017

Issue description

UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.89 Safari/537.36

Steps to reproduce the problem:
1. Open the attached page
2. Open the Chrome task manager

What is the expected behavior?
In the task manager there must be 0% CPU usage, while the page and the animations are active.

What went wrong?
On my PC the CPU usage is 17%. Switching to another tab or turning off the animation makes it 0%.

Did this work before? No 

Does this work in other browsers? No

Chrome version: 62.0.3202.89  Channel: stable
OS Version: 10.0
Flash Version: 

Also, I have a case where removing the <path>'s "d" attribute does not nullify the CPU usage.
 
excessive_animations.html
20.9 KB View Download

Comment 1 by shend@chromium.org, Nov 8 2017

Labels: Needs-Bisect
Status: Untriaged (was: Unconfirmed)
Confirmed on 64.0.3260.2 (Official Build) dev (64-bit). CPU usage is around 50% for me, but goes to 0% when I switch tabs. Requesting bisect to see if it's a regression.
Labels: Needs-Triage-M62

Comment 3 by w.fi...@gmail.com, Nov 9 2017

Here is the case with <path>:
https://jsfiddle.net/djgndbqy/
Cc: susanjuniab@chromium.org
Labels: -Needs-Bisect M-64 OS-Linux OS-Mac
w.filaa@ Thank you for the issue.

Able to reproduce the issue on Windows 7,10, Mac OS 10.12.6 and Ubuntu 14.04 using the latest Stable 62.0.3202.89 and Canary 64.0.3262.0.
On opening the given Html page and jsfiddle on Chrome, could observe that the CPU usage is increasing and it is not 0. On switching to another tab other than these two brings the CPU usage to 0.
Attached is the screen cast for reference.
This is a Non-Regression issue as this issue is observed from M50 chrome builds.

Requesting Dev to please look into this issue.

Thanks.

782574.webm
4.4 MB View Download

Comment 5 by gracec@chromium.org, Nov 10 2017

Status: Available (was: Untriaged)

Comment 6 by gracec@chromium.org, Nov 10 2017

Labels: Performance

Comment 7 by gracec@chromium.org, Nov 10 2017

Labels: Update-Quarterly

Comment 8 by w.fi...@gmail.com, Nov 10 2017

Here's my similar issue in firefox, if it's useful
https://bugzilla.mozilla.org/show_bug.cgi?id=1415818

Comment 9 by benhenry@google.com, Jan 18 2018

Labels: -Performance Performance-Responsiveness Performance-Power Needs-Investigation
Project Member

Comment 10 by sheriffbot@chromium.org, Jan 18 (5 days ago)

Labels: Hotlist-Recharge-Cold
Status: Untriaged (was: Available)
This issue has been Available for over a year. If it's no longer important or seems unlikely to be fixed, please consider closing it out. If it is important, please re-triage the issue.

Sorry for the inconvenience if the bug really should have been left as Available.

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

Comment 11 by yigu@chromium.org, Jan 21 (2 days ago)

Mergedinto: 664253
Status: Duplicate (was: Untriaged)

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