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Issue 816288 link

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Issue metadata

Status: Archived
Owner: ----
Closed: Nov 23
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Windows
Pri: 3
Type: Bug



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Performance issues with Twitter

Reported by furdieju...@gmail.com, Feb 25 2018

Issue description

Chrome Version       : 64.0.3282.167
OS Version: 10.0
URLs (if applicable) : https://twitter.com/
Other browsers tested:
  Add OK or FAIL after other browsers where you have tested this issue:
     Safari:
    Firefox: OK
    IE/Edge:

What steps will reproduce the problem?
1. Open a twitter tab
2. Leave it open for a while
3. Sometimes it only happens when you view a tweet with a fair amount of replies

What is the expected result?
Twitter runs smoothly without jankiness, juddery transitions and freezing

What happens instead of that?
Twitter starts behaving very slow and laggy, often stopping for upwards of a second

Please provide any additional information below. Attach a screenshot if
possible.

IMO relevant, i.e DOM-touching extensions: uBlock Origin, Vimium++, Google Translate

I ran the performance analyser in the devtools and and ran it for around 20 seconds while it was showing this behaviour. Chrome was spending 16 seconds (!!) inside the Update Layer Tree procedure.

I've never experienced this happening on my laptop (Ubuntu 17.10, Chromium 64.0.3282.167, ThinkPad X220 Core i5-2520M) or Firefox 58 on this computer (which has a AMD Ryzen 5 1600 and a Radeon RX 480).

UserAgentString: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.167 Safari/537.36
 
Labels: Needs-Triage-M64
Cc: susan.boorgula@chromium.org
Components: UI
Labels: Triaged-ET Needs-Feedback
furdiejungs@ Thanks for the issue.

Tested this issue on Windows 10 and Mac OS 10.13.3 on the reported version 64.0.3282.167, latest Stable 64.0.3282.186 and Canary 66.0.3357.0 and unable to reproduce the issue by following the steps given above.

On browsing through feed in twitter.com, cannot observe any lag or issues. Can scroll smoothly through a post having many replies as well.
Attached is the screen cast for reference.

Request you to please check and confirm if anything is missed from our end in triaging the issue.

Also request you to update chrome to the latest version,retry the issue on a new chrome profile without any flags/extensions and update the thread with the observations.

Thanks...
816288.mp4
5.4 MB View Download
I'll admit I haven't seen this behaviour manifesting itself since I reported it. I've only just figured out you can export profiles from the Performance tab. Next time it happens I'll try and record it. Thanks anyway
Project Member

Comment 4 by sheriffbot@chromium.org, Mar 1 2018

Labels: -Needs-Feedback
Thank you for providing more feedback. Adding the requester to the cc list.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
Happened again playing a video with lots of replies having scrolled down a bit down my timeline. The summary says that disabling uBlock Origin on Twitter speeded it up a bit which was noticeable. The performance profiles are too large to upload on here, should I email them to you Susan?
Cc: sindhu.chelamcherla@chromium.org
Labels: Needs-Feedback
Re-checked the issue on reported version 64.0.3282.167 using Windows 10 with steps mentioned above and issue is not reproducible.

@Reporter: Can you please provide URL of issue where you are seeing this, also please check the issue on latest stable 65.0.3325.181. Per comment#5 please paste those performance files, zip it and attach here for further investigation from dev team.

Thanks!
Labels: Hotlist-DesktopUIChecked
Status: Archived (was: Unconfirmed)
*** Mass UI Triage *** 

We were unable to find repro steps for this bug. If you have more data to
reproduce this bug or have clear repro steps, please reopen or file a new issue.
Thanks!

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