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Issue 864758 link

Starred by 1 user
Status: WontFix
Owner: ----
Closed: Nov 21
Cc:
viswa.karala@chromium.org
susan.boorgula@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: Windows
Pri: 2
Type: Bug



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Last few versions are unbearably slow

Reported by alex.sav...@gmail.com, Jul 17 
UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3493.0 Safari/537.36

Steps to reproduce the problem:
The rendering threading model is completely broken in the last few versions. Whenever I open up new tabs with lots of content to render, it freezes up the entire process.

What is the expected behavior?

What went wrong?
Rendering a webpage is done on the same thread as what's used to switch tabs and general make the browser feel responsive.

Did this work before? N/A 

Chrome version: 69.0.3493.0  Channel: n/a
OS Version: 10.0
Flash Version: Shockwave Flash 30.0 r0

Comment 1 by alex.sav...@gmail.com, Jul 17 

How can I collect a CPU profiling for you guys to look at?

Comment 2 by vamshi.kommuri@chromium.org, Jul 18

Labels: Needs-Triage-M69

Comment 3 by woxxom@gmail.com, Jul 18 

See https://www.chromium.org/developers/how-tos/trace-event-profiling-tool/recording-tracing-runs
Also check the chrome://version page - maybe you're running the dcheck/debug build. 
I don't know of you can opt out of this like we could with SyzyASan canary.

Comment 4 by susan.boorgula@chromium.org, Jul 18

Cc: susan.boorgula@chromium.org
Labels: Needs-Feedback
woxxom@ Thanks for the update.

alex.saveau@ Request you to check the link provided in comment #3 and provide the CPU profiling.
Hence adding 'Needs-Feedback' label.

Thanks..

Comment 5 by alex.sav...@gmail.com, Jul 18 

Here you go.
trace_perf.json.gz
14.6 MB Download
Project Member

Comment 6 by sheriffbot@chromium.org, Jul 18

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

Comment 7 by krajshree@chromium.org, Jul 20

Components: Platform>DevTools>Memory
Labels: Triaged-ET TE-NeedsTriageHelp
As in comment #5, a .json file has been provided which won't be possible to triage from TE-end. Hence, requesting someone from Platform>DevTools>Memory to please help us in further triaging of the issue. Hence, adding TE-NeedsTriageHelp for further investigation from dev team.

Thanks...!!

Comment 8 by caseq@google.com, Jul 26

Components: -Platform>DevTools>Memory

Comment 9 by alex.sav...@gmail.com, Oct 9 

This was fixed at some point: switching tabs is lightning fast again.

Comment 10 by viswa.karala@chromium.org, Nov 21

Cc: viswa.karala@chromium.org
Labels: Hotlist-DesktopUIChecked
Status: WontFix (was: Unconfirmed)
***UI Mass Triage***

Closing this issue as per c#9 & assuming the issue may be fixed since there is no activity.If you feel this issue should still be addressed, please feel free to reopen it or file a new issue.

Thanks!
►

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