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Issue 850808 link

Starred by 1 user
Status: Duplicate
Merged: issue 739782
Owner: ----
Closed: Jun 2018
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EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 3
Type: Bug



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Activity monitor shows Google Chrome Helper at 100% CPU when Task Manager shows no tabs at 100% CPU

Project Member Reported by rdsmith@chromium.org, Jun 8 2018 
Chrome Version: 67.0.3396.62 (Official Build) (64-bit)
OS: Mac OS X 10.13.4 (17E202)

A couple of times recently I've had instances where Mac OS X Activity monitor shows that a Google Chrome Helper process is consuming 100% of the CPU, but that's not visible in the Task Manager.  (See the attached screenshot.)

I suspect the cause of the 100% cpu is  issue 848210 , but this bug is about the Activity Monitor/Task Manager mismatch.
Screen Shot 2018-06-07 at 9.42.27 PM.png
518 KB View Download

Comment 1 by creis@chromium.org, Jun 8 2018

Mergedinto: 739782
Status: Duplicate (was: Untriaged)
Thanks for the report.  This is because the Chrome task manager only shows things it knows how to track.  There's a bug on file for showing everything: issue 739782.  (For example, if this case was a ServiceWorker process like issue 810633, then fixing issue 716609 would solve it.)

For now, you can run Chrome with --task-manager-show-extra-renderers to show a "Renderer:" line for unknown processes like this.
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