Gnome-shell has very high CPU usage while extension 'system-monitor' is installed

1. Please try uninstalling '<email address hidden>'. Just disabling extensions often doesn't get rid of their overhead.

2. The most likely explanation I can think of is:
   https://bugzilla.gnome.org/show_bug.cgi?id=781835
   which is already fixed in Ubuntu 19.10, so please try that when/if you can afford a little prerelease risk:
   http://cdimage.ubuntu.com/daily-live/current/

3. Another possible explanation is:
   https://gitlab.gnome.org/GNOME/mutter/merge_requests/189
   which will soon be fixed in 19.10 after mutter reaches version 3.33.92 or higher.

Manually removing '<email address hidden>' folder found in
~/.local/share/gnome-shell/extensions/ remedied the problem. In other
words, uninstalling the extension manually and rebooting lowered
gnome-shell cpu usage down to less than 5% on idle. Thanks

On Mon, Sep 2, 2019 at 10:35 PM Daniel van Vugt <
<email address hidden>> wrote:

> 1. Please try uninstalling '<email address hidden>'.
> Just disabling extensions often doesn't get rid of their overhead.
>
> 2. The most likely explanation I can think of is:
> https://bugzilla.gnome.org/show_bug.cgi?id=781835
> which is already fixed in Ubuntu 19.10, so please try that when/if you
> can afford a little prerelease risk:
> http://cdimage.ubuntu.com/daily-live/current/
>
> 3. Another possible explanation is:
> https://gitlab.gnome.org/GNOME/mutter/merge_requests/189
> which will soon be fixed in 19.10 after mutter reaches version 3.33.92
> or higher.
>
> ** Bug watch added: bugzilla.gnome.org/ #781835
> https://bugzilla.gnome.org/show_bug.cgi?id=781835
>
> ** Changed in: gnome-shell (Ubuntu)
> Status: New => Incomplete
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1842369
>
> Title:
> Gnome-shell hogs CPU
>
> Status in gnome-shell package in Ubuntu:
> Incomplete
>
> Bug description:
> Gnome-shell process spikes from 40-100% CPU usage on a 4-core
> processor without any extensions enabled upon start-up and just stays
> in that range. Usage fluctuates between all of the cores (Each core is
> pegged at >40% all the time).
>
> I am running Ubuntu 19.04.
>
> gnome-shell:
> Installed: 3.32.2-2ubuntu1~ubuntu19.04.1
> Candidate: 3.32.2-2ubuntu1~ubuntu19.04.1
> Version table:
> *** 3.32.2-2ubuntu1~ubuntu19.04.1 500
> 500 http://us.archive.ubuntu.com/ubuntu disco-updates/main
> amd64 Packages
> 100 /var/lib/dpkg/status
> 3.32.0+git20190410-1ubuntu1 500
> 500 http://us.archive.ubuntu.com/ubuntu disco/main amd64
> Packages
>
> ProblemType: Bug
> DistroRelease: Ubuntu 19.04
> Package: gnome-shell 3.32.2-2ubuntu1~ubuntu19.04.1
> ProcVersionSignature: Ubuntu 5.0.0-25.26-generic 5.0.18
> Uname: Linux 5.0.0-25-generic x86_64
> NonfreeKernelModules: nvidia_modeset nvidia
> ApportVersion: 2.20.10-0ubuntu27.1
> Architecture: amd64
> CurrentDesktop: ubuntu:GNOME
> Date: Mon Sep 2 22:03:01 2019
> DisplayManager: gdm3
> InstallationDate: Installed on 2018-05-15 (475 days ago)
> InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64
> (20180426)
> ProcEnviron:
> TERM=xterm-256color
> PATH=(custom, no user)
> XDG_RUNTIME_DIR=<set>
> LANG=en_US.UTF-8
> SHELL=/bin/bash
> RelatedPackageVersions: mutter-common 3.32.2+git20190711-2ubuntu1~19.04.1
> SourcePackage: gnome-shell
> UpgradeStatus: No upgrade log present (probably fresh install)
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1842369/+subscriptions
>

Status changed to 'Confirmed' because the bug affects multiple users.