Hello Daniel, or anyone else affected,

Accepted gjs into bionic-proposed. The package will build now and be
available at
https://launchpad.net/ubuntu/+source/gjs/1.52.5-0ubuntu18.04.1 in a few
hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested and change the tag from
verification-needed-bionic to verification-done-bionic. If it does not
fix the bug for you, please add a comment stating that, and change the
tag to verification-failed-bionic. In either case, without details of
your testing we will not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

** Changed in: gjs (Ubuntu Bionic)
       Status: In Progress => Fix Committed

** Tags added: verification-needed verification-needed-bionic

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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to gjs in Ubuntu.
https://bugs.launchpad.net/bugs/1803271

Title:
  [regression] Much higher CPU during some gnome-shell operations

Status in gjs package in Ubuntu:
  Fix Released
Status in gjs source package in Bionic:
  Fix Committed
Status in gjs source package in Cosmic:
  Fix Released

Bug description:
  [Impact]

  Since fixing bug 1672297 in release 18.04 we experience much higher (almost 
double) CPU usage during gnome-shell JavaScript operations, such as the icon 
spring animation [1]. Even just moving the mouse is a little more expensive now 
[2].
  [1] https://gitlab.gnome.org/GNOME/gnome-shell/issues/349
  [2] https://gitlab.gnome.org/GNOME/mutter/issues/283

  [Test Case]

  Use 'top' to measure the CPU usage of the gnome-shell process while
  tapping Super+A repeatedly. It should be much lower with the fix than
  without.

  [Regression Potential]

  Low. This particular fix is tiny
  (https://gitlab.gnome.org/GNOME/gjs/merge_requests/236) and has been
  released and used in a couple of upstream gjs versions already without
  issue.

  [Other Info]

  The fix is already released to 19.04 as part of gjs version 1.54.2-1.
  And already released to 18.10 as part of gjs version
  1.54.3-1~ubuntu18.10.1.

To manage notifications about this bug go to:
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