The fix is also coming for bionic: https://gitlab.gnome.org/GNOME/gjs/commit/8f8276353bf51ac19e6e587ae7d1f69e48310739
-- 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: Triaged Status in gjs source package in Cosmic: Fix Committed 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. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gjs/+bug/1803271/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp