Thanks. I agree 11% CPU feels too high, but at the same time gnome-shell
is quite non-trivial and not a lightweight shell.
It would be nice if someone could reduce the CPU usage but I don't see
the problem as being so severe that everyone would agree it's a bug, or
that it would be easy to improve.
** Changed in: gnome-shell (Ubuntu)
Importance: Undecided => Low
** Changed in: gnome-shell (Ubuntu)
Status: Incomplete => Opinion
** Summary changed:
- Playing YouTube in Firefox increase gnome-shell CPU usage
+ Playing YouTube in Firefox increase gnome-shell CPU usage to 10-15%
** Tags added: performance
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https://bugs.launchpad.net/bugs/2120349
Title:
Playing YouTube in Firefox increase gnome-shell CPU usage to 10-15%
Status in GNOME Shell:
New
Status in gnome-shell package in Ubuntu:
Opinion
Bug description:
During normal work load on gnome-shell, it's CPU usage is less than 1%.
But while playing a YouTube video in Firefox, usage jump to 10-15% and causes
the fan to spin loud.
Distro: Ubuntu 25.04
Gnome-shell: 48.0
Firefox: 141.0.3 (snap)
"HARDWARE_VIDEO_DECODING" default available
The CPU is Intel i7-1165G7.
https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/8591#note_2519468
ProblemType: Bug
DistroRelease: Ubuntu 25.04
Package: gnome-shell 48.0-1ubuntu1
ProcVersionSignature: Ubuntu 6.14.0-27.27-generic 6.14.6
Uname: Linux 6.14.0-27-generic x86_64
ApportVersion: 2.32.0-0ubuntu5.3
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Tue Aug 12 05:02:52 2025
DisplayManager: gdm3
InstallationDate: Installed on 2025-05-18 (85 days ago)
InstallationMedia: Ubuntu 25.04 "Plucky Puffin" - Release amd64 (20250415.3)
RelatedPackageVersions: mutter-common 48.1-1ubuntu3.1
SourcePackage: gnome-shell
UpgradeStatus: No upgrade log present (probably fresh install)
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