This bug was fixed in the package clutter-gtk - 1.8.4-2 --------------- clutter-gtk (1.8.4-2) unstable; urgency=medium
[ Daniel van Vugt ] * Fix high CPU usage (particularly in Wayland sessions) when clutter redraws. Hardware redraws of the clutter stage were unexpectedly triggering software redraws of the backing window and its decorations. On _every_ frame. This halves the CPU usage of totem and gnome-maps. (LP: #1698282) -- Jeremy Bicha <jbi...@debian.org> Mon, 09 Oct 2017 21:50:47 -0400 ** Changed in: clutter-gtk (Ubuntu) Status: Fix Committed => Fix Released -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to clutter-gtk in Ubuntu. https://bugs.launchpad.net/bugs/1698282 Title: Totem uses dramatically higher CPU than any other video player Status in Clutter GTK: Confirmed Status in Gstreamer1.0: Fix Released Status in clutter-1.0 package in Ubuntu: Confirmed Status in clutter-gst-3.0 package in Ubuntu: Confirmed Status in clutter-gtk package in Ubuntu: Fix Released Status in totem package in Ubuntu: Fix Released Bug description: Totem uses dramatically higher CPU than any other video player. Example 1: software playback under Gnome Shell Wayland: totem: 120% (but drops to 80% in Unity7) mplayer: 40% vlc: 40% [all are using ffmpeg for decoding] Example 2: hardware-accelerated playback under Gnome Shell Xorg: totem: 11% gst-play-1.0: 3% [both are using gstreamer-vaapi for decoding] Since the decoding libraries are theoretically the same it sounds like totem's performance problems might be in its rendering path. ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: libgstreamer1.0-0 1.12.0-2 ProcVersionSignature: Ubuntu 4.10.0-22.24-generic 4.10.15 Uname: Linux 4.10.0-22-generic x86_64 ApportVersion: 2.20.5-0ubuntu4 Architecture: amd64 Date: Fri Jun 16 12:57:11 2017 InstallationDate: Installed on 2017-05-03 (44 days ago) InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170502) LogAlsaMixer: Error: command ['/usr/bin/amixer'] failed with exit code 1: amixer: Mixer attach default error: No such file or directory SourcePackage: gstreamer1.0 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/clutter-gtk/+bug/1698282/+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