[Bug 1698282] Re: Totem uses dramatically higher CPU than any other video player

[Launchpad Bug Tracker]

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 <jbicha at debian.org>  Mon, 09 Oct 2017 21:50:47 -0400

** Changed in: clutter-gtk (Ubuntu)
       Status: Fix Committed => Fix Released

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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)

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