You have been subscribed to a public bug by Ove Risberg (ove-risberg):
This problem is exclusive to unity (when running compiz with gnome-
panel, this doesn't happen).
1. Close all windows opened, if any
2. Open a terminal and run 'top'
3. Notice that compiz is consuming a lot of CPU time (although there is nothing
special running). In my case, it's consuming about 13% when idle.
4. Unmaximize the terminal window, if maximized, and start moving the window
slowly
5. Notice that compiz is now consuming much more CPU than before (in my case,
arround 50%).
6. Open a video.
7. Notice that compiz consume much more CPU than idle (about 25% in my case),
although I'm not doing anything related to window management.
8. (optional) Install the gnome-panel package and choose "GNOME classic" in
login screen. Start compiz with "compiz --replace" and follow the steps from 1
to 7. Notice that the CPU consuming is much lower (in my case, 1% when idle,
25% when moving the window and 9% with the video).
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: unity 4.0.1-0ubuntu2 [modified: usr/bin/unity-preferences
usr/share/applications/unity-preferences.desktop]
ProcVersionSignature: Ubuntu 3.0-2.3-generic 3.0.0-rc4
Uname: Linux 3.0-2-generic i686
Architecture: i386
CompizPlugins:
[core,bailer,detection,composite,opengl,compiztoolbox,decor,vpswitch,imgpng,resize,snap,grid,regex,move,gnomecompat,mousepoll,animation,unitydialog,wall,workarounds,place,expo,ezoom,session,staticswitcher,fade,scale]
Date: Thu Jun 30 11:54:20 2011
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha i386 (20110610)
ProcEnviron:
LANGUAGE=pt_BR:en
LANG=pt_BR.UTF-8
SHELL=/bin/bash
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: compiz
Importance: Medium
Assignee: Daniel van Vugt (vanvugt)
Status: Confirmed
** Affects: compiz-core
Importance: Medium
Assignee: Daniel van Vugt (vanvugt)
Status: Confirmed
** Affects: unity
Importance: Medium
Assignee: Daniel van Vugt (vanvugt)
Status: Confirmed
** Affects: compiz (Ubuntu)
Importance: Medium
Assignee: Daniel van Vugt (vanvugt)
Status: Confirmed
** Affects: unity (Ubuntu)
Importance: Medium
Assignee: Daniel van Vugt (vanvugt)
Status: Confirmed
** Tags: apport-bug i386 oneiric unity-2d
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compiz consuming a lot of cpu
https://bugs.launchpad.net/bugs/803943
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