I had some success by opening up CompizConfig Settings Manager (Alt+F2, ccsm assuming you have it installed.) and enabling "copy to texture" I noticed the CPU usage on my machine dropped from a hard 10% to about 2% even with programs open. I still find it odd that compiz's CPU usage spikes when I drag windows or sometimes when I have smooth animations in windows despite having the fglrx drivers installed, since it's supposed to be hardware accelerated. Leads me to believe that something is causing it to do more work than it should on the software side.
-- You received this bug notification because you are a member of Tieto, which is subscribed to the bug report. https://bugs.launchpad.net/bugs/803943 Title: compiz consuming a lot of cpu Status in Compiz: Confirmed Status in Compiz Core: Confirmed Status in Unity: Confirmed Status in “compiz” package in Ubuntu: Confirmed Status in “unity” package in Ubuntu: Confirmed Bug description: 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) To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/803943/+subscriptions -- Mailing list: https://launchpad.net/~tieto Post to : [email protected] Unsubscribe : https://launchpad.net/~tieto More help : https://help.launchpad.net/ListHelp
