Results 1 to 6 of 6

Thread: Compiz uses a lot of CPU when there is an unresponsive window

  1. #1
    Join Date
    Jul 2010
    Location
    /run/shm
    Beans
    825
    Distro
    Ubuntu 12.10 Quantal Quetzal

    Question Compiz uses a lot of CPU when there is an unresponsive window

    Yesterday I installed Raring on my netbook and for some reason, whenever there is any unresponsive window, the cpu usage raises to 50%-80%. Not sure if this is Raring specific as I haven't got a chance to test this on my desktop running Quantal. Beside decreasing the icon size of Unity icons, no tweaks related to Compiz or Unity were made.
    So, anyone else experiencing this?
    Quote Originally Posted by Linus Torvalds
    "Most good programmers do programming not because they expect to get paid or get adulation by the public, but because it is fun to program."

  2. #2
    Join Date
    Jun 2010
    Location
    London, England
    Beans
    7,521
    Distro
    Ubuntu Development Release

    Re: Compiz uses a lot of CPU when there is an unresponsive window

    How do you know that the issue is with Compiz. When I open a 600+ page Libreoffice Writer doc, the window greys out. But running Top shows that Compiz does not go above 3% CPU usage and 7% memory usage (out of 1GB). whereas soffice.bin is using 99% CPU. Compiz soon drops CPU and Memory usage even lower.

    There has been much improvement in regard to memory usage in 13.04 due to the work done on Ubuntu phone. But, no, I do not see Compiz eating the CPU.

    Regards.
    It is a machine. It is more stupid than we are. It will not stop us from doing stupid things.
    Ubuntu user #33,200. Linux user #530,530


  3. #3
    Join Date
    Jul 2010
    Location
    /run/shm
    Beans
    825
    Distro
    Ubuntu 12.10 Quantal Quetzal

    Re: Compiz uses a lot of CPU when there is an unresponsive window

    Exactly that way, I used top and the Compiz line showed above 50% usage. I'll try to get something to hang up to get a screenshot.
    EDIT: Told Skype to load the whole history of a group chat (It contains a TON of messages). Before the window got greyed out, compiz was bellow 10%, after it greyed out, it raised to 70%-90%.

    Note: In that screenshot it's Skype that became unresponsive (Well... Was forced to become unresponsive) but it happens with every window that becomes unresponsive, like Chrome, Synaptic, Empathy, even a Terminal if there is a lot of stuff running.
    Last edited by Lisiano; February 27th, 2013 at 08:09 PM.
    Quote Originally Posted by Linus Torvalds
    "Most good programmers do programming not because they expect to get paid or get adulation by the public, but because it is fun to program."

  4. #4
    Join Date
    Oct 2009
    Location
    Gastonia, NC
    Beans
    174
    Distro
    Ubuntu Development Release

    Re: Compiz uses a lot of CPU when there is an unresponsive window

    The top usage is showing 97 for skype and 87 for compiz. This is over 100% ?????????

  5. #5
    Join Date
    Mar 2006
    Location
    Williams Lake
    Beans
    Hidden!
    Distro
    Ubuntu Development Release

    Re: Compiz uses a lot of CPU when there is an unresponsive window

    Depending on how many cores your cpu has, usage will show for each individual core.
    Last edited by cariboo907; February 28th, 2013 at 03:46 AM.

  6. #6
    Join Date
    Nov 2004
    Location
    Toronto, ON
    Beans
    139
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Compiz uses a lot of CPU when there is an unresponsive window

    This was pretty dire when there's a single core (my Celeron 900 netbook). The past couple of days' updates seem to have fixed it.
    /Guy

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •