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Thread: High cpu usage

  1. #1
    Join Date
    Aug 2012
    Beans
    13

    High cpu usage

    This problem started after I resized my Wubi partition. After rebooting, my cpu usage monitor showed that I was constantly using about 50% of my cpu, even with no programs running. Usually with nothing running, it doesn't show more than about 10% cpu usage. This was just after start up. I opened system monitor and looked for programs that were using more cpu than normal, but there were non. It just seemed that everything was running normally, but an extra 50% cpu usage was added on with no programs being responsible.
    I am not sure how to properly insert an image (maybe I have to upload it to an image hosting site first) but system monitor showed that CPU1 was using ~100% while CPU2 was using `10%, and after a short while, they would switch. I assumed that that represented the individual cores, as my computer is a dual core. Is this some sort of virus, or is something malfunctioning? Nothing else seems to be out of the ordinary.

  2. #2
    Join Date
    May 2009
    Location
    Courtenay, BC, Canada
    Beans
    1,583

    Re: High cpu usage

    Code:
    top
    is a great resource for determining CPU usage (among other things)

    or, if you want something easier to see, use
    Code:
    sudo apt-get install htop
    htop

  3. #3
    Join Date
    Aug 2012
    Beans
    13

    Re: High cpu usage

    I ran htop and the cpu is being used by root and the command is /usr/sbin/cupsd -F.

    I really need this fixed. Everything is running really slow.

  4. #4
    Join Date
    Mar 2009
    Beans
    Hidden!

    Re: High cpu usage

    One sure way would be to reinstall afresh, by the way.

  5. #5
    Join Date
    Aug 2012
    Beans
    13

    Re: High cpu usage

    I have been trying to avoid a fresh install. I would like to get this fixed.

  6. #6
    Join Date
    Dec 2008
    Location
    Duluth, GA
    Beans
    124
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: High cpu usage

    Did you recently try to print anything? If so, delete any pending print jobs.

    Otherwise, find the PID number of cupsd with htop and
    kill -9 PIDNUM

  7. #7
    Join Date
    May 2009
    Location
    Courtenay, BC, Canada
    Beans
    1,583

    Re: High cpu usage

    well, CUPS is the main Unix printing service, so it's odd that it's using so much CPU. I'd check out what it's doing at http://localhost:631

  8. #8
    Join Date
    Aug 2012
    Beans
    13

    Re: High cpu usage

    There are now two programs taking up my cpu and when I try to kill them with that command, I get this message:
    Code:
    sebastian@ubuntu:~$ kill -9 1014
    bash: kill: (1014) - Operation not permitted
    sebastian@ubuntu:~$ kill -9 4149
    bash: kill: (4149) - Operation not permitted
    Edit: That second program disappeared.
    Last edited by potatoos; October 9th, 2012 at 02:07 PM.

  9. #9
    Join Date
    Aug 2012
    Beans
    13

    Re: High cpu usage

    I put "sudo" in front of that kill command and it killed the process, but then a new one showed up, the only difference being that it has a new PID.
    Last edited by potatoos; October 9th, 2012 at 01:59 PM.

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