[Bug 531310] Re: Top showing 9999% CPU usage
It seems that the bug is in the CPU time calculation for the process. Some samples display a smaller time than the previous sample, thus resulting in negative CPU % for that period, which explains the overflow value that appears (.0) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/531310 Title: Top showing % CPU usage To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/procps/+bug/531310/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 531310] Re: Top showing 9999% CPU usage
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: procps (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/531310 Title: Top showing % CPU usage To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/procps/+bug/531310/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 531310] Re: Top showing 9999% CPU usage
Cause of fuser going bonkers (for me) is this bug: https://bugs.launchpad.net/ubuntu/+source/php5/+bug/876387 That doesn't relate to the erroneous % reporting though. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/531310 Title: Top showing % CPU usage To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/procps/+bug/531310/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 531310] Re: Top showing 9999% CPU usage
Started seeing this after I started using Thunderbird as an email client. The process is fuser and top shows % CPU. General CPU usage rises while % is in use to about 50%. 32bit Kubuntu 11.10 Processor: Intel(R) Core(TM)2 Duo CPU T9300 @ 2.50GHz -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/531310 Title: Top showing % CPU usage To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/procps/+bug/531310/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 531310] Re: Top showing 9999% CPU usage
Seen frequently in 64-bit Ubuntu Server 10.04, usually in an apache2 process. Related to this? http://kerneltrap.org/mailarchive/linux- kernel/2007/10/3/328379/thread ** Attachment added: Screenshot1.png http://launchpadlibrarian.net/52189473/Screenshot1.png -- Top showing % CPU usage https://bugs.launchpad.net/bugs/531310 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 531310] Re: Top showing 9999% CPU usage
Just in case it matters, screenshot of it happening with a defunct process too. ** Attachment added: Screenshot2.png http://launchpadlibrarian.net/52189534/Screenshot2.png -- Top showing % CPU usage https://bugs.launchpad.net/bugs/531310 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 531310] Re: Top showing 9999% CPU usage
** Attachment added: ubuntu_10.04_amd64.png http://launchpadlibrarian.net/48509730/ubuntu_10.04_amd64.png -- Top showing % CPU usage https://bugs.launchpad.net/bugs/531310 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 531310] Re: Top showing 9999% CPU usage
Like the note above: I've seen it for few different processes but always for the top entry in top. I'm running on 64 bit Ubuntu Desktop 10.04. -- Top showing % CPU usage https://bugs.launchpad.net/bugs/531310 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 531310] Re: Top showing 9999% CPU usage
I allso see this sometimes. I'm guessing it is some kind of division by zero or such in top. It only applies to one top-sample. -- Top showing % CPU usage https://bugs.launchpad.net/bugs/531310 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 531310] Re: Top showing 9999% CPU usage
I also saw this, but for the eucalyptus-cloud process, shortly after startup. -- Top showing % CPU usage https://bugs.launchpad.net/bugs/531310 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 531310] Re: Top showing 9999% CPU usage
** Attachment added: snapshot241.png http://launchpadlibrarian.net/40052580/snapshot241.png ** Attachment added: Dependencies.txt http://launchpadlibrarian.net/40052582/Dependencies.txt -- Top showing % CPU usage https://bugs.launchpad.net/bugs/531310 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
