lkml.org 
[lkml]   [2007]   [Oct]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [stable] 2.6.23 regression: top displaying 9999% CPU usage
    Frans Pop wrote:
    > On Tuesday 16 October 2007, Balbir Singh wrote:
    >> I am trying to think out loud as to what the root cause of the problem
    >> might be. In one of the discussion threads, I saw utime going backwards,
    >> which seemed very odd, I suspect that those are rounding errors.
    >
    > I only remembered stime going backwards, but looking back at the mails
    > you are right, there has been one case of utime going backwards too.
    > stime going backwards happens _much_ more frequently.
    >
    >> I have tried and not had any success reproducing the problem, could you
    >> please help me with some pointers/steps to reproduce the problem?
    >
    > I can reproduce the problem reliably for two KDE programs I have running
    > permanently on my system: kontact and amarok. Both of these wake up
    > regularly and use some (not very much) processor capacity before going to
    > sleep again. Any process that has that that characteristic should do.
    >
    > /me thinks a bit and tries something
    >
    > lol - I have just managed to reproduce this with 'top' itself :-P
    >

    Thanks, I know why I am not seeing the problem. My box has
    CONFIG_VIRT_CPU_ACCOUNTING set. I'll find another box and try.



    --
    Warm Regards,
    Balbir Singh
    Linux Technology Center
    IBM, ISTL
    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2007-10-16 12:41    [W:0.022 / U:29.704 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site