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    SubjectRe: Strange load issues with 2.5.69/70 in both -mm and -bk trees.
    Tom Sightler <ttsig@tuxyturvy.com> wrote:
    >
    > On Sun, 2003-06-01 at 00:45, Andrew Morton wrote:
    > > Tom Sightler <ttsig@tuxyturvy.com> wrote:
    > > >
    > > > I simply reniced this process to -10 and
    > > > everything started working fine. Upon looking a little further it
    > > > seemed that the kernel was dynamically boosting the priority of the
    > > > process much higher than it probably should be, in the end, not leaving
    > > > enough CPU for playing the sounds without skipping.
    > >
    > > Yes, it seems that too many real-world applications are accidentally
    > > triggering this problem.
    > >
    > > Could you please run an strace of the boosted process, find out what it is
    > > doing to get itself boosted in this manner? Wait until things are in
    > > steady state and the process is boosted, then run `strace -tt <pid>' so we
    > > see the timing info.
    >
    > The strace was quite large so I have uploaded it to
    > http://tuxyturvy.com/strace-pluginserver.gz
    >

    Seems to be doing lots of small reads and writes. Maybe to a pipe. What
    is the system context switch rate while this is happening? From `vmstat
    1'?

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