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    SubjectRe: [RFC][PATCH v2 5/7] taskstats: Improve cumulative CPU time accounting
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    On Mon, 2010-11-15 at 19:00 +0100, Martin Schwidefsky wrote:
    > On Mon, 15 Nov 2010 18:51:57 +0100
    > Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:
    >
    > > On Mon, 2010-11-15 at 18:49 +0100, Martin Schwidefsky wrote:
    > > > > To what purpose?
    > > >
    > > > Is that a trick question? Why do we have tools like "top"? Or process
    > > > accounting? The point is that the quality of the numbers we get right
    > > > now is rather bad, the overhead of scanning /proc is horrendous and
    > > > the 10ms granularity is rather coarse.
    > >
    > > But you're not just replacing top, you're adding all kinds of new
    > > accounting crap all over the place.
    >
    > We DO replace top. Patch #7 of 7.

    You _also_ replace top, but its not by far the only thing you do. If you
    simply replaced top you wouldn't need to add tons of extra accounting,
    would you?


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