Re: [RFC][PATCH v2 5/7] taskstats: Improve cumulative CPU timeaccounting

From: Martin Schwidefsky
Date: Mon Nov 15 2010 - 13:00:40 EST


On Mon, 15 Nov 2010 18:51:57 +0100
Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> 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.

--
blue skies,
Martin.

"Reality continues to ruin my life." - Calvin.

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