linux-kernel - Re: + timer_stats-slimmed-down-using-statistics-infrastucture.patch added to -mm tree

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Message-ID: <f56c1ba00705131220i3ec8a21es789a5c25893a9c78@mail.gmail.com>
Date:	Sun, 13 May 2007 21:20:21 +0200
From:	"Cédric Augonnet" <cedric.augonnet@...il.com>
To:	"Arjan van de Ven" <arjan@...radead.org>
Cc:	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
	mp3@...ibm.com, mingo@...e.hu, tglx@...utronix.de
Subject: Re: + timer_stats-slimmed-down-using-statistics-infrastucture.patch added to -mm tree

2007/5/13, Arjan van de Ven <arjan@...radead.org>:
> On Fri, 2007-04-20 at 17:18 -0700, akpm@...ux-foundation.org wrote:
> > The patch titled
> >      timer_stats slimmed down: using statistics infrastucture
> > has been added to the -mm tree.  Its filename is
> >      timer_stats-slimmed-down-using-statistics-infrastucture.patch
> >
> > *** Remember to use Documentation/SubmitChecklist when testing your code ***
> >
> > See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
> > out what to do about this
> >
> > ------------------------------------------------------
> > Subject: timer_stats slimmed down: using statistics infrastucture
> > From: Martin Peschke <mp3@...ibm.com>
> >
> > This patch implements timer_stats based on the statistics infrastructure.
> >
> > Here is some sample output, which even somewhat
> > resembles /proc/timer_stats.
> > (>80 char lines because of symbol names, sorry for line breaks).
> >
> > It reads:
> > <statistic name> <basket> <hits> <label>
> >
> > with label being:
> > <pid> <task name> <start_fn>(<stop_fn>)
> >
> > [root@...30041 timer_stats]# cat data
>
> this patch changes the userspace API though, and breaks PowerTOP :(
>
> -
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>

Moreover, the documentation still refers to /proc/timer_stats which do
not appear in my 2.6.21-mm2 kernel.

Regards,
Cédric
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