linux-kernel - Re: [RFC PATCHSET 0/6] timer/hrtimer/timer_stats: Improvement on timer

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Message-ID: <4C7A806D.4010106@linux.intel.com>
Date:	Sun, 29 Aug 2010 08:44:45 -0700
From:	Arjan van de Ven <arjan@...ux.intel.com>
To:	Yong Zhang <yong.zhang0@...il.com>
CC:	linux-kernel@...r.kernel.org, tglx@...utronix.de,
	akpm@...ux-foundation.org, mingo@...e.hu, a.p.zijlstra@...llo.nl,
	tj@...nel.org, oleg@...hat.com
Subject: Re: [RFC PATCHSET 0/6] timer/hrtimer/timer_stats: Improvement on
 timer_stats

On 8/29/2010 8:05 AM, Yong Zhang wrote:
> Hi,
>
> This patchset focus on two problem:
>
> 1)timer_stats_timer_*_start_info() should belong to timer core only.
>    It should not be seen by outsider, such as workqueue. And should
>    not resident in timer.h.
>    Patch-0001~0003 first remove the only explicit out call, then move
>    timer_stats_timer_*_start_info() from timer.h to timer.c.
>
> 2)call site recorded by timer_stats sometimes show the timer core functions
>    instead of the real call site.
>    Now /proc/timer_stats is like below on my machine:
> ---now---
>    


one question; have you tested this with powertop? (powertop being one of 
the prime consumers of this interface)

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