linux-kernel - Re: [RFC][PATCH 01/10] taskstats: Use real microsecond granularity for CPU times

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Date:	Fri, 08 Oct 2010 17:08:12 +0200
From:	Michael Holzheu <holzheu@...ux.vnet.ibm.com>
To:	balbir@...ux.vnet.ibm.com
Cc:	Shailabh Nagar <nagar1234@...ibm.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Venkatesh Pallipadi <venki@...gle.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Suresh Siddha <suresh.b.siddha@...el.com>,
	John stultz <johnstul@...ibm.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Oleg Nesterov <oleg@...hat.com>, Ingo Molnar <mingo@...e.hu>,
	Heiko Carstens <heiko.carstens@...ibm.com>,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC][PATCH 01/10] taskstats: Use real microsecond granularity
 for CPU times

On Thu, 2010-10-07 at 10:38 +0530, Balbir Singh wrote:
> * Michael Holzheu <holzheu@...ux.vnet.ibm.com> [2010-09-23 16:00:52]:
> 
> > Subject: [PATCH] taskstats: Use real microsecond granularity for CPU times
> > 
> > From: Michael Holzheu <holzheu@...ux.vnet.ibm.com>
> > 
> > The taskstats interface uses microsecond granularity for the user and
> > system time values. The conversion from cputime to the taskstats values
> > uses the cputime_to_msecs primitive which effectively limits the 
> > granularity to milliseconds. Add the cputime_to_usecs primitive for
> > architectures that have better, more precise CPU time values. Remove
> > cputime_to_msecs primitive because there is no more user left.
> > 
> > Signed-off-by: Michael Holzheu <holzheu@...ux.vnet.ibm.com>
> 
> Looks good to me.

Can I take that as an Acked-by?

Michael


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