From: Balbir Singh <balbir@linux.vnet.ibm.com>
To: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Cc: Shailabh Nagar <nagar1234@in.ibm.com>,
Andrew Morton <akpm@linux-foundation.org>,
Venkatesh Pallipadi <venki@google.com>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Suresh Siddha <suresh.b.siddha@intel.com>,
John stultz <johnstul@us.ibm.com>,
Thomas Gleixner <tglx@linutronix.de>,
Oleg Nesterov <oleg@redhat.com>, Ingo Molnar <mingo@elte.hu>,
Heiko Carstens <heiko.carstens@de.ibm.com>,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [RFC][PATCH 01/10] taskstats: Use real microsecond granularity for CPU times
Date: Fri, 8 Oct 2010 22:09:32 +0530 [thread overview]
Message-ID: <20101008163932.GG5327@balbir.in.ibm.com> (raw)
In-Reply-To: <1286550492.1958.0.camel@holzheu-laptop>
* Michael Holzheu <holzheu@linux.vnet.ibm.com> [2010-10-08 17:08:12]:
> On Thu, 2010-10-07 at 10:38 +0530, Balbir Singh wrote:
> > * Michael Holzheu <holzheu@linux.vnet.ibm.com> [2010-09-23 16:00:52]:
> >
> > > Subject: [PATCH] taskstats: Use real microsecond granularity for CPU times
> > >
> > > From: Michael Holzheu <holzheu@linux.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@linux.vnet.ibm.com>
> >
> > Looks good to me.
>
> Can I take that as an Acked-by?
>
Certainly
Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com>
--
Three Cheers,
Balbir
next prev parent reply other threads:[~2010-10-08 16:39 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-23 13:48 [RFC][PATCH 00/10] taskstats: Enhancements for precise accounting Michael Holzheu
2010-09-23 14:00 ` [RFC][PATCH 01/10] taskstats: Use real microsecond granularity for CPU times Michael Holzheu
2010-10-07 5:08 ` Balbir Singh
2010-10-08 15:08 ` Michael Holzheu
2010-10-08 16:39 ` Balbir Singh [this message]
2010-09-23 14:01 ` [RFC][PATCH 02/10] taskstats: Separate taskstats commands Michael Holzheu
2010-09-27 9:32 ` Balbir Singh
2010-10-11 7:40 ` Balbir Singh
2010-09-23 14:01 ` [RFC][PATCH 03/10] taskstats: Split fill_pid function Michael Holzheu
2010-09-23 17:33 ` Oleg Nesterov
2010-09-27 9:33 ` Balbir Singh
2010-10-11 8:31 ` Balbir Singh
2010-09-23 14:01 ` [RFC][PATCH 04/10] taskstats: Add new taskstats command TASKSTATS_CMD_ATTR_PIDS Michael Holzheu
2010-09-23 14:01 ` [RFC][PATCH 05/10] taskstats: Add "/proc/taskstats" Michael Holzheu
2010-09-23 14:01 ` [RFC][PATCH 06/10] taskstats: Add thread group ID to taskstats structure Michael Holzheu
2010-09-23 14:01 ` [RFC][PATCH 07/10] taskstats: Add per task steal time accounting Michael Holzheu
2010-09-23 14:02 ` [RFC][PATCH 08/10] taskstats: Add cumulative CPU time (user, system and steal) Michael Holzheu
2010-09-23 14:02 ` [RFC][PATCH 09/10] taskstats: Fix exit CPU time accounting Michael Holzheu
2010-09-23 17:10 ` Oleg Nesterov
2010-09-24 12:18 ` Michael Holzheu
2010-09-26 18:11 ` Oleg Nesterov
2010-09-27 13:23 ` Michael Holzheu
2010-09-27 13:42 ` Martin Schwidefsky
2010-09-27 16:51 ` Oleg Nesterov
2010-09-28 7:09 ` Martin Schwidefsky
2010-09-29 19:19 ` Roland McGrath
2010-09-30 13:47 ` Michael Holzheu
2010-10-05 8:57 ` Roland McGrath
2010-10-06 9:29 ` Michael Holzheu
2010-10-06 15:26 ` Oleg Nesterov
2010-10-07 15:06 ` Michael Holzheu
2010-10-11 12:37 ` Oleg Nesterov
2010-10-12 13:10 ` Michael Holzheu
2010-10-14 13:47 ` Oleg Nesterov
2010-10-15 14:34 ` Michael Holzheu
2010-10-19 14:17 ` Oleg Nesterov
2010-10-22 16:53 ` Michael Holzheu
2010-09-28 8:36 ` Balbir Singh
2010-09-28 9:08 ` Martin Schwidefsky
2010-09-28 9:23 ` Balbir Singh
2010-09-28 10:36 ` Martin Schwidefsky
2010-09-28 10:39 ` Balbir Singh
2010-09-28 8:21 ` Balbir Singh
2010-09-28 16:50 ` Michael Holzheu
2010-09-23 14:04 ` [RFC][PATCH 10/10] taststats: User space with ptop tool Michael Holzheu
2010-09-23 20:11 ` [RFC][PATCH 00/10] taskstats: Enhancements for precise accounting Andrew Morton
2010-09-23 22:11 ` Matt Helsley
2010-09-24 12:39 ` Michael Holzheu
2010-09-25 18:19 ` Serge E. Hallyn
2010-09-24 9:10 ` Michael Holzheu
2010-09-24 18:50 ` Andrew Morton
2010-09-27 9:18 ` Michael Holzheu
2010-09-27 20:02 ` Andrew Morton
2010-09-28 8:17 ` Balbir Singh
2010-09-27 10:49 ` Balbir Singh
2010-09-24 9:16 ` Balbir Singh
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