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From: Jacob Pan <jacob.jun.pan@linux.intel.com>
To: paulmck@linux.vnet.ibm.com
Cc: Thomas Gleixner <tglx@linutronix.de>,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>,
	John Stultz <john.stultz@linaro.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Arjan van de Ven <arjan@linux.intel.com>,
	Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>,
	Len Brown <len.brown@intel.com>,
	Rafael Wysocki <rafael.j.wysocki@intel.com>,
	Eduardo Valentin <edubezval@gmail.com>,
	Paul Turner <pjt@google.com>,
	Josh Triplett <josh@joshtriplett.org>,
	jacob.jun.pan@linux.intel.com
Subject: Re: [PATCH 2/4] timer: relax tick stop in idle entry
Date: Mon, 16 Nov 2015 15:05:10 -0800	[thread overview]
Message-ID: <20151116150510.4846785d@icelake> (raw)
In-Reply-To: <20151116223117.GK5184@linux.vnet.ibm.com>

On Mon, 16 Nov 2015 14:31:17 -0800
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com> wrote:

> Just out of curiosity, what is the purpose of the forced idle state?
> Thermal control or some such?
yes. for thermal control or power capping. I have some description in
cover letter.
https://lwn.net/Articles/664405/

Thanks,
Jacob

  reply	other threads:[~2015-11-16 23:06 UTC|newest]

Thread overview: 78+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-13 19:53 [PATCH 0/4] CFS idle injection Jacob Pan
2015-11-13 19:53 ` [PATCH 1/4] ktime: add a roundup function Jacob Pan
2015-11-13 20:11   ` John Stultz
2015-11-13 22:33     ` Jacob Pan
2015-11-13 20:13   ` Thomas Gleixner
2015-11-13 22:36     ` Jacob Pan
2015-11-13 19:53 ` [PATCH 2/4] timer: relax tick stop in idle entry Jacob Pan
2015-11-13 20:22   ` Thomas Gleixner
2015-11-13 22:24     ` Jacob Pan
2015-11-16 15:06       ` Thomas Gleixner
2015-11-16 21:51         ` Jacob Pan
2015-11-16 22:01           ` Thomas Gleixner
2015-11-17  0:09             ` Jacob Pan
2015-11-19 17:43               ` Jacob Pan
2015-11-19 19:06               ` Peter Zijlstra
2015-11-19 19:21                 ` Jacob Pan
2015-11-19 19:59                   ` Peter Zijlstra
2015-11-19 23:41                     ` Jacob Pan
2015-11-16 22:31           ` Paul E. McKenney
2015-11-16 23:05             ` Jacob Pan [this message]
2015-11-16 23:15             ` Jacob Pan
2015-11-16 23:28               ` Paul E. McKenney
2015-11-16 23:32                 ` Arjan van de Ven
2015-11-16 23:40                   ` Jacob Pan
2015-11-17  0:00                     ` Paul E. McKenney
2015-11-16 22:32           ` Josh Triplett
2015-11-16 23:26             ` Paul E. McKenney
2015-11-17  1:41               ` Josh Triplett
2015-11-17  2:53                 ` Paul E. McKenney
2015-11-17  2:57                   ` Arjan van de Ven
2015-11-17  5:04                     ` Paul E. McKenney
2015-11-17 10:24                       ` Peter Zijlstra
2015-11-17 12:57                         ` Jacob Pan
2015-11-17 13:49                           ` Paul E. McKenney
2015-11-13 19:53 ` [PATCH 3/4] sched: introduce synchronized idle injection Jacob Pan
2015-11-13 20:23   ` kbuild test robot
2015-11-18  8:36   ` Ingo Molnar
2015-11-18 10:35     ` Peter Zijlstra
2015-11-18 12:27       ` Morten Rasmussen
2015-11-18 12:49         ` Peter Zijlstra
2015-11-18 14:04           ` Morten Rasmussen
2015-11-18 14:52             ` Jacob Pan
2015-11-18 15:09               ` Morten Rasmussen
2015-11-18 15:11                 ` Jacob Pan
2015-11-18 15:21                   ` Thomas Gleixner
2015-11-18 17:03                     ` Jacob Pan
2015-11-18 16:04                   ` Morten Rasmussen
2015-11-27  9:17       ` Ingo Molnar
2015-11-18 14:10     ` Jacob Pan
2015-11-27  9:17       ` Ingo Molnar
2015-12-02 17:28         ` Jacob Pan
2015-11-18 14:19     ` Arjan van de Ven
2015-11-18 15:44   ` Morten Rasmussen
2015-11-18 15:51     ` Arjan van de Ven
2015-11-19 17:24       ` Morten Rasmussen
2015-11-19 20:09         ` Peter Zijlstra
2015-11-20  9:45           ` Thomas Gleixner
2015-11-20 10:20             ` Peter Zijlstra
2015-11-20 10:58               ` Thomas Gleixner
2015-11-20 12:54                 ` Peter Zijlstra
2015-11-20 18:53                   ` Thomas Gleixner
2016-01-11 21:50                     ` Jacob Pan
2016-01-19 12:06                       ` Ingo Molnar
2016-01-19 18:00                         ` Jacob Pan
2015-11-24 11:38                 ` Jacob Pan
2015-11-23 17:59         ` Jacob Pan
2015-11-23 17:56   ` Javi Merino
2015-11-23 18:07     ` Peter Zijlstra
2015-11-24  9:12       ` Javi Merino
2015-11-24 10:09         ` Peter Zijlstra
2015-11-24 11:10           ` Jacob Pan
2015-11-24 12:00             ` Javi Merino
2015-11-24 18:22               ` Jacob Pan
2015-11-25  9:41                 ` Javi Merino
2015-11-13 19:53 ` [PATCH 4/4] sched: add trace event for " Jacob Pan
2015-11-13 20:10   ` kbuild test robot
2015-11-19 14:39   ` Javi Merino
2015-11-19 15:35     ` Jacob Pan

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