From: arjan@linux.intel.com (Arjan van de Ven)
To: linux-arm-kernel@lists.infradead.org
Subject: questions of cpuidle
Date: Tue, 10 Dec 2013 06:53:16 -0800 [thread overview]
Message-ID: <52A72ADC.6000003@linux.intel.com> (raw)
In-Reply-To: <52A6AFD1.4010002@linaro.org>
On 12/9/2013 10:08 PM, Alex Shi wrote:
> And for monitor/mwait idle method, seems deep c-state cpu need to keep a
> eye on memory bus. So seems the memory controller in cpu package is
> impossible to get into sleep, right?
not the memory bus
the cache coherency logic ;-)
WARNING: multiple messages have this Message-ID (diff)
From: Arjan van de Ven <arjan@linux.intel.com>
To: Alex Shi <alex.shi@linaro.org>,
Preeti U Murthy <preeti@linux.vnet.ibm.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>,
Frederic Weisbecker <fweisbec@gmail.com>,
LAK <linux-arm-kernel@lists.infradead.org>,
"tglx@linutronix.de" <tglx@linutronix.de>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"len.brown@intel.com" <len.brown@intel.com>,
rafael.j.wysocki@intel.com
Subject: Re: questions of cpuidle
Date: Tue, 10 Dec 2013 06:53:16 -0800 [thread overview]
Message-ID: <52A72ADC.6000003@linux.intel.com> (raw)
In-Reply-To: <52A6AFD1.4010002@linaro.org>
On 12/9/2013 10:08 PM, Alex Shi wrote:
> And for monitor/mwait idle method, seems deep c-state cpu need to keep a
> eye on memory bus. So seems the memory controller in cpu package is
> impossible to get into sleep, right?
not the memory bus
the cache coherency logic ;-)
next prev parent reply other threads:[~2013-12-10 14:53 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-09 13:40 questions of cpuidle Alex Shi
2013-12-09 13:40 ` Alex Shi
2013-12-09 14:17 ` Daniel Lezcano
2013-12-09 14:17 ` Daniel Lezcano
2013-12-10 6:33 ` Alex Shi
2013-12-10 6:33 ` Alex Shi
2013-12-10 7:27 ` Daniel Lezcano
2013-12-10 7:27 ` Daniel Lezcano
2013-12-10 8:07 ` anish singh
2013-12-10 8:07 ` anish singh
2013-12-10 8:25 ` Daniel Lezcano
2013-12-10 8:25 ` Daniel Lezcano
2013-12-10 8:44 ` Alex Shi
2013-12-10 8:44 ` Alex Shi
2013-12-09 15:26 ` Preeti U Murthy
2013-12-09 15:26 ` Preeti U Murthy
2013-12-10 6:08 ` Alex Shi
2013-12-10 6:08 ` Alex Shi
2013-12-10 14:53 ` Arjan van de Ven [this message]
2013-12-10 14:53 ` Arjan van de Ven
2013-12-10 15:28 ` Alex Shi
2013-12-10 15:28 ` Alex Shi
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