From: Arjan van de Ven <arjan@linux.intel.com>
To: Morten Rasmussen <morten.rasmussen@arm.com>
Cc: Catalin Marinas <Catalin.Marinas@arm.com>,
Peter Zijlstra <peterz@infradead.org>,
"mingo@kernel.org" <mingo@kernel.org>,
"vincent.guittot@linaro.org" <vincent.guittot@linaro.org>,
"preeti@linux.vnet.ibm.com" <preeti@linux.vnet.ibm.com>,
"alex.shi@intel.com" <alex.shi@intel.com>,
"efault@gmx.de" <efault@gmx.de>,
"pjt@google.com" <pjt@google.com>,
"len.brown@intel.com" <len.brown@intel.com>,
"corbet@lwn.net" <corbet@lwn.net>,
"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
"torvalds@linux-foundation.org" <torvalds@linux-foundation.org>,
"tglx@linutronix.de" <tglx@linutronix.de>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linaro-kernel@lists.linaro.org" <linaro-kernel@lists.linaro.org>
Subject: Re: [RFC][PATCH 0/9] sched: Power scheduler design proposal
Date: Wed, 24 Jul 2013 09:48:42 -0700 [thread overview]
Message-ID: <51F0056A.7020208@linux.intel.com> (raw)
In-Reply-To: <20130724164607.GF12572@e103034-lin>
>
> I would expect performance to be disjoint for most tasks. If there was
> an overlap, the big would probably be less power efficient (as in
> energy/instruction) than the little so you would prefer to run on the
> little anyway.
>
> In what way would you use the overlap?
if the scheduler thinks a task would be better off on the other side
than where it is now, it could first move it into the "overlap area" on the
same side by means of experiment, and if the task behaves as expected there,
THEN move it over.
next prev parent reply other threads:[~2013-07-24 16:48 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-09 15:55 [RFC][PATCH 0/9] sched: Power scheduler design proposal Morten Rasmussen
2013-07-09 15:55 ` [RFC][PATCH 1/9] sched: Introduce power scheduler Morten Rasmussen
2013-07-09 16:48 ` Arjan van de Ven
2013-07-10 2:10 ` Arjan van de Ven
2013-07-10 11:11 ` Morten Rasmussen
2013-07-10 11:19 ` Vincent Guittot
2013-07-09 15:55 ` [RFC][PATCH 2/9] sched: Redirect update_cpu_power to sched/power.c Morten Rasmussen
2013-07-09 15:55 ` [RFC][PATCH 3/9] sched: Make select_idle_sibling() skip cpu with a cpu_power of 1 Morten Rasmussen
2013-07-09 15:55 ` [RFC][PATCH 4/9] sched: Make periodic load-balance disregard cpus " Morten Rasmussen
2013-07-09 15:55 ` [RFC][PATCH 5/9] sched: Make idle_balance() skip " Morten Rasmussen
2013-07-09 15:55 ` [RFC][PATCH 6/9] sched: power: add power_domain data structure Morten Rasmussen
2013-07-09 15:55 ` [RFC][PATCH 7/9] sched: power: Add power driver interface Morten Rasmussen
2013-07-09 15:55 ` [RFC][PATCH 8/9] sched: power: Add initial frequency scaling support to power scheduler Morten Rasmussen
2013-07-10 13:10 ` Arjan van de Ven
2013-07-12 12:51 ` Morten Rasmussen
2013-07-12 13:06 ` Catalin Marinas
2013-07-12 15:37 ` Arjan van de Ven
2013-07-09 15:55 ` [RFC][PATCH 9/9] sched: power: cpufreq: Initial schedpower cpufreq governor Morten Rasmussen
2013-07-09 16:58 ` [RFC][PATCH 0/9] sched: Power scheduler design proposal Arjan van de Ven
2013-07-10 11:16 ` Morten Rasmussen
2013-07-10 13:05 ` Arjan van de Ven
2013-07-12 12:46 ` Morten Rasmussen
2013-07-12 15:35 ` Arjan van de Ven
2013-07-12 13:00 ` Catalin Marinas
2013-07-12 15:44 ` Arjan van de Ven
2013-07-11 11:34 ` Preeti U Murthy
2013-07-12 13:48 ` Morten Rasmussen
2013-07-15 3:43 ` Preeti U Murthy
2013-07-15 9:55 ` Catalin Marinas
2013-07-15 15:24 ` Arjan van de Ven
2013-07-12 13:31 ` Catalin Marinas
2013-07-13 6:49 ` Peter Zijlstra
2013-07-13 10:23 ` Catalin Marinas
2013-07-15 7:53 ` Vincent Guittot
2013-07-15 20:39 ` Peter Zijlstra
2013-07-16 12:42 ` Catalin Marinas
2013-07-16 15:23 ` Arjan van de Ven
2013-07-17 14:14 ` Catalin Marinas
2013-07-24 13:50 ` Morten Rasmussen
2013-07-24 15:16 ` Arjan van de Ven
2013-07-24 16:46 ` Morten Rasmussen
2013-07-24 16:48 ` Arjan van de Ven [this message]
2013-07-25 8:00 ` Morten Rasmussen
2013-07-13 14:40 ` Arjan van de Ven
2013-07-15 19:59 ` Peter Zijlstra
2013-07-15 20:37 ` Arjan van de Ven
2013-07-15 21:03 ` Peter Zijlstra
2013-07-15 22:46 ` Arjan van de Ven
2013-07-16 20:45 ` David Lang
2013-07-15 20:41 ` Arjan van de Ven
2013-07-15 21:06 ` Peter Zijlstra
2013-07-15 21:12 ` Peter Zijlstra
2013-07-15 22:52 ` Arjan van de Ven
2013-07-16 17:38 ` Peter Zijlstra
2013-07-16 18:44 ` Arjan van de Ven
2013-07-16 19:21 ` Peter Zijlstra
2013-07-16 19:57 ` Arjan van de Ven
2013-07-16 20:17 ` Peter Zijlstra
2013-07-16 20:21 ` Arjan van de Ven
2013-07-16 20:32 ` Arjan van de Ven
2013-07-15 22:46 ` Arjan van de Ven
2013-07-13 16:14 ` Arjan van de Ven
2013-07-15 2:05 ` Alex Shi
2013-07-24 13:16 ` Morten Rasmussen
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