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From: Alex Shi <alex.shi@intel.com>
To: Mike Galbraith <efault@gmx.de>
Cc: peterz@infradead.org, Joonsoo Kim <iamjoonsoo.kim@lge.com>,
	torvalds@linux-foundation.org, mingo@redhat.com,
	tglx@linutronix.de, akpm@linux-foundation.org,
	arjan@linux.intel.com, bp@alien8.de, pjt@google.com,
	namhyung@kernel.org, vincent.guittot@linaro.org,
	gregkh@linuxfoundation.org, preeti@linux.vnet.ibm.com,
	viresh.kumar@linaro.org, linux-kernel@vger.kernel.org,
	morten.rasmussen@arm.com
Subject: Re: [patch v5 10/15] sched: packing transitory tasks in wake/exec power balancing
Date: Wed, 20 Feb 2013 16:54:49 +0800	[thread overview]
Message-ID: <51248F59.2060900@intel.com> (raw)
In-Reply-To: <1361349823.5919.78.camel@marge.simpson.net>

On 02/20/2013 04:43 PM, Mike Galbraith wrote:
>> > 
>> > Sounds reasonable too.
>> > 
>> > I have no idea of the of the decision now.
>> > And guess many guys dislike to use a knob to let user do the choice.
> Nobody likes seeing yet more knobs much, automagical is preferred.
> Trouble with automagical heuristics usage is that any heuristic will
> inevitably get it wrong sometimes, so giving the user control over usage
> is IMHO a good thing.. and once we give the user the choice, we must
> honor it, else what was the point?
> 
> Anyway, fwiw, I liked what I saw test driving the patch set..
> 
>> > What's your opinions, Peter?
> ..but maintainer opinions carry more weight than mine, even to me ;-)

:) Yes, maintainers usually heard enough arguments and can balance them...


-- 
Thanks Alex

  reply	other threads:[~2013-02-20  8:54 UTC|newest]

Thread overview: 90+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-02-18  5:07 [patch v5 0/15] power aware scheduling Alex Shi
2013-02-18  5:07 ` [patch v5 01/15] sched: set initial value for runnable avg of sched entities Alex Shi
2013-02-18  8:28   ` Joonsoo Kim
2013-02-18  9:16     ` Alex Shi
2013-02-18  5:07 ` [patch v5 02/15] sched: set initial load avg of new forked task Alex Shi
2013-02-20  6:20   ` Alex Shi
2013-02-24 10:57     ` Preeti U Murthy
2013-02-25  6:00       ` Alex Shi
2013-02-28  7:03         ` Preeti U Murthy
2013-02-25  7:12       ` Alex Shi
2013-02-18  5:07 ` [patch v5 03/15] Revert "sched: Introduce temporary FAIR_GROUP_SCHED dependency for load-tracking" Alex Shi
2013-02-18  5:07 ` [patch v5 04/15] sched: add sched balance policies in kernel Alex Shi
2013-02-20  9:37   ` Ingo Molnar
2013-02-20 13:40     ` Alex Shi
2013-02-20 15:41       ` Ingo Molnar
2013-02-21  1:43         ` Alex Shi
2013-02-18  5:07 ` [patch v5 05/15] sched: add sysfs interface for sched_balance_policy selection Alex Shi
2013-02-18  5:07 ` [patch v5 06/15] sched: log the cpu utilization at rq Alex Shi
2013-02-20  9:30   ` Peter Zijlstra
2013-02-20 12:09     ` Preeti U Murthy
2013-02-20 13:34       ` Peter Zijlstra
2013-02-20 14:36         ` Alex Shi
2013-02-20 14:33     ` Alex Shi
2013-02-20 15:20       ` Peter Zijlstra
2013-02-21  1:35         ` Alex Shi
2013-02-20 15:22       ` Peter Zijlstra
2013-02-25  2:26         ` Alex Shi
2013-03-22  8:49         ` Alex Shi
2013-02-20 12:19   ` Preeti U Murthy
2013-02-20 12:39     ` Alex Shi
2013-02-18  5:07 ` [patch v5 07/15] sched: add new sg/sd_lb_stats fields for incoming fork/exec/wake balancing Alex Shi
2013-02-20  9:38   ` Peter Zijlstra
2013-02-20 12:27     ` Alex Shi
2013-02-18  5:07 ` [patch v5 08/15] sched: move sg/sd_lb_stats struct ahead Alex Shi
2013-02-18  5:07 ` [patch v5 09/15] sched: add power aware scheduling in fork/exec/wake Alex Shi
2013-02-20  9:42   ` Peter Zijlstra
2013-02-20 12:09     ` Alex Shi
2013-02-20 13:36       ` Peter Zijlstra
2013-02-20 14:23         ` Alex Shi
2013-02-21 13:33           ` Peter Zijlstra
2013-02-21 14:40             ` Alex Shi
2013-02-22  8:54               ` Peter Zijlstra
2013-02-24  9:27                 ` Alex Shi
2013-02-24  9:49                   ` Preeti U Murthy
2013-02-24 11:55                     ` Alex Shi
2013-02-24 17:51                   ` Preeti U Murthy
2013-02-25  2:23                     ` Alex Shi
2013-02-25  3:23                       ` Mike Galbraith
2013-02-25  9:53                         ` Alex Shi
2013-02-25 10:30                           ` Mike Galbraith
2013-02-18  5:07 ` [patch v5 10/15] sched: packing transitory tasks in wake/exec power balancing Alex Shi
2013-02-18  8:44   ` Joonsoo Kim
2013-02-18  8:56     ` Alex Shi
2013-02-20  5:55       ` Alex Shi
2013-02-20  7:40         ` Mike Galbraith
2013-02-20  8:11           ` Alex Shi
2013-02-20  8:43             ` Mike Galbraith
2013-02-20  8:54               ` Alex Shi [this message]
2013-02-18  5:07 ` [patch v5 11/15] sched: add power/performance balance allow flag Alex Shi
2013-02-20  9:48   ` Peter Zijlstra
2013-02-20 12:04     ` Alex Shi
2013-02-20 13:37       ` Peter Zijlstra
2013-02-20 13:48         ` Peter Zijlstra
2013-02-20 14:08           ` Alex Shi
2013-02-20 13:52         ` Alex Shi
2013-02-20 12:12   ` Borislav Petkov
2013-02-20 14:20     ` Alex Shi
2013-02-20 15:22       ` Borislav Petkov
2013-02-21  1:32         ` Alex Shi
2013-02-21  9:42           ` Borislav Petkov
2013-02-21 14:52             ` Alex Shi
2013-02-18  5:07 ` [patch v5 12/15] sched: pull all tasks from source group Alex Shi
2013-02-18  5:07 ` [patch v5 13/15] sched: no balance for prefer_sibling in power scheduling Alex Shi
2013-02-18  5:07 ` [patch v5 14/15] sched: power aware load balance Alex Shi
2013-03-20  4:57   ` Preeti U Murthy
2013-03-21  7:43     ` Alex Shi
2013-03-21  8:41       ` Preeti U Murthy
2013-03-21  9:27         ` Alex Shi
2013-03-21 10:27           ` Preeti U Murthy
2013-03-22  1:30             ` Alex Shi
2013-03-22  5:14               ` Preeti U Murthy
2013-03-25  4:52                 ` Alex Shi
2013-03-29 12:42                   ` Preeti U Murthy
2013-03-29 13:39                     ` Alex Shi
2013-03-30 11:25                       ` Preeti U Murthy
2013-03-30 14:04                         ` Alex Shi
2013-03-30 15:31                           ` Preeti U Murthy
2013-02-18  5:07 ` [patch v5 15/15] sched: lazy power balance Alex Shi
2013-02-18  7:44 ` [patch v5 0/15] power aware scheduling Alex Shi
2013-02-19 12:08 ` Paul Turner

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