linux-kernel - Re: [PATCH v5 04/12] sched: Allow all archs to set the capacity

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Message-ID: <20140827131208.GB13808@linux.vnet.ibm.com>
Date:	Wed, 27 Aug 2014 18:42:45 +0530
From:	Kamalesh Babulal <kamalesh@...ux.vnet.ibm.com>
To:	Vincent Guittot <vincent.guittot@...aro.org>
Cc:	peterz@...radead.org, mingo@...nel.org,
	linux-kernel@...r.kernel.org, preeti@...ux.vnet.ibm.com,
	linux@....linux.org.uk, linux-arm-kernel@...ts.infradead.org,
	riel@...hat.com, Morten.Rasmussen@....com, efault@....de,
	nicolas.pitre@...aro.org, linaro-kernel@...ts.linaro.org,
	daniel.lezcano@...aro.org, dietmar.eggemann@....com
Subject: Re: [PATCH v5 04/12] sched: Allow all archs to set the capacity_orig

* Vincent Guittot <vincent.guittot@...aro.org> [2014-08-26 13:06:47]:

> capacity_orig is only changed for system with a SMT sched_domain level in order
> to reflect the lower capacity of CPUs. Heterogenous system also have to reflect an
> original capacity that is different from the default value.
> 
> Create a more generic function arch_scale_cpu_capacity that can be also used by
> non SMT platform to set capacity_orig.
> 
> The weak behavior of arch_scale_cpu_capacity is the previous SMT one in order to
> keep backward compatibility in the use of capacity_orig.
> 
> arch_scale_smt_capacity and default_scale_smt_capacity have been removed as
> they were not use elsewhere than in arch_scale_cpu_capacity.
> 
> Signed-off-by: Vincent Guittot <vincent.guittot@...aro.org>

Reviewed-by: Kamalesh Babulal <kamalesh@...ux.vnet.ibm.com>

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