linux-kernel - Re: [RFC PATCH v1 2/2] sched: fix group_capacity for thread level consolidation

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Message-ID: <20120127091012.GA8897@dirshya.in.ibm.com>
Date:	Fri, 27 Jan 2012 14:40:12 +0530
From:	Vaidyanathan Srinivasan <svaidy@...ux.vnet.ibm.com>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc:	Vincent Guittot <vincent.guittot@...aro.org>,
	Indan Zupancic <indan@....nu>,
	Youquan Song <youquan.song@...el.com>,
	Ingo Molnar <mingo@...e.hu>,
	Arjan van de Ven <arjan@...ux.intel.com>,
	Suresh Siddha <suresh.b.siddha@...el.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [RFC PATCH v1 2/2] sched: fix group_capacity for thread level
 consolidation

* Peter Zijlstra <a.p.zijlstra@...llo.nl> [2012-01-25 16:38:06]:

> On Mon, 2012-01-16 at 21:52 +0530, Vaidyanathan Srinivasan wrote:
> > +               /*
> > +                * If power savings balance is set at this domain, then
> > +                * make capacity equal to number of hardware threads to
> > +                * accommodate more tasks until capacity is reached.
> > +                */
> > +               else if (sd->flags & SD_POWERSAVINGS_BALANCE)
> > +                       sgs.group_capacity =
> > +                               cpumask_weight(sched_group_cpus(sg)); 
> 
> sg->group_weight perhaps?

Yes, I will correct this.  sg->group_weight is updated to the correct
value on sched_domain rebuild in init_sched_groups_power().

--Vaidy

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