linux-kernel - Re: [RFC][PATCH 1/5] sched, fair: Let minimally loaded cpu balance the group

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Message-ID: <20120502103453.GB22740@linux.vnet.ibm.com>
Date:	Wed, 2 May 2012 16:04:53 +0530
From:	Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc:	mingo@...nel.org, pjt@...gle.com, suresh.b.siddha@...el.com,
	efault@....de, linux-kernel@...r.kernel.org
Subject: Re: [RFC][PATCH 1/5] sched, fair: Let minimally loaded cpu balance
 the group

* Peter Zijlstra <a.p.zijlstra@...llo.nl> [2012-05-02 12:31:30]:

> > IOW :
> > 
> > 		balance_load = 0 iff idle_cpu(i) ??
> 
> I think so, even for !0 load_idx, load will only reach zero when we're
> idle, just takes longer.

Right ...so should we force it to select a idle_cpu by having
balance_load = 0 for a idle cpu (ignoring what target_load(i, load_idx)
told us as its load?

- vatsa

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