linux-kernel - Re: [PATCH 16/18] sched: Avoid overloading CPUs on a preferred NUMA node

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Date:	Wed, 31 Jul 2013 10:49:14 +0100
From:	Mel Gorman <mgorman@...e.de>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>,
	Ingo Molnar <mingo@...nel.org>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Johannes Weiner <hannes@...xchg.org>,
	Linux-MM <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 16/18] sched: Avoid overloading CPUs on a preferred NUMA
 node

On Wed, Jul 17, 2013 at 12:54:23PM +0200, Peter Zijlstra wrote:
> On Mon, Jul 15, 2013 at 04:20:18PM +0100, Mel Gorman wrote:
> > +static long effective_load(struct task_group *tg, int cpu, long wl, long wg);
> 
> And this

> -- which suggests you always build with cgroups enabled?

Yes, the test kernel configuration is one taken from an opensuse kernel
with a bunch of unnecessary drivers removed.

> I generally
> try and disable all that nonsense when building new stuff, the scheduler is a
> 'lot' simpler that way. Once that works make it 'interesting' again.
> 

Understood. I'll disable CONFIG_CGROUPS in the next round of testing which
will be based against 3.11-rc3 once I plough this set of feedback.

Thanks.

-- 
Mel Gorman
SUSE Labs
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