linux-kernel - Re: [PATCH 6/8] sched: Reschedule task on preferred NUMA node once selected

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Message-ID: <20130703152821.GG1875@suse.de>
Date:	Wed, 3 Jul 2013 16:28:21 +0100
From:	Mel Gorman <mgorman@...e.de>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	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 6/8] sched: Reschedule task on preferred NUMA node once
 selected

On Wed, Jul 03, 2013 at 11:50:59AM +0200, Peter Zijlstra wrote:
> On Tue, Jul 02, 2013 at 08:15:22PM +0200, Peter Zijlstra wrote:
> > 
> > 
> > Something like this should avoid tasks being lumped back onto one node..
> > 
> > Compile tested only, need food.
> 
> OK, this one actually ran on my system and showed no negative effects on
> numa02 -- then again, I didn't have the problem to begin with :/
> 
> Srikar, could you see what your 8-node does with this?
> 
> I'll go dig around to see where I left my SpecJBB.
> 

I reshuffled the v2 series a bit to match your implied preference for layout
and rebased this on top of the end result. May not have the beans to
absorb it before I quit for the evening but I'll at least queue it up
overnight.

-- 
Mel Gorman
SUSE Labs
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