linux-kernel - Re: [PATCH 0/6] Basic scheduler support for automatic NUMA balancing

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Message-ID: <20130702085546.GE21726@dyad.programming.kicks-ass.net>
Date:	Tue, 2 Jul 2013 10:55:46 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
Cc:	Mel Gorman <mgorman@...e.de>, 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 0/6] Basic scheduler support for automatic NUMA balancing

On Tue, Jul 02, 2013 at 09:46:59AM +0200, Peter Zijlstra wrote:
> So on the biggest system I've got; 4 nodes 32 cpus:
> 
>  Performance counter stats for './numa02' (5 runs):
> 
> 3.10.0+ + patches - NO_NUMA	58.235353126 seconds time elapsed    ( +-  0.45% )
> 3.10.0+ + patches -    NUMA   17.580963359 seconds time elapsed    ( +-  0.09% )

I just 'noticed' that I included my migrate_degrades_locality patch -- the one
posted somewhere in this thread (+ compile fixes).

Let me re-run without that one to see if there's any difference.

NO_NUMA		57.961384751 seconds time elapsed    ( +-  0.64% )
   NUMA		17.482115801 seconds time elapsed    ( +-  0.15% )
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