linux-kernel - Re: [PATCH 00/36] AutoNUMA24

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Message-ID: <5035325C.3070909@redhat.com>
Date:	Wed, 22 Aug 2012 15:26:20 -0400
From:	Rik van Riel <riel@...hat.com>
To:	Andrea Arcangeli <aarcange@...hat.com>
CC:	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Hillf Danton <dhillf@...il.com>, Dan Smith <danms@...ibm.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...e.hu>, Paul Turner <pjt@...gle.com>,
	Suresh Siddha <suresh.b.siddha@...el.com>,
	Mike Galbraith <efault@....de>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Lai Jiangshan <laijs@...fujitsu.com>,
	Bharata B Rao <bharata.rao@...il.com>,
	Lee Schermerhorn <Lee.Schermerhorn@...com>,
	Johannes Weiner <hannes@...xchg.org>,
	Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>,
	Christoph Lameter <cl@...ux.com>,
	Alex Shi <alex.shi@...el.com>,
	Mauricio Faria de Oliveira <mauricfo@...ux.vnet.ibm.com>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Don Morris <don.morris@...com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Subject: Re: [PATCH 00/36] AutoNUMA24

On 08/22/2012 10:58 AM, Andrea Arcangeli wrote:
> Hello everyone,
>
> Before the Kernel Summit, I think it's good idea to post a new
> AutoNUMA24 and to go through a new review cycle. The last review cycle
> has been fundamental in improving the patchset. Thanks!

Thanks for improving the code and incorporating all our
feedback. The AutoNUMA codebase is now in a state where
I can live with it.

I hope the code will be acceptable to others, too.

> The objective of AutoNUMA is to be able to perform as close as
> possible to (and sometime faster than) the NUMA hard CPU/memory
> bindings setups, without requiring the administrator to manually setup
> any NUMA hard bind.

It is a difficult problem, but the performance numbers
I have seen before (with older versions) seem to suggest
that AutoNUMA is accomplishing the goal.
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