linux-kernel - Re: [PATCH 00/33] AutoNUMA27

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Message-ID: <m24nm8wly3.fsf@firstfloor.org>
Date:	Fri, 05 Oct 2012 16:14:44 -0700
From:	Andi Kleen <andi@...stfloor.org>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Andrea Arcangeli <aarcange@...hat.com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Peter Zijlstra <pzijlstr@...hat.com>,
	Ingo Molnar <mingo@...e.hu>, Mel Gorman <mel@....ul.ie>,
	Hugh Dickins <hughd@...gle.com>,
	Rik van Riel <riel@...hat.com>,
	Johannes Weiner <hannes@...xchg.org>,
	Hillf Danton <dhillf@...il.com>,
	Andrew Jones <drjones@...hat.com>,
	Dan Smith <danms@...ibm.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Paul Turner <pjt@...gle.com>, Christoph Lameter <cl@...ux.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>,
	Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>,
	Alex Shi <alex.shi@...el.com>,
	Mauricio Faria de Oliveira <mauricfo@...ux.vnet.ibm.com>,
	Konrad@...ux.intel.com
Subject: Re: [PATCH 00/33] AutoNUMA27

Andrew Morton <akpm@...ux-foundation.org> writes:

> On Thu,  4 Oct 2012 01:50:42 +0200
> Andrea Arcangeli <aarcange@...hat.com> wrote:
>
>> This is a new AutoNUMA27 release for Linux v3.6.
>
> Peter's numa/sched patches have been in -next for a week. 

Did they pass review? I have some doubts.

The last time I looked it also broke numactl.

> Guys, what's the plan here?

Since they are both performance features their ultimate benefit
is how much faster they make things (and how seldom they make things
slower)

IMHO needs a performance shot-out. Run both on the same 10 workloads
and see who wins. Just a lot of of work. Any volunteers?

For a change like this I think less regression is actually more
important than the highest peak numbers.

-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only
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