linux-kernel - Re: [PATCH 02/10] mm: system wide ALLOC_NO

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Message-Id: <200708061143.25583.phillips@phunq.net>
Date:	Mon, 6 Aug 2007 11:43:25 -0700
From:	Daniel Phillips <phillips@...nq.net>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc:	Christoph Lameter <clameter@....com>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, David Miller <davem@...emloft.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Daniel Phillips <phillips@...gle.com>,
	Pekka Enberg <penberg@...helsinki.fi>,
	Matt Mackall <mpm@...enic.com>,
	Lee Schermerhorn <Lee.Schermerhorn@...com>,
	Steve Dickson <SteveD@...hat.com>
Subject: Re: [PATCH 02/10] mm: system wide ALLOC_NO_WATERMARK

On Monday 06 August 2007 11:31, Peter Zijlstra wrote:
> > I agree that the reserve pool should be per-node in the end, but I
> > do not think that serves the interest of simplifying the initial
> > patch set.  How about a numa performance patch that adds onto the
> > end of Peter's series?
>
> Trouble with keeping this per node is that all the code dealing with
> the reserve needs to keep per-cpu state, which given that the system
> is really crawling at that moment, seems excessive.

It does.  I was suggesting that Christoph think about the NUMA part, our 
job just to save the world ;-)

Regards,

Daniel
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