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Date: Mon, 6 Nov 2006 08:56:15 -0800 (PST)
From: Christoph Lameter <clameter@sgi.com>
To: Paul Jackson <pj@sgi.com>
cc: Andrew Morton <akpm@osdl.org>, linux-kernel@vger.kernel.org
Subject: Re: Avoid allocating during interleave from almost full nodes
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On Sat, 4 Nov 2006, Paul Jackson wrote:

>   Do you know of any existing counters that we could use like this?
> 
> Adding a system wide count of pages allocated or scanned, just for
> these fullnode hint caches, bothers me.

There are already such counters. PGALLOC_* and PGSCAN_*. See 
include/linux/vmstat.h

> Perhaps best if we used a node or cpu local counter.

The counters are per cpu and are cpu local.