linux-kernel - Re: Avoid allocating during interleave from almost full nodes

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Message-Id: <20061108090644.f23d37de.pj@sgi.com>
Date:	Wed, 8 Nov 2006 09:06:44 -0800
From:	Paul Jackson <pj@....com>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc:	clameter@....com, akpm@...l.org, linux-kernel@...r.kernel.org
Subject: Re: Avoid allocating during interleave from almost full nodes

Peter wrote:
> global fault counter

I hope we avoid frequently updated, widely accessed global
counters.  They tend to create hot cache lines on big NUMA
boxes.

Christoph said that the counters he was suggesting were
node or cpu local.  That sounds good to me.

-- 
                  I won't rest till it's the best ...
                  Programmer, Linux Scalability
                  Paul Jackson <pj@....com> 1.925.600.0401
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