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From: Andrew Morton <akpm@osdl.org>
To: "Martin J. Bligh" <mbligh@mbligh.org>
Cc: linux-kernel@vger.kernel.org, colpatch@us.ibm.com
Subject: Re: [PATCH] Fix NUMA node sizing in nr_free_zone_pages
Date: Fri, 29 Jul 2005 13:05:58 -0700	[thread overview]
Message-ID: <20050729130558.22039a95.akpm@osdl.org> (raw)
In-Reply-To: <240970000.1122661910@[10.10.2.4]>

"Martin J. Bligh" <mbligh@mbligh.org> wrote:
>
>  We are iterating over all nodes in nr_free_zone_pages(). Because the 
>  fallback zonelists contain all nodes in the system, and we walk all
>  the zonelists, we're counting memory multiple times (once for each
>  node). This caused us to make a size estimate of 32GB for an 8GB
>  AMD64 box, which makes all the dirty ratio calculations, etc incorrect.

Thanks, Martin.

Just for reference: this patch addresses the "Memory pressure handling with
iSCSI" problems which Badari Pulavarty reported.


  reply	other threads:[~2005-07-29 20:12 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-07-29 18:31 [PATCH] Fix NUMA node sizing in nr_free_zone_pages Martin J. Bligh
2005-07-29 20:05 ` Andrew Morton [this message]
2005-07-30  5:40 ` Andrew Morton
2005-07-30 13:49   ` Martin J. Bligh

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