From: Christoph Lameter <clameter@sgi.com>
To: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Mel Gorman <mel@csn.ul.ie>,
Lee.Schermerhorn@hp.com, akpm@linux-foundation.org, ak@suse.de,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH 4/6] Embed zone_id information within the zonelist->zones pointer
Date: Wed, 12 Sep 2007 10:06:49 -0700 (PDT) [thread overview]
Message-ID: <Pine.LNX.4.64.0709121005090.1144@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <20070912165138.5deb4db4.kamezawa.hiroyu@jp.fujitsu.com>
On Wed, 12 Sep 2007, KAMEZAWA Hiroyuki wrote:
> If we really want to avoid unnecessary access to "zone" while walking zonelist,
> above may do something good. Cons is this makes sizeof zonlist bigger.
The trouble is that the size of the zonelist would double with this
approach. We have long zonelists and doubling the size could double
the cachelines needed to be touched in order to scan the zonelists.
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next prev parent reply other threads:[~2007-09-12 17:06 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-11 21:30 [PATCH 0/6] Use one zonelist per node instead of multiple zonelists v5 (resend) Mel Gorman
2007-09-11 21:30 ` [PATCH 1/6] Use zonelists instead of zones when direct reclaiming pages Mel Gorman
2007-09-11 21:30 ` [PATCH 2/6] Introduce node_zonelist() for accessing the zonelist for a GFP mask Mel Gorman
2007-09-11 21:31 ` [PATCH 3/6] Use two zonelist that are filtered by " Mel Gorman
2007-09-11 21:31 ` [PATCH 4/6] Embed zone_id information within the zonelist->zones pointer Mel Gorman
2007-09-12 7:51 ` KAMEZAWA Hiroyuki
2007-09-12 8:32 ` Mel Gorman
2007-09-12 17:06 ` Christoph Lameter [this message]
2007-09-11 21:31 ` [PATCH 5/6] Filter based on a nodemask as well as a gfp_mask Mel Gorman
2007-09-11 21:32 ` [PATCH 6/6] Use one zonelist that is filtered by nodemask Mel Gorman
2007-09-12 20:27 ` [PATCH 0/6] Use one zonelist per node instead of multiple zonelists v5 (resend) Lee Schermerhorn
2007-09-13 10:11 ` Mel Gorman
-- strict thread matches above, loose matches on Subject: below --
2007-09-11 15:19 [PATCH 0/6] Use one zonelist per node instead of multiple zonelists v5 Mel Gorman
2007-09-11 15:20 ` [PATCH 4/6] Embed zone_id information within the zonelist->zones pointer Mel Gorman
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