From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
To: Andi Kleen <andi@firstfloor.org>
Cc: kosaki.motohiro@jp.fujitsu.com, akpm@linux-foundation.org,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Andi Kleen <ak@linux.intel.com>
Subject: Re: [PATCH 5/8] Use correct numa policy node for transparent hugepages
Date: Mon, 7 Mar 2011 17:38:53 +0900 (JST) [thread overview]
Message-ID: <20110307173838.8A10.A69D9226@jp.fujitsu.com> (raw)
In-Reply-To: <1299182391-6061-6-git-send-email-andi@firstfloor.org>
> From: Andi Kleen <ak@linux.intel.com>
>
> Pass down the correct node for a transparent hugepage allocation.
> Most callers continue to use the current node, however the hugepaged
> daemon now uses the previous node of the first to be collapsed page
> instead. This ensures that khugepaged does not mess up local memory
> for an existing process which uses local policy.
>
> The choice of node is somewhat primitive currently: it just
> uses the node of the first page in the pmd range. An alternative
> would be to look at multiple pages and use the most popular
> node. I used the simplest variant for now which should work
> well enough for the case of all pages being on the same node.
>
> Acked-by: Andrea Arcangeli <aarcange@redhat.com>
> Signed-off-by: Andi Kleen <ak@linux.intel.com>
> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
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next prev parent reply other threads:[~2011-03-07 8:38 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-03 19:59 Fix NUMA problems in transparent hugepages and KSM Andi Kleen
2011-03-03 19:59 ` [PATCH 1/8] Fix interleaving for transparent hugepages v2 Andi Kleen
2011-03-03 19:59 ` [PATCH 2/8] Change alloc_pages_vma to pass down the policy node for local policy Andi Kleen
2011-03-07 8:36 ` KOSAKI Motohiro
2011-03-03 19:59 ` [PATCH 3/8] Add alloc_page_vma_node Andi Kleen
2011-03-07 8:37 ` KOSAKI Motohiro
2011-03-03 19:59 ` [PATCH 4/8] Preserve original node for transparent huge page copies Andi Kleen
2011-03-07 8:37 ` KOSAKI Motohiro
2011-03-03 19:59 ` [PATCH 5/8] Use correct numa policy node for transparent hugepages Andi Kleen
2011-03-07 8:38 ` KOSAKI Motohiro [this message]
2011-03-03 19:59 ` [PATCH 6/8] Add __GFP_OTHER_NODE flag Andi Kleen
2011-03-07 8:34 ` KOSAKI Motohiro
2011-03-07 16:33 ` Andi Kleen
2011-03-08 0:19 ` KOSAKI Motohiro
2011-03-03 19:59 ` [PATCH 7/8] Use GFP_OTHER_NODE for transparent huge pages Andi Kleen
2011-03-03 19:59 ` [PATCH 8/8] Add VM counters for transparent hugepages Andi Kleen
2011-03-07 8:28 ` KOSAKI Motohiro
2011-03-07 16:35 ` Andi Kleen
2011-03-08 2:43 ` KOSAKI Motohiro
2011-03-30 21:45 ` Andrew Morton
2011-03-30 23:30 ` Andi Kleen
2011-03-31 0:52 ` KOSAKI Motohiro
2011-03-31 0:56 ` Andi Kleen
-- strict thread matches above, loose matches on Subject: below --
2011-03-03 0:45 Fix NUMA problems in transparent hugepages and KSM Andi Kleen
2011-03-03 0:45 ` [PATCH 5/8] Use correct numa policy node for transparent hugepages Andi Kleen
2011-03-03 2:26 ` KAMEZAWA Hiroyuki
2011-02-23 1:51 Fix NUMA problems in transparent hugepages v2 Andi Kleen
2011-02-23 1:51 ` [PATCH 5/8] Use correct numa policy node for transparent hugepages Andi Kleen
2011-02-21 19:07 Fix NUMA problems in transparent hugepages and KSM Andi Kleen
2011-02-21 19:07 ` [PATCH 5/8] Use correct numa policy node for transparent hugepages Andi Kleen
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