From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
To: Andi Kleen <ak@linux.intel.com>
Cc: kosaki.motohiro@jp.fujitsu.com, Andi Kleen <andi@firstfloor.org>,
akpm@linux-foundation.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, aarcange@redhat.com
Subject: Re: [PATCH 6/8] Add __GFP_OTHER_NODE flag
Date: Tue, 8 Mar 2011 09:19:06 +0900 (JST) [thread overview]
Message-ID: <20110308091843.8A95.A69D9226@jp.fujitsu.com> (raw)
In-Reply-To: <20110307163334.GB13384@alboin.amr.corp.intel.com>
> > Yes, less intrusive. But are you using current NUMA stastics on
> > practical system?
>
> Yes I do. I know users use it too.
>
> We unfortunately still have enough NUMA locality problems in the kernel
> so that overflowing nodes, causing fallbacks for process memory etc. are not uncommon.
> If you get that then numastat is very useful to track down what happens.
>
> In an ideal world with perfect NUMA balancing it wouldn't be needed,
> but we're far from that.
>
> Also the numactl test suite depends on them.
If so, I have no objection of cource. :)
Thanks.
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next prev parent reply other threads:[~2011-03-08 0:19 UTC|newest]
Thread overview: 31+ 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
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 [this message]
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 6/8] Add __GFP_OTHER_NODE flag Andi Kleen
2011-03-03 2:33 ` KAMEZAWA Hiroyuki
2011-02-23 1:51 Fix NUMA problems in transparent hugepages v2 Andi Kleen
2011-02-23 1:52 ` [PATCH 6/8] Add __GFP_OTHER_NODE flag Andi Kleen
2011-02-21 19:07 Fix NUMA problems in transparent hugepages and KSM Andi Kleen
2011-02-21 19:07 ` [PATCH 6/8] Add __GFP_OTHER_NODE flag Andi Kleen
2011-02-22 21:42 ` David Rientjes
2011-02-22 21:47 ` Andi Kleen
2011-02-22 22:08 ` David Rientjes
2011-02-22 22:52 ` Andi Kleen
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