From: Luiz Capitulino <lcapitulino@redhat.com>
To: Andi Kleen <andi@firstfloor.org>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
akpm@linux-foundation.org, mtosatti@redhat.com, mgorman@suse.de,
aarcange@redhat.com, riel@redhat.com
Subject: Re: [PATCH 0/4] hugetlb: add hugepagesnid= command-line option
Date: Tue, 11 Feb 2014 16:31:08 -0500 [thread overview]
Message-ID: <20140211163108.3136d55a@redhat.com> (raw)
In-Reply-To: <20140211211732.GS11821@two.firstfloor.org>
On Tue, 11 Feb 2014 22:17:32 +0100
Andi Kleen <andi@firstfloor.org> wrote:
> On Mon, Feb 10, 2014 at 12:27:44PM -0500, Luiz Capitulino wrote:
> > HugeTLB command-line option hugepages= allows the user to specify how many
> > huge pages should be allocated at boot. On NUMA systems, this argument
> > automatically distributes huge pages allocation among nodes, which can
> > be undesirable.
> >
> > The hugepagesnid= option introduced by this commit allows the user
> > to specify which NUMA nodes should be used to allocate boot-time HugeTLB
> > pages. For example, hugepagesnid=0,2,2G will allocate two 2G huge pages
> > from node 0 only. More details on patch 3/4 and patch 4/4.
>
> The syntax seems very confusing. Can you make that more obvious?
I guess that my bad description in this email may have contributed to make
it look confusing.
The real syntax is hugepagesnid=nid,nr-pages,size. Which looks straightforward
to me. I honestly can't think of anything better than that, but I'm open for
suggestions.
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next prev parent reply other threads:[~2014-02-11 21:31 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-10 17:27 [PATCH 0/4] hugetlb: add hugepagesnid= command-line option Luiz Capitulino
2014-02-10 17:27 ` [PATCH 1/4] memblock: memblock_virt_alloc_internal(): alloc from specified node only Luiz Capitulino
2014-02-10 23:27 ` Andrew Morton
2014-02-11 9:20 ` Mel Gorman
2014-02-10 17:27 ` [PATCH 2/4] memblock: add memblock_virt_alloc_nid_nopanic() Luiz Capitulino
2014-02-10 17:27 ` [PATCH 3/4] hugetlb: add hugepagesnid= command-line option Luiz Capitulino
2014-02-10 23:27 ` Andrew Morton
2014-02-11 15:26 ` Luiz Capitulino
2014-02-12 3:44 ` Yasuaki Ishimatsu
2014-02-12 19:39 ` Luiz Capitulino
2014-02-10 17:27 ` [PATCH 4/4] hugetlb: hugepagesnid=: add 1G huge page support Luiz Capitulino
2014-02-10 23:30 ` Andrew Morton
2014-02-11 15:27 ` Luiz Capitulino
2014-02-10 17:55 ` [PATCH 0/4] hugetlb: add hugepagesnid= command-line option Luiz Capitulino
2014-02-10 23:13 ` Andrew Morton
2014-02-11 3:58 ` Davidlohr Bueso
2014-02-11 15:10 ` Luiz Capitulino
2014-02-11 2:54 ` David Rientjes
2014-02-11 9:25 ` Mel Gorman
2014-02-11 15:26 ` Marcelo Tosatti
2014-02-11 17:10 ` Mel Gorman
2014-02-11 20:15 ` Marcelo Tosatti
2014-02-12 10:39 ` Mel Gorman
2014-02-11 15:36 ` Luiz Capitulino
2014-02-12 3:59 ` David Rientjes
2014-02-12 20:09 ` Luiz Capitulino
2014-02-11 21:17 ` Andi Kleen
2014-02-11 21:31 ` Luiz Capitulino [this message]
2014-02-12 2:37 ` Andi Kleen
2014-02-12 4:01 ` David Rientjes
2014-02-12 19:33 ` Luiz Capitulino
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