From: Dave Hansen <dave@linux.vnet.ibm.com>
To: Nishanth Aravamudan <nacc@us.ibm.com>
Cc: Andi Kleen <andi@firstfloor.org>,
npiggin@suse.de, akpm@linux-foundation.org, linux-mm@kvack.org,
kniht@linux.vnet.ibm.com, abh@cray.com, wli@holomorphy.com
Subject: Re: [patch 18/18] hugetlb: my fixes 2
Date: Wed, 23 Apr 2008 15:06:39 -0700 [thread overview]
Message-ID: <1208988399.12718.12.camel@nimitz.home.sr71.net> (raw)
In-Reply-To: <20080423211136.GG10548@us.ibm.com>
On Wed, 2008-04-23 at 14:11 -0700, Nishanth Aravamudan wrote:
> hugepagesz=16G hugepages=2 hugepages=20 hugepagesz=64k hugepages=40
> hugepagesz=16G hugepages=2 hugepagesz=16M hugepages=20 hugepagesz=64k
> hugepages=40
>
> allocates 2 16G hugepages, 20 16M hugepages and 40 64K
> hugepages
>
> hugepagesz=64k hugepages=40
>
> allocates 40 64k hugepages
Following up after a chat on irc...
How about letting hugepages take a size argument:
hugepages=33G
That would allocate 2 16G pages, then 1GB of 16M pages. If there were
any remainder, then the rest in 64k pages. Actually instantiating the
pages could be left to when the mounts are created.
I'm just not sure there's a really good reason to be specifying the
hugepagesz= at boot-time when we really don't need to commit to it at
that point.
That said, can ppc64 16G pages ever get used as 16M or 64K pages?
-- Dave
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next prev parent reply other threads:[~2008-04-23 22:07 UTC|newest]
Thread overview: 123+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-23 1:53 [patch 00/18] multi size, and giant hugetlb page support, 1GB hugetlb for x86 npiggin
2008-04-23 1:53 ` [patch 01/18] hugetlb: fix lockdep spew npiggin
2008-04-23 13:06 ` KOSAKI Motohiro
2008-04-23 1:53 ` [patch 02/18] hugetlb: factor out huge_new_page npiggin
2008-04-24 23:49 ` Nishanth Aravamudan
2008-04-24 23:54 ` Nishanth Aravamudan
2008-04-24 23:58 ` Nishanth Aravamudan
2008-04-25 7:10 ` Andi Kleen
2008-04-25 16:54 ` Nishanth Aravamudan
2008-04-25 19:13 ` Christoph Lameter
2008-04-25 19:29 ` Nishanth Aravamudan
2008-04-30 19:16 ` Christoph Lameter
2008-04-30 20:44 ` Nishanth Aravamudan
2008-05-01 19:23 ` Christoph Lameter
2008-05-01 20:25 ` Nishanth Aravamudan
2008-05-01 20:34 ` Christoph Lameter
2008-05-01 21:01 ` Nishanth Aravamudan
2008-05-23 5:03 ` Nick Piggin
2008-04-23 1:53 ` [patch 03/18] mm: offset align in alloc_bootmem npiggin, Yinghai Lu
2008-04-23 1:53 ` [patch 04/18] hugetlb: modular state npiggin
2008-04-23 15:21 ` Jon Tollefson
2008-04-23 15:38 ` Nick Piggin
2008-04-25 17:13 ` Nishanth Aravamudan
2008-05-23 5:02 ` Nick Piggin
2008-05-23 20:48 ` Nishanth Aravamudan
2008-04-23 1:53 ` [patch 05/18] hugetlb: multiple hstates npiggin
2008-04-25 17:38 ` Nishanth Aravamudan
2008-04-25 17:48 ` Nishanth Aravamudan
2008-04-25 17:55 ` Andi Kleen
2008-04-25 17:52 ` Nishanth Aravamudan
2008-04-25 18:10 ` Andi Kleen
2008-04-28 10:13 ` Andy Whitcroft
2008-05-23 5:18 ` Nick Piggin
2008-04-29 17:27 ` Nishanth Aravamudan
2008-05-23 5:19 ` Nick Piggin
2008-04-23 1:53 ` [patch 06/18] hugetlb: multi hstate proc files npiggin
2008-05-02 19:53 ` Nishanth Aravamudan
2008-05-23 5:22 ` Nick Piggin
2008-05-23 20:30 ` Nishanth Aravamudan
2008-04-23 1:53 ` [patch 07/18] hugetlbfs: per mount hstates npiggin
2008-04-25 18:09 ` Nishanth Aravamudan
2008-04-25 20:36 ` Nishanth Aravamudan
2008-04-25 22:39 ` Nishanth Aravamudan
2008-04-28 18:20 ` Adam Litke
2008-04-28 18:46 ` Nishanth Aravamudan
2008-05-23 5:24 ` Nick Piggin
2008-05-23 20:34 ` Nishanth Aravamudan
2008-05-23 22:49 ` Nick Piggin
2008-05-23 23:24 ` Nishanth Aravamudan
2008-04-23 1:53 ` [patch 08/18] hugetlb: multi hstate sysctls npiggin
2008-04-25 18:14 ` Nishanth Aravamudan
2008-05-23 5:25 ` Nick Piggin
2008-05-23 20:27 ` Nishanth Aravamudan
2008-04-25 23:35 ` Nishanth Aravamudan
2008-05-23 5:28 ` Nick Piggin
2008-05-23 10:40 ` Andi Kleen
2008-04-23 1:53 ` [patch 09/18] hugetlb: abstract numa round robin selection npiggin
2008-04-23 1:53 ` [patch 10/18] mm: introduce non panic alloc_bootmem npiggin
2008-04-23 1:53 ` [patch 11/18] mm: export prep_compound_page to mm npiggin
2008-04-23 16:12 ` Andrew Hastings
2008-05-23 5:29 ` Nick Piggin
2008-04-23 1:53 ` [patch 12/18] hugetlbfs: support larger than MAX_ORDER npiggin
2008-04-23 16:15 ` Andrew Hastings
2008-04-23 16:25 ` Andi Kleen
2008-04-25 18:55 ` Nishanth Aravamudan
2008-05-23 5:29 ` Nick Piggin
2008-04-30 21:01 ` Dave Hansen
2008-05-23 5:30 ` Nick Piggin
2008-04-23 1:53 ` [patch 13/18] hugetlb: support boot allocate different sizes npiggin
2008-04-23 16:15 ` Andrew Hastings
2008-04-25 18:40 ` Nishanth Aravamudan
2008-04-25 18:50 ` Andi Kleen
2008-04-25 20:05 ` Nishanth Aravamudan
2008-05-23 5:36 ` Nick Piggin
2008-05-23 6:04 ` Nick Piggin
2008-05-23 20:32 ` Nishanth Aravamudan
2008-05-23 22:45 ` Nick Piggin
2008-05-23 22:53 ` Nishanth Aravamudan
2008-04-23 1:53 ` [patch 14/18] hugetlb: printk cleanup npiggin
2008-04-27 3:32 ` Nishanth Aravamudan
2008-05-23 5:37 ` Nick Piggin
2008-04-23 1:53 ` [patch 15/18] hugetlb: introduce huge_pud npiggin
2008-04-23 1:53 ` [patch 16/18] x86: support GB hugepages on 64-bit npiggin
2008-04-23 1:53 ` [patch 17/18] x86: add hugepagesz option " npiggin
2008-04-30 19:34 ` Nishanth Aravamudan
2008-04-30 19:52 ` Andi Kleen
2008-04-30 20:02 ` Nishanth Aravamudan
2008-04-30 20:19 ` Andi Kleen
2008-04-30 20:23 ` Nishanth Aravamudan
2008-04-30 20:45 ` Andi Kleen
2008-04-30 20:51 ` Nishanth Aravamudan
2008-04-30 20:40 ` Jon Tollefson
2008-04-30 20:48 ` Nishanth Aravamudan
2008-05-23 5:41 ` Nick Piggin
2008-05-23 10:43 ` Andi Kleen
2008-05-23 12:34 ` Nick Piggin
2008-05-23 14:29 ` Andi Kleen
2008-05-23 20:43 ` Nishanth Aravamudan
2008-05-23 20:39 ` Nishanth Aravamudan
2008-05-23 22:52 ` Nick Piggin
2008-04-23 1:53 ` [patch 18/18] hugetlb: my fixes 2 npiggin
2008-04-23 10:48 ` Andi Kleen
2008-04-23 15:36 ` Nick Piggin
2008-04-23 18:49 ` Nishanth Aravamudan
2008-04-23 19:37 ` Andi Kleen
2008-04-23 21:11 ` Nishanth Aravamudan
2008-04-23 21:38 ` Nishanth Aravamudan
2008-04-23 22:06 ` Dave Hansen [this message]
2008-04-23 15:20 ` Jon Tollefson
2008-04-23 15:44 ` Nick Piggin
2008-04-23 8:05 ` [patch 00/18] multi size, and giant hugetlb page support, 1GB hugetlb for x86 Andi Kleen
2008-04-23 15:34 ` Nick Piggin
2008-04-23 15:46 ` Andi Kleen
2008-04-23 15:53 ` Nick Piggin
2008-04-23 16:02 ` Andi Kleen
2008-04-23 16:02 ` Nick Piggin
2008-04-23 18:54 ` Nishanth Aravamudan
2008-04-23 18:52 ` Nishanth Aravamudan
2008-04-24 2:08 ` Nick Piggin
2008-04-24 6:43 ` Nishanth Aravamudan
2008-04-24 7:06 ` Nick Piggin
2008-04-24 17:08 ` Nishanth Aravamudan
2008-04-23 18:43 ` Nishanth Aravamudan
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