From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: mtk.manpages@gmail.com
Cc: Andi Kleen <andi@firstfloor.org>, Andi Kleen <ak@linux.intel.com>,
akpm@linux-foundation.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, Hillf Danton <dhillf@gmail.com>
Subject: Re: [PATCH] MM: Support more pagesizes for MAP_HUGETLB/SHM_HUGETLB v6
Date: Tue, 23 Oct 2012 12:45:09 +1100 [thread overview]
Message-ID: <1350956709.2728.20.camel@pasglop> (raw)
In-Reply-To: <CAKgNAkjsGp9HUpvhUfqbXnfrLbBsQRAKvOs=41-w3ZAE7yX+cA@mail.gmail.com>
On Mon, 2012-10-22 at 18:23 +0200, Michael Kerrisk (man-pages) wrote:
> Since PowerPC already allows 16GB page sizes, doesn't there need to be
> allowance for the possibility of future expansion? Choosing a larger
> minimum size (like 2^16) would allow that. Does the minimum size need
> to be 16k? (Surely, if you want a HUGEPAGE, you want a bigger page
> than that? I am not sure.)
I can't say for sure what we're going to come up with in 5 years but so
far, I am not aware of plans to go beyond 16G just yet :-)
Cheers,
Ben.
WARNING: multiple messages have this Message-ID (diff)
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: mtk.manpages@gmail.com
Cc: Andi Kleen <andi@firstfloor.org>, Andi Kleen <ak@linux.intel.com>,
akpm@linux-foundation.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, Hillf Danton <dhillf@gmail.com>
Subject: Re: [PATCH] MM: Support more pagesizes for MAP_HUGETLB/SHM_HUGETLB v6
Date: Tue, 23 Oct 2012 12:45:09 +1100 [thread overview]
Message-ID: <1350956709.2728.20.camel@pasglop> (raw)
In-Reply-To: <CAKgNAkjsGp9HUpvhUfqbXnfrLbBsQRAKvOs=41-w3ZAE7yX+cA@mail.gmail.com>
On Mon, 2012-10-22 at 18:23 +0200, Michael Kerrisk (man-pages) wrote:
> Since PowerPC already allows 16GB page sizes, doesn't there need to be
> allowance for the possibility of future expansion? Choosing a larger
> minimum size (like 2^16) would allow that. Does the minimum size need
> to be 16k? (Surely, if you want a HUGEPAGE, you want a bigger page
> than that? I am not sure.)
I can't say for sure what we're going to come up with in 5 years but so
far, I am not aware of plans to go beyond 16G just yet :-)
Cheers,
Ben.
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next prev parent reply other threads:[~2012-10-23 3:01 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-19 16:48 [PATCH] MM: Support more pagesizes for MAP_HUGETLB/SHM_HUGETLB v6 Andi Kleen
2012-10-19 16:48 ` Andi Kleen
2012-10-20 3:39 ` Hillf Danton
2012-10-20 3:39 ` Hillf Danton
2012-10-22 11:27 ` Michael Kerrisk
2012-10-22 11:27 ` Michael Kerrisk
2012-10-22 13:27 ` Andi Kleen
2012-10-22 13:27 ` Andi Kleen
2012-10-22 13:35 ` Andi Kleen
2012-10-22 13:35 ` Andi Kleen
2012-10-22 13:56 ` Michael Kerrisk (man-pages)
2012-10-22 13:56 ` Michael Kerrisk (man-pages)
2012-10-22 15:36 ` Andi Kleen
2012-10-22 15:36 ` Andi Kleen
2012-10-22 15:53 ` Michael Kerrisk (man-pages)
2012-10-22 15:53 ` Michael Kerrisk (man-pages)
2012-10-22 16:11 ` Andi Kleen
2012-10-22 16:11 ` Andi Kleen
2012-10-22 16:23 ` Michael Kerrisk (man-pages)
2012-10-22 16:23 ` Michael Kerrisk (man-pages)
2012-10-22 16:29 ` Andi Kleen
2012-10-22 16:29 ` Andi Kleen
2012-10-22 16:42 ` Michael Kerrisk (man-pages)
2012-10-22 16:42 ` Michael Kerrisk (man-pages)
2012-10-23 1:45 ` Benjamin Herrenschmidt [this message]
2012-10-23 1:45 ` Benjamin Herrenschmidt
2012-10-23 1:44 ` Benjamin Herrenschmidt
2012-10-23 1:44 ` Benjamin Herrenschmidt
2012-10-23 2:28 ` Andi Kleen
2012-10-23 2:28 ` Andi Kleen
2012-10-23 7:37 ` Michael Kerrisk (man-pages)
2012-10-23 7:37 ` Michael Kerrisk (man-pages)
2012-10-23 13:39 ` Andi Kleen
2012-10-23 13:39 ` Andi Kleen
2012-10-23 22:56 ` Valdis.Kletnieks
2012-10-22 21:39 ` Andrew Morton
2012-10-22 21:39 ` Andrew Morton
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