From: Ray Bryant <raybry@engr.sgi.com>
To: Andi Kleen <ak@suse.de>
Cc: Ray Bryant <raybry@sgi.com>,
Hirokazu Takahashi <taka@valinux.co.jp>,
Dave Hansen <haveblue@us.ibm.com>,
Marcelo Tosatti <marcelo.tosatti@cyclades.com>,
Christoph Hellwig <hch@infradead.org>,
Ray Bryant <raybry@austin.rr.com>, linux-mm <linux-mm@kvack.org>,
lhms-devel@lists.sourceforge.net, Paul Jackson <pj@sgi.com>,
Nathan Scott <nathans@sgi.com>
Subject: Re: [Lhms-devel] Re: [PATCH 2.6.12-rc5 5/10] mm: manual page migration-rc3 -- sys_migrate_pages-mempolicy-migration-rc3.patch
Date: Sat, 25 Jun 2005 00:11:46 -0500 [thread overview]
Message-ID: <42BCE792.5090507@engr.sgi.com> (raw)
In-Reply-To: <20050623210524.GN14251@wotan.suse.de>
Andi Kleen wrote:
>
> On the other hand tmpfs is not really memory belonging to a single
> process only so it is not clear if process migration should touch
> should a shared resource.
>
I think the way this should work is as follows: if a VMA maps a
shared object, and it meets the criterion for being a migratable
VMA (e. g. vm_write is set), then we migrate the data and the
policy.
This isn't perfect, since pages in the shared object that are not
mapped won't be migrated. Perhaps we need a utility to fix that
up after the fact.
--
Best Regards,
Ray
-----------------------------------------------
Ray Bryant
512-453-9679 (work) 512-507-7807 (cell)
raybry@sgi.com raybry@austin.rr.com
The box said: "Requires Windows 98 or better",
so I installed Linux.
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next prev parent reply other threads:[~2005-06-25 5:11 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-22 16:39 [PATCH 2.6.12-rc5 0/10] mm: manual page migration-rc3 -- overview Ray Bryant
2005-06-22 16:39 ` [PATCH 2.6.12-rc5 1/10] mm: hirokazu-steal_page_from_lru.patch Ray Bryant
2005-06-22 16:39 ` [PATCH 2.6.12-rc5 2/10] mm: manual page migration-rc3 -- xfs-migrate-page-rc3.patch Ray Bryant
2005-06-22 17:30 ` [Lhms-devel] " Joel Schopp
2005-06-23 4:01 ` Nathan Scott
2005-06-22 16:39 ` [PATCH 2.6.12-rc5 3/10] mm: manual page migration-rc3 -- add-node_map-arg-to-try_to_migrate_pages-rc3.patch Ray Bryant
2005-06-22 16:39 ` [PATCH 2.6.12-rc5 4/10] mm: manual page migration-rc3 -- add-sys_migrate_pages-rc3.patch Ray Bryant
2005-06-22 17:23 ` Dave Hansen
2005-06-23 1:34 ` Ray Bryant
2005-06-23 1:42 ` Dave Hansen
2005-06-25 10:32 ` Hirokazu Takahashi
2005-06-22 16:39 ` [PATCH 2.6.12-rc5 5/10] mm: manual page migration-rc3 -- sys_migrate_pages-mempolicy-migration-rc3.patch Ray Bryant
2005-06-23 1:51 ` Andi Kleen
2005-06-23 20:59 ` [Lhms-devel] " Ray Bryant
2005-06-23 21:05 ` Andi Kleen
2005-06-25 5:11 ` Ray Bryant [this message]
2005-06-22 16:39 ` [PATCH 2.6.12-rc5 6/10] mm: manual page migration-rc3 -- add-mempolicy-control-rc3.patch Ray Bryant
2005-06-22 16:39 ` [PATCH 2.6.12-rc5 7/10] mm: manual page migration-rc3 -- sys_migrate_pages-migration-selection-rc3.patch Ray Bryant
2005-06-22 16:40 ` [PATCH 2.6.12-rc5 8/10] mm: manual page migration-rc3 -- sys_migrate_pages-cpuset-support-rc3.patch Ray Bryant
2005-06-22 16:40 ` [PATCH 2.6.12-rc5 9/10] mm: manual page migration-rc3 -- sys_migrate_pages-permissions-check-rc3.patch Ray Bryant
2005-06-22 16:40 ` [PATCH 2.6.12-rc5 10/10] mm: manual page migration-rc3 -- N1.2-add-nodemap-to-try_to_migrate_pages-call.patch Ray Bryant
2005-06-23 21:31 ` [PATCH 2.6.12-rc5 0/10] mm: manual page migration-rc3 -- overview Christoph Lameter
2005-06-23 23:00 ` Ray Bryant
2005-06-23 23:03 ` Christoph Lameter
2005-06-24 14:15 ` [Lhms-devel] " Ray Bryant
2005-06-24 15:41 ` Christoph Lameter
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