From: Robin Holt <holt@sgi.com>
To: Ray Bryant <raybry@sgi.com>
Cc: Steve Longerbeam <stevel@mvista.com>, Andi Kleen <ak@muc.de>,
Hirokazu Takahashi <taka@valinux.co.jp>,
Dave Hansen <haveblue@us.ibm.com>,
Marcello Tosatti <marcelo.tosatti@cyclades.com>,
Kernel Mailing List <linux-kernel@vger.kernel.org>,
linux-mm <linux-mm@kvack.org>, andrew morton <akpm@osdl.org>
Subject: Re: page migration patchset
Date: Wed, 12 Jan 2005 06:35:24 -0600 [thread overview]
Message-ID: <20050112123524.GA12843@lnx-holt.americas.sgi.com> (raw)
In-Reply-To: <41E3F2DA.5030900@sgi.com>
On Tue, Jan 11, 2005 at 09:38:02AM -0600, Ray Bryant wrote:
> Pages that are found to be swapped out would be handled as follows:
> Add the original node id to either the swap pte or the swp_entry_t.
> Swap in will be modified to allocate the page on the same node it
> came from. Then, as part of migrate_process_pages, all that would
> be done for swapped out pages would be to change the "original node"
> field to point at the new node.
>
> However, I could probably do both steps (2) and (3) as part of the
> migrate_process_pages() call.
I don't think we need to worry about the swap case. Let's keep the
changes small and build when we see problems. The normal swap
out/in mechanism should handle nearly all the page migration issues
you are concerned with.
Just my 2 cents,
Robin
next prev parent reply other threads:[~2005-01-12 12:36 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-05 0:32 page migration patchset Ray Bryant
2005-01-05 2:07 ` Andi Kleen
2005-01-05 3:20 ` Ray Bryant
2005-01-05 18:41 ` Steve Longerbeam
2005-01-05 19:23 ` Ray Bryant
2005-01-05 23:00 ` Steve Longerbeam
2005-01-05 23:16 ` Ray Bryant
2005-01-05 20:55 ` Hugh Dickins
[not found] ` <41DC7EAD.8010407@mvista.com>
2005-01-06 14:43 ` Andi Kleen
2005-01-06 16:00 ` Ray Bryant
2005-01-06 17:50 ` Christoph Lameter
2005-01-06 19:29 ` Andi Kleen
2005-01-06 22:30 ` William Lee Irwin III
2005-01-06 23:08 ` Andrew Morton
2005-01-06 23:15 ` William Lee Irwin III
2005-01-06 23:21 ` Ray Bryant
2005-01-06 23:35 ` William Lee Irwin III
2005-01-06 23:53 ` Anton Blanchard
2005-01-07 0:06 ` William Lee Irwin III
2005-01-07 0:31 ` Andi Kleen
2005-01-06 23:43 ` Steve Longerbeam
2005-01-06 23:58 ` William Lee Irwin III
2005-01-11 15:38 ` Ray Bryant
2005-01-11 19:00 ` Steve Longerbeam
2005-01-11 19:30 ` Ray Bryant
2005-01-11 20:59 ` Steve Longerbeam
2005-01-12 12:35 ` Robin Holt [this message]
2005-01-12 18:12 ` Hugh Dickins
2005-01-12 18:45 ` Ray Bryant
2005-01-12 18:53 ` Andrew Morton
2005-01-14 13:55 ` swapspace layout improvements advocacy Tim Schmielau
2005-01-14 18:15 ` Andrew Morton
2005-01-14 22:52 ` Barry K. Nathan
2005-01-15 0:33 ` Alan Cox
2005-01-15 2:26 ` Tim Schmielau
2005-01-15 8:55 ` Pasi Savolainen
2005-01-06 20:59 page migration patchset Ray Bryant
2005-01-06 23:04 ` Andi Kleen
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