linux-kernel - Re: [PATCH 0/4] ksm - dynamic page sharing driver for linux v2

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Date:	Mon, 6 Apr 2009 15:42:41 +0200
From:	Andrea Arcangeli <aarcange@...hat.com>
To:	Nick Piggin <nickpiggin@...oo.com.au>
Cc:	Izik Eidus <ieidus@...hat.com>, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
	linux-mm@...ck.org, avi@...hat.com, chrisw@...hat.com,
	mtosatti@...hat.com, hugh@...itas.com,
	kamezawa.hiroyu@...fujitsu.com
Subject: Re: [PATCH 0/4] ksm - dynamic page sharing driver for linux v2

On Mon, Apr 06, 2009 at 05:04:49PM +1000, Nick Piggin wrote:
> They should use a shared memory segment, or MAP_ANONYMOUS|MAP_SHARED etc.
> Presumably they will probably want to control it to interleave it over
> all numa nodes and use hugepages for it. It would be very little work.

I thought it's the intermediate result of the computations that leads
to lots of equal data too, in which case ksm is the only way to share
it all.
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