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Date: Mon, 28 Jan 2013 17:07:15 -0800 (PST)
From: Hugh Dickins <hughd@google.com>
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To: Andrew Morton <akpm@linux-foundation.org>
cc: Marcelo Tosatti <mtosatti@redhat.com>, Gleb Natapov <gleb@redhat.com>,
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        Anton Arapov <anton@redhat.com>, Mel Gorman <mgorman@suse.de>,
        linux-kernel@vger.kernel.org, linux-mm@kvack.org, kvm@vger.kernel.org
Subject: Re: [PATCH 0/11] ksm: NUMA trees and page migration
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On Mon, 28 Jan 2013, Andrew Morton wrote:
> On Fri, 25 Jan 2013 17:53:10 -0800 (PST)
> Hugh Dickins <hughd@google.com> wrote:
> 
> > Here's a KSM series
> 
> Sanity check: do you have a feeling for how useful KSM is? 
> Performance/space improvements for typical (or atypical) workloads? 
> Are people using it?  Successfully?
> 
> IOW, is it justifying itself?

I have no idea!  To me it's simply a technical challenge - and I agree
with your implication that that's not a good enough justification.

I've added Marcelo and Gleb and the KVM list to the Cc:
my understanding is that it's the KVM guys who really appreciate KSM.

Hugh