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Date: Thu, 2 Oct 2014 22:07:34 +0300
From: "Kirill A. Shutemov" <kirill@shutemov.name>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Sasha Levin <sasha.levin@oracle.com>, Mel Gorman <mgorman@suse.de>,
        Dave Jones <davej@redhat.com>, Hugh Dickins <hughd@google.com>,
        Al Viro <viro@zeniv.linux.org.uk>, Rik van Riel <riel@redhat.com>,
        Ingo Molnar <mingo@redhat.com>, Peter Zijlstra <peterz@infradead.org>,
        Aneesh Kumar <aneesh.kumar@linux.vnet.ibm.com>,
        Michel Lespinasse <walken@google.com>,
        Kirill A Shutemov <kirill.shutemov@linux.intel.com>,
        Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 4/4] mm: numa: Do not mark PTEs pte_numa when splitting
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On Thu, Oct 02, 2014 at 12:03:58PM -0700, Linus Torvalds wrote:
> On Thu, Oct 2, 2014 at 11:58 AM, Sasha Levin <sasha.levin@oracle.com> wrote:
> >
> > You've also mentioned that while I can tell you if nothing dies, I can't
> > really tell you if everything is working well. Is there a reasonable way
> > to easily say if NUMA is working properly? Even something that would just
> > tell me "your NUMA balancing seems to be sane" would be good.
> 
> So not having a NUMA machine (and not really wanting one), I can't
> really test things like the migration even *working*.

I believe Sasha uses fakenuma in his KVM for that.

-- 
 Kirill A. Shutemov