From: Rafael Aquini <aquini@redhat.com>
To: David Rientjes <rientjes@google.com>
Cc: kbuild test robot <fengguang.wu@intel.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-mm@kvack.org, Michal Hocko <mhocko@suse.cz>
Subject: Re: [patch] mm: introduce a common interface for balloon pages mobility fix
Date: Tue, 27 Nov 2012 22:03:56 -0200 [thread overview]
Message-ID: <20121128000355.GA7401@t510.redhat.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1211271549140.21752@chino.kir.corp.google.com>
On Tue, Nov 27, 2012 at 03:50:07PM -0800, David Rientjes wrote:
> On Fri, 16 Nov 2012, David Rientjes wrote:
>
> > > This is already addressed at v12 revision which is on mmtom queue already.
> > >
> >
> > Ah, it was merged yesterday but it depends on TRANSPARENT_HUGEPAGE rather
> > than COMPACTION. Why? Surely thp is not the only thing that benefits
> > from keeping memory defragmented for high-order allocs.
> >
>
> Ping on this? The direct question was why depend on TRANSPARENT_HUGEPAGE
> rather than COMPACTION, i.e. why do only order-9 allocations benefit from
> defragmented memory rather than all high order allocations?
>
> Thanks.
Ugh, I missed this one on the mail pile.
That's a nice feature for all system, indeed. I'd say you're 100% right. Would
you mind in submitting the change?
Thanks David, and sorry sorry for the late reply.
Rafael
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next prev parent reply other threads:[~2012-11-28 0:04 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-16 15:13 [memcg:since-3.6 365/437] warning: (BALLOON_COMPACTION && TRANSPARENT_HUGEPAGE) selects COMPACTION which has unmet direct dependencies (MMU) kbuild test robot
2012-11-16 19:50 ` [patch] mm: introduce a common interface for balloon pages mobility fix David Rientjes
2012-11-16 20:10 ` Rafael Aquini
2012-11-16 22:03 ` David Rientjes
2012-11-27 23:50 ` David Rientjes
2012-11-28 0:03 ` Rafael Aquini [this message]
2012-11-28 0:15 ` David Rientjes
2012-11-28 9:59 ` Michal Hocko
2012-11-28 10:57 ` Rafael Aquini
2012-11-16 20:12 ` Rafael Aquini
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