Date: Tue, 15 Dec 2015 13:53:42 +0200
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
To: yalin wang <yalin.wang2010@gmail.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>,
        Oleg Nesterov <oleg@redhat.com>, akpm@linux-foundation.org,
        gang.chen.5i5j@gmail.com, mhocko@suse.com, kwapulinski.piotr@gmail.com,
        aarcange@redhat.com, dcashman@google.com, linux-mm@kvack.org,
        linux-kernel@vger.kernel.org
Subject: Re: [RFC] mm: change find_vma() function
Message-ID: <20151215115342.GB75130@black.fi.intel.com>
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 <20151214175509.GA25681@redhat.com>
 <20151214211132.GA7390@node.shutemov.name>
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On Tue, Dec 15, 2015 at 02:41:21PM +0800, yalin wang wrote:
> > On Dec 15, 2015, at 05:11, Kirill A. Shutemov <kirill@shutemov.name> wrote:
> > Anyway, I don't think it's possible to gain anything measurable from this
> > optimization.
> > 
> the advantage is that if addr don’t belong to any vma, we don’t need loop all vma,
> we can break earlier if we found the most closest vma which vma->end_add > addr,

Do you have any workload which can demonstrate the advantage?

-- 
 Kirill A. Shutemov
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