Re: [RFC PATCH] mm/thp: Always allocate transparent hugepages on local node

From: Kirill A. Shutemov
Date: Mon Nov 24 2014 - 10:03:52 EST


On Mon, Nov 24, 2014 at 07:49:51PM +0530, Aneesh Kumar K.V wrote:
> This make sure that we try to allocate hugepages from local node. If
> we can't we fallback to small page allocation based on
> mempolicy. This is based on the observation that allocating pages
> on local node is more beneficial that allocating hugepages on remote node.

Local node on allocation is not necessary local node for use.
If policy says to use a specific node[s], we should follow.

I think it makes sense to force local allocation if policy is interleave
or if current node is in preferred or bind set.

--
Kirill A. Shutemov
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