linux-kernel - Re: [lkp] [shmem] 071904e8df: meminfo.AnonHugePages +553.5% increase

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Date:	Thu, 4 Aug 2016 02:10:12 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	kernel test robot <xiaolong.ye@...el.com>
Cc:	Hugh Dickins <hughd@...gle.com>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
	LKML <linux-kernel@...r.kernel.org>, lkp@...org
Subject: Re: [lkp] [shmem]  071904e8df: meminfo.AnonHugePages +553.5%
 increase

On Thu, 4 Aug 2016 16:54:09 +0800 kernel test robot <xiaolong.ye@...el.com> wrote:

> FYI, we noticed meminfo.AnonHugePages +553.5% increase due to commit:
> 
> commit 071904e8dfed9525f9da86523caf78b6da5f9e7e ("shmem: get_unmapped_area align huge page")
> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master

hm, that seems like a good thing.

>     20428   9%    +553.5%     133500   7%  meminfo.AnonHugePages
>     42717   4%    +261.3%     154340   6%  meminfo.AnonPages

But AnonPages increased tremendously as well.

Not sure I understand this...