linux-kernel - Re: [PATCH] mm: show stats for non-default hugepage sizes in /proc/meminfo

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Message-ID: <940679cd-b044-707d-a693-e360cf8623b5@intel.com>
Date:   Mon, 13 Nov 2017 11:31:14 -0800
From:   Dave Hansen <dave.hansen@...el.com>
To:     Johannes Weiner <hannes@...xchg.org>, Roman Gushchin <guro@...com>
Cc:     Mike Kravetz <mike.kravetz@...cle.com>, linux-mm@...ck.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Michal Hocko <mhocko@...e.com>,
        "Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>,
        Andrea Arcangeli <aarcange@...hat.com>, kernel-team@...com,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mm: show stats for non-default hugepage sizes in
 /proc/meminfo

On 11/13/2017 11:10 AM, Johannes Weiner wrote:
> Maybe a simple summary counter for everything set aside by the hugetlb
> subsystem - default and non-default page sizes, whether they're used
> or only reserved etc.?

Yeah, one line is a lot more sane than 5 lines times all the extra
sizes.  It'll just be a matter of bikeshedding the name and whether it
should include the default pages being consumed or not.  I vote for:

	Hugetlb: "/sysfs FTW!" kB