From: Bagas Sanjaya <bagasdotme@gmail.com>
To: "Pankaj Raghav (Samsung)" <kernel@pankajraghav.com>,
Andrew Morton <akpm@linux-foundation.org>,
Jonathan Corbet <corbet@lwn.net>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
willy@infradead.org, David Hildenbrand <david@redhat.com>,
da.gomez@kernel.org, mcgrof@kernel.org, gost.dev@samsung.com,
linux-doc@vger.kernel.org, Pankaj Raghav <p.raghav@samsung.com>
Subject: Re: [PATCH v2 2/2] docs: clarify THP admin guide about (File|Shmem)PmdMapped and ShmemHugePage
Date: Fri, 4 Apr 2025 19:44:11 +0700 [thread overview]
Message-ID: <Z-_UG_zVLZNjxPD6@archie.me> (raw)
In-Reply-To: <20250404100159.27086-3-kernel@pankajraghav.com>
[-- Attachment #1: Type: text/plain, Size: 983 bytes --]
On Fri, Apr 04, 2025 at 12:01:59PM +0200, Pankaj Raghav (Samsung) wrote:
> -The number of file transparent huge pages mapped to userspace is available
> -by reading ShmemPmdMapped and ShmemHugePages fields in ``/proc/meminfo``.
> -To identify what applications are mapping file transparent huge pages, it
> -is necessary to read ``/proc/PID/smaps`` and count the FilePmdMapped fields
> -for each mapping.
> +The number of PMD-sized transparent huge pages currently used by
"In similar fashion, the number ..."
> +tmpfs/shmem is available by reading the ShmemHugePages field
> +in ``/proc/meminfo``. The number of these huge pages that are mapped to userspace
> +is available by reading ShmemPmdMapped field in ``proc/meminfo``. To identify
> +what applications are mapping these huge pages, it is necessary to read
> +``/proc/PID/smaps`` and count the ShmemPmdMapped fields for each mapping.
>
Thanks.
--
An old man doll... just what I always wanted! - Clara
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 228 bytes --]
next prev parent reply other threads:[~2025-04-04 12:44 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-04 10:01 [PATCH v2 0/2] update thp admin doc Pankaj Raghav (Samsung)
2025-04-04 10:01 ` [PATCH v2 1/2] docs: update THP admin guide about non-tmpfs filesystem support Pankaj Raghav (Samsung)
2025-04-04 10:01 ` [PATCH v2 2/2] docs: clarify THP admin guide about (File|Shmem)PmdMapped and ShmemHugePage Pankaj Raghav (Samsung)
2025-04-04 12:44 ` Bagas Sanjaya [this message]
2025-04-04 12:55 ` David Hildenbrand
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=Z-_UG_zVLZNjxPD6@archie.me \
--to=bagasdotme@gmail.com \
--cc=akpm@linux-foundation.org \
--cc=corbet@lwn.net \
--cc=da.gomez@kernel.org \
--cc=david@redhat.com \
--cc=gost.dev@samsung.com \
--cc=kernel@pankajraghav.com \
--cc=linux-doc@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=mcgrof@kernel.org \
--cc=p.raghav@samsung.com \
--cc=willy@infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).