From: Hugh Dickins <hughd@google.com>
To: "Borzenkov, Andrey" <andrey.borzenkov@ts.fujitsu.com>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: Transparent huge pages and shmem?
Date: Mon, 23 Jan 2012 11:38:08 -0800 (PST) [thread overview]
Message-ID: <alpine.LSU.2.00.1201231132030.1677@eggly.anvils> (raw)
In-Reply-To: <CB1B361E45A85849902B25342E88900501F504CDD753@ABGEX70E.FSC.NET>
On Mon, 23 Jan 2012, Borzenkov, Andrey wrote:
> In case of THP enabled kernel - will THP be used for SysV shmem?
> The obvious target is to avoid pre-allocation of huge pages pool
> for databases like Oracle that is required today.
It will one day, yes. Various people are very interested in THP on
tmpfs/shmem, which serves SysV shm. But at present THP is limited to
private anonymous pages, and its extension to shared file pages is not
trivial. I have not heard of anyone making significant progress on
that as yet - but perhaps someone is working on it behind the scenes.
Hugh
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
parent reply other threads:[~2012-01-23 19:38 UTC|newest]
Thread overview: expand[flat|nested] mbox.gz Atom feed
[parent not found: <CB1B361E45A85849902B25342E88900501F504CDD753@ABGEX70E.FSC.NET>]
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=alpine.LSU.2.00.1201231132030.1677@eggly.anvils \
--to=hughd@google.com \
--cc=andrey.borzenkov@ts.fujitsu.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.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