From: Benjamin LaHaise <bcrl@redhat.com>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Linux MM mailing list <linux-mm@kvack.org>, torvalds@transmeta.com
Subject: Re: Under what conditions are VMAs merged?
Date: Wed, 17 Oct 2001 21:58:18 -0400 [thread overview]
Message-ID: <20011017215818.A2804@redhat.com> (raw)
In-Reply-To: <3BCE20DF.6090103@zytor.com>; from hpa@zytor.com on Wed, Oct 17, 2001 at 05:22:55PM -0700
On Wed, Oct 17, 2001 at 05:22:55PM -0700, H. Peter Anvin wrote:
> In the checkpoint routine I thought doing an mprotect(PROT_READ) on the
> entire region as a single system call would coalesce the VMAs, but
> apparently that is not the case; after running my standard stress-test
> application, /proc/pid/maps show 51635 mappings, most of them contiguous
> and otherwise matching the surrounding mappings in every way; a dump of
Only anonymous vmas are candidates for merging. Take it up with the head
penguin. No merging at all is done for shared vmas.
-ben
--
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/
prev parent reply other threads:[~2001-10-18 1:58 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-10-18 0:22 H. Peter Anvin
2001-10-18 1:58 ` Benjamin LaHaise [this message]
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=20011017215818.A2804@redhat.com \
--to=bcrl@redhat.com \
--cc=hpa@zytor.com \
--cc=linux-mm@kvack.org \
--cc=torvalds@transmeta.com \
/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