From: "Stephen C. Tweedie" <sct@redhat.com>
To: Andrew Morton <andrewm@uow.edu.au>
Cc: "Stephen C. Tweedie" <sct@redhat.com>,
Mark Hahn <hahn@coffee.psychology.mcmaster.ca>,
linux-mm@kvack.org
Subject: Re: how text page of executable are shared ?
Date: Wed, 29 Mar 2000 14:45:16 +0100 [thread overview]
Message-ID: <20000329144516.A21920@redhat.com> (raw)
In-Reply-To: <38E192D1.3D7B642B@uow.edu.au>; from andrewm@uow.edu.au on Wed, Mar 29, 2000 at 05:21:21AM +0000
Hi,
On Wed, Mar 29, 2000 at 05:21:21AM +0000, Andrew Morton wrote:
> >
> > The swapping should be brief if all is working properly, though, as the
> > shrink_mmap() will rapidly find itself on the second pass over memory
> > and will start finding things which have been aged on the first pass
> > and not used since.
>
> Interesting.
>
> Why do you swap active pages out (page_count(page) > 1) when there are
> still (page_count(page) == 1) pages floating about?
We don't. Scanning the page cache for unreferenced, count==1 pages
always takes priority over swapping.
--Stephen
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next prev parent reply other threads:[~2000-03-29 13:45 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-03-28 3:51 pnilesh
2000-03-28 13:22 ` Stephen C. Tweedie
2000-03-28 15:58 ` Mark Hahn
2000-03-28 18:10 ` Andrea Arcangeli
2000-03-29 1:01 ` Stephen C. Tweedie
2000-03-29 1:59 ` Kanoj Sarcar
2000-03-29 5:21 ` Andrew Morton
2000-03-29 13:45 ` Stephen C. Tweedie [this message]
2000-03-29 7:46 pnilesh
2000-03-29 13:49 ` Stephen C. Tweedie
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