From: Andrew Morton <akpm@osdl.org>
To: Alex Buell <alex.buell@munted.org.uk>
Cc: linux-kernel@vger.kernel.org
Subject: Re: inode_cache / dentry_cache not being reclaimed aggressively enough on low-memory PCs
Date: Sat, 3 Jan 2004 19:05:43 -0800 [thread overview]
Message-ID: <20040103190543.3b2d917f.akpm@osdl.org> (raw)
In-Reply-To: <Pine.LNX.4.58.0401040014360.4975@slut.local.munted.org.uk>
Alex Buell <alex.buell@munted.org.uk> wrote:
>
> On Sat, 3 Jan 2004, Andrew Morton wrote:
>
> > John Lash <jlash@speakeasy.net> wrote:
> > >
> > > As it stands, it will maintain as many unused entries as there are used entries.
> > > If this low memory system las a large, stable, number of inuse dentry objects,
> > > the unused entries will match it thereby holding double the memory and possibly
> > > causing the problem you see.
> >
> > Yup. There is a fix in 2.6.1-rc1 for this.
>
> Which change would that be? It would be nice to back-port that to 2.4.x if
> that's possible?
It is not backportable.
You could try increasing `count' in shrink_dcache_memory() and
shrink_icache_memory(). Also you should be using 2.4.23 or later because
it does have improvements in the memory reclaim area.
next prev parent reply other threads:[~2004-01-04 3:05 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-01-03 11:35 Alex Buell
2004-01-03 16:30 ` John Lash
2004-01-03 18:27 ` Alex Buell
2004-01-03 22:24 ` Mike Fedyk
2004-01-03 22:55 ` Andrew Morton
2004-01-04 0:15 ` Alex Buell
2004-01-04 3:05 ` Andrew Morton [this message]
2004-01-04 7:23 ` Mike Fedyk
2004-01-05 17:32 ` Marcelo Tosatti
2004-01-05 18:47 ` Mike Fedyk
2004-01-09 20:49 ` Rik van Riel
2004-01-04 5:31 ` John Lash
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=20040103190543.3b2d917f.akpm@osdl.org \
--to=akpm@osdl.org \
--cc=alex.buell@munted.org.uk \
--cc=linux-kernel@vger.kernel.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
Powered by JetHome