From: Andrew Morton <akpm@osdl.org>
To: Badari Pulavarty <pbadari@us.ibm.com>
Cc: ext2-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org
Subject: Re: [Ext2-devel] Re: inode cache, dentry cache, buffer heads usage
Date: Mon, 14 Mar 2005 14:41:03 -0800 [thread overview]
Message-ID: <20050314144103.0d6ed063.akpm@osdl.org> (raw)
In-Reply-To: <1110838395.24286.297.camel@dyn318077bld.beaverton.ibm.com>
Badari Pulavarty <pbadari@us.ibm.com> wrote:
>
> On Mon, 2005-03-14 at 14:11, Andrew Morton wrote:
> > Badari Pulavarty <pbadari@us.ibm.com> wrote:
> > >
> > > On Thu, 2005-03-10 at 17:47, Andrew Morton wrote:
> > > > Badari Pulavarty <pbadari@us.ibm.com> wrote:
> > > > >
> > > > > So, why is these slab cache are not getting purged/shrinked even
> > > > > under memory pressure ? (I have seen lowmem as low as 6MB). What
> > > > > can I do to keep the machine healthy ?
> > > >
> > > > Tried increasing /proc/sys/vm/vfs_cache_pressure? (That might not be in
> > > > 2.6.8 though).
> > > >
> > > >
> > >
> > > Yep. This helped shrink the slabs, but we end up eating up lots of
> > > the lowmem in Buffers. Is there a way to shrink buffers ?
> >
> > It would require some patchwork. Why is it a problem? That memory is
> > reclaimable.
> >
>
> Well, machine pauses for 5-30 seconds for each vi,cscope, write() etc.
Why?
> > How'd you get 1.8gig of lowmem?
>
> 2:2 split
>
Does a normal kernel exhibit the pauses?
next prev parent reply other threads:[~2005-03-14 22:45 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-09 18:55 Badari Pulavarty
2005-03-09 21:27 ` Dipankar Sarma
2005-03-09 21:29 ` Badari Pulavarty
2005-03-09 21:53 ` Dipankar Sarma
2005-03-09 21:57 ` [Ext2-devel] " Sonny Rao
2005-03-11 1:47 ` Andrew Morton
2005-03-14 21:28 ` Badari Pulavarty
2005-03-14 22:11 ` Andrew Morton
2005-03-14 22:13 ` [Ext2-devel] " Badari Pulavarty
2005-03-14 22:41 ` Andrew Morton [this message]
2005-03-15 16:17 ` Badari Pulavarty
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=20050314144103.0d6ed063.akpm@osdl.org \
--to=akpm@osdl.org \
--cc=ext2-devel@lists.sourceforge.net \
--cc=linux-kernel@vger.kernel.org \
--cc=pbadari@us.ibm.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
Powered by JetHome