From: Badari Pulavarty <pbadari@us.ibm.com>
To: Andrew Morton <akpm@osdl.org>
Cc: lkml <linux-kernel@vger.kernel.org>, linux-mm <linux-mm@kvack.org>
Subject: Re: Memory pressure handling with iSCSI
Date: Tue, 26 Jul 2005 13:36:56 -0700 [thread overview]
Message-ID: <1122410216.6433.41.camel@dyn9047017102.beaverton.ibm.com> (raw)
In-Reply-To: <20050726121250.0ba7d744.akpm@osdl.org>
On Tue, 2005-07-26 at 12:12 -0700, Andrew Morton wrote:
> Andrew Morton <akpm@osdl.org> wrote:
> >
> > Can you please reduce the number of filesystems, see if that reduces the
> > dirty levels?
>
> Also, it's conceivable that ext3 is implicated here, so it might be saner
> to perform initial investigation on ext2.
>
> (when kjournald writes back a page via its buffers, the page remains
> "dirty" as far as the VFS is concerned. Later, someone tries to do a
> writepage() on it and we'll discover the buffers' cleanness and the page
> will be cleaned without any I/O being performed. All the throttling
> _should_ work OK in this case. But ext2 is more straightforward.)
I will try ext2 next.
- Badari
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next prev parent reply other threads:[~2005-07-26 20:37 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-26 17:35 Badari Pulavarty
2005-07-26 18:04 ` Roland Dreier
2005-07-26 18:11 ` Andrew Morton
2005-07-26 18:39 ` Badari Pulavarty
2005-07-26 18:48 ` Andrew Morton
2005-07-26 19:12 ` Andrew Morton
2005-07-26 20:36 ` Badari Pulavarty [this message]
2005-07-26 21:11 ` Badari Pulavarty
2005-07-26 21:24 ` Andrew Morton
2005-07-26 21:45 ` Badari Pulavarty
2005-07-26 22:10 ` Andrew Morton
2005-07-26 22:48 ` Badari Pulavarty
2005-07-26 23:07 ` Andrew Morton
2005-07-26 23:26 ` Badari Pulavarty
2005-07-27 0:31 ` Andrew Morton
2005-07-27 1:20 ` Martin J. Bligh
2005-07-27 1:26 ` Andrew Morton
2005-07-27 1:47 ` Martin J. Bligh
2005-07-27 1:31 ` Badari Pulavarty
2005-07-27 1:40 ` Andrew Morton
2005-07-26 19:31 ` Sonny Rao
2005-07-26 20:37 ` Badari Pulavarty
2005-07-26 21:21 ` Andrew Morton
2005-07-26 20:59 ` Rik van Riel
2005-07-26 21:05 ` Badari Pulavarty
2005-07-26 21:33 ` Martin J. Bligh
2005-07-26 22:05 ` Adam Litke
2005-07-26 21:12 ` Andrew Morton
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