Re: Memory pressure handling with iSCSI

From: Badari Pulavarty
Date: Tue Jul 26 2005 - 15:40:15 EST

On Tue, 2005-07-26 at 12:12 -0700, Andrew Morton wrote:
> Andrew Morton <akpm@xxxxxxxx> 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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