Re: Memory pressure handling with iSCSI

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Andrew Morton <[email protected]> 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.)
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