Re: 2.6.4 ext3fs half order of magnitude slower than xfs - bulkwrite

[Andrew Morton]

Matthias Andree <matthias.andree@xxxxxx> wrote:
>
> ext3fs runs in the default data=ordered mode for one test and
> data=writeback for another. xfs runs in default mode without special
> realtime tricks or such. XFS is at least by a factor three faster than
> even ext3 -o data=writeback.

It should be possible to generate a simple testcase which demonstrates this
problem on that machine.  Is that something you can do?

>From your description, write-and-fsync.c from

	http://www.zip.com.au/~akpm/linux/patches/stuff/ext3-tools.tar.gz

would be a good starting point.
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