Re: [PATCH 2/4] Create the journal in the middle of the filesystem

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On Thu, Aug 28, 2008 at 09:40:30AM -0400, Ric Wheeler wrote:
>
> I can try and test this with my fsync() heavy fs_mark run...
>

Given [1] I have no doubt that you should see a difference between
mke2fs from e2fsprogs 1.41.0 (which will allocate the journal at the
beginning of the filesystem) and the latest tip of e2fsprogs.

It would be interesting to see how measurable the difference is,
though.  I'd recommend doing "mke2fs -t ext4dev" using both versions
of mke2fs, and seeing how much the difference it makes.

[1] http://www.usenix.org/events/usenix05/tech/general/full_papers/prabhakaran/prabhakaran_html/main.html#fig-journal-location-withinfs-fix

							- Ted

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