Re: One Large md or Many Smaller md for Better Peformance?

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Moshe Yudkowsky (moshe@xxxxxxxxx) wrote on 20 January 2008 21:19:
 >Thanks for the tips, and in particular:
 >
 >Iustin Pop wrote:
 >
 >>   - if you download torrents, fragmentation is a real problem, so use a
 >>     filesystem that knows how to preallocate space (XFS and maybe ext4;
 >>     for XFS use xfs_io to set a bigger extend size for where you
 >>     download)
 >
 >That's a very interesting idea; it also gives me an opportunity to 
 >experiment with XFS. I had been avoiding it because of possible 
 >power-failure issues on writes.

I use reiser3 and xfs. reiser3 is very good with many small files. A
simple test shows interactively perceptible results: removing large
files is faster with xfs, removing large directories (ex. the kernel
tree) is faster with reiser3.
-
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