[nzlug] reiser3 vs. ext3 & co.

[Volker Kuhlmann]

On Fri 04 Jul 2008 09:27:38 NZST +1200, R. Eimann wrote:

> I have one filesystem that uses 4.107.188 kBytes under ReiserFS3. I copied its 
> files out to an ext3 filesystem. There, the same data occupies 9.130.932 
> kBytes, that's an insane inflation of 222%!

Reiser is exceptionally good for many small files, as you find e.g. in
email handling.

If you reduce the defulat block size for ext2/3 much, check whether
performance for large files suffers.

JFS is apparently not so well supported in the kernel. It's use on oS
10.3 is somewhat discouraged, and there are problems booting from it
(ref [opensuse-factory] 11.0 default filesystems again).

Try XFS, it's easy enough.

> On the other hand, ReiserFS does not seem to be an ideal choice for multicore 
> systems as my box (some global kernel locking issue).

Are you certain about that? My understanding is that oS and SLES share
the same kernel, and chances that SLES has a faulty reiserfs for
multiprocessor hardware should be slim.

Volker

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