Re: [Moosefs-users] MFS reports used space

[Laurent W. <lw...@hy...>]

On Tue, 6 Jul 2010 15:22:12 +0300
Stas Oskin <sta...@gm...> wrote:

> >
> >
> > Thanks, it helps indeed.
> 
> My concern that us MFS presents additional layer over FS, it would take a
> long time to find out what causing issues, ext4 or MFS.
> Moreover, as Michal says they using ext3 so probably never encountered any
> issues with ext4.
> 
> I'm going to convert a machine to ext4 / xfs (also testing HA in process),
> and benchmark then, and we could share the results.
That would be nice numbers to have, indeed.
> 
> Speaking of, do you know how ext4 compares to xfs, especially for such
> clustered file systems as mfs?
I have no XFS at work these days. I may have some in a couple months,
but nothing sure. All I can say is that XFS is more efficient with big
files than ext* is. I tend to find XFS snappier than ext* in general,
but for deletion operations. Nothing scientifically proved, anyway.
-- 
Laurent Wandrebeck
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