Re[2]: Slides for a talk I will be making

[Keith Matthews <keith_m@sweeney.demon.co.uk>]

On Fri, 24 Aug 2001 18:47:02 +0800 (PHT) Federico Sevilla III <Federico Sevilla III <jijo@leathercollection.ph>> wrote:

> On Fri, 24 Aug 2001 at 12:28, Hans Kratz wrote:
> > The Reiserfs slides state that link() on Reiserfs is not synchronous.
> > This is correct but is the same not true for XFS as well?

> This I do not know, either. Thank you for bringing this up. There is a
> clear FAQ entry about ReiserFS not treating link() as synchronous because
> of issues with QMail (and most other mail transfer agents, I think, but am
> not sure).

Cerainly Postfix. Postfix works on XFS, but has some problems as it
automatically calls fsync() to ensure safety and calls chattr+S on its
files. as chattr is only supported on ext2/ext3 this causes some
aggro.

I'm getting reports of good postfix performance on ext3, as would be
expected, full data journalling is important to such an app.

BTW, I'm not sure the entry about JFS and ACLS is correct. I'm on the
JFS mailing list and ACL support is still (within last week) being
listed as 'todo'. I'll do a little more checking as I have been
preparing something similar for my local LUG although the audience
will be more techically capable and I was intending a different level
of cover.


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