Re: Question: Maximum number of directories? OT question...
On Tue, Dec 06, 2005 at 11:46:14PM +0000, Miquel van Smoorenburg wrote:
> In article <[🔎] 009301c5f9f1$b4654f20$6400a8c0@slocal>,
> Gerorge Reece-Howe <email@example.com> wrote:
> >> "Jochen Schulz" <firstname.lastname@example.org>
> >>You can see that / and /srv are ext3 and /var and /home are xfs. I
> >>chose xfs for these because they contain directories with a lot of
> >>files (the already mentioned Maildirs and a news spool). So far, I had
> >>no problems with xfs.
> >I'll see how I go with ext3 for now, but I'll keep that in mind.
> Ext2 and ext3 get really slow when you have lots of files (or
> subdirectories) in one directory.
> However that was fixed some time ago. If you're running 2.6 you
> can enable the dir_index on an ext3 filesystem. See man mkfs.ext3:
> -O feature[,...]
> Create filesystem with given features (filesystem options)
> Use hashed b-trees to speed up lookups in large
> You can enable this on existing filesystems using tune2fs. See man
> tune2fs(8) for more information.
I've looked at the man page. I'm interested in trying this, but I have a
question: The -O feature... option allows one to set and clear file system
features, but how can I query the system to discover which features are
set on which volumes?
Paul E Condon