Ext4 improvements
Christian Kujau
lists at nerdbynature.de
Sun Dec 31 06:57:28 UTC 2006
On Sun, 31 Dec 2006, Shriramana Sharma wrote:
> So will ext4 avoid both of these problems just like ReiserFS? Does it
> use a B+ tree? Or this "dancing B* tree" that Reiser4 is supposed to have?
I cannot comment on stability/performance of ext4, but here are the
specs: http://www.bullopensource.org/ext4/
> Also: I found that a newly created ext3 partition uses 128 MB whereas a
> new reiser3 partition uses only 32 MB.
are you talking about ext3 or ext4? I haven't tested ext4 yet but for
ext3 it looks like this:
$ df -h /mnt/test0 /mnt/test1
Filesystem Size Used Avail Use% Mounted on
/tmp/reiser3.img 33M 33M 944K 98% /mnt/test0
/tmp/ext3.img 15M 1.6M 13M 11% /mnt/test1
(reiser3 needs at least a 32MB image file/device)
> P.S: Are there any recommended tutorials for learning filesystem basics?
Hm, I'm no filesystem guru but I suggest reading the specs and the
source should help a lot...
my 2 cents,
Christian.
--
BOFH excuse #127:
Sticky bits on disk.
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