[ale] Ext4 adoption anyone?

[Pat Regan]

Preston Boyington wrote:
> Various bits have been spoken about Ext4 on one of the Debian lists I
> follow and I was wondering if anyone "here" was testing it on their system.
> 

The only benchmark data I've seen so far on ext4 was a website comparing
Ubuntu boot times.  IIRC, the numbers were something like 3-4 seconds
shaved off of 25 seconds or so over ext3.  That is actually fairly
impressive.

I'm less interested in performance improvements in my filesystem than I
am in new advanced features.  Btrfs and zfs both interest me a lot.

I've toyed with zfs, and I would be very happy if it could be legally
integrated into the Linux kernel.  I could make much use of the ability
to create volumes as easily as I can currently create a directory.  Long
term read/write snapshots would be handy as well.  Especially without
having to guess how big the snapshot will need to be ahead of time.

Btrfs looks like it is going to have at least all those features.  The
only zfs feature I would very much like to have that btrfs doesn't look
like it will have is raid-z.  Raid-z has the same data density and
redundancy as RAID 5 but lacks the write performance problem (though it
does introduce a fragmentation issue).

Zfs snapshots and volumes are nearly tempting enough to get me to switch
out my operating system, but not quite.  My RCS and backups do most of
the job, they just require a bit more effort and I can't eliminate the
backups anyway.

Pat

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 197 bytes
Desc: OpenPGP digital signature
Url : http://mail.ale.org/pipermail/ale/attachments/20090121/2fb9e8d3/attachment.bin