On 8/1/13 7:05 PM, Dr. Ralf Czekalla wrote:
Am 03.07.2013 18:23, schrieb Jeff Mahoney:
I look forward to your feedback and the
opportunity to improve btrfs for
the 13.1 release and future releases.
I use BtrFS now for quite some time here on my small netbook with an SSD
drive - which was the strongest argument to use BtrFS in the first place
- still on openSUSE 12.1 and kernel 3.9.8. Root filesystem is 20 GB and
is loaded with 15 GB pure data.
My problem with BtrFS here on the Netbook is, that the snapshots created
by YAST soon are eating up all free space and often during general
update sessions (including newest stable kernels,XOrg, libre office etc.
and keeping some old latest stable kernel generations) I have to drop
manually a lot of snapshots to gain free space on the file system back.
This is really annoying and from my point of view easy to solve. But I
never had the time to go after and find some kind of switch to make the
automatic deletion process more aggressive. When it happens I usually
don't have the time to dig into it and simply use the snapper manually
to delete snapshots. Maybe there is a solution in 12.2 or 12.3, but on
that boxes I stayed with ext4 because of this initial problem.
I've commented briefly on this in my response to Andrey's response to
this post. It may be possible to disable the automatic snapshot
functionality but TBH I've never investigated it.
Another interesting thing I would be much interested
in is generally
compressed file systems (e.g. root fs with its huge number of well
compressible files), but during my last installation sessions with 12.3
I still couldn't find an option for this in the installation process.
This would have been another case of testing BtrFS again and get an
advantage against ext4.
I think this would still be an item for the long-term roadmap. There are
still some rare and weird issues with compression that would lead me to
still mark that feature as experimental.