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.
Thanks!
-Jeff
Hi Jeff,
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. -Jeff -- Jeff Mahoney SUSE Labs