Le samedi 06 juillet 2013 à 15:33 +0200, Arvin Schnell a écrit :
On Fri, Jul 05, 2013 at 10:59:11AM +0200, agustin benito bethencourt wrote:
in my company laptop (Lenovo X220) I installed openSUSE 12.3 RC2 with btrfs then I updated to 12.3. I had an encrypted partition.
SSD or HDD?
The performance was very good at the beginning. But it became worse and worse over time due to my hardisk being busy for no reason. At some point I began to experience time slots up to one minute in which I my laptop got frozen and came back to life again like nothing happened. I thought it was due to Akonadi. So I deactivated it but problems remained.
Ludwig Nussel checked it and determined that the source of the problem most likely was btrFS.
Have you tried the autodefrag mount option?
Based on discussion with one of our BtrFS hackers (David Sterba), using
autodefrag isn't a great idea, because it causes BtrFS to block write
when defragmenting (so, it would make the problem worse). He told me
running "btrfs filesystem defragment" is better because it doesn't block
IO.
--
Frederic Crozat