After some time, bandwidth increased to reasonable values, and after some hours, the balance operation completed. After that, performance seems to be okay. I've also added autodefrag as a mount option in fstab, just in case. It worries me that the filesystem degrades like this though.
Previous mount options: btrfs defaults,noatime,compress=lzo
After some time, bandwidth increased to reasonable values, and after some hours, the balance operation completed. After that, performance seems to be okay. I've also added autodefrag as a mount option in fstab, just in case. It worries me that the filesystem degrades like this though.
Previous mount options: btrfs defaults, noatime, compress= lzo