On Thu, Jun 5, 2014 at 5:15 AM, Igor M <igor...@gmail.com> wrote: > Hello, > > Why btrfs becames EXTREMELY slow after some time (months) of usage ?
> # btrfs fi show > Label: none uuid: b367812a-b91a-4fb2-a839-a3a153312eba > Total devices 1 FS bytes used 2.36TiB > devid 1 size 2.73TiB used 2.38TiB path /dev/sde > # btrfs fi df /mnt/old > Data, single: total=2.36TiB, used=2.35TiB Is that the fs that is slow? It's almost full. Most filesystems would exhibit really bad performance when close to full due to fragmentation issue (threshold vary, but 80-90% full usually means you need to start adding space). You should free up some space (e.g. add a new disk so it becomes multi-device, or delete some files) and rebalance/defrag. -- Fajar -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
