Hello btrfs-folks, I am currently doing a big "btrfs balance" to extend a 8 drive RAID6 to 12 drives using "btrfs balance start -dstripes 1..11 -mstripes 1..11" With kernel 4.4 and btrfs progs 4.4 it's running fine for a few days now and the new disks are slowing getting more and more extents. But somehow the process is VERY slow (3% in 3 days) and there is almost no additional disk utilization. The process doing the balance is doing 100% cpu (one core) so apparently the whole thing is very much single threaded and therefore CPU-bound in this case. Is this a known issue or is there anything I can do to speed this up? I mean the disks have plenty of iops left to work with and the box has many more CPU cores idling away. Regards Christian -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
