1495MiB used raid6 in a VM using 4x qcow2 files on an SSD. Host is using kernel 4.4.0 Guest is using kernel 4.5.0rc0.git9.1.fc24 (this is a Fedora Rawhide debug kernel so it'll be a bit slower), btrfs-progs 4.3.1 Not degraded, balance takes 11 seconds, that's ~136MiB/s iotop isn't consistent, max is ~300MiB/s write. Reboot with 1 device missing and a new empty qcow2 in its place, mount degraded and 'btrfs replace' takes 13 seconds according to 'btrfs replace status'. I don't know that this is very useful information though. Christian, what are you getting for 'iotop -d3 -o' or 'iostat -d3'. Is it consistent or is it fluctuating all over the place? What sort of eyeball avg/min/max are you getting? Chris Murphy -- 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
