2011-05-21 14:58:21 +0200, Tomasz Chmielewski: > I have a btrfs filesystem (2.6.39) which is mounted, but otherwise, not used: > > # lsof -n|grep /mnt/btrfs
processes with open fds are one thing. You could also have loop devices setup on it for instance. > # > > > I noticed that whenever I do "sync", btrfs will write for around 6.5s and > write 13 MB (see below). [...] You could try and play with /proc/sys/vm/block_dump to see what is being written (remember to disable logging of kernel messages by syslog). -- Stephane -- 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