On Wed, Aug 05, 2015 at 09:06:40AM +0200, Martin wrote: > Also, what is the penalty of a subvolume compared to a directory? From > a design perspective, couldn't all directories just be subvolumes? They could, but this would bring severe performance drop. * creating a subvolume implies a transaction commit * the subvolumes act like a mountpoint boundary so it needs to resolve the next subvolume root before directory traversal can descend to it You can try to create a deep hierarchy of directories and then do the same with subvolumes. The difference is too big for practical purposes. -- 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
