On Sat, 8 Oct 2011, Daniel Carosone wrote:
This isn't about whether the metadata compresses, this is about whether ZFS is smart enough to use all the space in a 4k block for metadata, rather than assuming it can fit at best 512 bytes, regardless of ashift. By packing, I meant packing them full rather than leaving them mostly empty and wasted (or anything to do with compression).
It would seem like quite a problem/challenge to stuff unrelated metadata into the same metadata block. The COW algorithm would become much more complex and slow since now many otherwise-unrelated references to the same block need to be updated whenever that block is updated (copied).
Bob -- Bob Friesenhahn bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer, http://www.GraphicsMagick.org/ _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
