On Mon, 13 Jul 2009, Joerg Schilling wrote:
cpio reads/writes in 8192 byte chunks from the filesystem.
Yes, I was just reading the cpio manual page and see that. I think that re-reading the 128K zfs block 16 times to satisfy each request for 8192 bytes explains the 16X performance loss when caching is disabled. I don't think that this is strictly a bug since it is what the database folks are looking for.
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
