ZFS uses a 128k block size. If you change dd to use a bs=128k, do you observe any performance improvement?
> | # time dd if=zeros-10g of=/dev/null bs=8k > count=102400 > | 102400+0 records in > | 102400+0 records out > > | real 1m8.763s > | user 0m0.104s > | sys 0m1.759s It's also worth noting that this dd used less system and user time than the read from the raw device, yet took a longer time in "real" time. This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
