Anton Rang wrote:
It's also worth noting that the customers for whom streaming is a real issue tend to be those who are willing to spend a lot of money for reliability (think replicating the whole system+storage) rather than compromising performance; for them, simply the checksumming overhead and lack of direct I/O in (today's) ZFS may be unacceptable. Is it
That statement to me is inconsistent. The customers want reliability but the way that ZFS provides it that no other filesystem does today is too much of an overhead, sigh. So do they really want reliability of their data or not ?
What proof is there that the checksumming in ZFS is actually hurting any performance ? We know that the implementation of the fletcher algorithms can be improved on some systems (a test implementation exists for UltraSPARC T1).
-- Darren J Moffat _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
