An order of magnitude higher IOPS needed with ZFS than UFS

[Adam Vande More]

On Wed, Jun 12, 2013 at 6:49 AM, Jeremy Chadwick <jdc at koitsu.org> wrote:

> Mark, do you have any references for this?  I'd love to learn/read more
> about this engineering/design aspect (I won't say flaw, I'll just say
> aspect) to ZFS, as it's the first I've heard of it.


Recently, I dd'ed out the free space on a ZFS volume.  The last few MB's
took like an hour and io seemed to drop exponentially once past 80% or so.
 Nothing to do with SSD's



-- 
Adam Vande More