[OmniOS-discuss] performance extrremely low from nothing !

[Bob Friesenhahn]

On Tue, 24 May 2016, Dirk-Jan Wemmers wrote:

> Hi Fabio,
>
> is your pool (or one of your individual vdev’s) almost full? ZFS performance can take quite a nosedive when it fills up above say 80%.

Also, deduplication can cause a precipitous nose-dive in performance 
if it is enabled, enough data is written, and there is not enough 
memory.

Bob
-- 
Bob Friesenhahn
bfriesen at simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/