ZFS read/write performance slows with time

[Artem Belevich]

On Wed, Mar 21, 2012 at 4:56 PM, andy thomas <andy at time-domain.co.uk> wrote:
> A server running 64-bit FreeBSD 8.0 boots from a SATA disk and then mounts a
...
> But over a period of time, this performance begins to deteriorate and after
> 180 days of uptime

If it's indeed 8.0 that you are running, I would strongly recommend
upgrading to 8-STABLE or 8.3 when it's released.
A *lot* of things in ZFS got fixed/improved since ZFSv13 in 8.0.

--Artem