FreeBSD + ZFS on a production server?

Fabian Keil freebsd-listen at fabiankeil.de
Sun Jun 8 20:29:14 UTC 2008


"Christian Walther" <cptsalek at gmail.com> wrote:

> 2008/6/8 Fabian Keil <freebsd-listen at fabiankeil.de>:
> > "Anders Häggström" <hagge.lists at intercorner.net> wrote:
> >
> [...]
> > Just in case you assume that ZFS on OpenSolaris 2008.05
> > would be superior to ZFS on FreeBSD, this hasn't been my
> > experience.
> >
> > On a system with an Athlon 1700+ and only 512 MB of RAM,
> > receiving snapshots on OpenSolaris renders the GUI pretty
> > much useless.
> >
> > On FreeBSD ZFS operations can cause delays as well, but it's
> > significantly better than on OpenSolaris, even though FreeBSD's
> > ZFS pool lies on a geli-encrypted gmirror while OpenSolaris uses
> > the disk directly.
> >
> This hasn't anything to do with ZFS but on the different configuration
> of the clockrate. FreeBSD uses 1000 ticks, while it's 500 on Solaris.

With OpenSolaris 2008.05 the GUI becomes unresponsive for
multiple-seconds on my system, and it's not clear to me
how the clock rate difference would explain that.

Fabian
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