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Date: Fri, 4 Feb 2011 13:29:57 -0800
From: Jeremy Chadwick <freebsd@jdc.parodius.com>
To: Bruce Cran <bruce@cran.org.uk>
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Cc: FreeBSD Filesystems <freebsd-fs@freebsd.org>
Subject: Re: geom_sched and ZFS
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On Fri, Feb 04, 2011 at 05:28:22PM +0000, Bruce Cran wrote:
> On Fri, 4 Feb 2011 08:40:03 -0800
> Freddie Cash <fjwcash@gmail.com> wrote:
> 
> > Just curious if anyone has played around with geom_sched underneath
> > ZFS, and found it to be extremely worthwhile, or not worth the bother,
> > or if if it should be avoided altogether.
> 
> ZFS has its own I/O scheduler so shouldn't have any use for geom_sched.
> See http://www.solarisinternals.com/wiki/index.php/ZFS_Performance for
> details.

And furthermore, gsched greatly angers things like sysinstall.

-- 
| Jeremy Chadwick                                   jdc@parodius.com |
| Parodius Networking                       http://www.parodius.com/ |
| UNIX Systems Administrator                  Mountain View, CA, USA |
| Making life hard for others since 1977.               PGP 4BD6C0CB |