iogen is a pretty good tool for 
creating worse case scenarios
http://freshmeat.net/projects/iogen/

-Jaime Fournier
ober@LinBSD.org
ober@NetBSD.org


On Wed, 17 Oct 2007, Martin Fouts wrote:

> Date: Wed, 17 Oct 2007 15:30:07 -0700
> From: Martin Fouts <mfouts@danger.com>
> To: tech-kern@NetBSD.org
> Subject: Filesystem I/O conformance testing?
> 
> I'm adding a new file system to NetBSD to support NAND and am far enough
> along to start serious testing.
>
> I thought I'd canvas the group to see if there's any existing
> conformance test suite that anyone likes that I might have missed.
>
> We're beating on the file system with lmbench, bonnie, and fsx, but
> we're wondering if there's anything else that we could use.  I've looked
> at the Open Posix Test Suite, but it's not really testing fs
> conformance.
>
> Marty
>