Strange disk problem

[Jeremie Le Hen]

Hi David,

On Tue, Apr 20, 2010 at 08:58:49AM -0700, David Ehrmann wrote:
> On Tue, Apr 20, 2010 at 5:29 AM, Attilio Rao <attilio at freebsd.org> wrote:
> >
> >
> > David,
> > do you think you are willing to re-create the problem and do a PMC
> > analysis on it?
> > (If you need any guidance let me know, I will be happy to give it).
> >
> >
> Maybe, but I don't know what PMC analysis is, so a lot of guidance might be
> required.

Quick howto from Robert Watson:
http://lists.freebsd.org/pipermail/freebsd-current/2006-February/061096.html

Other interesting links:
http://people.freebsd.org/~jkoshy/projects/perf-measurement/
http://people.freebsd.org/~jkoshy/download/acm-apr-09.pdf

Regards,
-- 
Jeremie Le Hen

Humans are born free and equal.  But some are more equal than others.
					    Coluche