Article on Sun's DTrace

[Wilko Bulte]

On Thu, Jul 08, 2004 at 01:23:04AM -0700, Avleen Vig wrote:
> On Thu, Jul 08, 2004 at 03:46:24AM -0400, Daniel Ellard wrote:
> > I don't doubt that DTrace took a long time to do.  However, in most
> > projects the design phase consumes a lot of time, and it is often the
> > case that unforeseen problems or changes in the feature set cost the
> > developers a lot of time.  So while it might have taken six years to
> > write DTrace the first time, I suspect it would take a fraction of
> > that time to re-implement.  (It certainly might be longer than "a few
> > months" and I'm not going to quibble.  We won't know the precise
> > number until someone does the port.)
> 
> They said "6 staff-years". This means if they have 6 people working on
> it full time, it took 1 year to complete. If they had 60 people full
> time, it took just over 5 weeks (technically, i doubt that would work
> practically).

It works about as well as having 3 women deliver a baby in 3 months.

-- 
Wilko Bulte				wilko at FreeBSD.org