Article on Sun's DTrace

[Avleen Vig]

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).

>From speaking to a friend at sun, I do know it took a long time and a
lot of effort, and was *not* a simple thing to implement.