> I've now merged the code with the latest sources (from anoncvs),
> but still want to tidy up the debug trace code a little further.
> (in particular add an option for either 'wall clock' timestamps
> or 'cpu usage' ones.)

BTW, I count the debugging output changes as part of the `useless'
part.  You can already get all of this information from ktrace(1), and
it adds *less* overhead and so is more accurate.