Large resources required to build profiled gcc

[Brad Lucier]

> > So I reran it serially, and got this information from top:
> > 
> >  23017 lucier     1  20    0 3075M 1680M cpu/1    0:46 20.77% gengenrtl
> > 
> > It's fairly remarkable that gengenrtl takes 3 GB of swap space,
> > no wonder it ran out of virtual memory.
> > 
> > Is there some way to reduce these resource requirements?  If not, only
> > people with fairly large machines will be able to build/test/run these
> > profiled programs.
> > 
> 
> This smells like a bug in compiling gengenrtl more than being for real.
> I've screwed up things before that cause gengenrtl to end up running 
> forever, rather than segfault.
> Whenever it did this, it would just keep eating up memory.

Well, it did finish, and gave a correct output (I think).

Brad