examples of creating/managing processor groups

We have a high load on our 5.1 Tru64 box and I was thinking
of trying to give one particular application and its' children
(apache web server) one of the processors. I imagine I should
be using pset_create(1) and so on. Are there any good examples
of doing this. I see the man pages, but having some good examples
of doing this, esp. in the case of a web server like apache that
forks children, all of whom I would like to be on the processor.
Thanks for any help!