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RE: zIIP processor (ENGINE type IP)

by davekreiss :: Rate this Message:

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> Also, my question, zXXX hardware would use Assist processors before CP
> to drive the cost down.  Is this prioritization implemented in
> Hercules, or does it JUST RUN without considering the workload?

Work gets dispatched on a zIIP or zAAP because IBM has implemented code
to cause the dispatcher to signify that the work is eligible so this is
a purely z/OS implementation.  z/OS handles all the dispatching to these
specialty processors or may dispatch to regular processors if the
specialty processor(s) are over utilized.

Dave

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