On Tuesday, 03/13/2007 at 10:41 CET, Rob van der Heij <[EMAIL PROTECTED]> wrote: > > z/VM 5.3 will provide simulation and virtualization support of zIIP and > > zAAP engines for guest exploitation. z/VM 5.3 does not itself exploit > > these engines. > > And the guest who can use them will only run on real engines rather > than IFL, so z/VM 5.3 would offer you a way to convert expensive > cycles into cheap ones :-) Not to pass a real zAAP straight to > guests who know what to do with it without paying z/VM license for it. > So that's something only for testing the function on z/OS ?
The simulation support is useful to determine what percentage of a z/OS workload would be placed on a zIIP or zAAP. Once you find that you are running out of headroom, you may decide that a sufficiently large percentage of the z/OS cycles are running on zIIPs or zAAPs that you may decide the next CPU to add is a real zIPP/zAAP (or share the one we had.) Alan Altmark z/VM Development IBM Endicott
